From: "jiang jet" <jetjiang@hotmail.com>
To: neeraja.kothala@gmail.com
Cc: ecos-discuss@ecos.sourceware.org
Subject: RE: [ECOS] How to handle IRQ0 interrupt?
Date: Fri, 09 Mar 2007 00:19:00 -0000 [thread overview]
Message-ID: <BAY137-F22740B3E4F6F77B4F47F76DF780@phx.gbl> (raw)
In-Reply-To: <9372163.post@talk.nabble.com>
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>From: Neeraja <neeraja.kothala@gmail.com>
>To: ecos-discuss@ecos.sourceware.org
>Subject: [ECOS] How to handle IRQ0 interrupt?
>Date: Thu, 8 Mar 2007 02:34:26 -0800 (PST)
>
>
>Hi,
> I am working on at91rm9200 board. I want to catch the interrupt when
the
>button is pressed which is connected to IRQ0 line.
> But what is happening is that when I run the application the interrupt
isr
>is being called always irrespective of the button press.
>
>Can anyone suggest me how to configure so that the interrupt comes only
when
>the button is pressed ?
>
I think it's hardware related..you have to assign interrupt number 0 to
indicate the press of button
>Here is the part of the code I am using
>
>interrupt = CYGNUM_HAL_INTERRUPT_IRQ0;
>cyg_interrupt_create(interrupt,
> 0, // Priority - what
goes
>here?
> (cyg_addrword_t)0, // Data item passed
to
>interrupt handler
> (cyg_ISR_t *)IRQ0_isr,
> (cyg_DSR_t *)IRQ0_dsr,
> &interrupt_handle,
> &interrupt_object);
>
>cyg_interrupt_attach(interrupt_handle);
>cyg_interrupt_acknowledge(interrupt);
>cyg_interrupt_unmask(interrupt);
>
>Thanks,
>Neeraja.
>
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>Sent from the Sourceware - ecos-discuss mailing list archive at
Nabble.com.
>
>
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prev parent reply other threads:[~2007-03-09 0:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-08 10:34 Neeraja
2007-03-08 17:38 ` Paul D. DeRocco
2007-03-09 12:55 ` [ECOS] " Neeraja
2007-03-08 17:40 ` [ECOS] " Andrew Lunn
2007-03-09 0:19 ` jiang jet [this message]
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