Build application from main.c

[Alejandro Chavez]

Hi everyone!

I'm new using Nordic Semiconductor products, I have a Nordic Thingy 91  running Asset Tracker application by default.

I want to test only specific things first, this case I want to run this main.c file in order to toggle the NMOS pins.  

#include <zephyr.h>
#include <misc/printk.h>
#include <gpio.h>

static struct device *gpio_dev;
static bool nmos_state = false;

void toggle_nmos() {
    nmos_state = !nmos_state;

    if (nmos_state) {
        // turn on 
        printk("Setting GPIO pin to 1, %d\n", gpio_pin_write(gpio_dev, 13, 1));
    }
    else {
        // turn off
        printk("Setting GPIO pin to 0, %d\n", gpio_pin_write(gpio_dev, 13, 0));
    }
}

void main(void)
{
    gpio_dev = device_get_binding("GPIO_0");
    gpio_pin_configure(gpio_dev, 16, GPIO_DIR_OUT);

    while (true) {
        toggle_nmos();
        k_sleep(2000);
    }
}

What other files or libraries I have to write in order to correctly build this application? The idea is to generate the app_signed.hex file, flash and test.

Thanks in advance,

Alejandro Ch.

[Heidi]

Hi!

Mainly you need to add a CMakeLists.txt file that looks like this:

cmake_minimum_required(VERSION 3.13.1)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(case_260461_project_name)

target_sources(app PRIVATE src/main.c)

and a prj.conf file that looks like this:

CONFIG_GPIO=y

I can test and run it all for you, but which NCS tag would you like to work on? 

Best regards,

Heidi

[Alejandro Chavez]

Hi Heidi! Thank you for reply!

I'm currently working with NCS 1.4.0

I'm gonna try to build it too and test, if you can do it and give your feedback would be great!

Thanks angain,

Alejandro Ch.