Skip to main content
gary2399
gary2399
Associate II
January 26, 2009
Question

Another USB Device Not Recognized question/situation

  • January 26, 2009
  • 1 reply
  • 504 views
Posted on January 26, 2009 at 19:49

Another USB Device Not Recognized question/situation

    This topic has been closed for replies.

    1 reply

    gary2399
    gary2399Author
    Associate II
    May 17, 2011
    Posted on May 17, 2011 at 13:00

    Hello,

    So I am running the Mass Storage Demo and have successfully loaded it to the STM3210E-EVAL board and have been able to detect the Eval board as a mass storage device.

    However, after downloading to flash onto my project board (with an STMF103RE device), the USB Device is never recognized like that on the Evaluation board. I have the USBDP signal tied high, BOOT0 and BOOT1 both tied low.

    I was wondering what I need to take into account (when switching to the 64 pin RE package) to detect this device as whatever the USB device descriptor is defining it as, in this case, a mass storage device for this example. I'm assuming the microSD card interface that is on the EVAL board is not needed to still detect this as a mass storage device?

    When looking within the calls in the main.c file in this example project, I thought it may have been the USB_Disconnect_Config() function in hw_config.c, where ''USB Disconnect Pin used as USB pull-up'' might have been defined as the pull up on D+, so i set the corresponding pins to enable GPIOA Pin 11, although this had no effect.

    Any direction on this matter would greatly be appreciated, thank you.

    Terms & ConditionsAccessibility statement