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annotate libs/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/USART/Printf/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/Printf/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 "stm32_eval.h"
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25 #include <stdio.h>
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26
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27 /** @addtogroup STM32F10x_StdPeriph_Examples
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28 * @{
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29 */
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30
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31 /** @addtogroup USART_Printf
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32 * @{
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33 */
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34
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35 /* Private typedef -----------------------------------------------------------*/
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36 /* Private define ------------------------------------------------------------*/
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37 /* Private macro -------------------------------------------------------------*/
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38 /* Private variables ---------------------------------------------------------*/
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39 USART_InitTypeDef USART_InitStructure;
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40
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41 /* Private function prototypes -----------------------------------------------*/
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42
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43 #ifdef __GNUC__
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44 /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
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45 set to 'Yes') calls __io_putchar() */
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46 #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
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47 #else
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48 #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
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49 #endif /* __GNUC__ */
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50
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51 /* Private functions ---------------------------------------------------------*/
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52
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53 /**
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54 * @brief Main program
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55 * @param None
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56 * @retval None
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57 */
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58 int main(void)
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59 {
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60 /*!< At this stage the microcontroller clock setting is already configured,
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61 this is done through SystemInit() function which is called from startup
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62 file (startup_stm32f10x_xx.s) before to branch to application main.
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63 To reconfigure the default setting of SystemInit() function, refer to
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64 system_stm32f10x.c file
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65 */
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66
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67 /* USARTx configured as follow:
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68 - BaudRate = 115200 baud
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69 - Word Length = 8 Bits
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70 - One Stop Bit
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71 - No parity
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72 - Hardware flow control disabled (RTS and CTS signals)
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73 - Receive and transmit enabled
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74 */
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75 USART_InitStructure.USART_BaudRate = 115200;
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76 USART_InitStructure.USART_WordLength = USART_WordLength_8b;
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77 USART_InitStructure.USART_StopBits = USART_StopBits_1;
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78 USART_InitStructure.USART_Parity = USART_Parity_No;
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79 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
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80 USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
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81
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82 STM_EVAL_COMInit(COM1, &USART_InitStructure);
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83
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84 /* Output a message on Hyperterminal using printf function */
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85 printf("\n\rUSART Printf Example: retarget the C library printf function to the USART\n\r");
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86
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87 while (1)
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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 * @brief Retargets the C library printf function to the USART.
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94 * @param None
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95 * @retval None
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96 */
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97 PUTCHAR_PROTOTYPE
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98 {
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99 /* Place your implementation of fputc here */
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100 /* e.g. write a character to the USART */
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101 USART_SendData(EVAL_COM1, (uint8_t) ch);
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102
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103 /* Loop until the end of transmission */
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104 while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
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105 {}
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106
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107 return ch;
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108 }
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109
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110 #ifdef USE_FULL_ASSERT
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111
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112 /**
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113 * @brief Reports the name of the source file and the source line number
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114 * where the assert_param error has occurred.
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115 * @param file: pointer to the source file name
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116 * @param line: assert_param error line source number
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117 * @retval None
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118 */
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119 void assert_failed(uint8_t* file, uint32_t line)
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120 {
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121 /* User can add his own implementation to report the file name and line number,
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122 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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123
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124 /* Infinite loop */
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125 while (1)
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126 {
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127 }
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128 }
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129
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130 #endif
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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 /**
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137 * @}
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138 */
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139
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140 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/