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loop_y0u
Level 4
Level 4
25 replies posted 50 sign-ins 10 questions asked

Hi Community, 

I'm currently working with CapSense Touch Switch Application. I'm using CY8C4245AXI-483, CY8C4245LTI-M445 MCUs. I want to use an API with which I can Reset or give a Refresh to my Capacitive Touch application for a moment(lets assume for 2 seconds) and then the CapSense will be active again. The step or implementation I need is because sometimes my touch gets unresponsive until and unless I remove the power supply and give it back again. 

I've came across a solution is to use "WDT Reset" as suggested by ChatGPT. But It'll simply restart my program, making it hard to debug the issue if some other issue hits my application. 

I hope you understand my issue and Terms. If not please feel free to ask me more about it. I'll be happy to explain my issue.

 

Thanks and Regards,

Pankaj

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1 Solution
Arpit_S
Moderator
Moderator
Moderator
50 likes received 250 replies posted 100 solutions authored

Hi @loop_y0u ,

 

I think we need to investigate why CAPSENSE Sensors are becoming unresponsive after some time.

Can you make sure that you are following the 10*R*C rule? Refer to Section Sense clock frequency and equation 37 in https://www.infineon.com/dgdl/Infineon-AN85951_-_PSoC_4_and_PSoC_6_MCU_CapSense_Design_Guide-Applica... 

Complete charging and discharging of sensor is important. Can you probe the sensor and share the waveforms with me? It must look like Figure 68 Properly tuned shield waveform in https://www.infineon.com/dgdl/Infineon-AN85951_-_PSoC_4_and_PSoC_6_MCU_CapSense_Design_Guide-Applica... 

Thanks!
Kind Regards

Arpit Srivastav

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1 Reply
Arpit_S
Moderator
Moderator
Moderator
50 likes received 250 replies posted 100 solutions authored

Hi @loop_y0u ,

 

I think we need to investigate why CAPSENSE Sensors are becoming unresponsive after some time.

Can you make sure that you are following the 10*R*C rule? Refer to Section Sense clock frequency and equation 37 in https://www.infineon.com/dgdl/Infineon-AN85951_-_PSoC_4_and_PSoC_6_MCU_CapSense_Design_Guide-Applica... 

Complete charging and discharging of sensor is important. Can you probe the sensor and share the waveforms with me? It must look like Figure 68 Properly tuned shield waveform in https://www.infineon.com/dgdl/Infineon-AN85951_-_PSoC_4_and_PSoC_6_MCU_CapSense_Design_Guide-Applica... 

Thanks!
Kind Regards

Arpit Srivastav

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