nrf5x-dk-gcc

A example of nRF51-DK/nRF52-DK application using gcc on Linux

Strongly inspired by : http://www.funwithelectronics.com/?id=168 https://github.com/hlnd/nrf51-pure-gcc-setup

Notes :

• nRF52 works but a "fix" is required in the SDK - see at the end of ths README
• Soft Device support not tested yet
• this is work in progress - feedback welcome !

Requirements

• ARM GCC toolchain (arm-none-eabi-*)
• nrftool (contains a experimental nRF52 support compared to the original nrftool)
• Segger's JLink software

Usage

Setup the information regarding the SDK you want to use by editing the following variables in the Makefile :

• SDK_TYPE
• SDK_VERSION
• SDK_URL
• SDK_INSTALL_DIR

Download the SDK : make get_sdk

Extract the SDK : make install_sdk

Generated a Makefile containing definitions for the various components in the SDK : make get_library

Compile the project : make all

Erase the flash : make erase-all

Program the flash : make program

nRF52 SDK fix

It looks like the linker file for the xxaa device is incorrect : the line

RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x10000

should be

RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x8000

(the linker file for the blinky example in the SDK has this corrected)