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BLE uart

zhiyuan yan
Prodigy 101 points


我希望我的UART收到一包数据，只调用一次回调函数，而不是一个字节调用一次，DMA的这一段要怎么配置？

    uartConfig.configured           = TRUE;     uartConfig.baudRate             = HAL_UART_BR_38400;     uartConfig.flowControl          = FALSE;     uartConfig.flowControlThreshold = 128;     uartConfig.rx.maxBufSize        = 128;     uartConfig.tx.maxBufSize        = 128;     uartConfig.idleTimeout          = 6;     uartConfig.intEnable            = TRUE;     uartConfig.callBackFunc         = UserUartBack

  • 0
    TI__Intellectual 770 points

    Are you using TI BLE version 1.3.x ?

    The above setting do not affect the UART packet receive. It just set the UART setting itself. By using DMA, it will receive a packet in the 128 bytes buffer and waiting for applicaiton to process.

    Generally, if you are using TI BLE code, just define HAL_UART and DMA_PM=0. The UART will configure in DMA automatically.

  • 0 回复 Jerry
    Prodigy 101 points

    假设我给uart写一串数据11 22 33 44 的时候 uartRxCB 接收的回调函数是调用了四次  我是想就只调用一次callback函数 要怎么解决？