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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/MultiProcessor/main.c @ 48:2f336d212c74
Ignore more emacs crap.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Wed, 03 Apr 2013 23:33:47 +1030 |
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1 /** |
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2 ****************************************************************************** |
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3 * @file USART/MultiProcessor/main.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 08-April-2011 |
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7 * @brief Main program body |
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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.h" |
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24 #include "platform_config.h" |
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25 |
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26 /** @addtogroup STM32F10x_StdPeriph_Examples |
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27 * @{ |
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28 */ |
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29 |
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30 /** @addtogroup USART_MultiProcessor |
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31 * @{ |
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32 */ |
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33 |
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34 /* Private typedef -----------------------------------------------------------*/ |
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35 /* Private define ------------------------------------------------------------*/ |
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36 /* Private macro -------------------------------------------------------------*/ |
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37 /* Private variables ---------------------------------------------------------*/ |
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38 USART_InitTypeDef USART_InitStructure; |
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39 |
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40 /* Private function prototypes -----------------------------------------------*/ |
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41 void RCC_Configuration(void); |
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42 void GPIO_Configuration(void); |
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43 void Delay(__IO uint32_t nCount); |
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44 |
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45 /* Private functions ---------------------------------------------------------*/ |
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46 /** |
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47 * @brief Main program |
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48 * @param None |
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49 * @retval None |
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50 */ |
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51 int main(void) |
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52 { |
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53 /*!< At this stage the microcontroller clock setting is already configured, |
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54 this is done through SystemInit() function which is called from startup |
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55 file (startup_stm32f10x_xx.s) before to branch to application main. |
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56 To reconfigure the default setting of SystemInit() function, refer to |
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57 system_stm32f10x.c file |
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58 */ |
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59 |
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60 /* System Clocks Configuration */ |
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61 RCC_Configuration(); |
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62 |
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63 /* Configure the GPIO ports */ |
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64 GPIO_Configuration(); |
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65 |
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66 /* Initialize Leds, Wakeup and Key Buttons mounted on STM3210X-EVAL board */ |
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67 STM_EVAL_LEDInit(LED1); |
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68 STM_EVAL_LEDInit(LED2); |
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69 STM_EVAL_LEDInit(LED3); |
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70 STM_EVAL_LEDInit(LED4); |
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71 STM_EVAL_PBInit(BUTTON_WAKEUP, BUTTON_MODE_EXTI); |
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72 STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_EXTI); |
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73 |
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74 /* USARTy and USARTz configuration -------------------------------------------*/ |
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75 /* USARTy and USARTz configured as follow: |
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76 - BaudRate = 9600 baud |
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77 - Word Length = 9 Bits |
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78 - One Stop Bit |
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79 - No parity |
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80 - Hardware flow control disabled (RTS and CTS signals) |
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81 - Receive and transmit enabled |
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82 */ |
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83 USART_InitStructure.USART_BaudRate = 9600; |
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84 USART_InitStructure.USART_WordLength = USART_WordLength_9b; |
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85 USART_InitStructure.USART_StopBits = USART_StopBits_1; |
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86 USART_InitStructure.USART_Parity = USART_Parity_No; |
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87 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; |
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88 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; |
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89 |
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90 /* Configure USARTy */ |
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91 USART_Init(USARTy, &USART_InitStructure); |
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92 /* Configure USARTz */ |
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93 USART_Init(USARTz, &USART_InitStructure); |
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94 |
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95 /* Enable the USARTy */ |
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96 USART_Cmd(USARTy, ENABLE); |
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97 /* Enable the USARTz */ |
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98 USART_Cmd(USARTz, ENABLE); |
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99 |
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100 /* Set the USARTy Address */ |
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101 USART_SetAddress(USARTy, 0x1); |
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102 /* Set the USARTz Address */ |
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103 USART_SetAddress(USARTz, 0x2); |
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104 |
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105 /* Select the USARTz WakeUp Method */ |
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106 USART_WakeUpConfig(USARTz, USART_WakeUp_AddressMark); |
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107 |
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108 while (1) |
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109 { |
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110 /* Send one byte from USARTy to USARTz */ |
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111 USART_SendData(USARTy, 0x33); |
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112 |
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113 /* Wait while USART1 TXE = 0 */ |
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114 while(USART_GetFlagStatus(USARTz, USART_FLAG_TXE) == RESET) |
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115 { |
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116 } |
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117 |
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118 if(USART_GetFlagStatus(USARTz, USART_FLAG_RXNE) != RESET) |
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119 { |
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120 if(USART_ReceiveData(USARTz) == 0x33) |
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121 { |
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122 STM_EVAL_LEDToggle(LED1); |
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123 Delay(0x5FFFF); |
