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Re: [microblaze-uclinux] Problem downloading kernel
On Apr 8, 2005 8:38 PM, Kristian Chaplin <kristian.chaplin@xilinx.com> wrote:
> Hi Bertrand,
>
> If the memory test passes, that's great - odds are that the memory is
> ok. However, please do check your PAR report to ensure that all
> constraints are met.
I checked it. It makes a warning saying that some contraints have not
been met. Should I worry about them if it's just a warning?
>
> Can you confirm, you just use dow -data <file> <address> and then you
> cannot mwr and mrd? You are not running "run" or "con" before the
> mrd's?
Yes, I'm sure it's directly after the "dow" command because I already
tried to read memory in order to compare with the content of
image.bin, but I couldn't access it.
>
> How big is the memory, and how big is the binary image?
>
image.bin is 1,4MB, and I have 32MB of DDR SDRAM.
> It would be worth extending the memory test to exercise all of the
> memory that is going to be accessed by the download, just to be
> thorough.
I should check in the documentation if
XUtil_MemoryTest32((Xuint32*)XPAR_DDR_SDRAM_16MX16_MEM0_BASEADDR,
1024, 0xAAAA5555, XUT_ALLMEMTESTS) (one of the executed tests) cover
all the memory or just a part of it. I'll try to test this asap
(unfortunately I have no access to the board until sunday).
Thanks for your help!
Bertrand
>
> Best regards
>
> Kris
>
> --
> ------------------------------------------------------------------------
> ----
> / /\/ Kris Chaplin
> \ \ Application Engineer - Embedded Processors
> / / Xilinx Europe
> \_\/\ +44 (0)870-7356-563
>
> -----Original Message-----
> From: owner-microblaze-uclinux@itee.uq.edu.au
> [mailto:owner-microblaze-uclinux@itee.uq.edu.au] On Behalf Of Bertrand
> Rousseau
> Sent: 08 April 2005 10:46
> To: microblaze-uclinux@itee.uq.edu.au
> Subject: Re: [microblaze-uclinux] Problem downloading kernel
>
> On Apr 8, 2005 5:28 PM, Kristian Chaplin <kristian.chaplin@xilinx.com>
> wrote:
> > Hello Bertrand,
> >
> > It is vital to ensure that the system is "known good" before starting
> > out trying to run uclinux on the board.
> >
> > Have you tried the testapp application that gets built when you run
> the
> > Base System Builder?
>
> Yes I did, it tests the memory and return "PASSED" to every test, so I
> supposed it is alright. Do you have advise concerning the testing of
> the platform? Until now I only made use of theses "builtin" tests.
>
> >
> > I see you are running at 100 MHz. It would be worth checking that the
> > timing is met also.
>
> Maybe I should try to lower the frequency. I just used the default
> value provided by BSB.
>
> >
> > Once you download the binary to the target, does the memory contents
> > look reasonable when you command XMD with the MRD and MWR commands?
>
> Well, when the binary (I mean the "testapp" application) is first
> downloaded, I can use the mrd and mrw commands on my systems, and it
> works fine. But once the kernel has been downloaded with the 'dow
> -data ...' command, I'm unable to use these commands anymore, xmd
> always answer "operation not supported", so I suspect that the
> download corrupts my hardware design, even I don't have any proof of
> that.
>
> Bertrand.
>
> >
> > Best regards
> >
> > Kris
>
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>
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