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Re: need help on rom version redboot build


On Sun, 2004-07-11 at 16:44, Julie Tao wrote:
> Hi,
> 
> I built a rom version redboot for AT91R40870 based single board, then this
> redboot.elf was loaded by the JTag into the SRAM,
> after that, start gdb to connect to the target running redboot. When the
> hyper terminal was connected, there were print messages there:
> 
> RAM: 0x00@@@-0x00@@@, 0x00@@@-0x00@@@ available
> IMR(1) = 0x0000000@
> IMR(2) = 0x0000000@
> 
> RedBoot RedBoot RedBoot ... (forever loop!)
> 
> I have no idea what causing these wrong message!
> 
> Would you please point me how to fix this problem?

My first guess is that your JTAG load process missed something, quite
possibly some initialized data.  The fact that you get @@ on the first
line as opposed to some hex digits shows that the constant string used
to generate these data is incorrect.

Can your JTAG loader use Motorola S-record files?  If so, try loading 
that as we know that the tools will create a proper image.

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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