Briefly, running "make" without specifying any targets will build
everything. You may not necessarily want everything though and can
also specify targets to make. For example:

    make av7110

Please see the included Makefile for a list of all available targets.

Once the desired things are built, "make install" will put them into
the appropriate place, which is /lib/firmware by default although you
can override this with something like:

    make prefix=/desired/path install

In order to build everything you will need the following on the host
system:

    * A C/C++ compiler, like GCC
    * AVR-GCC
    * Standard C library for AVR-GCC
    * Cmake
    * GNU Bison/YACC
    * GNU Flex
    * GNU Gperf
    * GNU Make
    * GNU Wget
    * GNU C cross-compiler for ARM:
        - arm-linux-gnueabi-gcc
        - arm-linux-gnueabi-ld
        - arm-linux-gnueabi-objcopy
        - arm-none-eabi-gcc
        - arm-none-eabi-objcopy
        - arm-none-eabi-as

On GNU/Linux distros that use apt you can install these with:

    apt install avr-gcc avr-libc binutils-arm-linux-gnueabi \
    binutils-arm-none-eabi bison cmake flex g++ gcc \
    gcc-arm-linux-gnueabi gcc-arm-none-eabi gperf make wget

CARL9170 Firmware Configuration
-------------------------------
When building the carl9170 firmware you will be prompted with
configuration questions.

atusb: Firmware for the ATUSB IEEE 802.15.4 USB Adapter
-------------------------------------------------------

To flash the firmware you need dfu-util on the host. Issue

    make dfu

right after plugging the device into the USB port while the red led is
still on.

Refer to the included README file for more information.

Licensing
---------

You can redistribute and/or modify this file under the terms of the
GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any
later version.