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Last Post 06 Jul 2005 03:45 PM by  ericn@logicpd.com
Running from user flash
 4 Replies
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jkinross
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Posts:2


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22 Apr 2005 09:08 AM
    Hello,

    I have a simple application that I can run from boot flash but not user flash.

    I convert the elf file to raw with objcopy and I can move it any where in boot flash (0xFF80-0000) with LoLo's load and burn commands and at the dBug prompt type go <addr> and it runs fine.

    As soon as I move it to user flash (0xE000-0000) and type go <addr> the dBug hangs. I've tried changing my memory map without success.

    Also using exec or jump from LoLo hangs LoLo as well, regardless of the flash device.

    I am using Metrowerks with ARC.

    - Jeff
    Anonymous
    Posts:


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    09 Jun 2005 10:33 AM
    jkinross,

    Have you had a chance to refer to this FAQ?

    http://www.logicpd.com/su...q/faq.php?faq_id=107

    This has cleared up a lot of customer issues that revolve around problems with user flash. Have you had success if solving this issue?

    Regards,
    hwang
    New Member
    New Member
    Posts:


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    20 Jun 2005 02:07 PM
    Hi Jeff,

    I just saw your email regarding the user flash program, have you already solved
    the problem ? if yes, can you tell me how do you solve this problem ? since
    I also have the exact the same problem.

    thanks

    howard

    my email: hwang@circadiant.com
    Anonymous
    Posts:


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    21 Jun 2005 11:24 AM
    Hello Howard,

    Please refer to this FAQ and post back here regarding whether or not this solves the user flash issues that you are seeing:

    http://www.logicpd.com/su...q/faq.php?faq_id=131

    Thanks,
    ericn@logicpd.com
    New Member
    New Member
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    06 Jul 2005 03:45 PM
    Jeff, Howard,

    I saw your postings & went to check this out. At first, I had the same problem. I saw that my values for configuring the chip select registers (especially chip select 1) were correct. However, I would set CSCR1 register in several successive writes. The problem is, in between each write the chip CSCR1 register is only partially configured. I had to re-write my test code to figure out the CSCR1 register in a temporary location, and then write the CSCR1 register once with all the bits configured correctly. After doing this I could run from the second flash device without issue.

    Could your problem be similar???

    Eric Nelson

    Forums Freescale / NXP SOMs and Development Kits M54xx EVB ColdFire Development Kit
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