Skip to content
port of free-DAP to SAMD21
Branch: master
Clone or download
Type Name Latest commit message Commit time
Failed to load latest commit information.
examples Merged nrf5x branch into master Dec 13, 2018


Port of Free-DAP + edbg CMSIS-DAP controller software to Arduino

This is a library that allows you to program Atmel Cortex M0 chips that support programming via DAP from an arduino-compatible board. Tested with a Metro M0 / Arduino Zero as the 'host' and with ATSAMD21's as the client but in theory any 3.3V Arduino board will work as host (just slower)

Works completely stand-alone, firmware is read from an SD card and uploaded directly from chip-to-chip. There are no computers required!

This is mostly a re-mix of Alex Taradovs excellent Free-DAP code @ - we just put both halves into one library and wrapped it up in Arduino compatibility

Right now we only have commands for the ATSAMD series. We'd be really into having other people add the SWD command magic for other chips, so if you do adapt this code for your favorite Cortex, please submit a pull request!

Other ARM chips should be (easily?) supportable. Copy Adafruit_DAP_SAM to a new file and make changes to support your favorite SWD-programmable chip.

Matching guide with some more information here

You can’t perform that action at this time.