ULPI PHY issue with STM32F429

[charles239955]

Posted on November 14, 2016 at 16:19

Hi All,

I have a USB3333 connected to a STM32F429. I can't seem to get the PHY to enumerate in high speed mode - it always falls back to full speed. My code is using the ST cube example with minor modifications (pin changes etc).After doing some digging I have found some other posts that refer to issues with F4xx micros and some SMSC PHYs (

https://my.st.com//public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32F2F4%20problems%20with%20various%20ULPI%20USB%20PHYs

 and

https://my.st.com//public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB3340%20from%20SMSC%20allways%20working%20in%20FS%20usin%20a%20STM32F407

 and possibly

https://my.st.com//public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/USB%20HS%20Hi-Speed%20Alternative%20ULPI%20Transceiver

). There is nothing official from ST that I can find anywhere. There is nothing in the latest errata.Does anyone have any information on this? Can anyone from ST provide a comment please?I would be very grateful for any information.Thanks in advance. null

[Tesla DeLorean]

Posted on November 14, 2016 at 17:32

These type of part selection, and part issues, should be something discussed with an FAE during the design phase. You could try the Online Support request, but ST really needs a ''Register My Project'' type page to get support/resources assigned as appropriate. Some of the SMSC part evidently don't work with some of the STM32 parts

The FAE staff really don't seem to participate here, a policy I really don't understand.