Manual Velocity PID, anyone successful?

[Jared Russell]

Originally Posted by Joel J.

if control can be negative, then a right shift can have a disastrous effect! mcc18 v2.4 does NOT shift in 1's for a negative number. Instead, it treats all numbers as unsigned.

For example,

int control = -16;
control = control >> 2;

After that snippet, you'd expect control to be -4, but in actuality its 16380. Quite different.

Wow - I definately would have thought that a shift would extend the sign.

I guess I should have RTFM.