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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/IrDA/Transmit/main.c @ 0:c59513fd84fb

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Initial commit of STM32 test code.
author Daniel O'Connor <darius@dons.net.au>
date Mon, 03 Oct 2011 21:19:15 +1030
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1 /**
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2 ******************************************************************************
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3 * @file USART/IrDA/Transmit/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_Transmit
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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 MyKey = 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 JOYState_TypeDef ReadKey(void);
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45
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46 /* Private functions ---------------------------------------------------------*/
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47
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48 /**
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49 * @brief Main program
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50 * @param None
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51 * @retval None
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52 */
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53 int main(void)
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54 {
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55 /*!< At this stage the microcontroller clock setting is already configured,
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56 this is done through SystemInit() function which is called from startup
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57 file (startup_stm32f10x_xx.s) before to branch to application main.
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58 To reconfigure the default setting of SystemInit() function, refer to
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59 system_stm32f10x.c file
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60 */
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61
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62 /* System Clocks Configuration */
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63 RCC_Configuration();
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64
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65 /* Configure the GPIO ports */
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66 GPIO_Configuration();
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67
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68 #ifndef USE_STM3210C_EVAL
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69 /* Initialize JoyStick Button mounted on STM3210X-EVAL board */
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70 STM_EVAL_PBInit(BUTTON_UP, BUTTON_MODE_GPIO);
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71 STM_EVAL_PBInit(BUTTON_DOWN, BUTTON_MODE_GPIO);
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72 STM_EVAL_PBInit(BUTTON_LEFT, BUTTON_MODE_GPIO);
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73 STM_EVAL_PBInit(BUTTON_RIGHT, BUTTON_MODE_GPIO);
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74 STM_EVAL_PBInit(BUTTON_SEL, BUTTON_MODE_GPIO);
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75 #else
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76 /* Configure the IO Expander */
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77 if (IOE_Config())
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78 {
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79 /* IO Expander config error */
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80 while(1);
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81 }
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82
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83 #endif
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84
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85 /* USARTy configuration ------------------------------------------------------*/
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86 /* USARTy configured as follow:
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87 - BaudRate = 115200 baud
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88 - Word Length = 8 Bits
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89 - One Stop Bit
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90 - No parity
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91 - Hardware flow control disabled (RTS and CTS signals)
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92 - Receive and transmit enabled
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93 */
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94 USART_InitStructure.USART_BaudRate = 115200;
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95 USART_InitStructure.USART_WordLength = USART_WordLength_8b;
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96 USART_InitStructure.USART_StopBits = USART_StopBits_1;
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97 USART_InitStructure.USART_Parity = USART_Parity_No ;
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98 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
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99 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
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100
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101 /* Configure the USARTy */
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102 USART_Init(USARTy, &USART_InitStructure);
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103 /* Enable the USARTy */
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104 USART_Cmd(USARTy, ENABLE);
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105 /* Set the USARTy prescaler */
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106 USART_SetPrescaler(USARTy, 0x1);
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107 /* Configure the USARTy IrDA mode */
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108 USART_IrDAConfig(USARTy, USART_IrDAMode_Normal);
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109
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110 /* Enable the USARTy IrDA mode */
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111 USART_IrDACmd(USARTy, ENABLE);
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112
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113
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114 while (1)
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115 {
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116 /* Read Key */
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117 MyKey = ReadKey();
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118
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119 switch(MyKey)
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120 {
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121 case JOY_UP:
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122 USART_SendData(USARTy, JOY_UP);
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123 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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124 {
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125 }
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126 break;
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127 case JOY_DOWN:
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128 USART_SendData(USARTy, JOY_DOWN);
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129 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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130 {
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131 }
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132 break;
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133 case JOY_LEFT:
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134 USART_SendData(USARTy, JOY_LEFT);
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135 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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136 {
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137 }
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138 break;
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139 case JOY_RIGHT:
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140 USART_SendData(USARTy, JOY_RIGHT);
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141 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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142 {
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143 }
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144 break;
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145 case JOY_SEL:
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146 USART_SendData(USARTy, JOY_SEL);
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147 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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148 {
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149 }
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150 break;
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151 case JOY_NONE:
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152 USART_SendData(USARTy, JOY_NONE);
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153 while(USART_GetFlagStatus(USARTy, USART_FLAG_TXE) == RESET)
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154 {
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155 }
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156 break;
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157 default:
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158 break;
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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 * @brief Configures the different system clocks.
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165 * @param None
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166 * @retval None
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167 */
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168 void RCC_Configuration(void)
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169 {
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170 /* Enable GPIO clock */
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171 RCC_APB2PeriphClockCmd(USARTy_GPIO_CLK | RCC_APB2Periph_AFIO, ENABLE);
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172
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173 /* Enable USARTy clocks */
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174 RCC_APB1PeriphClockCmd(USARTy_CLK, ENABLE);
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175 }
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176
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177 /**
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178 * @brief Configures the different GPIO ports.
