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STM32f765 USB OTG

Shinoy
Associate II

‎2023-11-11 08:16 AM

Hello,

 

I see this in Errata es0334-stm32f76xxx.

"Host packet transmission may hang when connecting through a hub to a low-speed device"

When the USB on-the-go full-speed peripheral connects to a low-speed device via a hub, the transmitter internal
state machine may hang. This leads, after a timeout expiry, to a port disconnect interrupt.

 

Do you have a work around for this issue now?

 

Thanks,

Shinoy

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STTwo-32
ST Employee

‎2023-11-11 08:35 AM - edited ‎2023-11-11 08:38 AM

Hello @Shinoy and welcome to the ST Community :smiling_face_with_smiling_eyes:.

As mentionned on the ES0334, there is no workaround on that. However, increasing the capacitance on the data lines may reduce the occurrence.

All available workarounds are mentionned on the last revisions of all errata sheets.

Best regards

STTwo-32 

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