Re: [ECOS] processor hangs at 'hal_mon_init'

[Rohit Pandita <pandi008@umn.edu>]

Hi Bob,
I've got it, the problem was with memory layout, it's working now. 
Thanks for pointing in the right direction.
Can you also suggest where eCos compatible API/ libraries be found for 
MIOS, TPU. Thanks.

Rohit

Bob Koninckx wrote:
>> Hi,
>> - using ROM startup, CYGSEM_HAL_USE_ROM_MONITOR not included (RedBoot 
>> set to behave as ROM monitor)
>> - error occurs at instruction 'STWU R0,0004(R4)' in hal_mon_init.
>> Before execution: R0=7C71 43A6, R4=FFFF FFFC
>> After: -no change-
>>
>> Why is it trying to write to a ROM location (0000 0000) when VSR table 
>> should be copied to RAM, if I understand correctly
> 
> That's what you have to find out. Probably your memory layout is not
> correct or the memory controller is not configured correctly. Did you
> initialize the memory controller ? (see e.g file ec555.S for an example
> of how you should do this). Is your RAM supposed to be at address
> 0x00000000 ? 
> 
> Bob
> 
> 
> 


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Rohit Pandita
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