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- Re: Freescale USB Stack with Freedom board 'Device not recognised'
Freescale USB Stack with Freedom board 'Device not recognised'
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Freescale USB Stack with Freedom board 'Device not recognised'
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Hi guys,
I've recently picked-up a copy of Freescale's USB Stack 4.0.3 and am attempting to generate a project with Processor Expert for the Freedom KL25Z.
I'm actually generating a Keil project so my Compiler is set to Keil C/C++ and I'm generating a project with the Keil Eclipse plugin as in this video:
Processor Expert: Integrating with Keil Microvision - YouTube
I'm also modifying 'asm' command errors that crop up in the USB stack to '__asm' to correct for armcc syntax.
My project consists of the default CPU component and a HID component, attempting to be a generic HID device. I've tweaked settings for this component every which way, I've double-checked CPU clock and USB hardware components, however, whenever I connect the Freedom, Windows says 'device not recognised' and via USBView further elaborates to say 'Device Failed Enumeration'.
When debugging, connecting the device successfully triggers the USB_APP_BUS_RESET event via the associated callback, however I'm not seeing any activity beyond this.
As I'm new to USB and indeed Freescale products, I suspect this is a newbie error. I've attached a sample project below and would greatly appreciate any insight some kind soul may have to offer.
Many thanks
Original Attachment has been moved to: ProgDog.rar.zip
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Still stumped on this. Has no one had working USB HID on Freedom via Processor Expert?
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Does it have to be HID, or might CDC work? What are you trying to connect to?
Have you tried using CodeWarrior instead of Keil for a very basic connection? Perhaps getting working in one IDE will lead you to figure out how to do it in another?
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It's ultimately going to be MSD + HID, it needs to be idiot proof Plug n Play, the app itself will run straight off the mass storage in OS-friendly Java with no install. I've considered CDC but it just doesn't quite fit the bill.
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Alistair,
Are MSD+HID working better for your project?
Let us know! :smileywink:
Regards!
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Apologies for the very late response, ultimately I moved to using the paid-for Keil MDK-PRO USB library.
Had everything working within 10 minutes with no issue. Depending on how you price your own time, sometimes it's worth placing forward the money it seems.
