Use USB3320 as HS ext. phy. for STM32H753. Need boost drive strength

[DChan.31]

I'm use USB3320 with STM32H753.

And I want to control USB3320 with ULPI operation to boost drive strength.

Is there any method? I can't found solution both in HAL API and register.

Thanks.

[sirius506]

I know that there is a STM32F769I-DISCO example code that controls hidden secret register to access USB PHY through ULPI.

https://github.com/STMicroelectronics/STM32CubeF7/blob/master/Projects/STM32F769I-Discovery/Examples/PWR/PWR_CurrentConsumption/Src/stm32f7xx_lp_modes.c

I can't find similar example for H7, but it would worth to try.

Good luck.

[DChan.31]

Thanks a lot! You provide me a possible method to try.

[vosahlov]

Hey @DChan.31 ,

I know it is a long time from this post but did you manage to successfully interface the USB3320 with the H753? I'm struggling with this a lot now. Would you mind sharing pieces of your hardware & software solution?

Thanks in advance!