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沙发 沙发 沙发
沙发
沙发

好东西，学习中

**
  * @brief  Clears the USARTx抯 interrupt pending bits.
  * @param  USARTx: Select the USART peripheral.
  *   This parameter can be one of the following values:
  *   USART1, USART2 or USART3.
  * @param  USART_IT: specifies the interrupt pending bit to clear.
  *   This parameter can be one of the following values:
  *     @arg USART_IT_CTS:  CTS change interrupt
  *     @arg USART_IT_LBD:  LIN Break detection interrupt
  *     @arg USART_IT_TC:   Transmission complete interrupt.
  *     @arg USART_IT_RXNE: Receive Data register not empty interrupt.
  *   
  * @note
  *   - PE (Parity error), FE (Framing error), NE (Noise error), ORE (OverRun
  *     error) and IDLE (Idle line detected) pending bits are cleared by
  *     software sequence: a read operation to USART_SR register
  *     (USART_GetITStatus()) followed by a read operation to USART_DR register
  *     (USART_ReceiveData()).
  *   - RXNE pending bit can be also cleared by a read to the USART_DR register
  *     (USART_ReceiveData()).

好不容易找回密码登录进来，就是为了看看你这个教程里有没有关于USB初始化设置方面的内容，不要让人失望啊。

我也想要来学习学习

 good

好东西啊，谢谢分享

 下来看看

有沒有講USB？