[ ] itcm ram for critical functions
Enabled, a few methods marked, need to review what other methods would benefit. f61f40509e6fd5a8e1351fdd4f9510160c0e061b
[ ] dtcm ram for critical data
Enabled, need to decide what to put in there
[ ] O3/Ofast provide ~6% improvement for demodulation time, but make startup unreliable - why?