27,382
社区成员
发帖
与我相关
我的任务
分享
#ifdef __GNUC__
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif
PUTCHAR_PROTOTYPE
{
USART_SendData8(USART1,(unsigned char)ch); //发送替换即可
Loop until the end of transmission
while (USART_GetFlagStatus(USART1,USART_FLAG_TXE) == RESET)
{}
return ch;
}