USB Bus Reset when running the CDC_MSC example (only CDC is enabled) on STM32U585OIYxQ custom board about tinyusb HOT 6 CLOSED

Please use stock (stm32u575-nucleo) example for testing, your setup has many external factors.

from tinyusb.

Hi @HiFiPhile , thank you for your answer. I don't have such a board. Are there some logs I can add in the stack that may help you?

from tinyusb.

Stock BSP only use few peripherals so most custom board should be compatible.
https://github.com/hathach/tinyusb/blob/master/hw/bsp/stm32u5/boards/stm32u575nucleo/board.h

Try increase freertos stack size, at the end tusb reinitialized itself probably after crash reset.

from tinyusb.

Are you talking about using the hooks implemented in freertos_hook.c? If this is the case, when you say "increase freertos stack size", are you talking about the IDLE task?

from tinyusb.

The USB Bus reset is not due to a crash, but because the GINTSTS_USBRST bit is set in the DWC2 gintsts register.
For some reason the Host decides systematically to reset the USB bus after the enumeration is done.

from tinyusb.

increase freertos stack size", are you talking about the IDLE task?

Not the idle task, but USB task where TUSB is running.

The USB Bus reset is not due to a crash

I'm talking about

USBD init on controller 0, Highspeed = 0
sizeof(usbd_device_t) = 45
sizeof(dcd_event_t) = 12
sizeof(tu_fifo_t) = 12
sizeof(tu_edpt_stream_t) = 24
``
which came only from `tusb_init()` which should only be called once in MCU init. So you are facing a crashing issue or usage fault 
as they are printed twice.

Close as it's not a TUSB issue.

from tinyusb.