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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_spi.c @ 89:fc21fb5b171b default tip
Make error message more useful
author | Daniel O'Connor <darius@dons.net.au> |
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date | Fri, 13 Mar 2015 11:39:59 +1030 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32f10x_spi.c |
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4 * @author MCD Application Team |
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5 * @version V3.5.0 |
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6 * @date 11-March-2011 |
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7 * @brief This file provides all the SPI firmware functions. |
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8 ****************************************************************************** |
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9 * @attention |
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10 * |
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11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
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12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
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13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
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14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
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15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
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16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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17 * |
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18 * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
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19 ****************************************************************************** |
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20 */ |
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21 |
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22 /* Includes ------------------------------------------------------------------*/ |
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23 #include "stm32f10x_spi.h" |
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24 #include "stm32f10x_rcc.h" |
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25 |
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26 /** @addtogroup STM32F10x_StdPeriph_Driver |
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27 * @{ |
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28 */ |
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29 |
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30 /** @defgroup SPI |
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31 * @brief SPI driver modules |
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32 * @{ |
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33 */ |
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34 |
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35 /** @defgroup SPI_Private_TypesDefinitions |
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36 * @{ |
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37 */ |
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38 |
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39 /** |
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40 * @} |
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41 */ |
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42 |
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43 |
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44 /** @defgroup SPI_Private_Defines |
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45 * @{ |
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46 */ |
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47 |
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48 /* SPI SPE mask */ |
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49 #define CR1_SPE_Set ((uint16_t)0x0040) |
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50 #define CR1_SPE_Reset ((uint16_t)0xFFBF) |
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51 |
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52 /* I2S I2SE mask */ |
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53 #define I2SCFGR_I2SE_Set ((uint16_t)0x0400) |
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54 #define I2SCFGR_I2SE_Reset ((uint16_t)0xFBFF) |
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55 |
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56 /* SPI CRCNext mask */ |
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57 #define CR1_CRCNext_Set ((uint16_t)0x1000) |
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58 |
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59 /* SPI CRCEN mask */ |
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60 #define CR1_CRCEN_Set ((uint16_t)0x2000) |
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61 #define CR1_CRCEN_Reset ((uint16_t)0xDFFF) |
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62 |
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63 /* SPI SSOE mask */ |
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64 #define CR2_SSOE_Set ((uint16_t)0x0004) |
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65 #define CR2_SSOE_Reset ((uint16_t)0xFFFB) |
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66 |
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67 /* SPI registers Masks */ |
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68 #define CR1_CLEAR_Mask ((uint16_t)0x3040) |
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69 #define I2SCFGR_CLEAR_Mask ((uint16_t)0xF040) |
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70 |
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71 /* SPI or I2S mode selection masks */ |
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72 #define SPI_Mode_Select ((uint16_t)0xF7FF) |
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73 #define I2S_Mode_Select ((uint16_t)0x0800) |
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74 |
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75 /* I2S clock source selection masks */ |
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76 #define I2S2_CLOCK_SRC ((uint32_t)(0x00020000)) |
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77 #define I2S3_CLOCK_SRC ((uint32_t)(0x00040000)) |
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78 #define I2S_MUL_MASK ((uint32_t)(0x0000F000)) |
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79 #define I2S_DIV_MASK ((uint32_t)(0x000000F0)) |
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80 |
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81 /** |
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82 * @} |
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83 */ |
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84 |
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85 /** @defgroup SPI_Private_Macros |
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86 * @{ |
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87 */ |
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88 |
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89 /** |
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90 * @} |
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91 */ |
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92 |
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93 /** @defgroup SPI_Private_Variables |
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94 * @{ |
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95 */ |
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96 |
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97 /** |
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98 * @} |
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99 */ |
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100 |
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101 /** @defgroup SPI_Private_FunctionPrototypes |
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102 * @{ |
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103 */ |
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104 |
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105 /** |
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106 * @} |
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107 */ |
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108 |
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109 /** @defgroup SPI_Private_Functions |
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110 * @{ |
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111 */ |
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112 |
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113 /** |
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114 * @brief Deinitializes the SPIx peripheral registers to their default |
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115 * reset values (Affects also the I2Ss). |
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116 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
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117 * @retval None |
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118 */ |
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119 void SPI_I2S_DeInit(SPI_TypeDef* SPIx) |
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120 { |
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121 /* Check the parameters */ |
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122 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
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123 |
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124 if (SPIx == SPI1) |
