1. Can you measure the difference counts of each of your buttons and verify that if one button is touched, the other button doesn't have a difference count more than the finger threshold. If this is the case, try increasing the finger threshold.
2. This could also be due to high sensitivity. Try reducing the sensitivity of the buttons.
3. Try using Flanking sensor suppression feature.
4. Check if you have enabled the Button auto reset feature.
Thank you for your reply !
I tried to modify the 3 last points (sensitivity, FSS, ARST) and nothing change.
I will measure the difference count, but what software can I use to debug this chip ?
(The kit has a RS232 interface for debugging)
How should I increase the finger threshold on this chip ?
Many thanks in advance,