Capsense malfunctional in EMS test

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Capsense malfunctional in EMS test

AdamsChengTW
Level 3
Level 3
10 sign-ins 5 sign-ins 10 questions asked
‎Apr 29, 2020 11:14 PM
‎Apr 29, 2020 11:14 PM
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HI,

I use capsense function for my company new vehicle air condition HMI product.

Some key will auto trigger in EMS test. (Fail frequency in the  10~12 MHz)

Capsense setting is manual In PSoC creator. (If set Auto some keys are too sensitive)

My key press detect code in the below.

Are there any code design suggestions under the interference of EMS?

capsens2.jpg

capsens1.jpg

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1 Solution

Re: Capsense malfunctional in EMS test

Hari
Moderator
Moderator
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750 replies posted 500 replies posted 250 solutions authored
‎Apr 30, 2020 05:12 AM
‎Apr 30, 2020 05:12 AM
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Hi ChHs_4614611​

In the code, you are scanning the sensors continuously. CapSense_ScanAllWidgets must be called if CapSense block is free. that is, The CapSense_ScanAllWidgets must also be inside the if (CapSense_NOT_BUSY == CapSense_IsBusy()) statement.

Thanks,
Hari

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