Want to use UART 1 with nRF9160 DK to print output on the console from another MCU

[Parth Sagar]

I am unable to read any uart input when I configure UART1 with nRF9160DK.

Please let me know if anything is wrong in my code/config

main.c

/*

* 

*

* SPDX-License-Identifier: Apache-2.0

*/

#include <zephyr.h>
//#include <misc/printk.h>
//#include <logging/log.h>
#include <drivers/uart.h>

static u8_t uart_buf[1024];

void uart_cb(struct device *x)
{
	uart_irq_update(x);
	int data_length = 0;

	if (uart_irq_rx_ready(x)) 
        {
		
                data_length = uart_fifo_read(x, uart_buf, sizeof(uart_buf));
		uart_buf[data_length] = 0;
	}
	printk("%s", uart_buf);
}

void main(void)
{
	struct device *uart1 = device_get_binding("UART_1");

	uart_irq_callback_set(uart1, uart_cb);
	uart_irq_rx_enable(uart1);
	printk("UART1 loopback start!\n");
	while (1) {
		k_cpu_idle();
	}
}

nrf9160dk_nrf9160ns.overlay

/ {
	chosen {
		zephyr,bt-uart=&uart1;
	};
};
&uart1 {
compatible = "nordic,nrf-uarte";
	current-speed = <115200>;
	status = "okay";
	tx-pin = <00>;
	rx-pin = <01>;
	rts-pin = <0xFFFFFFFF>;
	cts-pin = <0xFFFFFFFF>;
};

prj.conf

CONFIG_SERIAL=y
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_BSD_LIBRARY_TRACE_ENABLED=n
CONFIG_MAIN_STACK_SIZE=4096

I cannot see any data on my console even after sending data continuously to the console. Please guide me through the problem. I am also attaching the folder.

I add the folder in : D:\Softwares\SDK\v1.3.0\nrf\samples\nrf9160\uart

[Håkon Alseth]

Hi,

 

Parth Sagar said:

Do you think I need to add  CONFIG_UART_1_NRF_UARTE=y in my cfg file?

No need in ncs v1.3.0, as the dts has this peripheral enabled in the .overlay file.

 

Could you click where it says "tasks" in the SES text box, and select "output" and show what that states?

It might be that you need to delete your build folder, and regenerate the project. If that still shows errors, please post them to me.

 

Kind regards,

Håkon