OGCAN - CAN bus interface for OpenGrab EPM

CAN bus interface for OpenGrab - electro-permanent cargo holding magnet.

Based on UAVCAN - CAN bus for UAV.

UAVCAN interface

Supported standard data structures (data structs that are mandatory for any UAVCAN node are not listed):

• Configuration: uavcan.protocol.param.*
• Magnet control: uavcan.equipment.hardpoint.*

OGCAN publishes state of the EPM once a second using uavcan.equipment.hardpoint.Status.

EPM can be controlled using uavcan.equipment.hardpoint.Command.

Default config:

• CAN bitrate: 1 Mbps.
• UAVCAN Node ID: 1.

Getting Hardware

Grab your OGCAN hardware here: http://nicadrone.com/index.php?id_product=18&controller=product

Schematics and Gerber files are available in this repository; hardware design files are available upon request.

Building Firmware

Prebuilt binary for the latest stable version is available in firmware/prebuilt/*.bin.

The firmware can be built with Embedded ARM GCC or any other GCC-based ARM toolchain.

git submodule update --init --recursive
cd firmware
make

# Flash. The following helper scripts are available:
# ./zubax_chibios/tools/stlink_flash.sh       # ST-Link v2
# ./zubax_chibios/tools/blackmagic_flash.sh   # Black Magic Debug Probe