阻塞模式和非阻塞模式......
我的理解是:
阻塞模式就像是一个延时函数,当这个函数没处理完那么,所有的按照流程需要执行的代码都不会被执行,要等到这个延时完成,类似 平时看书上写的LED灯闪烁,用的delay()一样..而非阻塞模式就像他定义的那样,一般用的是中断,执行这条语句的时候,开启相应的中断达到一定的条件才进行处理,这样不会影响到流程的执行.我的理解就是,阻塞就是死等,非阻塞就是中断
可以参考
/**
* @brief Sends an amount of data in non blocking mode. * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), * the sent data is handled as a set of u16. In this case, Size must indicate the number * of u16 provided through pData. * @param huart Pointer to a UART_HandleTypeDef structure that contains * the configuration information for the specified UART module. * @param pData Pointer to data buffer (u8 or u16 data elements). * @param Size Amount of data elements (u8 or u16) to be sent * @retval HAL status */HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)/**
* @brief Sends an amount of data in blocking mode. * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), * the sent data is handled as a set of u16. In this case, Size must indicate the number * of u16 provided through pData. * @param huart Pointer to a UART_HandleTypeDef structure that contains * the configuration information for the specified UART module. * @param pData Pointer to data buffer (u8 or u16 data elements). * @param Size Amount of data elements (u8 or u16) to be sent * @param Timeout Timeout duration * @retval HAL status */HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout) ———————————————— 版权声明：本文为CSDN博主「liming0931」的原创文章，遵循CC 4.0 by-sa版权协议，转载请附上原文出处链接及本声明。原文链接：https://blog.csdn.net/liming0931/article/details/99721916