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MAKA · 2023-11-29

Hi,I'm having problems with STM32H723VET6 (100 pin device) and ULPI using USB3343. After ULPI reset USB3343 starts the USB clock (60MHz). But when I enable MCU ULPI clock with __HAL_RCC_USB1_OTG_HS_ULPI_CLK_ENABLE() the USB clock is stopped and never...

MAKA · 2023-11-29

By changing the GPIO speed settings (USB_OTG_HS_ULPI_STP to GPIO_SPEED_FREQ_LOW) the USB clock does not stop anymore after core reset or it restarts properly. So I believe this is a timing issue. USB3343 datasheet states this about exiting low power ...

MAKA · 2023-11-29

ULPI GPIOs are set in usbd_conf.c which was generated by CubeMX. I don't see how the pins could be set wrong. My HW also uses same pins as CubeMX.If I enable core ULPI clock prior to resetting USB3343 the USB clock stops a bit later at USB_CoreInit()...

MAKA · 2023-11-29

I've used CubeMX for the mapping and all ULPI pins seem to be correct (USB_OTG_HS_ULPI_CK at pin29). All other peripherals I'm using (I2C, SPI, SAI) are working. Only USB HS / ULPI does not work.It seems most STM32H7 ULPI related problems posted in t...

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STM32H723VET6 ULPI problem

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