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RE: [microblaze-uclinux] Re: Invalid SREC Image

Hi Pablo,

Glad to help.  I tried a lot of different things to try and get the VM to work.  In the end, I repartitioned my hard drive, installed linux on a separate partition from windows, and then used my laptop with both windows and linux (dual boot).

Matt

-----Original Message-----
From: pcolodron@xxxxxxxx
Sent: Wednesday, March 04, 2009 1:06 AM
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] Re: Invalid SREC Image

Hi Matt,

Thanks a lot for your help. I'm experiencing the same problem that  
you've said. I am using a VM and I'have tested the serial port as you  
told me. You were right! The buffer is dropping bits and the u-boot  
file is not send correctly, so now I know what's wrong.

However I am not sure about how you solved this problem. You mentioned  
that you switched to a dual boot system. Do you mean that you were not  
using fs-boot and u-boot together? I am sorry about not understanding  
too much about this..

Thanks a lot again Matt,

Kind regards,

Pablo



Matt Staniszewski escribió:
> Hi Pablo,
>
> My problem was that I was using a Linux VM with a virtual serial   
> port.  I found out the problem after testing the serial port using a  
>  loopback (short pins 2 and 3) on the cable and try the following in  
>  2 separate terminal windows:
>
> Terminal Window 1:
> cat somefile > /dev/ttyS0
>
> Terminal Window 2:
> cat /dev/ttyS0
>
> Where 'somefile' is any file you choose to send over the serial port  
>  (i.e. u-boot.srec).
>
> In my case, the buffers for the virtual serial port were dropping   
> bits when they filled, so the input and output from the 2 terminals   
> differed greatly. In the end, I switched to a dual boot system, and   
> I haven't had a problem since.
>
> Hope this helps.  Even if you're not using a VM, I'd test the serial  
>  port with the loopback.
>
> Good luck!
>
> Matt
>
>
>
> On Tue, Mar 3, 2009 at 04:03, <pcolodron@xxxxxxxx> wrote:
>
>     Hi,
>
>     Has anybody found out how to solve this error? I am facing the same
>     problem and I couldn fix it. What I obtain when I download the file
>     u-boot.srec is the following:
>
>     FS-BOOT: Waiting for SREC image....
>     DEBUG:SREC Type:0
>     DEBUG:Line Length:32
>     DEBUG:Load Address:0x0
>     DEBUG:Binary Length:11
>     DEBUG:SREC_START:0x0
>     DEBUG:SREC Type:99
>     DEBUG:Line Length:0
>     DEBUG:Load Address:0x0
>     DEBUG:Binary Length:11
>     DEBUG:SREC Type:-1
>     DEBUG:Line Length:36
>     DEBUG:Load Address:0x8FFC0000
>     DEBUG:Binary Length:16
>
>     FS-BOOT: Invalid SREC!
>     FS-BOOT: Image download failed.
>     FS-BOOT: Please reset target.
>
>
>     I have already checked that nobody else is accessing this port and the
>     .kermrc file is the same as the one which appears in the   
> petalogix webpage.
>
>     I think there is a problem related with the .srec file. My file   
> has the following structure:
>
>     S00E0000752D626F6F742E73726563C0
>     S3158FFC00009400C001B0008FF6202000002021FFFC59
>     S3158FFC0010B0008FFD20A05738B0008FFD20807498DC
>     S3158FFC002014C52001BC060014F805000020A50004A9
>     (it continues with similar lines...)
>     .
>     .
>     .
>     .
>     (and it ends like this)
>     S3158FFD57088FFD3CA800000010000000018FFC875814
>     S3158FFD57188FFD3CB08FFD3CD08FFD3D0C0000000109
>     S3158FFD5728000000018FFC87248FFD3D1400000000CB
>     S7058FFC00006F
>
>     I've had a look at the files fs-boot.c and srec.c and the   
> structure of my file u-boot.srec looks fine buf who knows.
>
>     It would be fantastic that you could give me some advices.
>
>     Thank you very much in advance.
>
>     Kind regards,
>
>     Pablo Colodron.
>
>
>
>
>     Yeoh Chun Yeow wrote:
>
>         Dear all,
>
>         I have tried to download the SREC image of U-boot but   
> encounter the  following errors:
>
>         =================================================
>         FS-BOOT First Stage Bootloader (c) 2006 PetaLogix
>         =================================================
>         FS-BOOT: System initialisation completed.
>         FS-BOOT: No existing image in FLASH.  Starting image download.
>         FS-BOOT: Waiting for SREC image....
>         DEBUG:SREC Type:0
>         DEBUG:Line Length:32
>         DEBUG:Load Address:0x0
>         DEBUG:Binary Length:11
>         DEBUG:SREC_START:0x0
>         DEBUG:SREC Type:99
>         DEBUG:Line Length:0
>         DEBUG:Load Address:0x0
>         DEBUG:Binary Length:11
>         DEBUG:SREC Type:-1
>         DEBUG:Line Length:18
>         DEBUG:Load Address:0x27FFC000
>         DEBUG:Binary Length:16
>
>         FS-BOOT: Invalid SREC!
>         FS-BOOT: Image download failed.
>         FS-BOOT: Please reset target.
>
>         Is that my U-Boot image is corrupted? Please advice.
>
>
>     a.) if you think the u-boot.srec is corrupted, just open it in the
>     editor. It is a textfile, and most lines should have the same lengths
>     (not the first few and the last)
>
>     b.) It looks more like a problem with your serial connection. Did you
>     check, that nobody else is accessing this port ? (minicoms,   
> gettys, ect ?)
>
>     c.) did you use the kermc file which is proposed on the petalogix
>     webpage ? Probably something is wrong on your kermit or line setup ?
>
>     Hope it helps
>
>
>
>
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>     Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
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> http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/
>
>




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