Search

Technical Discussion Group Forum

This forum is provided for user discussion. While Beacon EmbeddedWorks support staff and engineers participate, Beacon EmbeddedWorks does not guarantee the accuracy of all information within in the Technical Discussion Group (TDG).

The "Articles" forums provide brief Articles written by Beacon EmbeddedWorks engineers that address the most frequently asked technical questions.

To receive email notifications when updates are posted for a Beacon EmbeddedWorks product download, please subscribe to the TDG Forum of interest.

TDG Forum

PrevPrev Go to previous topic
NextNext Go to next topic
Last Post 17 Jun 2008 09:19 AM by  MarkH
USB Host2 Controller issue with WinCE 5.0
 0 Replies
Sort:
You are not authorized to post a reply.
Author Messages
MarkH
New Member
New Member
Posts:


--
17 Jun 2008 09:19 AM
    I am using the SOM-LV i.MX31 with Windows CE 5.0.
    I have all the latest QFE's for ARM, and LogicPD's WinCE 5.0 BSP.
    I am not new to WinCE development.

    This is my first time using Logic's board, but using Lolo 2.4.0, I had built up an image that I could download via Ethernet and run in very little time. I think the documentation was excellent, and things were going well.

    I am writing a USB Host Class driver for a custom device. This device enumerates fine when connected to a Windows XP system, or even a different Windows CE platform running on an i.MX31 (Freescale dev kit).

    However, when my custom device is plugged in to the SOM-LV, the device fails enumeration,
    and neither the USBD bus driver nor my driver get loaded.

    I am using Logic's Host2 Controller driver 'lpd_imx31_usb2h_imx31_50_1_0_0.dll'
    v1.0.0 (First Production release).

    More details:

    Basically, the device responds to bus resets and address 0 , but when issuing the Set Address command, the host does not wait.

    I can see the failure at step: 'DEVICE_CONFIG_STATUS_SCHEDULING_GET_INITIAL_DEVICE_DESCRIPTOR'.

    Now, if I enable verbose debug output for CPhysMem debug zone on that module, there is so much output that the system slows enough such that the device completes enumeration; the 'USBDeviceAttach' routine is called in my driver, and I am able to proceed with developement, albeit with unwiedly debug statements.

    Since the driver is binary-only in the BSP, I am unable to do anything myself in the Host Controller driver.

    Is there anything that be done with LogicPD's Host2 Controller driver to correct this issue?

    Thank you.
    You are not authorized to post a reply.