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igor2
igor2
Associate
September 14, 2016
Question

STM32F469II USB

  • September 14, 2016
  • 1 reply
  • 508 views
Posted on September 14, 2016 at 21:57

Hi

I am attempting to develop application on STM32F469II that utilizes USB CDC.

On our HW board, i am able to run STM CubeMX CDC Standalone example.

But we are using Keil toolchain, and when running Keil based example - i am not even geting USB RESET (

USBRST

). I have exactly the same clock configuration (copied SystemClockUpdate) function from Cube to Keil...

What can be a reason for such a behavior where even USBRST is not happening?

We are using FS mode of USB and CDC Device configuration

Keil driver for USB is 6.8.0

Appreciate any help...

Igor
    This topic has been closed for replies.

    1 reply

    Walid FTITI_O
    Walid FTITI_O
    Visitor II
    September 16, 2016
    Posted on September 16, 2016 at 10:07

    Hi igor.igor.002,

    Is there any warning or error message ? (the USB wouldn't enumerate then ?)

    Have you checked the USBRST bit in the OTG_FS_GINTSTS register ?

    As a test for your hardware, try to run a ready to use example in the STM32Cube and see if it works .

    -Hannibal-

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