This howto explains how to get the firmware from git, setup the build environment and build and flash the firmware to the rad1o.

An easier (but not as cutting-edge) alternative is to update from a release.

• a rad1o
• a computer running something similar to Linux
• git

• clone the rad1o firmware repository from git

  git clone https://github.com/rad1o/f1rmware.git

• If you did that already some time ago, get the latest changes:

  cd f1rmware
  git checkout master
  git pull

• install the following build requirments, see doc/build.md for details how to install on your system:
  • arm-gcc
  • python-yaml
  • xxd
  • dfu-util
  • cmake

• setup the hackrf and libopencm3 submodules:

  git submodule init
  git submodule update

• build everything

  make
  cd smartflash
  make build

• if that is successfull, all firmware files end up in smartflash/IMG. Boot the rad1o in MSC-mode (joystick UP while you turn it on) and
  • either copy them manually (your path will be different)

  cp smartflash/IMG/* /media/ABCD-1234

• or have the FLASHgui app running to automatically write the files to any rad1o connected in MSC-mode

  cd smartflash
  make run

• you can also use FLASHgui to do a complete reinstall of a rad1o, including the bootloader, CPLD and all firmware files. For this, hold the joystick DOWN during powerup. The rad1o will blink red when done.

• a rad1o running the latest firmware from git