Unable to print using printf or nrf_log_info

[fatimatayyab71]

I am using nrf5 sdk 17.1.0, segger embedded studio v6.40 and nrf52832-dk, when running the spi example, i do able to see the log only after the build, and when i reset the device no log is shown on the Jlink-RTT viewer. When running the uart example provided in nrf5 sdk i was unable to see any anything on the terminal also. Can you please let me know what might be the potential reason?

[fatimatayyab71]

#include <zephyr/kernel.h>
#include <zephyr/drivers/gpio.h>

/* 1000 msec = 1 sec */
#define SLEEP_TIME_MS   1000

/* The devicetree node identifier for the "led0" alias. */
#define LED0_NODE DT_ALIAS(led0)

/*
 * A build error on this line means your board is unsupported.
 * See the sample documentation for information on how to fix this.
 */
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);

int main(void)
{
	int ret;

	if (!gpio_is_ready_dt(&led)) {
		return 0;
	}

	ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
	if (ret < 0) {
		return 0;
	}

	while (1) {
		ret = gpio_pin_toggle_dt(&led);
		if (ret < 0) {
			return 0;
		}
		printk("\nError: no device found.\n");

		k_msleep(SLEEP_TIME_MS);
	}
	return 0;
}

I have tried to print using printk in blinky sample of nordic connect sdk, it does show led blink, but it also not print anything on the terminal.