I am following along this example on your website: Exercise 1 - Nordic Developer Academy, and currently trying to complete this excercise: Exercise 1 - Nordic Developer Academy
I tried it with a nRF52840 dongle, which worked fine. Then I started trying to go through the same steps with the nRF52840 DK, but I am unsuccesfull in getting any output shown to my VCOM, which I am selecting via the vs code extension. I can connect fine without any issues, but I do not get the message: *** Booting nRF Connect SDK.
I am using nRF Connect SDK toolchain v2.9.1.
/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
#include <zephyr/drivers/gpio.h>
/* STEP 6 - Include the header file of printk */
#include <zephyr/sys/printk.h>
/* STEP 8.1 - Define the macro MAX_NUMBER_FACT that represents the maximum number to calculate its
* factorial */
#define SLEEP_TIME_MS 10 * 60 * 1000
#define SW0_NODE DT_ALIAS(sw0)
static const struct gpio_dt_spec button = GPIO_DT_SPEC_GET(SW0_NODE, gpios);
#define LED0_NODE DT_ALIAS(led0)
static const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(LED0_NODE, gpios);
/* STEP 8.2 - Replace the button callback function */
void button_pressed(const struct device *dev, struct gpio_callback *cb, uint32_t pins)
{
gpio_pin_toggle_dt(&led);
}
static struct gpio_callback button_cb_data;
int main(void)
{
int ret;
/* STEP 7 - Print a simple banner */
printk("nRF Connect SDK Fundamentals - Lesson 4 - Exercise 1\n");
/* Only checking one since led.port and button.port point to the same device, &gpio0 */
if (!device_is_ready(led.port)) {
return -1;
}
ret = gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE);
if (ret < 0) {
return -1;
}
ret = gpio_pin_configure_dt(&button, GPIO_INPUT);
if (ret < 0) {
return -1;
}
ret = gpio_pin_interrupt_configure_dt(&button, GPIO_INT_EDGE_TO_ACTIVE);
gpio_init_callback(&button_cb_data, button_pressed, BIT(button.pin));
gpio_add_callback(button.port, &button_cb_data);
while (1) {
k_msleep(SLEEP_TIME_MS);
}
}
