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Furuya
 Post subject: Program external flash memory through JTAG
PostPosted: Thu Jul 01, 2010 11:54 pm 
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Joined: Tue Sep 29, 2009 1:14 pm
Posts: 9
Location: Sao Paulo/Brazil
Hi,


I have a board with an external flash (Atmel AT45FB321) connected to a AT91SAM7X256.

That external flash has a SPI interface and it's connected to the SPI ports of the microcontroller.

  • Is it possible to program that flash through the microcontroller JTAG?
  • Does anyone have a OpenOCD script for the AT45DB321?

I've made a quick search in google and I found that OpenOCD has commands for programming external flash but I'm clueless at the moment.
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JPMORENO
 Post subject: Re: Program external flash memory through JTAG
PostPosted: Fri Jul 16, 2010 11:24 am 
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Joined: Tue Feb 24, 2004 6:27 pm
Posts: 161
Hi,

You can use the AT91-ISP (SAM-BA) solution provided by Atmel.
There is a DataFlash mounted on their SAM7X-EK (AT45DB321) so the applet is already available!

Rgds
JP
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