Experiment with OpenOCD JTAG for CC1352P

[omerk]

https://www.ti.com/tool/SIMPLELINK-OPENOCD

Not sure if TI's fork is upstreamed already but theoretically we should be able to bitbang JTAG for CC1352P on the Pi with this, after linking the solder jumpers on the board:

[srandier]

Hello @omerk

According to that page and if I understand welll, SIMPLELINK-OpenOCD is now part of the OpenOCD source.

On the revision A1 board the layout is different than what is displayed here. What steps should I follow to upload firmware?
Thanks

[omerk]

Hey @srandier, just replied to your comment on Issue #1. Good news is under normal circumstances JTAG is not needed to flash zoe2 as the chip itself has a ROM bootloader that stays active unless it is disabled by the firmware (therefore it is crucial to use the right firmware file).

The prototype you have is an earlier revision that doesn't expose the JTAG pins, if you're interested in exploring JTAG and documenting it I can send you one of the newer boards. Offer is valid for others who might be watching this repo as well :-)