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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Utilities/STM32_EVAL/Common/stm32_eval_i2c_tsensor.h @ 55:b21db2b47a27
Enable DMA mode by initing DMA channel and enabling IRQ handler.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Sun, 07 Apr 2013 22:34:05 +0930 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file stm32_eval_i2c_tsensor.h |
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4 * @author MCD Application Team |
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5 * @version V4.5.0 |
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6 * @date 07-March-2011 |
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7 * @brief This file contains all the functions prototypes for the |
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8 * stm32_eval_i2c_tsensor firmware driver. |
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9 ****************************************************************************** |
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10 * @attention |
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11 * |
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12 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
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13 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
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14 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
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15 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
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16 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
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17 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
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18 * |
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19 * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
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20 ****************************************************************************** |
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21 */ |
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22 |
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23 /* Define to prevent recursive inclusion -------------------------------------*/ |
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24 #ifndef __STM32_EVAL_I2C_TSENSOR_H |
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25 #define __STM32_EVAL_I2C_TSENSOR_H |
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26 |
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27 #ifdef __cplusplus |
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28 extern "C" { |
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29 #endif |
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30 |
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31 /* Includes ------------------------------------------------------------------*/ |
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32 #include "stm32_eval.h" |
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33 |
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34 /** @addtogroup Utilities |
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35 * @{ |
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36 */ |
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37 |
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38 /** @addtogroup STM32_EVAL |
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39 * @{ |
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40 */ |
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41 |
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42 /** @addtogroup Common |
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43 * @{ |
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44 */ |
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45 |
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46 /** @addtogroup STM32_EVAL_I2C_TSENSOR |
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47 * @{ |
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48 */ |
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49 |
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50 /** @defgroup STM32_EVAL_I2C_TSENSOR_Exported_Types |
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51 * @{ |
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52 */ |
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53 |
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54 /** |
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55 * @brief IOE DMA Direction |
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56 */ |
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57 typedef enum |
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58 { |
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59 LM75_DMA_TX = 0, |
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60 LM75_DMA_RX = 1 |
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61 }LM75_DMADirection_TypeDef; |
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62 |
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63 /** |
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64 * @brief TSENSOR Status |
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65 */ |
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66 typedef enum |
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67 { |
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68 LM75_OK = 0, |
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69 LM75_FAIL |
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70 }LM75_Status_TypDef; |
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71 |
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72 /** |
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73 * @} |
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74 */ |
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75 |
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76 /** @defgroup STM32_EVAL_I2C_TSENSOR_Exported_Constants |
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77 * @{ |
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78 */ |
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79 |
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80 /* Uncomment the following line to use Timeout_User_Callback LM75_TimeoutUserCallback(). |
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81 If This Callback is enabled, it should be implemented by user in main function . |
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82 LM75_TimeoutUserCallback() function is called whenever a timeout condition |
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83 occure during communication (waiting on an event that doesn't occur, bus |
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84 errors, busy devices ...). */ |
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85 /* #define USE_TIMEOUT_USER_CALLBACK */ |
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86 |
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87 /* Maximum Timeout values for flags and events waiting loops. These timeouts are |
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88 not based on accurate values, they just guarantee that the application will |
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89 not remain stuck if the I2C communication is corrupted. |
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90 You may modify these timeout values depending on CPU frequency and application |
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91 conditions (interrupts routines ...). */ |
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92 #define LM75_FLAG_TIMEOUT ((uint32_t)0x1000) |
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93 #define LM75_LONG_TIMEOUT ((uint32_t)(10 * LM75_FLAG_TIMEOUT)) |
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94 |
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95 |
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96 /** |
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97 * @brief Block Size |
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98 */ |
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99 #define LM75_REG_TEMP 0x00 /*!< Temperature Register of LM75 */ |
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100 #define LM75_REG_CONF 0x01 /*!< Configuration Register of LM75 */ |
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101 #define LM75_REG_THYS 0x02 /*!< Temperature Register of LM75 */ |
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102 #define LM75_REG_TOS 0x03 /*!< Over-temp Shutdown threshold Register of LM75 */ |
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103 #define I2C_TIMEOUT ((uint32_t)0x3FFFF) /*!< I2C Time out */ |
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104 #define LM75_ADDR 0x90 /*!< LM75 address */ |
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105 #define LM75_I2C_SPEED 100000 /*!< I2C Speed */ |
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106 |
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107 |
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108 |
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109 /** |
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110 * @} |
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111 */ |
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112 |
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113 /** @defgroup STM32_EVAL_I2C_TSENSOR_Exported_Macros |
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114 * @{ |
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115 */ |
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116 /** |
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117 * @} |
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118 */ |
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119 |
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120 /** @defgroup STM32_EVAL_I2C_TSENSOR_Exported_Functions |
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121 * @{ |
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122 */ |
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123 void LM75_DeInit(void); |
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124 void LM75_Init(void); |
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125 ErrorStatus LM75_GetStatus(void); |
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126 uint16_t LM75_ReadTemp(void); |
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127 uint16_t LM75_ReadReg(uint8_t RegName); |
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128 uint8_t LM75_WriteReg(uint8_t RegName, uint16_t RegValue); |
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129 uint8_t LM75_ReadConfReg(void); |
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130 uint8_t LM75_WriteConfReg(uint8_t RegValue); |
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131 uint8_t LM75_ShutDown(FunctionalState NewState); |
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132 |
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133 /** |
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134 * @brief Timeout user callback function. This function is called when a timeout |
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135 * condition occurs during communication with IO Expander. Only protoype |
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136 * of this function is decalred in IO Expander driver. Its implementation |
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137 * may be done into user application. This function may typically stop |
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138 * current operations and reset the I2C peripheral and IO Expander. |
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139 * To enable this function use uncomment the define USE_TIMEOUT_USER_CALLBACK |
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140 * at the top of this file. |
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141 */ |
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142 #ifdef USE_TIMEOUT_USER_CALLBACK |
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143 uint8_t LM75_TIMEOUT_UserCallback(void); |
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144 #else |
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145 #define LM75_TIMEOUT_UserCallback() LM75_FAIL |
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146 #endif /* USE_TIMEOUT_USER_CALLBACK */ |
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147 |
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148 #ifdef __cplusplus |
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149 } |
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150 #endif |
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151 |
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152 #endif /* __STM32_EVAL_I2C_TSENSOR_H */ |
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153 /** |
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154 * @} |
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155 */ |
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156 |
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157 /** |
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158 * @} |
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159 */ |
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160 |
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161 /** |
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162 * @} |
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163 */ |
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164 |
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165 /** |
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166 * @} |
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167 */ |
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168 |
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169 /** |
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170 * @} |
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171 */ |
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172 |
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173 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |