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From: Arun C <arunedarath@mistralsolutions.com>
To: "Syed Mohammed, Khasim" <khasim@ti.com>, linux-omap@vger.kernel.org
Subject: RE: Problem with configuring the LCD in VGA mode
Date: Mon, 10 Mar 2008 18:50:10 +0530	[thread overview]
Message-ID: <1205155210.3632.29.camel@localhost.localdomain> (raw)
In-Reply-To: <7EAD1AEEA7621C45899FE99123E124A0017B15EC@dbde01.ent.ti.com>

On Mon, 2008-03-10 at 18:13 +0530, Syed Mohammed, Khasim wrote:
> > > The FIFO settings needs to be adjusted as well, the difference between
> > upper and lower threshold can be made equal to burst size. And keep the
> > high threshold to 0xff.
> > >
> > This is matching in my case( burst = 16 X 32 , high= 0xFF ,low =0xC0)
> > 
> 
> Which processor are you using? For 2430 case it can be 0xFF and 0xC0, for 3430 the FIFO size extends to 0x3FF and 0x3C0 (default values).
> 
> What is the make of LCD? Have we used this before on any OMAP boards?
> 
> What is the DDR frequency?
> 
> Regards,
> Khasim
> 

I am using 2430 custom board. 

Yes my lcd works fine in QVGA resolution

DDR is at 110Mhz(L3 clock)

The interesting thing is that  IRQ error messages increases with the
pixel clock ie, only lower pixel clocks( 5Mhz ,6 Mhz etc) are seems to
be stable on my board.



Regards,
Arun c 



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  reply	other threads:[~2008-03-10 13:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-08 10:46 Problem with configuring the LCD in VGA mode Arun C
2008-03-10  8:12 ` Syed Mohammed, Khasim
2008-03-10 10:42   ` Arun C
2008-03-10 12:43     ` Syed Mohammed, Khasim
2008-03-10 13:20       ` Arun C [this message]
2008-03-10 15:16         ` Syed Mohammed, Khasim

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