[uClinux-dev] Kernel Panic with Blackfin Processor

amol sukerkar amol.sukerkar at gmail.com
Thu Oct 13 11:27:25 EDT 2005


Hi Phil,
 I forgot to add, I am using BF532 platform.
 Cheers
Amol

 On 10/13/05, amol sukerkar <amol.sukerkar at gmail.com> wrote:
>
> Hi Phil,
>  Thanks for the reply. I am using kernel 2.4.20-8 with uClinux. Although I
> am using uClinux files, I use VisualDSP++ to compile and port it on the
> target.
>  Also, you are right when you say the NMI interrupt exception occurs when
> I plug in the usb device. Could you tell me how I can deal with this?
>  Thanks.
>  Cheers
> Amol
>
>
>  On 10/12/05, Phil Wilshire <pwilshire at cox.net> wrote:
>
> > Hi
> > Some more details please
> >
> > Which version of tools and uClinux are you using ?
> >
> > Which Blackfin platform ?
> >
> > Exception 2 is probably the NMI interrupt.
> > Does the hardware you are using cause an NMI when the USB device is
> > plugged in ?
> >
> > Regards
> > Phil Wilshire
> >
> >
> >
> >
> >
> >
> > amol sukerkar wrote:
> >
> > Hi,
> > I am trying to implement a ti_usb_serial driver(Texas Instrument modem)
> > on Blackfin Processor. The driver compiles in the kernel without any problem
> > (although I had to change usb_fill_bulk_urb to FILL_BULK_URB to match my
> > version of usb.h, which I don't want to change).
> > The kernel boots without any problem on the target. However, as soon as
> > the Texas Instrument modem is plugged in the usb port, I get an error
> > message. The message is like:
> > .
> > .
> > .
> > Exception: IRQ 0x2 entered.
> > .
> > .
> > .
> > .
> > .
> > Kernel panic: unhandled IRQ or exceptions!
> >
> > I am not able to understand what causes the IRQ conflict. Can anybody
> > address this issue? Thanks.
> >
> > Cheers
> > Amol
> >
> > ------------------------------
> >
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