PSoC6 and capsense interface

[praveen_kullu]

I have gone through  example codes and documentation of using capsense on my CY8CPROTO-062-4343W Kit, i am not sure how capsense is communicating with PSoC 6. I'd Appreciate the help. thanks.

[Hari · Accepted solution]

Hi @praveen_kullu 

CapSense is a peripheral in PSoC 6 device. The PSoC 6 core can directly access the CapSense registers to obtain the raw counts, which is the output of the CapSense block to determine a touch. There is no communication channel that is required. 

The CPU initiates a CapSense scan by writing into the CapSense block's registers and the IP takes care of scanning the block and finding the raw counts. This is then read by the CPU, processed against a baseline that it stores in RAM and the status is calculated. 

Please let me know if there are any further queries.

Best regards, 
Hari