[OT] write flash on MPC5200 board via jtag

Mike Timmons mike_timmons at trimble.com
Wed Jul 23 07:55:41 EST 2008

If you don't have any code on the board then I can't think of how to write to the flash unless you have a JTAG device. I use a BDI2000 to do precisely what you're doing: write U-boot into virgin on-board flash on a design derived from the lite 5200.

The significance of the debugger is that you need something that can drive the microcontroller via the JTAG port and control the flash device write intricacies.

Pre-programming your flash device is another option.

-----Original Message-----
From: linuxppc-embedded-bounces+mike_timmons=trimble.com at ozlabs.org [mailto:linuxppc-embedded-bounces+mike_timmons=trimble.com at ozlabs.org] On Behalf Of Albrecht Dreß
Sent: Tuesday, July 22, 2008 1:57 PM
To: LinuxPPC Embedded
Subject: [OT] write flash on MPC5200 board via jtag


sorry for a somewhat off-topic question...

I want to design a mpc5200b board which is roughly derived from  
Freescale's 5200B Lite demo.  Obviously, I have the problem to  
initially write u-boot into the boot nor flash.  I believe this would  
be possible using the jtag/bsm interface (is that true?).

Can you recommend any good hardware and software solution for that, if  
possible running on linux (OSS?)?  I don't need a "real" debugger  
(maybe an interface to gdb), just something to write the flash, so  
u-boot comes up.

Thanks for any help,

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