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125 { |
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126 /* Enable SPI1 reset state */ |
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127 RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, ENABLE); |
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128 /* Release SPI1 from reset state */ |
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129 RCC_APB2PeriphResetCmd(RCC_APB2Periph_SPI1, DISABLE); |
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130 } |
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131 else if (SPIx == SPI2) |
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132 { |
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133 /* Enable SPI2 reset state */ |
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134 RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, ENABLE); |
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135 /* Release SPI2 from reset state */ |
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136 RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI2, DISABLE); |
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137 } |
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138 else |
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139 { |
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140 if (SPIx == SPI3) |
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141 { |
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142 /* Enable SPI3 reset state */ |
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143 RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, ENABLE); |
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144 /* Release SPI3 from reset state */ |
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145 RCC_APB1PeriphResetCmd(RCC_APB1Periph_SPI3, DISABLE); |
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146 } |
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147 } |
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148 } |
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149 |
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150 /** |
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151 * @brief Initializes the SPIx peripheral according to the specified |
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152 * parameters in the SPI_InitStruct. |
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153 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
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154 * @param SPI_InitStruct: pointer to a SPI_InitTypeDef structure that |
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155 * contains the configuration information for the specified SPI peripheral. |
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156 * @retval None |
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157 */ |
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158 void SPI_Init(SPI_TypeDef* SPIx, SPI_InitTypeDef* SPI_InitStruct) |
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159 { |
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160 uint16_t tmpreg = 0; |
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161 |
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162 /* check the parameters */ |
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163 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
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164 |
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165 /* Check the SPI parameters */ |
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166 assert_param(IS_SPI_DIRECTION_MODE(SPI_InitStruct->SPI_Direction)); |
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167 assert_param(IS_SPI_MODE(SPI_InitStruct->SPI_Mode)); |
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168 assert_param(IS_SPI_DATASIZE(SPI_InitStruct->SPI_DataSize)); |
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169 assert_param(IS_SPI_CPOL(SPI_InitStruct->SPI_CPOL)); |
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170 assert_param(IS_SPI_CPHA(SPI_InitStruct->SPI_CPHA)); |
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171 assert_param(IS_SPI_NSS(SPI_InitStruct->SPI_NSS)); |
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172 assert_param(IS_SPI_BAUDRATE_PRESCALER(SPI_InitStruct->SPI_BaudRatePrescaler)); |
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173 assert_param(IS_SPI_FIRST_BIT(SPI_InitStruct->SPI_FirstBit)); |
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174 assert_param(IS_SPI_CRC_POLYNOMIAL(SPI_InitStruct->SPI_CRCPolynomial)); |
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175 |
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176 /*---------------------------- SPIx CR1 Configuration ------------------------*/ |
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177 /* Get the SPIx CR1 value */ |
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178 tmpreg = SPIx->CR1; |
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179 /* Clear BIDIMode, BIDIOE, RxONLY, SSM, SSI, LSBFirst, BR, MSTR, CPOL and CPHA bits */ |
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180 tmpreg &= CR1_CLEAR_Mask; |
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181 /* Configure SPIx: direction, NSS management, first transmitted bit, BaudRate prescaler |
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182 master/salve mode, CPOL and CPHA */ |
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183 /* Set BIDImode, BIDIOE and RxONLY bits according to SPI_Direction value */ |
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184 /* Set SSM, SSI and MSTR bits according to SPI_Mode and SPI_NSS values */ |
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185 /* Set LSBFirst bit according to SPI_FirstBit value */ |
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186 /* Set BR bits according to SPI_BaudRatePrescaler value */ |
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187 /* Set CPOL bit according to SPI_CPOL value */ |
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188 /* Set CPHA bit according to SPI_CPHA value */ |
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189 tmpreg |= (uint16_t)((uint32_t)SPI_InitStruct->SPI_Direction | SPI_InitStruct->SPI_Mode | |
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190 SPI_InitStruct->SPI_DataSize | SPI_InitStruct->SPI_CPOL | |
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191 SPI_InitStruct->SPI_CPHA | SPI_InitStruct->SPI_NSS | |
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192 SPI_InitStruct->SPI_BaudRatePrescaler | SPI_InitStruct->SPI_FirstBit); |
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193 /* Write to SPIx CR1 */ |
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194 SPIx->CR1 = tmpreg; |
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195 |
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196 /* Activate the SPI mode (Reset I2SMOD bit in I2SCFGR register) */ |
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197 SPIx->I2SCFGR &= SPI_Mode_Select; |
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198 |
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199 /*---------------------------- SPIx CRCPOLY Configuration --------------------*/ |
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200 /* Write to SPIx CRCPOLY */ |
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201 SPIx->CRCPR = SPI_InitStruct->SPI_CRCPolynomial; |
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202 } |
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203 |
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204 /** |
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205 * @brief Initializes the SPIx peripheral according to the specified |
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206 * parameters in the I2S_InitStruct. |
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207 * @param SPIx: where x can be 2 or 3 to select the SPI peripheral |
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208 * (configured in I2S mode). |
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209 * @param I2S_InitStruct: pointer to an I2S_InitTypeDef structure that |
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210 * contains the configuration information for the specified SPI peripheral |
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211 * configured in I2S mode. |
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212 * @note |
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213 * The function calculates the optimal prescaler needed to obtain the most |
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214 * accurate audio frequency (depending on the I2S clock source, the PLL values |
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215 * and the product configuration). But in case the prescaler value is greater |
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216 * than 511, the default value (0x02) will be configured instead. * |
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217 * @retval None |
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218 */ |
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219 void I2S_Init(SPI_TypeDef* SPIx, I2S_InitTypeDef* I2S_InitStruct) |
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220 { |
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221 uint16_t tmpreg = 0, i2sdiv = 2, i2sodd = 0, packetlength = 1; |
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222 uint32_t tmp = 0; |
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223 RCC_ClocksTypeDef RCC_Clocks; |
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224 uint32_t sourceclock = 0; |
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225 |
