STM32 HAL库学习系列第13篇---串口重定向配置--printf

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发送函数重定向之后就可以使用输入输出函数

/*************************************************
  * 函数功能: 重定向c库函数printf到DEBUG_USARTx
  * 输入参数: 无
  * 返 回 值: 无
  * 说    明：无
  */
int fputc(int ch, FILE *f)
{
   
  HAL_UART_Transmit(&huart1, (uint8_t *)


    
        
        
        
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