Re: LPC2888 USB2.0 Device Not Recognized by WinXP host | LPC2000

Hi Paisan,

Can you please let me know, if you have the LPC2888 working as a USB device on Windows.

Somehow, i have been trying to do that for past couple of weeks, and haven't been successful. Is there anything in the startup file or any other file in NXP code bundle that you need to change to make it working.

Pls help me out.

With regards,
Prashant
Hi,
>Are there any flags, #defines or other switches in the NXP
>code.bundle.lpc288x.zip that have to be changed to get the USB portion
>functioning?
>
>I'm developing the USB communications via the LPC2888 for our hardware
>project. I'm working with the Nohau LPC2800 Evaluation Board and have
>ported the USBMem code from the Keil-based code.bundle.lpc288x.zip NXP
>provided to compile and link in the ImageCraft ICC v7.08B for ARM.
>
>The code executes and Windows XP attempts to communicate with it, but
>gives up and pops up a balloon dialog stating "USB Devioce Not
>Recognized". WindowsXP looks like it is performing enumeration by
>issuing resets and sending SETUP packets requesting the device
>descriptor. The USB sniffer, "Beagle", sees initial USB traffic to
>Address 0 Endpoint 0 as should occur during enumeration. I even see
>ACK, DATA0, DATA1 and NAK exchanges. But I never see the device
>descriptor being returned from the LPC2888 running the USBMem program
>from code.bundle.lpc288x.
>Thanks,
>Paisan
>
>------------------------------------
------------------------------------

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Discussion Groups | LPC2000 | Re: LPC2888 USB2.0 Device Not Recognized by WinXP host

Re: LPC2888 USB2.0 Device Not Recognized by WinXP host - Pras...@gmail.com - Nov 4 3:21:54 2009