28 Jan
2017
28 Jan
'17
3:02 p.m.
Try moving lines 60, 70, 80 to be located AFTER 90, 100, 110, i.e. change their line numbers to 116,117,118. If the new order of operations causes the other motor to stutter, then the culprit is probably the I/O writes, as per my previous email.
Already tried that. Thought I mentioned it in the original message. The result of that experiment is it's still the bit/port/motor controlled by button 0 that stutters, even though the button 1 code comes first.