Accessing ULPI TX CMD Byte

[Kubica]

Hi,
we want to implement some low level things in USB. For this reason we need access to the ULPI TX CMD Byte. How can I access this byte in chibios? I work with the board stm32f746G.
Is the function "lld_serve_interrupt" in port STM32 the right place to look at the ULPI TX CMDs?

Thanks for help
Manfred

[Giovanni]

Hi,

The OTG driver does not do any low level ULPI accesses, it is all done by the OTG peripheral, you need to study the OTG documentation and see if/how this is possible.

Giovanni