stm32在调试时可以使用printf通过串口输出当前信息吗

假装写过类似的博客，这回从新进行一下总结~

#include "stdio.h"
#include "stm32f10x_usart.h"
#include "stm32f10x.h"
int fputc(int ch, FILE *f)
{
USART_SendData(USART1, (u8) ch);

而（USART_GetFlagStatus（USART1，USART_FLAG_TXE）==重置）
{
}

返回 ch;
}
void USART1_Configration()
{
USART_InitTypeDef USART_InitStructure; GPIO_InitTypeDef GPIO_InitStructure;

RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1，启用）；
//USART1_TX
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);

//USART1_RX
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，启用）；

}
int main(void)
{

系统初始化（）； //系统时钟配置

USART1_Configration();
printf("开始DMA传输！rn");


而 (1)
{

}
}






小case~~~~