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226 /* Check the I2S parameters */ |
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227 assert_param(IS_SPI_23_PERIPH(SPIx)); |
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228 assert_param(IS_I2S_MODE(I2S_InitStruct->I2S_Mode)); |
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229 assert_param(IS_I2S_STANDARD(I2S_InitStruct->I2S_Standard)); |
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230 assert_param(IS_I2S_DATA_FORMAT(I2S_InitStruct->I2S_DataFormat)); |
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231 assert_param(IS_I2S_MCLK_OUTPUT(I2S_InitStruct->I2S_MCLKOutput)); |
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232 assert_param(IS_I2S_AUDIO_FREQ(I2S_InitStruct->I2S_AudioFreq)); |
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233 assert_param(IS_I2S_CPOL(I2S_InitStruct->I2S_CPOL)); |
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234 |
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235 /*----------------------- SPIx I2SCFGR & I2SPR Configuration -----------------*/ |
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236 /* Clear I2SMOD, I2SE, I2SCFG, PCMSYNC, I2SSTD, CKPOL, DATLEN and CHLEN bits */ |
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237 SPIx->I2SCFGR &= I2SCFGR_CLEAR_Mask; |
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238 SPIx->I2SPR = 0x0002; |
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239 |
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240 /* Get the I2SCFGR register value */ |
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241 tmpreg = SPIx->I2SCFGR; |
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242 |
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243 /* If the default value has to be written, reinitialize i2sdiv and i2sodd*/ |
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244 if(I2S_InitStruct->I2S_AudioFreq == I2S_AudioFreq_Default) |
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245 { |
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246 i2sodd = (uint16_t)0; |
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247 i2sdiv = (uint16_t)2; |
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248 } |
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249 /* If the requested audio frequency is not the default, compute the prescaler */ |
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250 else |
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251 { |
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252 /* Check the frame length (For the Prescaler computing) */ |
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253 if(I2S_InitStruct->I2S_DataFormat == I2S_DataFormat_16b) |
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254 { |
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255 /* Packet length is 16 bits */ |
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256 packetlength = 1; |
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257 } |
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258 else |
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259 { |
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260 /* Packet length is 32 bits */ |
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261 packetlength = 2; |
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262 } |
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263 |
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264 /* Get the I2S clock source mask depending on the peripheral number */ |
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265 if(((uint32_t)SPIx) == SPI2_BASE) |
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266 { |
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267 /* The mask is relative to I2S2 */ |
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268 tmp = I2S2_CLOCK_SRC; |
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269 } |
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270 else |
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271 { |
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272 /* The mask is relative to I2S3 */ |
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273 tmp = I2S3_CLOCK_SRC; |
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274 } |
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275 |
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276 /* Check the I2S clock source configuration depending on the Device: |
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277 Only Connectivity line devices have the PLL3 VCO clock */ |
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278 #ifdef STM32F10X_CL |
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279 if((RCC->CFGR2 & tmp) != 0) |
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280 { |
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281 /* Get the configuration bits of RCC PLL3 multiplier */ |
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282 tmp = (uint32_t)((RCC->CFGR2 & I2S_MUL_MASK) >> 12); |
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283 |
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284 /* Get the value of the PLL3 multiplier */ |
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285 if((tmp > 5) && (tmp < 15)) |
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286 { |
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287 /* Multiplier is between 8 and 14 (value 15 is forbidden) */ |
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288 tmp += 2; |
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289 } |
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290 else |
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291 { |
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292 if (tmp == 15) |
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293 { |
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294 /* Multiplier is 20 */ |
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295 tmp = 20; |
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296 } |
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297 } |
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298 /* Get the PREDIV2 value */ |
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299 sourceclock = (uint32_t)(((RCC->CFGR2 & I2S_DIV_MASK) >> 4) + 1); |
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300 |
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301 /* Calculate the Source Clock frequency based on PLL3 and PREDIV2 values */ |
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302 sourceclock = (uint32_t) ((HSE_Value / sourceclock) * tmp * 2); |
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303 } |
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304 else |
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305 { |
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306 /* I2S Clock source is System clock: Get System Clock frequency */ |
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307 RCC_GetClocksFreq(&RCC_Clocks); |
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308 |
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309 /* Get the source clock value: based on System Clock value */ |
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310 sourceclock = RCC_Clocks.SYSCLK_Frequency; |
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311 } |
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312 #else /* STM32F10X_HD */ |
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313 /* I2S Clock source is System clock: Get System Clock frequency */ |
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314 RCC_GetClocksFreq(&RCC_Clocks); |
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315 |
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316 /* Get the source clock value: based on System Clock value */ |
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317 sourceclock = RCC_Clocks.SYSCLK_Frequency; |
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318 #endif /* STM32F10X_CL */ |
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319 |
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320 /* Compute the Real divider depending on the MCLK output state with a floating point */ |
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321 if(I2S_InitStruct->I2S_MCLKOutput == I2S_MCLKOutput_Enable) |
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322 { |
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323 /* MCLK output is enabled */ |
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324 tmp = (uint16_t)(((((sourceclock / 256) * 10) / I2S_InitStruct->I2S_AudioFreq)) + 5); |
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325 } |
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326 else |
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327 { |
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328 /* MCLK output is disabled */ |
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329 tmp = (uint16_t)(((((sourceclock / (32 * packetlength)) *10 ) / I2S_InitStruct->I2S_AudioFreq)) + 5); |
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330 } |
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331 |
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332 /* Remove the floating point */ |
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333 tmp = tmp / 10; |
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334 |
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335 /* Check the parity of the divider */ |
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336 i2sodd = (uint16_t)(tmp & (uint16_t)0x0001); |
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337 |
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338 /* Compute the i2sdiv prescaler */ |
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339 i2sdiv = (uint16_t)((tmp - i2sodd) / 2); |
