how to jtag/swd cortex-a55 of rk3568 using openocd

[复制链接] · 发表于 2022-9-28 16:00:38

本帖最后由 feelthat 于 2022-10-3 23:28 编辑

1. Jtag Tap ID
2. Debug Base Address
3. cross trigger interface address

any idea for it?
(rk3568 is armv8-a cortex-a55)
恳请版主或原厂相关给一下解答若有高手也请协助
感谢感谢

只看该作者 · 发表于 2022-10-11 08:49:50

本帖最后由 feelthat 于 2022-12-28 11:59 编辑

answer at this link by Jesse Stone
https://fatalfeel.blogspot.com/2022/12/rk3566-rk3568-swd-debug.html

ps: after 2020 the firmware need unlock bin file for jtag to make it work

demo:
https://www.mediafire.com/view/zv37ffy0d4jjpgd/rk3568_jtag03.png