Cant send or receive on UART 1 NRF9160

[DannyDS]

I have enabled UART_1 but cant seem to send any data or receive any, I have hooked it up to logic analyser and cant see any trx data coming from the board.

If i set my config to output debug over uart1 instead of default uart0 It works, so my pin setup must be correct.

 here is my prj.conf

CONFIG_SERIAL=y
CONFIG_UART_NRFX=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_UART_INTERRUPT_DRIVEN=y

and my pin setup 

&uart1 {
status = "okay";
current-speed = <9600>;
tx-pin = <5>;
rx-pin = <6>;
};

I am trying to send data using this command

 struct device *uart1_dev;
 uart1_dev = device_get_binding("UART_1");
 uart_irq_callback_set(uart1_dev, uart_cb);
 uart_irq_rx_enable(uart1_dev);

 while (1) 
{
  uart_fifo_fill(uart1_dev, "AT\r" ,sizeof("AT\r"));
  k_sleep(K_MSEC(2000));
                
}

Thanks

[Waqar Ahmed]

Hi Hakon,

we are facing the same issue for UART 1 on pin 9 and 8 on our custom board.

Although same code work on  nRF9160 dk properly.

the UART1 pins on nRF9160 dk are pin 0 and 1.

[Hakon]

Please open a separate ticket for this.