BV4618 debounce does not work.

Hi.

Does anyone else have problems setting the BV4618 debounce property? i.e. "{ESC}[100r" or any value beyond 50? No matter what I set that value to, I get the exact same key stutter (double or triple key presses). All other functions for the keypad and LCD work. I am not using the hardware interrupt.

The maximum debounce value is 255 - this is not mentioned in the data sheet.

What is this value? milliseconds between full 16 switch pad scan? Milliseconds between individual key evaluation?

Regardless, there is no difference between 50, 100, 200...the key pad continues to stack up two or three presses SOMETIMES. Others, it works fine. It's like it's glitching.

The fact that debounce is having no effect means that the problem lays elsewhere (obviously). Some suggestions:
Start with the hardware first, check that the switches are not a high resistance when closed, ideally they should close at 0R,
check the wiring for loose dry joints and also the power supply could possibly cause this if it is fluctuating. If the switches are really bad then no amount of debounce will help.

Don't forget the software, check for subtle bugs that could introduce the extra keys, is there a timer involved? Could it be reading the value twice but only sometimes?

Hope that helps.