nRF9160-DK - Make Application From Scratch

Question

Hi, 
 I have nRF9160-DK kit and its environment is set such as nRF Connect SDK and Segger Embedded Studio. 
 I want to build a simple application from scratch for example toggling LEDs on the board or anything else. 
 I have tried some sample application supplied with and they are running fine. 
 Could you provide any tutorial or documentation which shows how to build application from scratch for nRF9160-DK? 
 Thanks, 
 Aakash.

Aakash_Soni · Accepted Answer

I have figured out how to control LEDs of the board. See following: This tutorial targets windows 10 based application development for nRF9160-DK board. This is my way of making this application. I am new with this board and there might be better/official way of developing application for this board. This tutorial does not require sim card activation. Environment Setup: It is expected that your environment is set by installing the nRF Connect for Desktop application and following Getting Started Assistant from the installed application. Link for the nRF Connect for Desktop: http://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/gs_ins_windows.html Once installed, download the Getting Started Assistant from add/remove apps tab and follow the steps carefully. The following link is helpful during setting-up an environment for the nRF9160-DK board: https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Connect-for-desktop Once the environment is set, you should try running the sample applications provided with the installation to verify everything is working properly. Actual Tutorial: In this tutorial, a led blinking application is developed with same sample folder structure provided in cs rf\samples rf9160 folder. First, create a folder in above mentioned directory and name is blink_leds or anything you would like ( cs rf\samples rf9160\blink_leds ). Then, create another folder inside blink_leds folder and name it src ( cs rf\samples rf9160\blink_leds\src ). Inside the src folder, our main main.c programme is saved. Main.c programme is provided at the end of this document. After that, copy these three files, CMaleLists.txt , prj.conf and sample.yaml , from provided sample files ( e.g. cs rf\samples rf9160\at_client ) and paste it into blink_leds folder. Now open these files and replace the content of these files with this: For CMakeList.txt: cmake_minimum_required(VERSION 3.13.1) include($ENV{ZEPHYR_BASE}/cmake/app/boilerplate.cmake NO_POLICY_SCOPE) project(NONE) target_sources(app PRIVATE src/main.c) For prj.conf: CONFIG_GPIO=y CONFIG_SERIAL=n For sample.yaml: sample: name: blink_leds Sample tests: sample.blink_leds: tags: LED gpio filter: DT_GPIO_LEDS_LED0_GPIO_CONTROLLER depends_on: gpio harness: led platform_whitelist: nrf9160_pca10090 tags: ci_build Save these files and open the SEGGER Embedded Studio . In SEGGER, click on File → Open nRF Connect SDK Project. This gives you following window and set the parameters by navigating to your folder and as shown in the picture. After that, click on Build → Build zephyr/zephyr.elf to generate .elf file and then click Build → Build and Run to flash the board. It should work. All these LEDs should toggle on and off with 1 second interval. //This code is adapted and modified from the Blinky sample project. #include #include #include #define LED_PORT0 LED0_GPIO_CONTROLLER #define LED_PORT1 LED1_GPIO_CONTROLLER #define LED_PORT2 LED2_GPIO_CONTROLLER #define LED_PORT3 LED3_GPIO_CONTROLLER #define LED0 LED0_GPIO_PIN #define LED1 LED1_GPIO_PIN #define LED2 LED2_GPIO_PIN #define LED3 LED3_GPIO_PIN /* 1000 msec = 1 sec */ #define SLEEP_TIME 1000 void main(void) { int cnt = 0; struct device *dev0, *dev1, *dev2, *dev3; dev0 = device_get_binding(LED_PORT0); dev1 = device_get_binding(LED_PORT1); dev2 = device_get_binding(LED_PORT2); dev3 = device_get_binding(LED_PORT3); /* Set LED pin as output */ gpio_pin_configure(dev0, LED0, GPIO_DIR_OUT); gpio_pin_configure(dev1, LED1, GPIO_DIR_OUT); gpio_pin_configure(dev2, LED2, GPIO_DIR_OUT); gpio_pin_configure(dev3, LED3, GPIO_DIR_OUT); while (1) { /* Set pin to HIGH/LOW every 1 second */ gpio_pin_write(dev0, LED0, cnt % 2); gpio_pin_write(dev1, LED1, cnt % 2); gpio_pin_write(dev2, LED2, cnt % 2); gpio_pin_write(dev3, LED3, cnt % 2); cnt++; k_sleep(SLEEP_TIME); } }

nRF9160-DK - Make Application From Scratch

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