It's free firmware for the Allwinner H3 SoC's co-processor (ARISC)

• This firmware uses to make a real-time GPIO pulses generation and counting.
• This firmware can be used for the any CNC applications - STEP/DIR and PWM generation, ABZ encoders counting.

How to build?

• You'll need any Linux OS and a custom toolchain.
• Download the toolchain binaries from here - https://github.com/openrisc/newlib/releases
• Unpack toolchain binary files into the /opt/toolchains/or1k-elf folder
• Clone this repo to any folder: $ git clone https://github.com/orange-cnc/arisc_firmware.git
• Build the firmware by the make all command

How to use?

• You'll need any Orange Pi board with Alwinner H3 SoC and any Linux OS built by armbian. SD images can be found here - https://github.com/orange-cnc/armbian_build/releases, and here - https://www.armbian.com/download/.
• Copy arisc-fw.code binary file and all files from repo's folder /loader into the /boot folder of your Armbian OS.
• Restart your Orange Pi board.
• Clone arisc linux API repo to any folder of your Armbian OS: $ git clone https://github.com/orange-cnc/arisc_api.git
• Build arisc linux API by the make all command
• Run arisc linux API: $ ./arisc