Hi,
Does "ble_app_uart" project can print debug message from "UART" interface? How can I do this job?
PS. My UART Port is at P0.18 (TX) and P0.19(RX).
Thank you,
Chianglin
Hi,
Does "ble_app_uart" project can print debug message from "UART" interface? How can I do this job?
PS. My UART Port is at P0.18 (TX) and P0.19(RX).
Thank you,
Chianglin
Hi Vidar,
Can I modify TXD to P0.18 and RXD to P0.19 for UART output?
Can I modify following code to do this purpose?
static void uart_init(void)
{
uint32_t err_code;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = 19 /*RX_PIN_NUMBER*/,
.tx_pin_no = 18 /*TX_PIN_NUMBER*/,
.rts_pin_no = RTS_PIN_NUMBER,
.cts_pin_no = CTS_PIN_NUMBER,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
#if defined (UART_PRESENT)
.baud_rate = NRF_UART_BAUDRATE_115200
#else
.baud_rate = NRF_UARTE_BAUDRATE_115200
#endif
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_event_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
}
In original source code, the TXD, RXD is define at P0.06, P0.08. The UART can print message and I can find BLE device on "RF UART APP".
But when I modify to P0.18 and P0.19, the "nRF UART APP” can not find this BLE device.
Do I also need to do something?
Thank you,
Chianglin
Can I modify TXD to P0.18 and RXD to P0.19 for UART output?
It shouldn't be a problem, but make sure that the RXD pin isn't left floating as that may cause framing errors, etc due to noise.
Hi Vidar,
I think P0.18 and P0.19 don't have problem to define as UART, because this 2 pins can work correct when I use "peripheral\uart" project.
The "nRF UART APP" can not find the BLE device which describe In my previous mail. May be the device had been crash, so BLE can not work.
The only change between “BLE can work or not" is "I modify the tx_pin_no and rx_pin_no in structure "comm_params".
Would you please tell me why my device is crash after I do these change?
Thank you,
Chianglin
Hi Vidar,
It's work now. It should have something wrong in my previous process step.
Thank you for your serious support.
Best Regards,
Chianglin
Hi,
Glad to hear that it works now, thanks for the update.
Best regards,
Vidar