This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

zstack2.5.1 CC2530串口参数设置

Other Parts Discussed in Thread: CC2530

HAL_UART_DMA_IDLE这个参数具体是什么作用,参数的值大小设置有没有限制?在低波特率的时候,一帧数据被拆分成好几次传输,网上有人说可以修改这个参数,但是没看明天它的具体作用。

  • 您可以看一下

    #define HAL_UART_DMA_IDLE         (1 * HAL_UART_MSECS_TO_TICKS)

    dmaCfg.rxTick = HAL_UART_DMA_IDLE;

    在串口配置中,有 uartConfig.idleTimeout          = SERIAL_APP_IDLE;   // 这个参数主要用于串口接收中,在串口接收到数据开始算起,如果经过idleTimeout ms的时间还没有接收到新的数据,那么就会调用callback函数,并返回事件HAL_UART_RX_TIMEOUT,用于回调函数中进行具体的判断。

    在协议栈安装文件夹内的 HAL Driver API.pdf内有相关说明

    config.idleTimeout – This parameter indicates rx timeout period in milliseconds. If Rx buffer hasn’t received new data for idleTimout amount of time, a callback will be issued to the application with HAL_UART_RX_TIMEOUT event. The application can choose to read everything from the Rx buffer or just a part of it. This parameter is supported only by MSP platforms. For CC2530 platforms, this parameter is replaced with compile flag HAL_UART_ISR_IDLE (in case interrupt is used) or HAL_UART_DMA_IDLE (in case DMA is used).

  • 很高兴能帮到您!
x 出现错误。请重试或与管理员联系。