OpenOCD remote_bitbang protocol implemented on the Teensy 3.2 via USB serial
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Phillip Pearson
Phillip Pearson Collecting up queued packets so we can dump them all to the USB seria…
…l port at once -- which makes things way faster
Latest commit 0b6727c Feb 28, 2016

README.md

teensy-openocd-remote-bitbang

Copyright (C) 2016 Phillip Pearson pp@myelin.co.nz

The teensy-openocd-remote-bitbang.ino sketch implements the OpenOCD JTAG remote_bitbang protocol using a USB serial port, so you can use a Teensy as a simple USB JTAG adapter with OpenOCD and socat.

Run it on a Teensy 3.1 or 3.2 from PJRC: https://www.pjrc.com/teensy/teensy31.html

For more debugging info

python remote_bitbang_serial_debug.py -P 3335 /dev/tty.usbmodem*