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340 |
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341 /* Get the Mask for the Odd bit (SPI_I2SPR[8]) register */ |
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342 i2sodd = (uint16_t) (i2sodd << 8); |
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343 } |
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344 |
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345 /* Test if the divider is 1 or 0 or greater than 0xFF */ |
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346 if ((i2sdiv < 2) || (i2sdiv > 0xFF)) |
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|
347 { |
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|
348 /* Set the default values */ |
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349 i2sdiv = 2; |
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|
350 i2sodd = 0; |
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|
351 } |
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|
352 |
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|
353 /* Write to SPIx I2SPR register the computed value */ |
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|
354 SPIx->I2SPR = (uint16_t)(i2sdiv | (uint16_t)(i2sodd | (uint16_t)I2S_InitStruct->I2S_MCLKOutput)); |
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355 |
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|
356 /* Configure the I2S with the SPI_InitStruct values */ |
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357 tmpreg |= (uint16_t)(I2S_Mode_Select | (uint16_t)(I2S_InitStruct->I2S_Mode | \ |
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358 (uint16_t)(I2S_InitStruct->I2S_Standard | (uint16_t)(I2S_InitStruct->I2S_DataFormat | \ |
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359 (uint16_t)I2S_InitStruct->I2S_CPOL)))); |
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|
360 |
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parents:
diff
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|
361 /* Write to SPIx I2SCFGR */ |
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parents:
diff
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|
362 SPIx->I2SCFGR = tmpreg; |
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parents:
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|
363 } |
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parents:
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|
364 |
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parents:
diff
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|
365 /** |
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366 * @brief Fills each SPI_InitStruct member with its default value. |
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367 * @param SPI_InitStruct : pointer to a SPI_InitTypeDef structure which will be initialized. |
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368 * @retval None |
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|
369 */ |
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370 void SPI_StructInit(SPI_InitTypeDef* SPI_InitStruct) |
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371 { |
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|
372 /*--------------- Reset SPI init structure parameters values -----------------*/ |
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|
373 /* Initialize the SPI_Direction member */ |
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374 SPI_InitStruct->SPI_Direction = SPI_Direction_2Lines_FullDuplex; |
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375 /* initialize the SPI_Mode member */ |
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|
376 SPI_InitStruct->SPI_Mode = SPI_Mode_Slave; |
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377 /* initialize the SPI_DataSize member */ |
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|
378 SPI_InitStruct->SPI_DataSize = SPI_DataSize_8b; |
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379 /* Initialize the SPI_CPOL member */ |
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380 SPI_InitStruct->SPI_CPOL = SPI_CPOL_Low; |
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|
381 /* Initialize the SPI_CPHA member */ |
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382 SPI_InitStruct->SPI_CPHA = SPI_CPHA_1Edge; |
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diff
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383 /* Initialize the SPI_NSS member */ |
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parents:
diff
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|
384 SPI_InitStruct->SPI_NSS = SPI_NSS_Hard; |
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parents:
diff
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|
385 /* Initialize the SPI_BaudRatePrescaler member */ |
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parents:
diff
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|
386 SPI_InitStruct->SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2; |
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parents:
diff
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|
387 /* Initialize the SPI_FirstBit member */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
388 SPI_InitStruct->SPI_FirstBit = SPI_FirstBit_MSB; |
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Initial commit of STM32 test code.
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parents:
diff
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|
389 /* Initialize the SPI_CRCPolynomial member */ |
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Initial commit of STM32 test code.
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parents:
diff
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390 SPI_InitStruct->SPI_CRCPolynomial = 7; |
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Initial commit of STM32 test code.
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parents:
diff
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|
391 } |
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parents:
diff
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|
392 |
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Initial commit of STM32 test code.
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parents:
diff
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|
393 /** |
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parents:
diff
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|
394 * @brief Fills each I2S_InitStruct member with its default value. |
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parents:
diff
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395 * @param I2S_InitStruct : pointer to a I2S_InitTypeDef structure which will be initialized. |
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Initial commit of STM32 test code.
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parents:
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396 * @retval None |
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parents:
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|
397 */ |
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parents:
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398 void I2S_StructInit(I2S_InitTypeDef* I2S_InitStruct) |
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parents:
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399 { |
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parents:
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|
400 /*--------------- Reset I2S init structure parameters values -----------------*/ |
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parents:
diff
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|
401 /* Initialize the I2S_Mode member */ |
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parents:
diff
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402 I2S_InitStruct->I2S_Mode = I2S_Mode_SlaveTx; |
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parents:
diff
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403 |
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parents:
diff
changeset
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404 /* Initialize the I2S_Standard member */ |
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Initial commit of STM32 test code.
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parents:
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405 I2S_InitStruct->I2S_Standard = I2S_Standard_Phillips; |
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Initial commit of STM32 test code.
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parents:
diff
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|
406 |
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Initial commit of STM32 test code.
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parents:
diff
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407 /* Initialize the I2S_DataFormat member */ |
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Initial commit of STM32 test code.
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parents:
diff
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|
408 I2S_InitStruct->I2S_DataFormat = I2S_DataFormat_16b; |
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Initial commit of STM32 test code.
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parents:
diff
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409 |
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Initial commit of STM32 test code.
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parents:
diff
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|
410 /* Initialize the I2S_MCLKOutput member */ |
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Initial commit of STM32 test code.
