[Gmecm] Any USB developers out there?
Darren Freed
darrenfreed
Tue Nov 7 20:31:12 UTC 2006
Steve,
I was wondering how this project was coming along. I'm quite keen to get
experimenting with DLC comms, and am excited about the prospects of a full
speed-capable, open source interface! I don't know the first thing about
USB, but at least I can supply moral support! Keep up the good work!
I'd be happy to help with the software side once you have the hardware
working. I think I've got quite a bit of that figured out, and am anxious
to start experimenting.
Darren
On 11/7/06, Paul Smith <psmith at obdpros.com> wrote:
>
>
> >
> > Hi Paul. I have uploaded the project to the TWiki page:
> >
> > http://www.diy-efi.org/twiki/bin/view.pl/Gmecm/UsbVpw
> >
> > I think the problem is in hardware instead of software. I am testing
> > the board with a keyboard/mouse demo that is supposed to move the mouse
> > in a circle and send keystrokes. This firmware works on the PIC demo
> > board that I bought, but it doesn't work on my PCB. I ran usbview.exe
> > to see that most of the enumeration is correct except the last 4 items:
> >
> > my board demo board
> > ----------------------------------------------------------------
> > Current Config Value: 0x00 Current Config Value: 0x01
> > Device Bus Speed: Low Device Bus Speed: Full
> > Device Address: 0x00 Device Address: 0x01
> > Open Pipes: 0 Open Pipes: 1
> >
> > That stuff is clear as mud to me. The thing that stands out is the Bus
> > Speed. I don't know why my PCB shows up as Low while the demo board is
> > Full. I have checked the D- and D+ lines and the pullup is in the right
> > place.
> >
> > I am using the PIC18F2455. I posted to the microchip forums also and
> > got some suggestions but haven't found the answer yet. That thread is
> > here:
> >
> > http://forum.microchip.com/tm.aspx?m=185797
> >
> > thanks for any help,
> >
> > --steve
> > _______________________________________________
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> >
>
>
> I will start looking at this, I am currently working on a USB board so
> should be able to test out some stuff and find out what's wrong, give me a
> couple of days to look it over.
>
> Thanks
> Paul
> --
> www.obdpros.com
> Professional grade scantools
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