Thanks for the response.
The previous thread which you have mentioned is for CCG3PA EVK board & with that we are able to do firmware update using miniprog3 in EVK board.
But now we are using CYPD3171-24LQXQ & CYPD4126-40LQXI controllers(bought from Digikey) and made our own PCB with that controllers for my application.
In this new board we are unable to acquire the port using Mini Prog3 for firmware update. In this new board we found the above problem.
Please help me to resolve this problem.
Thanks & Regards,
If you are doing the SWD settings correct, you should be able to see the CCG3PA/CCG4 device listed under miniprog3 in the 'select debug target' window. Are you able to view that?
Please also share the schematics so that I can review.