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MinimigTg68 in Xilinx FPGA's   Message List  
Reply | Forward Message #104 of 321 |
Re: [minimigtg68] Re: MinimigTg68 in Xilinx FPGA's

Magnus Wedmark wrote:

Hi,

> You are correct! It is DDR-memory and the 1600 is a "bigger brother"
> of the more common 3E-Starter Kit with its 500K-device.
>
> Thank you for the tip about the DDR-controller. I've seen it but I
> would really like a good example of it in use.. Have you seen some?
> I'm used to working with SRAM so if it only could be just as simple..

I'm actually the author... and I've seen some examples of it being in
use :) None of them was actually small...

But it does present you a well documented wishbone interface without
bells an whistles, not even burst transfers. I've had a positive
feedback from someone using it on a Spartan-3E 1600 Starterkit without
any tuning or twiddleing...

The biggest obstacle shows up when you change the operating frequency
and need to readjust the phase-shift between the reading and sending
side: it does not auto-calibrate :(



j.




Wed Mar 5, 2008 10:22 pm

j.bornschein
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Message #104 of 321 |
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Anyone tried? Anyone working at it right now? I own a Digilent Microblaze Starterkit and would really like to be able to boot an Amiga on it. It comes with a...
Magnus Wedmark
spartan3wiz
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Mar 5, 2008
4:59 pm

Magnus Wedmark wrote: Hi everyone... ... Digilent seems to have removed this board from its page -- so I can't verify: But isn't this board the big brother of...
Jörg Bornschein
j.bornschein
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Mar 5, 2008
9:27 pm

... get over.. ... You are correct! It is DDR-memory and the 1600 is a "bigger brother" of the more common 3E-Starter Kit with its 500K-device. Thank you for...
Magnus Wedmark
spartan3wiz
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Mar 5, 2008
9:48 pm

hi, I am following this thread... You will find a sopc project using the controller here : https://roulette.das-labor.org/bzrtrac/wiki/soc-lm32 -- ... -- -- ...
Ronivon Costa
johny_2k
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Mar 5, 2008
10:18 pm

I tried that a couple of weeks ago, but did not get the expected result. I've only tried it in a Basic test but I had problems getting the lm32 to run on my...
Magnus Wedmark
spartan3wiz
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Mar 6, 2008
8:15 am

Magnus Wedmark wrote: Hi, ... I'm actually the author... and I've seen some examples of it being in use :) None of them was actually small... But it does...
Jörg Bornschein
j.bornschein
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Mar 5, 2008
10:22 pm

... One (other) obstacle you'll face in using another DDR controller in Minimig is that the controller needs to arbitrate between 68K and Z80 accesses - so ...
Mark McDougall
tcdevelop
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Mar 5, 2008
10:39 pm

Mark McDougall wrote: Hello, ... Could you sum up the requirements for the minimig SDRAM access? (operating frequency; maximal latency: data width.. ) Sorry...
Jörg Bornschein
j.bornschein
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Mar 5, 2008
11:00 pm
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