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parents:
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411 I2S_InitStruct->I2S_MCLKOutput = I2S_MCLKOutput_Disable; |
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parents:
diff
changeset
|
412 |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
413 /* Initialize the I2S_AudioFreq member */ |
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Initial commit of STM32 test code.
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parents:
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414 I2S_InitStruct->I2S_AudioFreq = I2S_AudioFreq_Default; |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
415 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
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416 /* Initialize the I2S_CPOL member */ |
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Initial commit of STM32 test code.
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parents:
diff
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417 I2S_InitStruct->I2S_CPOL = I2S_CPOL_Low; |
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Initial commit of STM32 test code.
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parents:
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418 } |
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parents:
diff
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419 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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420 /** |
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parents:
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|
421 * @brief Enables or disables the specified SPI peripheral. |
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parents:
diff
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|
422 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
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Initial commit of STM32 test code.
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parents:
diff
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|
423 * @param NewState: new state of the SPIx peripheral. |
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Initial commit of STM32 test code.
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parents:
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424 * This parameter can be: ENABLE or DISABLE. |
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Initial commit of STM32 test code.
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parents:
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|
425 * @retval None |
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Initial commit of STM32 test code.
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parents:
diff
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|
426 */ |
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parents:
diff
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|
427 void SPI_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState) |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
428 { |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
429 /* Check the parameters */ |
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Initial commit of STM32 test code.
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parents:
diff
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|
430 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
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Initial commit of STM32 test code.
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parents:
diff
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|
431 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
432 if (NewState != DISABLE) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
433 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
434 /* Enable the selected SPI peripheral */ |
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Initial commit of STM32 test code.
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parents:
diff
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|
435 SPIx->CR1 |= CR1_SPE_Set; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
436 } |
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Initial commit of STM32 test code.
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parents:
diff
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|
437 else |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
438 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
439 /* Disable the selected SPI peripheral */ |
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Initial commit of STM32 test code.
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parents:
diff
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|
440 SPIx->CR1 &= CR1_SPE_Reset; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
441 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
442 } |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
443 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
444 /** |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
445 * @brief Enables or disables the specified SPI peripheral (in I2S mode). |
c59513fd84fb
Initial commit of STM32 test code.
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parents:
diff
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|
446 * @param SPIx: where x can be 2 or 3 to select the SPI peripheral. |
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Initial commit of STM32 test code.
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parents:
diff
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|
447 * @param NewState: new state of the SPIx peripheral. |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
448 * This parameter can be: ENABLE or DISABLE. |
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Initial commit of STM32 test code.
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parents:
diff
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|
449 * @retval None |
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Initial commit of STM32 test code.
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parents:
diff
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|
450 */ |
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parents:
diff
changeset
|
451 void I2S_Cmd(SPI_TypeDef* SPIx, FunctionalState NewState) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
452 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
453 /* Check the parameters */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
454 assert_param(IS_SPI_23_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
455 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
456 if (NewState != DISABLE) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
457 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
458 /* Enable the selected SPI peripheral (in I2S mode) */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
459 SPIx->I2SCFGR |= I2SCFGR_I2SE_Set; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
460 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
461 else |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
462 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
463 /* Disable the selected SPI peripheral (in I2S mode) */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
464 SPIx->I2SCFGR &= I2SCFGR_I2SE_Reset; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
465 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
466 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
467 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
468 /** |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
469 * @brief Enables or disables the specified SPI/I2S interrupts. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
470 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
471 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
472 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
473 * @param SPI_I2S_IT: specifies the SPI/I2S interrupt source to be enabled or disabled. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
474 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
475 * @arg SPI_I2S_IT_TXE: Tx buffer empty interrupt mask |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
476 * @arg SPI_I2S_IT_RXNE: Rx buffer not empty interrupt mask |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
477 * @arg SPI_I2S_IT_ERR: Error interrupt mask |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
478 * @param NewState: new state of the specified SPI/I2S interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
479 * This parameter can be: ENABLE or DISABLE. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
480 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
481 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
482 void SPI_I2S_ITConfig(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT, FunctionalState NewState) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
483 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
484 uint16_t itpos = 0, itmask = 0 ; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
485 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
486 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
487 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
488 assert_param(IS_SPI_I2S_CONFIG_IT(SPI_I2S_IT)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
489 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
490 /* Get the SPI/I2S IT index */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
491 itpos = SPI_I2S_IT >> 4; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
492 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
493 /* Set the IT mask */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
494 itmask = (uint16_t)1 << (uint16_t)itpos; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
495 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
496 if (NewState != DISABLE) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
497 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
498 /* Enable the selected SPI/I2S interrupt */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
499 SPIx->CR2 |= itmask; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
500 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
501 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
502 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
503 /* Disable the selected SPI/I2S interrupt */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
504 SPIx->CR2 &= (uint16_t)~itmask; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
505 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
506 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
507 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
508 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
509 * @brief Enables or disables the SPIx/I2Sx DMA interface. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
510 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
511 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
512 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
513 * @param SPI_I2S_DMAReq: specifies the SPI/I2S DMA transfer request to be enabled or disabled. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
514 * This parameter can be any combination of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
515 * @arg SPI_I2S_DMAReq_Tx: Tx buffer DMA transfer request |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
516 * @arg SPI_I2S_DMAReq_Rx: Rx buffer DMA transfer request |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
517 * @param NewState: new state of the selected SPI/I2S DMA transfer request. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
