RE: [microblaze-uclinux] xmdstub

[Wade.Maxfield@xxxxxxxxxxxxxxx]

Hi Kevin,

  I've made some progress and had some more failures, under the Xilinx 8.1
EDK toolset.

  Using the gui, I did indeed mark it to init the BRAM using xmdstub.

  However, the files don't exist to generate xmdstub.elf.

  I found some of the xmdstub source  files in a ZIP file included in the
Xilinx documentation, so I put them in the microblaze_0/code directory.

  That worked, and the project compiled and built the stub and downloaded
it to the target.  But that is not the end of the story.

   The XMD debug options via the gui only let me choose Simulator, not
Stub, so that is totally useless.  Is there a way to configure the debugger
using a command line to force it to use the stub?  I've not yet gotten that
far, as the next thing that happened to me was very frustrating.

    When I went back to my software project and marked it to initialize the
BRAM instead of xmdstub, the EDK deleted the contents of the
microblaze_0/code directory for me!!!!!!    Therefore I can't get back to
the xmdstub (which I can't select in the gui) unless I pull those files
back out of the EDK example zip file and drop them in the directory.

    You'll have to forgive my lack of understanding. A hardware engineer
gave me this project to write code to, and I'm just now learning the Xilinx
EDK, as is he. Has anyone solved this same type of issue with 8.1 or in
general?  I haven't found references to this in google search of the
microblaze-uclinux list or a search the Xilinx site, or in the Xilinx
documentation I've searched.

thanks,
wade




Hello Wade,

| From: owner-microblaze-uclinux@xxxxxxxxxxxxxx
| [mailto:owner-microblaze-uclinux@xxxxxxxxxxxxxx] On Behalf Of
| Wade.Maxfield@xxxxxxxxxxxxxxx

| Hi,
|
|    I'm trying to download xmdstub.elf to a xilinx target so I
| can debug
| some bitram resident bootstrap code which will program my microblaze
| uCLinux into flash on a custom target.

How are you trying to do this?  At a command line or from the GUI.  I
believe the xmdstub.elf file can only downloaded as part of the
configuration bitstream and as such it has to be marked for initialize
bitstream in the applications area.  Please correct me if I'm wrong.

|    unfortunately, the Xilinx Platform studio says that it
| can't make the
| target xmdstub.elf due to "no rule".  the microblaze_0/code/
| directory is
| totally empty.

The "no rule" sounds like you don't have the xmdstub marked to init the
bram.

Sorry I'm not much help here.  I don't quite understand what you're doing
to
get where you are.

./ks




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