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124 STM_EVAL_LEDToggle(LED2); |
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125 Delay(0x5FFFF); |
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126 STM_EVAL_LEDToggle(LED3); |
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127 Delay(0x5FFFF); |
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128 STM_EVAL_LEDToggle(LED4); |
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129 Delay(0x5FFFF); |
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130 } |
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131 } |
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132 } |
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133 } |
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134 |
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135 /** |
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136 * @brief Configures the different system clocks. |
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137 * @param None |
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138 * @retval None |
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139 */ |
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140 void RCC_Configuration(void) |
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141 { |
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142 /* Enable GPIO clock */ |
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143 RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | USARTz_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE); |
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144 |
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145 #ifndef USE_STM3210C_EVAL |
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146 /* Enable USARTy Clock */ |
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147 RCC_APB2PeriphClockCmd(USARTy_CLK, ENABLE); |
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148 #else |
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149 /* Enable USARTy Clock */ |
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150 RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE); |
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151 #endif |
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152 /* Enable USARTz Clock */ |
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153 RCC_APB1PeriphClockCmd(USARTz_CLK, ENABLE); |
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154 } |
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155 |
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156 /** |
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157 * @brief Configures the different GPIO ports. |
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158 * @param None |
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159 * @retval None |
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160 */ |
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161 void GPIO_Configuration(void) |
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162 { |
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163 GPIO_InitTypeDef GPIO_InitStructure; |
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164 |
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165 #ifdef USE_STM3210C_EVAL |
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166 /* Enable the USART3 Pins Software Remapping */ |
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167 GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE); |
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168 |
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169 /* Enable the USART2 Pins Software Remapping */ |
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170 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE); |
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171 #elif defined(USE_STM3210B_EVAL) || defined(USE_STM32100B_EVAL) |
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172 /* Enable the USART2 Pins Software Remapping */ |
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173 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE); |
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174 #endif |
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175 |
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176 /* Configure USARTy Rx as input floating */ |
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177 GPIO_InitStructure.GPIO_Pin = USARTy_RxPin; |
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178 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; |
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179 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure); |
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180 |
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181 /* Configure USARTz Rx as input floating */ |
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182 GPIO_InitStructure.GPIO_Pin = USARTz_RxPin; |
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183 GPIO_Init(USARTz_GPIO, &GPIO_InitStructure); |
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184 |
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185 /* Configure USARTy Tx as alternate function push-pull */ |
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186 GPIO_InitStructure.GPIO_Pin = USARTy_TxPin; |
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187 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; |
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188 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; |
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189 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure); |
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190 |
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191 /* Configure USARTz Tx as alternate function push-pull */ |
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192 GPIO_InitStructure.GPIO_Pin = USARTz_TxPin; |
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193 GPIO_Init(USARTz_GPIO, &GPIO_InitStructure); |
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194 } |
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195 |
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196 /** |
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197 * @brief Inserts a delay time. |
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198 * @param nCount: specifies the delay time length. |
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199 * @retval None |
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200 */ |
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201 void Delay(__IO uint32_t nCount) |
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202 { |
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203 /* Decrement nCount value */ |
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204 for(; nCount != 0; nCount--); |
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205 } |
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206 |
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207 #ifdef USE_FULL_ASSERT |
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208 |
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209 /** |
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210 * @brief Reports the name of the source file and the source line number |
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211 * where the assert_param error has occurred. |
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212 * @param file: pointer to the source file name |
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213 * @param line: assert_param error line source number |
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214 * @retval None |
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215 */ |
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216 void assert_failed(uint8_t* file, uint32_t line) |
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217 { |
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218 /* User can add his own implementation to report the file name and line number, |
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219 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ |
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220 |
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221 /* Infinite loop */ |
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222 while (1) |
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223 { |
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224 } |
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225 } |
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226 |
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227 #endif |
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228 |
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229 /** |
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230 * @} |
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231 */ |
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232 |
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233 /** |
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234 * @} |
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235 */ |
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236 |
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237 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |