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Greg the Canuck
Canada
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Posts 24
02 Oct 2009 06:32
| @thomas > "This means at least one memory bank will work and for that the DMA channel interfaces can be installed and tested." Another hurdle cleared. Very nice work!
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Thomas Hirsch
Germany
| | (Natami Team Member)
Posts 233
05 Oct 2009 12:24
| @Deep Sub Micron
Thank you, yes it is. Regrettably the only thing I really learned out of this is how to obey the Altera naming conventions. The memory controller works but is a black box for the user.I am still undecided whether to keep it or to write an own memory interface in the near future. Convenient is that the memory controller "just" works. But I do not know how and why. You just carry your request to it and it is "guaranteed" that you will be carried out. On the other hand it has much more features than we need so it takes more resources than needed. And there need to be an interface to the memory controller nevertheless.
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Marcel Verdaasdonk
Netherlands
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Posts 2089
05 Oct 2009 15:23
| Hm as usual, use and abuse untill something better comes along. ;)
Offcource I'm talking about the memory controler.Use it, it's allready there if you think you don't need every part of it mod it.
And if you think you can do better, create a better one but use this one untill it's finished. ;)
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Thomas Hirsch
Germany
| | (Natami Team Member)
Posts 233
06 Oct 2009 14:45
| > I have installed a simple arbitter on the Zorro side. So I can access some different memory locations now. It is now possible to read and write ram locations in the 2MB chip-ram space, the CPU side of the CIAs is reachable and the configuration port of the DVI cihp is available now. I was able to "convince" the DVI chip to enable the VGA output but not the DVI itself. Unfortunately my TFT says only "out of frequency" - so it is not very useful for debugging. I put this item "on hold" till I can use the ECS registers to activate variable scan rates, I think this might help debugging. For now I can live with a VGA-only display.
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Marcel Verdaasdonk
Netherlands
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Posts 2089
06 Oct 2009 14:56
| Thomas do you still have a CRT perhaps it can handle the frequency.
If not well guess we are out of luck. :(
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Thomas Hirsch
Germany
| | (Natami Team Member)
Posts 233
06 Oct 2009 15:21
| @Marcel
No CRT with DVI at least. And "out of frequency" could also mean jitter on the clock or no frequency at all...
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Marcel Verdaasdonk
Netherlands
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Posts 2089
06 Oct 2009 15:33
| Yes that is true i can be too low, and there are things like DVI->VGA pluggs, i asume this will be a common accesory since not everyone owns such a screen with a DVI port. :/
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Wawa Tk
Germany
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Posts 351
06 Oct 2009 16:26
| but vga does output some kind of signal already? if its working dvi is not the priority. get the system running first and then go for extras;P
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Team Chaos Leader
USA
| | (Natami Team Member)
Posts 1199
06 Oct 2009 19:13
| My monitor has 3 HDMI ports, 1 VGA, and some weird composite and S-video ports. I hope that will work.
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Marcel Verdaasdonk
Netherlands
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Posts 2089
06 Oct 2009 21:05
| Btw i tested something a TFT screen will say frequency out of range if it doesn't support the resolution.
Thomas a DVI to VGA plugg and a CRT screen should work!
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Thomas Hirsch
Germany
| | (Natami Team Member)
Posts 233
06 Oct 2009 22:51
| Marcel, VGA *DOES* already work. So no need to prove that with a CRT. DVI is now low priority as long as I can see a picture at all.
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Marcel Verdaasdonk
Netherlands
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Posts 2089
06 Oct 2009 23:03
| Oke, I was under the impression you had trouble with it.
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Dave DyLucke
Espania
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Posts 62
12 Oct 2009 23:37
| I think 128mb for ram is a bit short... Why not to set a RAM socket instead having the ram soldered to the board?
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P. Love
USA
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Posts 28
13 Oct 2009 00:17
| Dave DyLucke wrote:
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I think 128mb for ram is a bit short... Why not to set a RAM socket instead having the ram soldered to the board?
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answers are in the Q&A section.....
CLICK HERE 128mb is for the evaluation board.... There are two big reasons that speak against slots. Slots are expensive and slots will cause issues as
there are many different memory DIM models. DIM slots
require higher testing budget and a lot longer time.
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Olaf Schoenweiss
Germany
| | (Natami Team Member)
Posts 204
22 Oct 2009 10:44
| Will there be any developer boards this year? Should we save money for christmas? :)
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Dag Jacobsen
Norway
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Posts 47
23 Oct 2009 12:05
| I hope no news, is not bad news ...... :-)
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Claudio Wieland
Germany
| | (Natami Team Member)
Posts 364
24 Oct 2009 21:45
| News, please!
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Gunnar von Boehn
Germany
| | (Natami Team Member)
Posts 3727
26 Oct 2009 05:46
| Dag Jacobsen wrote:
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I hope no news, is not bad news ...... :-)
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No news is always GOOD news - with Thomas ;)The reason is: Thomas is a 100% Hardware developer.
If he makes progress in some development area then he enjoys working night and day on this area. Which means, if Thomas does not answer or respond in the forum for a week then this is because he made some good progress - I assume he spends all the time developing and did not even read the forum for days. Maybe he is already trying to beat his old Turrican highscore records on the Natami-LX
Cheers
Gunnar
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Claudio Wieland
Germany
| | (Natami Team Member)
Posts 364
26 Oct 2009 07:48
| LOL
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Marcel Verdaasdonk
Netherlands
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Posts 2089
26 Oct 2009 13:33
| Don't mind me asking but what was Thomas's highscore on Turrican?
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The team will post updates and news here