RDBUFF is nice
RDBUFF is nice

This works alright on the K20, and it gets us farther on the KE04. Also it's much cleaner! I must have been working from the original SWD spec before, since the ADIv5.2 spec has lots of new goodies like this.

scanlime/esp8266-arm-swd,scanlime/esp8266-arm-swd,scanlime/esp8266-arm-swd