cheap button or bad coding?

MIDIbox SID
1

hi, I build a Step A control surface for my sid with push buttons.  Everything is working fine except that half the time I push my increase or decrease button, the value increase (or decrease) by more than one…  usually two and sometimes three.  Is there a parameter I didn’t see in my .asm file that can fix this or is it just because I have cheap push button?

thanks

2

Normally the buttons are debounced by software.

There are more possibilitys than bad knobs.

If I remember right there is a value to change the debounce behaviour.

Have a look in the source code…maybe you’ll find it.

You also can try to debounce a bad knob with a resistor and a small cap (10 ..100 nF).

greets

Doc