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9ab116625b
将tab键替换为空格 删除每行末尾无用的空格 # Conflicts: # DemoProc/src/DemoProc.c # GUI/inc/SGUI_Basic.h # GUI/inc/SGUI_Typedef.h # GUI/src/SGUI_Basic.c # GUI/src/SGUI_Curve.c # GUI/src/SGUI_Text.c
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
#include <stdio.h>
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#include "usart_stdio.h"
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#include "usart.h"
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#define STDIO_USARTx USART1
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#define STDIO_USARTx_CLK_FUN RCC_APB2PeriphClockCmd
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#define STDIO_USARTx_RCC RCC_APB2Periph_USART1
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#define STDIO_USARTx_PORT GPIOA
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#define STDIO_USARTx_TXPin GPIO_Pin_9
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#define STDIO_USARTx_RXPin GPIO_Pin_10
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#pragma import(__use_no_semihosting)
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FILE __stdout;
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FILE __stdin;
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static void Stdio_ConfigGPIO(void)
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{
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// Initialize data structure.
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GPIO_InitTypeDef GPIO_InitStructure;
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// Enable RCC.
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STDIO_USARTx_CLK_FUN(RCC_APB2Periph_GPIOA, ENABLE);
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// Config TX GPIO.
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GPIO_InitStructure.GPIO_Pin = STDIO_USARTx_TXPin;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
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GPIO_Init(STDIO_USARTx_PORT, &GPIO_InitStructure);
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// Config RX GPIO.
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GPIO_InitStructure.GPIO_Pin = STDIO_USARTx_RXPin;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_Init(STDIO_USARTx_PORT, &GPIO_InitStructure);
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}
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void _sys_exit(int return_code)
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{
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while(1)
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{
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/* Blank loop */
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}
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}
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int ferror(FILE *f)
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{
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/* Your implementation of ferror */
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return EOF;
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}
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void _ttywrch(int c)
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{
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/* Place your implementation of fputc here */
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/* e.g. write a character to the USART */
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USART_SendData(STDIO_USARTx, (uint8_t) c);
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/* Loop until the end of transmission */
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while (USART_GetFlagStatus(STDIO_USARTx, USART_FLAG_TC) == RESET)
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{
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/* Blank loop */
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}
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}
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/*******************************************************************************
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* Function Name : int fputc(int ch, FILE *f)
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* Description : Retargets the C library printf function to the USART.printf
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* Input : None
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* Output : None
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* Return : None
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*******************************************************************************/
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int fputc(int ch, FILE *f)
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{
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while(USART_GetFlagStatus(STDIO_USARTx,USART_FLAG_TC)==RESET)
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{
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/* Blank loop */
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}
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USART_SendData(STDIO_USARTx,(uint8_t)ch);
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return ch;
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}
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/*******************************************************************************
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* Function Name : int fgetc(FILE *f)
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* Description : Retargets the C library printf function to the USART.fgetc
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* Input : None
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* Output : None
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* Return : Read char
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*******************************************************************************/
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int fgetc(FILE *f)
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{
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uint16_t uiRtnValue;
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/* Loop until received a char */
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while(!(USART_GetFlagStatus(STDIO_USARTx, USART_FLAG_RXNE) == SET))
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{
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/* Blank loop */
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}
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uiRtnValue = USART_ReceiveData(STDIO_USARTx);
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/* Read a character from the USART and RETURN */
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return (uiRtnValue);
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}
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/*******************************************************************************
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* Function Name : USART_Stdio_Initialize
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* Description : Initialize usart port for stdio functions.
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* Input : Baudrate
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* Output : None
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* Return : None
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*******************************************************************************/
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void USART_Stdio_Initialize(uint32_t Baudrate)
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{
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/* Configure USART1 */
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STDIO_USARTx_CLK_FUN(STDIO_USARTx_RCC, ENABLE);
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USART_Initialize(STDIO_USARTx, Baudrate);
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/* Configure USART1 GPIO */
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Stdio_ConfigGPIO();
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}
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