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Bootloader problem in ARM926ejs

F Girault
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  • Note: This was originally posted on 28th June 2011 at http://forums.arm.com

    Hi again.
    The problem seems to be coming from a bug in the program that loads the application to flash. I tried to write the application by another way, and it worked properly. I also tried to load the data directly to RAM from the serial port in the starter, and again it worked properly.
    I am guessing that the bug is not obviously changing all data, but only occuring on particular cases, and without affecting the checksum. Maybe it is inverting bytes sometimes, and since the checksum is just a sum, that goes undetected.
    Thank you for your answers, it helped to eliminate some interrogations.

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  • Note: This was originally posted on 28th June 2011 at http://forums.arm.com

    Hi again.
    The problem seems to be coming from a bug in the program that loads the application to flash. I tried to write the application by another way, and it worked properly. I also tried to load the data directly to RAM from the serial port in the starter, and again it worked properly.
    I am guessing that the bug is not obviously changing all data, but only occuring on particular cases, and without affecting the checksum. Maybe it is inverting bytes sometimes, and since the checksum is just a sum, that goes undetected.
    Thank you for your answers, it helped to eliminate some interrogations.

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