Getting started with a custom nRF9160 board and Eclipse IDE instead of SEGGER

[newUser]

We just received a batch of custom boards containing the nRF9160. I would like to test them and start developing our actual application.

So far I have switched SW11 to match the DK voltage with our board voltage, and connected the P22 Debug Out to our board. It seems that when I flash a program, our custom board is targeted. We see its status LED blink.

Currently I am experiencing some barriers:
- Can I use Eclipse instead of SEGGER?
I have used SES for the past 2 days, and it's just not what I want to use. What are steps to take so I can use Eclipse?

- How to define our custom board so I can e.g. blink its LEDs?
The LEDs are on different pins than they are on the DK.
Besides adding a new board folder to the zephyr/boards folder, what are the actual changes I should make to these files. Currently when I tried it with Hello_world, i get "attempt to assign the value 'y' to the undefined symbol"
What other files do I need to edit?
How do I actually make the build use my custom board?

[Nguyen Hoan Hoang]

If you like bare metal led blinking and use eclipse, try the IOsoanta library.  https://github.com/IOsonata/IOsonata

It has ready made Eclipse native project for LED blinking and drivers for UART, SPI, I2C as well.  No Zephyr in your legs, no board to define. Just give it the pins numbers you want to use.  Complete board independent and rtos independent. 

The nRF91 target is in ARM/Nordic/nRF91

[newUser]

Thank you for your answer. Though, our system is a little more complex than just LED blinking. It would probably be better to use an RTOS.