calls The LPUART_DRV_StartReceiveDataUsingDma function which: configures the block transfer installs the callback LPUART_DRV_CompleteReceiveDataUsingDMA that invoke the callback I installed on the LPUART receiver enables the overrun interrupt: LPUART_SetIntMode(base, LPUART_INT_RX_OVERRUN, true); st...
二、串口RX作为GPIO中断 此种唤醒方式需要连接通信两端的TX、RX、GND。当通信两端都处于空闲状态时,接收方的RX设为GPIO上拉输入,并检测下降沿中断。当发送方需要发送数据时,先发一些无用的数据,接收方检测到下降沿中断后,将RX引脚重新初始化为串口RX开始接收数据。需要注意的是,这种情况下,接收方一开始接收的可能...
DMA tx channel request failed, **operating without tx DMA** DMA rx channel request failed, **operating without rx DMA** If you were to add DMA channels, you would use the "dmas" and "dma-names" device tree properties. Read the documentation for more details: https://elixir.boo...
void on_rx_complete(void *driverState, uart_event_t event, void *userData){ LPUART_DRV_ReceiveData(INST_LPUART1, &rx_byte, 1UL); } But as long as in call this inside the main loop it works. Can any one help me on this. I want to build it in event driven mode. I want to ...