From: John Williams <jwilliams@xxxxxxxxxxxxxx>
Reply-To: microblaze-uclinux@xxxxxxxxxxxxxx
To: microblaze-uclinux@xxxxxxxxxxxxxx
Subject: Re: [microblaze-uclinux] No luck
Date: Wed, 29 Mar 2006 08:42:03 +1000
Hi Andy,
What happens if you connect via XMD, and use the "mrw" command to write
characters directly to the serial port?
When XMD starts, you should be doing "xload mhs system.mhs" - as part of
this process it spits out the system address map. The address of the
uartlite TX fifo is 4 above the base address.
If the uartlite is at 0x41000000, then
mwr 0x41000004 65
should write a capital 'A' character to the serial port.
Similary you should be able to use mwr to bitbang the GPIO direction and
data ports - any life in the system at all?
Regards,
John
Abot Botbot wrote:
> Folks,
>
> So between other pressing projects I've continued to try and debug why
> my wu-tutorial, ML401 design was not outputting to the console. I tried
> scrutinizing the parameters, rebuilding from scratch, rebuilding the
> hardware on windows and downloading the kernel from linux, etc. I have
> gotten the serial port to heat up with the hardware I built in the
> windows environment. The MHS and MSS files for linux and windows
> hardware are identical, yet the windows compiled bit stream works and
> outputs the memory test outputs, and the linux compiled version does
> not. The (clean) building of the kernel in gcc and the building of the
> hardware in EDK both go off without error in the linux environment. I
> just cannot think of anything else I should check. I suspect some
> necessary software on my linux machine is to blame, but I am using the
> same distro as John Williams, Cent OS 3.6, fully yum updated, EDK and
> ISE 7.1 fully patched with updates and IP. If anyone has anything else I
> should verify in this environment, please let me know.
>
> Thanks,
> Andy
>
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>
--
Dr John Williams, Research Fellow,
Embedded Systems Group / Reconfigurable Computing
School of ITEE, The University of Queensland, Brisbane, Australia
(p) +61 7 33652185 (f) +61 7 33654999 (m) +61 403969243
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