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Hello,
I'm developing a 4 key capsense PCB with CY8C20447S (with shield and guard)
I'm testing the SmartSense_EMCPLUS User Module and it works well, but I can't detect a permanent touch (the detection goes OFF after some time, one-two seconds)
I'd like to know if it's a limitation of the UM or should I be able to achive a long lasting touch.
Thanks.
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Consider posting your project here to be looked at by Forum members.
If you are uncomfortable with that extract a subset from project that
just covers the problem and post.
Google Chrome is apparently a problem when uploading, use Firefox, IE
to post project.
Regards, Dana.
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Hi Dana,
thanks for your answer. There's no secret in the implementation: it's an example from the CY8C20xx7_S design guide.
Attatched you'll see the schematic.
In the next post there's a layout (very similar) to the actual layout.
Has anyone used this module with long touchs?
Regards
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Hi,
Cypress solved my problem in a Case:
Please check the autoreset parameter in the UM is enabled or not.If enabled,the baseline will update continuously and make the difference count zero.
Thanks
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Hi,
I have same problem. I am working with CY8C20180 Express Cap sense controller.I don't have auto reset enable still after 2 sec baseline will jump to high value and make diff count 0.