|
Message
From: baggeraap at gmail.com<baggeraap@g...>
Date: Wed Nov 15 09:16:15 CET 2006
Subject: [oc] T51 core questions
Thanks for your reply,I've started to read the VHDL code and noticed that reset is active low.
That was strange to me cause the 8052 datasheet says it's active high.
So after i tied the reset to vcc my program worked :)
----- Original Message -----
From: Mark McDougall<markm@v...>
To:
Date: Wed Nov 15 00:26:13 CET 2006
Subject: [oc] T51 core questions
> baggeraap at gmail.com wrote:
>
> > So i'm doing something wrong but can't figure out what it is.
> Does
> > anyone have an idea?
> I'm looking into my crystal ball.... does the number 7 or the name
> "Jim"
> mean anything to you? ...
> But seriously, could be a million things.
> First thing I'd do is hook up chipscope (is that the Xilinx version
> of
> Altera's SignalTap?) and look at what the T51 address and data
> buses are
> doing. Is the core running? Is it vectoring to the right address
> after
> reset? Is a fetch fetching the code bytes you expect? That's a good
> place to start.
> BTW I'm assuming you've already got a simple (non-T51) projects
> running
> on this board - including lighting the LEDs in question?
> Regards,
> --
> Mark McDougall, Engineer
> Virtual Logic Pty Ltd, <http://www.vl.com.au>
> 21-25 King St, Rockdale, 2216
> Ph: +612-9599-3255 Fax: +612-9599-3266
>
>
|
 |
Browse
