This is mostly because of hardware design issue, check the XRES pin connection and power supply lines, probe the Vtag,XRES, SDA, SCL and see if any issue, or post the schematic of your custom board here to let the community experts to check and help you.
Your PSoC Programmer window has below status:
As your schematic shows the power supply is 3.3V and the PSoC Programmer also shows 3.4V which is matching.
Also, I observed that the PSoC Programmer is able to connect to the Miniprog3 device.
Is it observed across all the hardware boards that you have?
Do you have any reference boards from Cypress, if so can you try read command using the Miniprog3?
Can you reduce the clock speed which can be configured in the list box next to the Clock Speed
Thank You & Regards,
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Thanks for reply, issue is solved, reset pin issue in board, Now able to program the CCG2 device successfully.
Would you let us know what exactly is the issue?
Thank you & Regards,