518 * This parameter can be: ENABLE or DISABLE. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
519 * @retval None |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
520 */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
521 void SPI_I2S_DMACmd(SPI_TypeDef* SPIx, uint16_t SPI_I2S_DMAReq, FunctionalState NewState) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
522 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
523 /* Check the parameters */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
524 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
525 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
526 assert_param(IS_SPI_I2S_DMAREQ(SPI_I2S_DMAReq)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
527 if (NewState != DISABLE) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
528 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
529 /* Enable the selected SPI/I2S DMA requests */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
530 SPIx->CR2 |= SPI_I2S_DMAReq; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
531 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
532 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
533 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
534 /* Disable the selected SPI/I2S DMA requests */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
535 SPIx->CR2 &= (uint16_t)~SPI_I2S_DMAReq; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
536 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
537 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
538 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
539 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
540 * @brief Transmits a Data through the SPIx/I2Sx peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
541 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
542 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
543 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
544 * @param Data : Data to be transmitted. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
545 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
546 */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
547 void SPI_I2S_SendData(SPI_TypeDef* SPIx, uint16_t Data) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
548 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
549 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
550 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
551 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
552 /* Write in the DR register the data to be sent */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
553 SPIx->DR = Data; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
554 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
555 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
556 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
557 * @brief Returns the most recent received data by the SPIx/I2Sx peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
558 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
559 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
560 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
561 * @retval The value of the received data. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
562 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
563 uint16_t SPI_I2S_ReceiveData(SPI_TypeDef* SPIx) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
564 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
565 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
566 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
567 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
568 /* Return the data in the DR register */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
569 return SPIx->DR; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
570 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
571 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
572 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
573 * @brief Configures internally by software the NSS pin for the selected SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
574 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
575 * @param SPI_NSSInternalSoft: specifies the SPI NSS internal state. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
576 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
577 * @arg SPI_NSSInternalSoft_Set: Set NSS pin internally |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
578 * @arg SPI_NSSInternalSoft_Reset: Reset NSS pin internally |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
579 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
580 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
581 void SPI_NSSInternalSoftwareConfig(SPI_TypeDef* SPIx, uint16_t SPI_NSSInternalSoft) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
582 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
583 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
584 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
585 assert_param(IS_SPI_NSS_INTERNAL(SPI_NSSInternalSoft)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
586 if (SPI_NSSInternalSoft != SPI_NSSInternalSoft_Reset) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
587 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
588 /* Set NSS pin internally by software */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
589 SPIx->CR1 |= SPI_NSSInternalSoft_Set; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
590 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
591 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
592 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
593 /* Reset NSS pin internally by software */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
594 SPIx->CR1 &= SPI_NSSInternalSoft_Reset; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
595 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
596 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
597 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
598 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
599 * @brief Enables or disables the SS output for the selected SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
600 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
601 * @param NewState: new state of the SPIx SS output. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
602 * This parameter can be: ENABLE or DISABLE. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
603 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
604 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
605 void SPI_SSOutputCmd(SPI_TypeDef* SPIx, FunctionalState NewState) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
606 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
607 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
608 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
609 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
610 if (NewState != DISABLE) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
611 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
612 /* Enable the selected SPI SS output */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
613 SPIx->CR2 |= CR2_SSOE_Set; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
614 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
615 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
616 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
617 /* Disable the selected SPI SS output */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
618 SPIx->CR2 &= CR2_SSOE_Reset; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
619 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
620 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
621 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
622 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
623 * @brief Configures the data size for the selected SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
624 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
625 * @param SPI_DataSize: specifies the SPI data size. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
626 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
627 * @arg SPI_DataSize_16b: Set data frame format to 16bit |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
628 * @arg SPI_DataSize_8b: Set data frame format to 8bit |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
629 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
630 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
631 void SPI_DataSizeConfig(SPI_TypeDef* SPIx, uint16_t SPI_DataSize) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
632 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
633 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
634 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
635 assert_param(IS_SPI_DATASIZE(SPI_DataSize)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
636 /* Clear DFF bit */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
637 SPIx->CR1 &= (uint16_t)~SPI_DataSize_16b; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
638 /* Set new DFF bit value */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
639 SPIx->CR1 |= SPI_DataSize; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
640 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
641 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
642 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
643 * @brief Transmit the SPIx CRC value. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
644 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
645 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
646 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
647 void SPI_TransmitCRC(SPI_TypeDef* SPIx) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
648 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
649 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
650 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
651 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
652 /* Enable the selected SPI CRC transmission */ |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
653 SPIx->CR1 |= CR1_CRCNext_Set; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
654 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
655 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
656 /** |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
657 * @brief Enables or disables the CRC value calculation of the transferred bytes. |
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Initial commit of STM32 test code.
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parents:
diff
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|
658 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
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Initial commit of STM32 test code.
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parents:
diff
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|
659 * @param NewState: new state of the SPIx CRC value calculation. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
660 * This parameter can be: ENABLE or DISABLE. |
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Initial commit of STM32 test code.
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parents:
diff
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|
661 * @retval None |
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Initial commit of STM32 test code.
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parents:
diff
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|
662 */ |
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Initial commit of STM32 test code.
