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USB EZ-PD™ Type-C Forum Discussions

RaRo_1233086
Level 2
Level 2
5 sign-ins 10 questions asked 10 replies posted

We are unable to disable Source only option in Config.h

Please help, using this Southchip Reference Code , this was a port over from a 3175 project that we want to use in a DRP port on our USB HUB but we noticed that polarity control does not work at all when sinking to this port using this code since its source only

please let us know how to enable sink option as well as src option

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1 Solution
ShifangZ_26
Moderator
Moderator
Moderator
10 likes given 250 sign-ins 1000 replies posted

Hi

CLA is designed for CAR Charger, it is power source only.

If you are designing a Power bank (=Dual Role Power) and Sink only, you need use example code: CYPD3171-24LQXQ_pb.

If you need use Southchip, for example, SC8815 or SC8915, you can use the empty example project I have been shared on the linkCY4532 Power Bank Firmware Clear For Single Type-C DRP Design :  . And add in the registers control in the project.

Best Regards,

Lisa

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ShifangZ_26
Moderator
Moderator
Moderator
10 likes given 250 sign-ins 1000 replies posted

Hi

CLA is designed for CAR Charger, it is power source only.

If you are designing a Power bank (=Dual Role Power) and Sink only, you need use example code: CYPD3171-24LQXQ_pb.

If you need use Southchip, for example, SC8815 or SC8915, you can use the empty example project I have been shared on the linkCY4532 Power Bank Firmware Clear For Single Type-C DRP Design :  . And add in the registers control in the project.

Best Regards,

Lisa

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Thank YOU, that helped for sure..

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