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179 * @param None
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180 * @retval None
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181 */
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182 void GPIO_Configuration(void)
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183 {
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184 GPIO_InitTypeDef GPIO_InitStructure;
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185
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186 #ifndef USE_STM3210C_EVAL
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187 /* Enable the USART3 Pins Partial Software Remapping */
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188 GPIO_PinRemapConfig(GPIO_PartialRemap_USART3, ENABLE);
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189 #else
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190 /* Enable the USART2 Pins Software Remapping */
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191 GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
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192 #endif
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193
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194 /* Configure USARTy Tx as alternate function push-pull */
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195 GPIO_InitStructure.GPIO_Pin = USARTy_TxPin;
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196 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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197 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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198 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
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199
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diff changeset
200 /* Configure USARTy Rx as input floating */
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201 GPIO_InitStructure.GPIO_Pin = USARTy_RxPin;
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diff changeset
202 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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203 GPIO_Init(USARTy_GPIO, &GPIO_InitStructure);
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204 }
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205
c59513fd84fb Initial commit of STM32 test code.
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206 /**
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207 * @brief Reads key from board.
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208 * @param None
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209 * @retval Return JOY_RIGHT, JOY_LEFT, JOY_SEL, JOY_UP, JOY_DOWN or JOY_NONE
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210 */
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211 JOYState_TypeDef ReadKey(void)
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212 {
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213 #ifndef USE_STM3210C_EVAL
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214 /* "right" key is pressed */
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215 if(!STM_EVAL_PBGetState(BUTTON_RIGHT))
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216 {
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217 while(STM_EVAL_PBGetState(BUTTON_RIGHT) == Bit_RESET);
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218 return JOY_RIGHT;
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219 }
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220 /* "left" key is pressed */
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diff changeset
221 if(!STM_EVAL_PBGetState(BUTTON_LEFT))
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parents:
diff changeset
222 {
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223 while(STM_EVAL_PBGetState(BUTTON_LEFT) == Bit_RESET);
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224 return JOY_LEFT;
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225 }
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diff changeset
226 /* "up" key is pressed */
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diff changeset
227 if(!STM_EVAL_PBGetState(BUTTON_UP))
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parents:
diff changeset
228 {
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229 while(STM_EVAL_PBGetState(BUTTON_UP) == Bit_RESET);
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230 return JOY_UP;
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parents:
diff changeset
231 }
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
232 /* "down" key is pressed */
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Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
233 if(!STM_EVAL_PBGetState(BUTTON_DOWN))
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Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
234 {
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diff changeset
235 while(STM_EVAL_PBGetState(BUTTON_DOWN) == Bit_RESET);
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diff changeset
236 return JOY_DOWN;
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parents:
diff changeset
237 }
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
238 /* "sel" key is pressed */
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diff changeset
239 if(!STM_EVAL_PBGetState(BUTTON_SEL))
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
240 {
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
241 while(STM_EVAL_PBGetState(BUTTON_SEL) == Bit_RESET);
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diff changeset
242 return JOY_SEL;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
243 }
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
244 /* No key is pressed */
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diff changeset
245 else
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
246 {
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
247 return JOY_NONE;
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
248 }
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
249 #else
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diff changeset
250 return IOE_JoyStickGetState();
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
251 #endif
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
252 }
c59513fd84fb Initial commit of STM32 test code.
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253
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
254 #ifdef USE_FULL_ASSERT
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255
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
256 /**
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diff changeset
257 * @brief Reports the name of the source file and the source line number
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
258 * where the assert_param error has occurred.
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diff changeset
259 * @param file: pointer to the source file name
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260 * @param line: assert_param error line source number
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diff changeset
261 * @retval None
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
262 */
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diff changeset
263 void assert_failed(uint8_t* file, uint32_t line)
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parents:
diff changeset
264 {
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
265 /* User can add his own implementation to report the file name and line number,
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
266 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
267
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
268 /* Infinite loop */
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parents:
diff changeset
269 while (1)
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parents:
diff changeset
270 {
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
271 }
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
272 }
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
273
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
274 #endif
c59513fd84fb Initial commit of STM32 test code.
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275
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
276 /**
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
277 * @}
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
278 */
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parents:
diff changeset
279
c59513fd84fb Initial commit of STM32 test code.
Daniel O'Connor <darius@dons.net.au>
parents:
diff changeset
280 /**
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
281 * @}
c59513fd84fb Initial commit of STM32 test code.
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parents:
diff changeset
282 */
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283
c59513fd84fb Initial commit of STM32 test code.
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diff changeset
284 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/