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parents:
diff
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|
663 void SPI_CalculateCRC(SPI_TypeDef* SPIx, FunctionalState NewState) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
664 { |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
665 /* Check the parameters */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
666 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
667 assert_param(IS_FUNCTIONAL_STATE(NewState)); |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
668 if (NewState != DISABLE) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
669 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
670 /* Enable the selected SPI CRC calculation */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
671 SPIx->CR1 |= CR1_CRCEN_Set; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
672 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
673 else |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
674 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
675 /* Disable the selected SPI CRC calculation */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
676 SPIx->CR1 &= CR1_CRCEN_Reset; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
677 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
678 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
679 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
680 /** |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
681 * @brief Returns the transmit or the receive CRC register value for the specified SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
682 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
683 * @param SPI_CRC: specifies the CRC register to be read. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
684 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
685 * @arg SPI_CRC_Tx: Selects Tx CRC register |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
686 * @arg SPI_CRC_Rx: Selects Rx CRC register |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
687 * @retval The selected CRC register value.. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
688 */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
689 uint16_t SPI_GetCRC(SPI_TypeDef* SPIx, uint8_t SPI_CRC) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
690 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
691 uint16_t crcreg = 0; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
692 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
693 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
694 assert_param(IS_SPI_CRC(SPI_CRC)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
695 if (SPI_CRC != SPI_CRC_Rx) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
696 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
697 /* Get the Tx CRC register */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
698 crcreg = SPIx->TXCRCR; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
699 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
700 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
701 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
702 /* Get the Rx CRC register */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
703 crcreg = SPIx->RXCRCR; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
704 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
705 /* Return the selected CRC register */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
706 return crcreg; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
707 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
708 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
709 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
710 * @brief Returns the CRC Polynomial register value for the specified SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
711 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
712 * @retval The CRC Polynomial register value. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
713 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
714 uint16_t SPI_GetCRCPolynomial(SPI_TypeDef* SPIx) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
715 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
716 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
717 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
718 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
719 /* Return the CRC polynomial register */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
720 return SPIx->CRCPR; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
721 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
722 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
723 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
724 * @brief Selects the data transfer direction in bi-directional mode for the specified SPI. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
725 * @param SPIx: where x can be 1, 2 or 3 to select the SPI peripheral. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
726 * @param SPI_Direction: specifies the data transfer direction in bi-directional mode. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
727 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
728 * @arg SPI_Direction_Tx: Selects Tx transmission direction |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
729 * @arg SPI_Direction_Rx: Selects Rx receive direction |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
730 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
731 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
732 void SPI_BiDirectionalLineConfig(SPI_TypeDef* SPIx, uint16_t SPI_Direction) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
733 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
734 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
735 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
736 assert_param(IS_SPI_DIRECTION(SPI_Direction)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
737 if (SPI_Direction == SPI_Direction_Tx) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
738 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
739 /* Set the Tx only mode */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
740 SPIx->CR1 |= SPI_Direction_Tx; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
741 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
742 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
743 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
744 /* Set the Rx only mode */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
745 SPIx->CR1 &= SPI_Direction_Rx; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
746 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
747 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
748 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
749 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
750 * @brief Checks whether the specified SPI/I2S flag is set or not. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
751 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
752 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
753 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
754 * @param SPI_I2S_FLAG: specifies the SPI/I2S flag to check. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
755 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
756 * @arg SPI_I2S_FLAG_TXE: Transmit buffer empty flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
757 * @arg SPI_I2S_FLAG_RXNE: Receive buffer not empty flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
758 * @arg SPI_I2S_FLAG_BSY: Busy flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
759 * @arg SPI_I2S_FLAG_OVR: Overrun flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
760 * @arg SPI_FLAG_MODF: Mode Fault flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
761 * @arg SPI_FLAG_CRCERR: CRC Error flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
762 * @arg I2S_FLAG_UDR: Underrun Error flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
763 * @arg I2S_FLAG_CHSIDE: Channel Side flag. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
764 * @retval The new state of SPI_I2S_FLAG (SET or RESET). |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
765 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
766 FlagStatus SPI_I2S_GetFlagStatus(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
767 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
768 FlagStatus bitstatus = RESET; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
769 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
770 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
771 assert_param(IS_SPI_I2S_GET_FLAG(SPI_I2S_FLAG)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
772 /* Check the status of the specified SPI/I2S flag */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
773 if ((SPIx->SR & SPI_I2S_FLAG) != (uint16_t)RESET) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
774 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
775 /* SPI_I2S_FLAG is set */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
776 bitstatus = SET; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
777 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
778 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
779 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
780 /* SPI_I2S_FLAG is reset */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
781 bitstatus = RESET; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
782 } |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
783 /* Return the SPI_I2S_FLAG status */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
784 return bitstatus; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
785 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
786 |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
787 /** |
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Initial commit of STM32 test code.
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parents:
diff
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|
788 * @brief Clears the SPIx CRC Error (CRCERR) flag. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
789 * @param SPIx: where x can be |
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Initial commit of STM32 test code.
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parents:
diff
changeset
|
790 * - 1, 2 or 3 in SPI mode |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
791 * @param SPI_I2S_FLAG: specifies the SPI flag to clear. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
792 * This function clears only CRCERR flag. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
793 * @note |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
794 * - OVR (OverRun error) flag is cleared by software sequence: a read |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
795 * operation to SPI_DR register (SPI_I2S_ReceiveData()) followed by a read |
c59513fd84fb
Initial commit of STM32 test code.
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parents:
diff
changeset
|
796 * operation to SPI_SR register (SPI_I2S_GetFlagStatus()). |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
797 * - UDR (UnderRun error) flag is cleared by a read operation to |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
798 * SPI_SR register (SPI_I2S_GetFlagStatus()). |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
799 * - MODF (Mode Fault) flag is cleared by software sequence: a read/write |
c59513fd84fb
Initial commit of STM32 test code.
