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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/IrDA/Receive/main.c @ 8:58d76cf522ff

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Split out code into separate files.
author Daniel O'Connor <darius@dons.net.au>
date Sat, 04 Feb 2012 13:29:31 +1030
parents c59513fd84fb
children
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1 /**
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2 ******************************************************************************
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3 * @file USART/IrDA/Receive/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>&copy; 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_IrDA_Receive
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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 JOYState_TypeDef ReceivedData = JOY_NONE;
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40
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41 /* Private function prototypes -----------------------------------------------*/
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42 void RCC_Configuration(void);
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43 void GPIO_Configuration(void);
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44
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45 /* Private functions ---------------------------------------------------------*/
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46
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47 /**
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48 * @brief Main program
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49 * @param None
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50 * @retval None
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51 */
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52 int main(void)
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53 {
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54 /*!< At this stage the microcontroller clock setting is already configured,
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55 this is done through SystemInit() function which is called from startup
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56 file (startup_stm32f10x_xx.s) before to branch to application main.
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57 To reconfigure the default setting of SystemInit() function, refer to
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58 system_stm32f10x.c file
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59 */
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60
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61 /* System Clocks Configuration */
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62 RCC_Configuration();
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63
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64 /* Configure the GPIO ports */
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65 GPIO_Configuration();
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66
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67 /* Initialize Leds mounted on STM3210X-EVAL board */
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68 STM_EVAL_LEDInit(LED1);
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69 STM_EVAL_LEDInit(LED2);
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70 STM_EVAL_LEDInit(LED3);
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71 STM_EVAL_LEDInit(LED4);
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72
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73 /* USARTy configuration ------------------------------------------------------*/
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74 /* USARTy configured as follow:
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75 - BaudRate = 115200 baud
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76 - Word Length = 8 Bits
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77 - One Stop Bit
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78 - No parity
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79 - Hardware flow control disabled (RTS and CTS signals)
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80 - Receive and transmit enabled
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81 */
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82 USART_InitStructure.USART_BaudRate = 115200;
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83 USART_InitStructure.USART_WordLength = USART_WordLength_8b;
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84 USART_InitStructure.USART_StopBits = USART_StopBits_1;
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85 USART_InitStructure.USART_Parity = USART_Parity_No ;
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86 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
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87 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
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88
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89 /* Configure the USARTy */
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90 USART_Init(USARTy, &USART_InitStructure);
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91 /* Enable the USARTy */
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92 USART_Cmd(USARTy, ENABLE);
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93
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94 /* Set the USARTy prescaler */
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95 USART_SetPrescaler(USARTy, 0x1);
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96 /* Configure the USARTy IrDA mode */
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97 USART_IrDAConfig(USARTy, USART_IrDAMode_Normal);
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98
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99 /* Enable the USARTy IrDA mode */
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100 USART_IrDACmd(USARTy, ENABLE);
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101
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102 while (1)
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103 {
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104 /* Wait until a byte is received */
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105 while(USART_GetFlagStatus(USARTy, USART_FLAG_RXNE) == RESET)
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106 {
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107 }
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108 /* Read the received byte */
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109 ReceivedData = (JOYState_TypeDef)USART_ReceiveData(USARTy);
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110
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111 switch(ReceivedData)
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112 {
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113 case JOY_UP:
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114 STM_EVAL_LEDOn(LED1);
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115 STM_EVAL_LEDOff(LED2);
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116 STM_EVAL_LEDOff(LED3);
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117 STM_EVAL_LEDOff(LED4);
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118 break;
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119 case JOY_DOWN:
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120 STM_EVAL_LEDOn(LED2);
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121 STM_EVAL_LEDOff(LED1);
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122 STM_EVAL_LEDOff(LED3);
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123 STM_EVAL_LEDOff(LED4);
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124 break;
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125 case JOY_LEFT:
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126 STM_EVAL_LEDOn(LED3);
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127 STM_EVAL_LEDOff(LED1);
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128 STM_EVAL_LEDOff(LED2);
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129 STM_EVAL_LEDOff(LED4);
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130 break;
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131 case JOY_RIGHT:
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132 STM_EVAL_LEDOn(LED4);
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133 STM_EVAL_LEDOff(LED1);
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134 STM_EVAL_LEDOff(LED2);
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135 STM_EVAL_LEDOff(LED3);
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136 break;
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137 case JOY_SEL:
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138 STM_EVAL_LEDOn(LED1);
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139 STM_EVAL_LEDOn(LED2);
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140 STM_EVAL_LEDOn(LED3);
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141 STM_EVAL_LEDOn(LED4);
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142 break;
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143 case JOY_NONE:
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144 break;
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145 default:
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146 break;
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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 /**
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152 * @brief Configures the different system clocks.
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153 * @param None
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154 * @retval None
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155 */
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156 void RCC_Configuration(void)
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157 {
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158 /* Enable GPIO clock */
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159 RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
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160
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161 /* Enable USARTy clocks */
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162 RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE);
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163 }
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164
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165 /**
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166 * @brief Configures the different GPIO ports.
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167 * @param None
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168 * @retval None
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169 */
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170 void GPIO_Configuration(void)
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171 {
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172 GPIO_InitTypeDef GPIO_InitStructure;
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173
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174 #ifndef USE_STM3210C_EVAL
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175 /* Enable the USART3 Pins Partial Software Remapping */
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176 GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
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177 #else
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178 /* Enable the USART2 Pins Software Remapping */
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179 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
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180 #endif
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181
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182 /* Configure USARTy Tx as alternate function push-pull */
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183 GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
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184 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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185 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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186 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
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187
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188 /* Configure USARTy Rx as input floating */
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189 GPIO_InitStructure.GPIO_Pin = USARTy_RxPin;
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190 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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191 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
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192 }
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193
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194 #ifdef USE_FULL_ASSERT
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195
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196 /**
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197 * @brief Reports the name of the source file and the source line number
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198 * where the assert_param error has occurred.
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199 * @param file: pointer to the source file name
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200 * @param line: assert_param error line source number
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201 * @retval None
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202 */
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203 void assert_failed(uint8_t* file, uint32_t line)
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204 {
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205 /* User can add his own implementation to report the file name and line number,
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206 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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207
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208 /* Infinite loop */
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209 while (1)
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210 {
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211 }
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212 }
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213
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214 #endif
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215
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216 /**
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217 * @}
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218 */
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219
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220 /**
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221 * @}
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222 */
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223
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224 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/