Hello All,
I have ported the UART example (<InstallFolder>\examples\peripheral\uart) on top of blinky in nicla sense hardware. The TX is working only when rx pin is set as "UART_PIN_DISCONNECTED".
The TX is also working if I comment out the below code portion.
// Turn on receiver if RX pin is connected
if (p_comm_params->rx_pin_no != UART_PIN_DISCONNECTED)
{
return nrf_drv_uart_rx(&app_uart_inst, rx_buffer,1);
}
Also I am not able to use the on chip debugger, if uart module enabled/initialized.
I assume the code is entering into app_error_fault_handler() when RX is enabled.
I have also verified the PIN_CFN.
Following are the configurations used for reference:
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER_NICLA, /* GPIO2 = p9 */
TX_PIN_NUMBER_NICLA, /* GPIO1 = p20 */
RTS_PIN_NOT_CONNECTED,
CTS_PIN_NOT_CONNECTED,
APP_UART_FLOW_CONTROL_DISABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle_nicla,
APP_IRQ_PRIORITY_LOWEST,
err_code);
APP_ERROR_CHECK(err_code);
------------------------------------------------------------------------------------------
Relevant sdk_config:
#define RETARGET_ENABLED 1
#define UART_ENABLED 1
#define NRFX_UARTE_ENABLED 0
#define APP_FIFO_ENABLED 1
Please let me know if you need any further information. Any support would be really appreciated. Thank you
-
ijf1
