my platform is STM32F446, it play as a USB host at full speed, and the pins are PB14 PB15.
I use ST USBH library to implement a USB AOA class.
But I found that everytime when the MCU try to send a Setup transfer and DATA0 transaction, the DATA0 is corrupted.
from logic analyzer we seen below, the DATA0 bit number is wrong.
further more, there are 20+ bits 170us later.
if we are able to link them together, its an unbroken transection.
for this season, program USBH_HandleControl goto CTRL_ERROR, and finally make a reset. And this happen over and over.
Anyone can help me? it border me a lot. Thanks very much!
