topic Re: Freescale USB Stack with Freedom board 'Device not recognised' in Processor Expert Software

Freescale USB Stack with Freedom board 'Device not recognised'

gmscribe — Mon, 11 Feb 2013 21:23:13 GMT

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

Re: Freescale USB Stack with Freedom board 'Device not recognised'

gmscribe — Fri, 15 Feb 2013 16:32:39 GMT

Still stumped on this. Has no one had working USB HID on Freedom via Processor Expert?

Re: Freescale USB Stack with Freedom board 'Device not recognised'

injunear1 — Sat, 16 Feb 2013 22:02:24 GMT

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?

Re: Freescale USB Stack with Freedom board 'Device not recognised'

gmscribe — Sat, 16 Feb 2013 22:32:48 GMT

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.

Re: Freescale USB Stack with Freedom board 'Device not recognised'

Monica — Thu, 21 Feb 2013 22:55:03 GMT

Alistair,

Are MSD+HID working better for your project?

Let us know! :smileywink:

Regards!

Re: Freescale USB Stack with Freedom board 'Device not recognised'

gmscribe — Sun, 28 Apr 2013 09:09:04 GMT

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.