I try to start uart like this:
uartParams.baud_rate = UART_BAUDRATE_BAUDRATE_Baud115200;
uartParams.tx_pin_no = tx;
uartParams.rx_pin_no = rx;
uartParams.use_parity = false;
uartParams.flow_control = APP_UART_FLOW_CONTROL_DISABLED;
uartBuffers.rx_buf = rxBuffer;
uartBuffers.rx_buf_size = sizeof(rxBuffer);
uartBuffers.tx_buf = txBuffer;
uartBuffers.tx_buf_size = sizeof(txBuffer);
auto error = app_uart_init(&uartParams, &uartBuffers, uart_evt_handler, APP_IRQ_PRIORITY_HIGH);
if (error != NRF_SUCCESS) {
DEBUG_ERROR<< "Failed to init uart for esp8266 use: " << error;
return false;
}
This has worked perfectly on SDK 12.1, but 12.2 fails with error 8 (bad state). Bad state should not be possible at all when flow control is off if I read the app_uart_init documentation correctly... Have I missed someting? :\
