Hi,
I am using the uart example from https://github.com/Rallare/fw-nrfconnect-nrf/blob/nrf9160_samples/samples/nrf9160/uart/src/main.c
I want to read serial data from another microcontroller through UART0 on nRF9160DK
I am connecting RX - P0.29 and TX P0.28
Moreover I have also added nrf9160dk_nrf9160ns.overlay and prj.conf files
nrf9160dk_nrf9160ns.overlay
&uart0 {
current-speed = <115200>;
status = "okay";
tx-pin = <28>;
rx-pin = <29>;
rts-pin = <0xFFFFFFFF>;
cts-pin = <0xFFFFFFFF>;
};
prj
CONFIG_SERIAL=y CONFIG_TRUSTED_EXECUTION_NONSECURE=y CONFIG_UART_INTERRUPT_DRIVEN=y CONFIG_BSD_LIBRARY_TRACE_ENABLED=n CONFIG_MAIN_STACK_SIZE=4096
main
/*
*
*
* 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 *uart = device_get_binding("UART_0");
uart_irq_callback_set(uart, uart_cb);
uart_irq_rx_enable(uart);
printk("UART0 loopback start!\n");
while (1) {
k_cpu_idle();
}
}
I cannot see anything on the terminal window even though I am sending data continuously
Please guide me through the same and let me know the necessary steps
