INTERRUPT_HANDLER(USART1_RX_TIM5_CC_IRQHandler, 28){ uint8_t temp = 0;// 读1字节，存入读缓区 temp = USART_ReceiveData8(USART1);read_buffer[read_idx++] = temp;// 等待全部读完后（如果有设定读长度的话）关读中断 // 这里根据具体业务，