nrf51822 + ST-Link V2 Debugging

I'm working on a project where I need to program an NRF51822 using an ST-Link V2 (well, perhaps I don't have to do it this way, but that's what I'm currently doing/own).

I'm pretty sure it's running properly, but I really need a debug console to get some information back from the NRF51 module to make sure things are connected OK.

I'm not going to lie:

• I'm really quite new to this, and most of my success thus far has been thanks to quite in-depth tutorials.
• I'm using ubuntu and openOCD for programming
• I'm not sure what I need to put in my program in order to get debug/console info out (and I'm not even sure what I would do to receive it on my computer).

I would really appreciate some help on:

1. What to add to my program to log info to the console, and
2. How to view that debug console on my computer.

Thank you very much!

You need to use such OpenOCD config file to connect with ST-Link

#nRF51822 Target
source [find interface/stlink-v2-1.cfg]

transport select hla_swd

set WORKAREASIZE 0x4000
source [find target/nrf51.cfg] 

You need to insert your version stlink-v2-1.cfg or stlink-v2.cfg

Also you need to add this to your makefile to write program

flash: $(OUTPUT_BINARY_DIRECTORY)/$(HEX)
    $(OPENOCD) -d2 -f $(TEMPLATEROOT)/openocd.cfg -c 'init_reset halt; program $(OUTPUT_BINARY_DIRECTORY)/$(HEX) verify; reset; exit'

Debug is more complex. You'd better set eclipse with OpenOCD/GDB to make it. For console solution you can follow this lesson

This worked for me. Good luck.