Re: [microblaze-uclinux] Bad page state in process

[Michal Simek <monstr@xxxxxxxxx>]

Hi Giulio,

U-BOOT provides these advanced tests.

Just enable #define CFG_ALT_MEMTEST in config file and look to common/cmd_mem.c
to do_mem_memtest function.

mONStR's U-BOOT> mtest 20000000 20001000
Testing 20000000 ... 20001000:
Iteration: 147009

Can you please test it on your bad design?
If you miss any test please send it.

Cheers,
Michal


> I finally resolved my problem.
> 
> It was a design issue in an incorrect setting in SDRAM parameters
> (column width).
> It was causing RAM being overwritten by different adresses.
> 
> It was not showing up in my simple RAM test because I was testing RAM
> alternating a write and a read. It would have been more helpful writing
> the whole ram with a known sequence of data and reading it back.
> 
> Many thanks for your help.
> Giulio Mazzoleni
> 
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