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zephyrproject-rtos / zephyr

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
https://docs.zephyrproject.org
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Request supporting OTG_HS port on STM32F4/F7 SoCs #8791

Closed jli157 closed 6 years ago

jli157 commented 6 years ago

The OTG_HS port on STM32F4 SoCs can support both full-speed USB transmission with its integrated transceiver at 12Mbps, and high-speed USB transmission at 480Mbps with the external USB phy. So, the pins PB14 and PB15 from OTG_HS port can be directly used as a full-speed USB interface, providing same functionality as the OTG_FS port from PINs PA11 and PA12. To support OTG_HS as a full-speed USB port, the device driver usb_dc_stm32 needs to be changed to use the corresponding registers for OTG_HS port.

qianfan-Zhao commented 6 years ago

but seems there doesn't has a nucleo or discovery board has a built-in USB HS phy.

jli157 commented 6 years ago

STM32F723 has a built-in HS port. So, this request can be verified with STM32F7 boards.