stm32快速學習4——串口發送字符

設定發送腳功能

串口設置，使能

#include"stm32f10x.h"

voidRCC_Configuration(void);

voidGPIO_Configuration(void);

voidUSART_Configuration(void);

unsignedcharstr[]="A";

intmain(void)

{

RCC_Configuration();

GPIO_Configuration();

USART_Configuration();

USART_SendData(USART1,str[0]);

while(1);

}

voidRCC_Configuration(void)

{

RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 |RCC_APB2Periph_GPIOA,ENABLE);

}

voidGPIO_Configuration(void)

{

GPIO_InitTypeDefGPIO_InitStructure;

/*只設定了發送*/

GPIO_InitStructure.GPIO_Pin=GPIO_Pin_9;

GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;

GPIO_Init(GPIOA,&GPIO_InitStructure);

}

voidUSART_Configuration(void)

{

USART_InitTypeDefUSART_InitStructure;

USART_InitStructure.USART_BaudRate=115200;

USART_InitStructure.USART_WordLength=USART_WordLength_8b;

USART_InitStructure.USART_StopBits=USART_StopBits_1;

USART_InitStructure.USART_Parity=USART_Parity_No;

USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;

USART_InitStructure.USART_Mode=USART_Mode_Tx;/*只設定了發送*/

USART_Init(USART1,&USART_InitStructure);

USART_Cmd(USART1,ENABLE);

}