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Hello,
I have a customer testing a custom captivate sensor with MSP430FR2633 for a self capacitive button and they're seeing the button touch event register before their set button threshold:
So as you can see the button seems to have a higher touch threshold than what is actually set in software. Any ideas on why this is happening?
The sensor settings are as follows:
Self Mode Frequency Hopping: Standard, Self Mode Oversampling: 2x, Noise Threshold: 50, the Count Filter: Enabled, the Count Filter Beta: 1. My total scan period is 3ms, and the sensors only take 0.560ms per cycle.
Since filtering is enabled, does this mean that the button operates on the filtered touch sensor reading? Or is it potentially based off the raw reading? Any ideas here would be appreciated!
Munan
Hi Munan,
You can try to disable this funciton then try again.
the Count Filter
When you enable filter funciton, there will have some delay, thus maybe will cause threshold not match with setting.
Thanks!
Best Regards
Johnson
Hi Johnson,
Thanks for the suggestion. Customer says the problem went away on its own so there's no way for him to replicate. I'll mark this issue as resolved for now!
Munan
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