#include "stm32f10x.h"
#include "stm32f10x_usart.h"
#include"stdio.h"
void Delay(u32 count)
{
u32 i=0;
for(;i<count;i++);
}
int fputc(int ch,FILE*f)
{
USART_SendData(USART1, ch);
Delay(300000);
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)==RESET);
return(ch);
}
int main(void)
{
u8 data='A';
u8 i;
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1, ENABLE);
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 9600;
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 | USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
for(i=0;i<25;i++)
{
USART_SendData(USART1, data);
data++;
Delay(300000);
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)==RESET);
}
printf("wewwew");
} |