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Later we customized the evaluation board CYPD3125 exactly, the charging not happening with our customized board. And we replaced the evaluation board components to our customized board it's working quite good.
How we can charge our customized board. Need to configure CYPD3125? If yes, Kindly suggest the possible ways to data transmission and charging.
Our application is used charge and data transmission. Attached Schematics for your reference.
As per your description "And we replaced the evaluation board components to our customized board it's working quite good.", may I understanding the device CYPD3125 on CY4531 can working well on your board, but the all new CYPD3125 can not work at all? If my understanding is correct, the next step you need do is program the firmware of CY4531 into the device on your board.