Thank You Dear Allon, I did not understan what is mean by return from ISR? The timer is not used for any other purpose and if functions as expected when configured for higher timer value but generates spurious interrupts for lower values. Still i am not able to solve this issue, please help me. Regards, Vinod
--- On Sun, 10/25/09, uclinux-dev-requ...@uclinux.org <uclinux-dev-requ...@uclinux.org> wrote: From: uclinux-dev-requ...@uclinux.org <uclinux-dev-requ...@uclinux.org> Subject: uClinux-dev Digest, Vol 78, Issue 16 To: uclinux-dev@uclinux.org Date: Sunday, October 25, 2009, 10:30 PM Send uClinux-dev mailing list submissions to uclinux-dev@uclinux.org To subscribe or unsubscribe via the World Wide Web, visit http://mailman.uclinux.org/mailman/listinfo/uclinux-dev or, via email, send a message with subject or body 'help' to uclinux-dev-requ...@uclinux.org You can reach the person managing the list at uclinux-dev-ow...@uclinux.org When replying, please edit your Subject line so it is more specific than "Re: Contents of uClinux-dev digest..." Today's Topics: 1. Problem:Spurious Interrupt on Coldfire................ (Vinod Nagare) 2. Re: Problem:Spurious Interrupt on Coldfire................ (Allon Stern) ---------------------------------------------------------------------- Message: 1 Date: Sun, 25 Oct 2009 00:05:34 -0700 (PDT) From: Vinod Nagare <vinodnag...@yahoo.com> Subject: [uClinux-dev] Problem:Spurious Interrupt on Coldfire................ To: uclinux-dev@uclinux.org Message-ID: <918801.13858...@web33504.mail.mud.yahoo.com> Content-Type: text/plain; charset="iso-8859-1" Dear Friends, I am using a custom build board using MCF5485 and uClinux 2.4.x ported on it. I am using General Purpose Timer (GPT), which is generating interrupts to CPU and an ISR is connected to this interrupt. When the timer is configured to generate interrupt for period 100ms the ISR is invoked every 100ms and functions properly. But when I configurs timer (GPT) to generate interrupt every 10ms following message is printed on console (connected to minicom) and the system starves and ISR is not invoked. Spurious interrupt 4488788 Spurious interrupt 4289755 .......................................... and such messages are printed continously..... Please help me to solve this problem as I need an ISR to be executed every 2ms. Thank You and regards, Vinod Nagare -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.uclinux.org/pipermail/uclinux-dev/attachments/20091025/ebb8e0e1/attachment-0001.html ------------------------------ Message: 2 Date: Sun, 25 Oct 2009 07:20:21 -0400 From: Allon Stern <allon.st...@argonst.com> Subject: Re: [uClinux-dev] Problem:Spurious Interrupt on Coldfire................ To: uClinux development list <uclinux-dev@uclinux.org> Cc: "uclinux-dev@uclinux.org" <uclinux-dev@uclinux.org> Message-ID: <3ff5a6eb-31dd-4a2b-9e7a-b7cacb71b...@argonst.com> Content-Type: text/plain; charset="us-ascii" On Oct 25, 2009, at 3:05 AM, Vinod Nagare <vinodnag...@yahoo.com> wrote: > I am using a custom build board using MCF5485 and uClinux 2.4.x > ported on it. I am using General Purpose Timer (GPT), which is > generating interrupts to CPU and an ISR is connected to this > interrupt. > > When the timer is configured to generate interrupt for period 100ms > the ISR is invoked every 100ms and functions properly. > > But when I configurs timer (GPT) to generate interrupt every 10ms > following message is printed on console (connected to minicom) and > the system starves and ISR is not invoked. > > Spurious interrupt 4488788 > Spurious interrupt 4289755 > .......................................... > and such messages are printed continously..... What is the return value from your ISR? Is the timer used for something else on the system, or is itnotherwise unused? Check the kernel code / drivers. These are first guesses. - allon -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.uclinux.org/pipermail/uclinux-dev/attachments/20091025/956b9380/attachment-0001.html ------------------------------ _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev End of uClinux-dev Digest, Vol 78, Issue 16 *******************************************
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