Peter,

I understand what you are saying, but that assumes all of my custom board 
hardware is
working and that I have u-boot working already working.  I'm talking about the 
first time I attempt
to put u-boot (or any flash image) on the board; since my flash is different 
than that of the
DVEVM, how do I do that?  I can't use the DvFlasher as that was meant 
specifically
for the AMD28LV256 flash on the DVEVM.  TI told me that I have to modify the 
DVFlasher
code to work for my flash which can take me a while since there's no support.

Yeah, I understand if I have u-boot already working on my custom board, I'm 
pretty much
far along in bringing up my board.  That's why I wonder if anyone has tried 
using a
boundary scan tool to flash their brand new board (we have a boundary scan setup
expert) and not having to deal with writing software (DVFlasher) to flash the 
initial
u-boot image.

Regards,
Andy

----- Original Message ----
From: Peter Wippich <[EMAIL PROTECTED]>
To: Andy Ngo <[EMAIL PROTECTED]>
Cc: "davinci-linux-open-source @linux.davincidsp.com" 
<[email protected]>
Sent: Saturday, March 10, 2007 6:12:54 AM
Subject: Re: Using boundary scan tool to program NOR flash


Hi Andy, 

you may also try to boot the board over the UART and than use u-boot to 
flash your board. Worked fine for us. As long as your flash is CFI 
compliant this should work with nearly every flash chip. 

Ciao, 

Peter 

On Fri, 9 Mar 2007, Andy Ngo wrote:

> Hi,
> 
> Next week, our custom Davinci bread board will be in for me to start bringing 
> it up.  The memory parts (NOR flash, DDR)
> are different than those of the DVEVM.  I plan to use the XDS510 or XDS560 
> JTAG emulator to test those components
> first to make sure they work.  As for flashing the u-boot image, since the 
> NOR flash on our board is different than that 
> of the DVEVM, I can't use the FlashWriter (from Spectrum Digital) to program 
> the NOR flash.  A TI tech gave me the
> source code for the FlashWriter but said that the code is "poorly written" 
> and TI has no support for it so I'm on my own.
> 
> Well, in the past, we have use the Corelis boundary scan tool to directly 
> program the flash of most of our boards.  
> Has anyone try programming the flash on the DVEVM with a boundary scan tool 
> like Corelis or ASSET?  This will be 
> a lot easier than having to deal with the FlashWriter code.
> 
> How do you think I should approach this in bringing our board and flashing 
> u-boot?  Your advice is appreciated!  Thanks!
> 
> Regards,
> Andy


|       Peter Wippich                   Voice: +49 30 46776411          |
|       G&W Instruments GmbH            fax:   +49 30 46776419          |
|       Gustav-Meyer-Allee 25, Geb. 12  Email: [EMAIL PROTECTED]   |
|       D-13355 Berlin  / Germany                                       |





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