不得不吐槽下GD的固件库

只看该作者 · 2017-11-16 08:48

2.0库和3.0库不能通用互换不说，还没说明文档，且是一库难求，而且库中的例程是漏洞百出，
在GD的GD32F1x0_Firmware_Library_V3.0.0库中有一个Receivertimeout串口接收超时的例程，看看里面的程序是如何写的
/*!
\brief    main function
\param[in]  none
\param[out] none
\retval    none
*/
int main(void)
{
uint32_t i=0, j=0;
nvic_config();
gd_eval_COMinit(EVAL_COM1);
printf("a usart receive timeout test example!");

while (1){
      if(0 == rxcount){
         /* enable the USART receive interrupt */
          usart_interrupt_enable( EVAL_COM1, USART_INT_RBNEIE);
      }else{
         /* enable the USART receive timeout and configure the time of timeout */
         usart_receiver_timeout_enable(EVAL_COM1);
         usart_receiver_timeout_config(EVAL_COM1, 115200*3);

         while(RESET == usart_flag_get(EVAL_COM1, USART_STAT_RTF));

         for(i=0; i<rxcount; i++){
            txbuffer=rxbuffer[j++];
         }
         /* disable the USART receive interrupt and enable the USART transmit interrupt */
         usart_interrupt_disable(EVAL_COM1 , USART_INT_RBNEIE);
         usart_interrupt_enable(EVAL_COM1, USART_INT_TBEIE);
         while(txcount < rxcount);
         usart_flag_clear(EVAL_COM1, USART_STAT_RTF);
         txcount=0;
         rxcount=0;
         i=0;
         j=0;
      }
}
}

在看看gd32f1x0_usart.c中对于串口中断的定义
/*!
\brief    enable usart interrupt
\param[in]  usart_periph: USARTx(x=0)
\param[in]  inttype:    interrupt type
   \arg       USART_INT_IDLEIE: idle interrupt
   \arg       USART_INT_RBNEIE: read data buffer not empty interrupt and
                                 overrun error interrupt enable interrupt
   \arg       USART_INT_TCIE: transmission complete interrupt
   \arg       USART_INT_TBEIE:  transmit data register empty interrupt
   \arg       USART_INT_PERRIE: parity error interrupt
   \arg       USART_INT_AMIE: address match interrupt
   \arg       USART_INT_RTIE: receiver timeout interrupt
   \arg       USART_INT_EBIE: end of block interrupt
   \arg       USART_INT_LBDIE:  LIN break detection interrupt
   \arg       USART_INT_ERRIE: error interrupt enable in multibuffer communication
   \arg       USART_INT_CTSIE:  CTS interrupt
   \arg       USART_INT_WUIE: wakeup from Deep-sleep mode interrupt
\param[out] none
\retval    none
*/
GD让我爱你不容易啊