Bootlin engineer and Allwinner platform maintainer Maxime Ripard has written a long article presenting the Nextthing C.H.I.P platform in issue #18 of French magazine OpenSilicium, dedicated to open source in embedded systems. The C.H.I.P has even been used for the front cover of the magazine!
In this article, Maxime presents the C.H.I.P platform, its history and the choice of the Allwinner SoC. He then details how to set up a developer-friendly environment to use the board, building and flashing from scratch U-Boot, the kernel and a Debian-based root filesystem. Finally, he describes how to use Device Tree overlays to describe additional peripherals connected to the board, with the traditional example of the LED.
In the same issue, OpenSilicium also covers numerous other topics:
- A feedback on the FOSDEM 2016 conference
- Uploading code to STM32 microcontrollers: the case of STM32-F401RE
- Kernel and userspace debugging with ftrace
- IoT prototyping with Buildroot
- RIOT, the free operating system for the IoT world
- Interview of Cedric Bail, working on the Enligthenment Foundation Libraries for Samsung
- Setup of Xenomai on the Zynq Zedboard
- Decompression of 3R data stream using a VHDL-described circuit
- Write a userspace device driver for a FPGA using UIO