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parents:
diff
changeset
|
800 * operation to SPI_SR register (SPI_I2S_GetFlagStatus()) followed by a |
c59513fd84fb
Initial commit of STM32 test code.
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parents:
diff
changeset
|
801 * write operation to SPI_CR1 register (SPI_Cmd() to enable the SPI). |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
802 * @retval None |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
803 */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
804 void SPI_I2S_ClearFlag(SPI_TypeDef* SPIx, uint16_t SPI_I2S_FLAG) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
805 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
806 /* Check the parameters */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
807 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
808 assert_param(IS_SPI_I2S_CLEAR_FLAG(SPI_I2S_FLAG)); |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
809 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
810 /* Clear the selected SPI CRC Error (CRCERR) flag */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
811 SPIx->SR = (uint16_t)~SPI_I2S_FLAG; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
812 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
813 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
814 /** |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
815 * @brief Checks whether the specified SPI/I2S interrupt has occurred or not. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
816 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
817 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
818 * - 2 or 3 in I2S mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
819 * @param SPI_I2S_IT: specifies the SPI/I2S interrupt source to check. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
820 * This parameter can be one of the following values: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
821 * @arg SPI_I2S_IT_TXE: Transmit buffer empty interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
822 * @arg SPI_I2S_IT_RXNE: Receive buffer not empty interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
823 * @arg SPI_I2S_IT_OVR: Overrun interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
824 * @arg SPI_IT_MODF: Mode Fault interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
825 * @arg SPI_IT_CRCERR: CRC Error interrupt. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
826 * @arg I2S_IT_UDR: Underrun Error interrupt. |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
827 * @retval The new state of SPI_I2S_IT (SET or RESET). |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
828 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
829 ITStatus SPI_I2S_GetITStatus(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT) |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
830 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
831 ITStatus bitstatus = RESET; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
832 uint16_t itpos = 0, itmask = 0, enablestatus = 0; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
833 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
834 /* Check the parameters */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
835 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
836 assert_param(IS_SPI_I2S_GET_IT(SPI_I2S_IT)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
837 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
838 /* Get the SPI/I2S IT index */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
839 itpos = 0x01 << (SPI_I2S_IT & 0x0F); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
840 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
841 /* Get the SPI/I2S IT mask */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
842 itmask = SPI_I2S_IT >> 4; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
843 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
844 /* Set the IT mask */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
845 itmask = 0x01 << itmask; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
846 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
847 /* Get the SPI_I2S_IT enable bit status */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
848 enablestatus = (SPIx->CR2 & itmask) ; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
849 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
850 /* Check the status of the specified SPI/I2S interrupt */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
851 if (((SPIx->SR & itpos) != (uint16_t)RESET) && enablestatus) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
852 { |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
853 /* SPI_I2S_IT is set */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
854 bitstatus = SET; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
855 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
856 else |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
857 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
858 /* SPI_I2S_IT is reset */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
859 bitstatus = RESET; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
860 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
861 /* Return the SPI_I2S_IT status */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
862 return bitstatus; |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
863 } |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
864 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
865 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
866 * @brief Clears the SPIx CRC Error (CRCERR) interrupt pending bit. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
867 * @param SPIx: where x can be |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
868 * - 1, 2 or 3 in SPI mode |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
869 * @param SPI_I2S_IT: specifies the SPI interrupt pending bit to clear. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
870 * This function clears only CRCERR interrupt pending bit. |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
871 * @note |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
872 * - OVR (OverRun Error) interrupt pending bit is cleared by software |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
873 * sequence: a read operation to SPI_DR register (SPI_I2S_ReceiveData()) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
874 * followed by a read operation to SPI_SR register (SPI_I2S_GetITStatus()). |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
875 * - UDR (UnderRun Error) interrupt pending bit is cleared by a read |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
876 * operation to SPI_SR register (SPI_I2S_GetITStatus()). |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
877 * - MODF (Mode Fault) interrupt pending bit is cleared by software sequence: |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
878 * a read/write operation to SPI_SR register (SPI_I2S_GetITStatus()) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
879 * followed by a write operation to SPI_CR1 register (SPI_Cmd() to enable |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
880 * the SPI). |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
881 * @retval None |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
882 */ |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
883 void SPI_I2S_ClearITPendingBit(SPI_TypeDef* SPIx, uint8_t SPI_I2S_IT) |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
884 { |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
885 uint16_t itpos = 0; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
886 /* Check the parameters */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
887 assert_param(IS_SPI_ALL_PERIPH(SPIx)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
888 assert_param(IS_SPI_I2S_CLEAR_IT(SPI_I2S_IT)); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
889 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
890 /* Get the SPI IT index */ |
c59513fd84fb
Initial commit of STM32 test code.
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parents:
diff
changeset
|
891 itpos = 0x01 << (SPI_I2S_IT & 0x0F); |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
892 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
893 /* Clear the selected SPI CRC Error (CRCERR) interrupt pending bit */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
894 SPIx->SR = (uint16_t)~itpos; |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
895 } |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
896 /** |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
897 * @} |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
898 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
899 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
900 /** |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
901 * @} |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
902 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
903 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
904 /** |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
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|
905 * @} |
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Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
906 */ |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
907 |
c59513fd84fb
Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff
changeset
|
908 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |