确实STM32F4, F7, H7都是USB 2.0, 本人之前看文档有疏漏.
感谢 @oyhprince 提醒.
F7 Datasheet:
• Advanced connectivity
– USB 2.0 full-speed device/host/OTG
controller with on-chip PHY
– USB 2.0 high-speed/full-speed
device/host/OTG controller with dedicated
DMA, on-chip full-speed PHY and ULPI
H7 Datasheet:
The devices embed two USB OTG high-speed (up to 480 Mbit/s) device/host/OTG
peripheral. OTG-HS1 supports both full-speed and high-speed operations, while OTG-HS2
supports only full-speed operations. They both integrate the transceivers for full-speed
operation (12 Mbit/s). OTG-HS1 features a UTMI low-pin interface (ULPI) for high-speed
operation (480 Mbit/s). When using the USB OTG-HS1 in HS mode, an external PHY
device connected to the ULPI is required.
The USB OTG HS peripherals are compliant with the USB 2.0 specification and with the
OTG 2.0 specification. They have software-configurable endpoint setting and supports
suspend/resume. The USB OTG controllers require a dedicated 48 MHz clock that is
generated by a PLL connected to the HSE oscillator.
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