STM32F329 USB HS internal PHY on speed 480Mbit/sec

[Oleg Lozhechkin]

Posted on February 05, 2017 at 11:03

I am use stm32f429.

Me need USB HS connection (speed 480 Mbit/sec) configured as 'Device_Only'.

Can I am C for this

application?

Or me need use external PHY ?

OTG not need me.

Thank you.

[Mon2]

Posted on February 05, 2017 at 14:39

Hi. Your title has STM32F329 but working with STM32F4

See here:

https://community.st.com/0D50X00009Xke4ZSAR

Should be ok to use the internal USB PHY for USB HS. Also consider to source the STM32F429 Discovery board for quick testing of the sample code by ST.

[S.Ma]

Posted on February 05, 2017 at 18:50

Shall an integrated USB HS solution be needed in the future, STM32F72x might be the bext step

http://www.st.com/en/microcontrollers/stm32f723ze.html

 

[Oleg Lozhechkin]

Posted on February 06, 2017 at 06:34

I am use stm32f429 really.

I am made  mistake

in the message header. I am can not cerrect it.

Me need USB HS connection (speed 480 Mbit/sec) configured as 'Device_Only'.

Can I am use internal PHY for this

application?

Or me need use external PHY ?

OTG not need me.

Thank you.

[waclawek.jan · Accepted solution]

Posted on February 06, 2017 at 08:08

Can I am use internal PHY for this

application?

No. Internal PHY in STM32F429 is Full Speed only, for both USB modules. See STM32F429 datasheet, DocID024030 Rev 9, ch.3.34 Universal serial bus on-the-go high-speed (OTG_HS):

The USB OTG HS supports both full-speed and high-speed operations. It integrates the

transceivers for full-speed operation (12 MB/s) and features a UTMI low-pin interface (ULPI)for high-speed operation (480 MB/s). When using the USB OTG HS in HS mode, anexternal PHY device connected to the ULPI is required.

JW