Read ADC without reinitializing channel

[felix.letkemann]

Thank you very much! Using the information you gave me, I was able to add my own command to the micropython interpreter which directly returns the angle of the motor. The next days I will check if that allows me to speed up the motor to higher speeds.

[gbevis]

Dear Felix,

I am creating a controller for a switched reluctance motor with similar sampling needs to estimate instantaneous phase and speed. (Timing is extremely important in SRMs) Please provide details about how you are "hacking the firmware" to get quick access to the ADC.