int fputc(int c, FILE* stream)
{
uint8_t ch[1] = {c};
HAL_UART_Transmit(&huart1, ch, 1, 0xFFFF);
return c;
}
int fgetc(FILE* stream)
{
uint8_t ch[1];
HAL_UART_Receive(&huart1, ch, 1, 0xFFFF);
return ch[0];
}
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原文链接：https://blog.csdn.net/NBNB66666/article/details/136415786
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