串口通信程序示例
- #include "stm32f10x.h" // Device header
- #include <stdio.h>
- #include <stdarg.h>
- void Serial_Init(void)
- {
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
-
- GPIO_InitTypeDef GPIO_InitStructure;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_Init(GPIOA, &GPIO_InitStructure);
-
- USART_InitTypeDef USART_InitStructure;
- USART_InitStructure.USART_BaudRate = 9600;//波特率
- USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无流控
- USART_InitStructure.USART_Mode = USART_Mode_Tx;//发送模式
- USART_InitStructure.USART_Parity = USART_Parity_No;//无校验位
- USART_InitStructure.USART_StopBits = USART_StopBits_1;//停止位一位
- USART_InitStructure.USART_WordLength = USART_WordLength_8b;//8位1字节
- USART_Init(USART1, &USART_InitStructure);
-
- USART_Cmd(USART1, ENABLE);//开启串口
- }
- void Serial_SendByte(uint8_t Byte)//发送字符
- {
- USART_SendData(USART1, Byte);
- while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
- }
- void Serial_SendArray(uint8_t *Array, uint16_t Length)//发送数组
- {
- uint16_t i;
- for (i = 0; i < Length; i ++)
- {
- Serial_SendByte(Array[i]);
- }
- }
- void Serial_SendString(char *String)//发送字符串
- {
- uint8_t i;
- for (i = 0; String[i] != '\0'; i ++)
- {
- Serial_SendByte(String[i]);
- }
- }
- uint32_t Serial_Pow(uint32_t X, uint32_t Y)
- {
- uint32_t Result = 1;
- while (Y --)
- {
- Result *= X;
- }
- return Result;
- }
- void Serial_SendNumber(uint32_t Number, uint8_t Length)//发送数字
- {
- uint8_t i;
- for (i = 0; i < Length; i ++)
- {
- Serial_SendByte(Number / Serial_Pow(10, Length - i - 1) % 10 + '0');
- }
- }
- int fputc(int ch, FILE *f)//重定向printf
- {
- Serial_SendByte(ch);
- return ch;
- }
- void Serial_Printf(char *format, ...)//重定向printf多串口使用
- {
- char String[100];
- va_list arg;
- va_start(arg, format);
- vsprintf(String, format, arg);
- va_end(arg);
- Serial_SendString(String);
- }
| 
楼主
