AnsweredAssumed Answered

USB Host CDC: stuck at HOST_CLASS_REQUEST, please help!

Question asked by Pilot B on Apr 16, 2018
Latest reply on Apr 17, 2018 by Pilot B

Hello everyone,


I'm working on STM32F407-DISC board, trying to get USB Host CDC working. I'm using library version 2.2.0.

I managed to get enumeration working by fixing HSE_VALUE to be 8M and PLL_M to be 8(thanks the info from Clive One) .


Now I'm stuck at HOST_CLASS_REQUEST state: it always return USBH_BUSY. Someone mentioned to fix the "dynamic memory"(Cube USB Library ). But that is for Cube library. I'm using the SPL library. Does anyone know how to fix it?


Please let me know if you know anything.