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Fahed Al Daye
Canada
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Posts 282
30 Apr 2010 13:39
| What is wrong with "power-led" linked "blinking" filter :D :D :D :D :D :D :D :D :D :D :D :D :D :D :D????
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Erik Bauer
Italy
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Posts 301
01 May 2010 13:22
| Since when the Baseboard Bringup has been threadjacked? ;)
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Marcel Verdaasdonk
Netherlands
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Posts 3976
01 May 2010 16:43
| Joe M
Norway
Posts 139
30 Apr 2010 01:54 asked about the op-amp and that was when Erik
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Joe M
Norway
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Posts 500
01 May 2010 18:27
| Well, maybe my audio-talk ran a little out of control. I just hoped someone from the Team could give us some technical details about the sound qualities of the Natami - since it's now clear that audio has been fully implemented (this info was brought up in this thread, you know). What I wanted to know was if the Natami sound chip is an improved clone of the original Paula chip, or if it's simply a sound chip similar to those found in mass produced sound cards (but tuned for the Natami). I hope I'm not the only one in here wondering about this... ;-) There is already a thread where I suggest the Natami audio discussion can be continued from now on: CLICK HERE
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Gunnar von Boehn
Germany
| | (Moderator)
Posts 5775
01 May 2010 18:58
| Joe M wrote:
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What I wanted to know was if the Natami sound chip is an improved clone of the original Paula chip, or if it's simply a sound chip similar to those found in mass produced sound cards
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Pamela, is a re-implementation of Paula.
Audio is done in the original AMIGA fashion.
We dont use no PC chip :-)
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Joe M
Norway
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Posts 500
01 May 2010 20:36
| Gunnar von Boehn wrote:
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Pamela, is a re-implementation of Paula.
Audio is done in the original AMIGA fashion.
We dont use no PC chip :-)
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Thanks for your answer, Gunnar. I'm looking forward to hear Pamela's voice. :-)
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Marcel Verdaasdonk
Netherlands
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Posts 3976
02 May 2010 12:40
| One last question on op-amps what packaging is the filter gonna be in?
And would we go for quad op-amp or just the double op-amp versions of the op-amp used in the Amiga?(Chip housing questions)
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Erik Bauer
Italy
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Posts 301
03 May 2010 10:51
| Marcel Verdaasdonk wrote:
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Joe M
Norway
Posts 139
30 Apr 2010 01:54
asked about the op-amp and that was when Erik
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@Marcel and others: do not take me too seriously! I just came back after a bit of time and noted that route change, tought it was funny to ask. @Gunnar: nice to hear other news about the new audio chip!!!
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Thomas Hirsch
Germany
| | (MX-Board Owner)
Posts 647
11 May 2010 00:05
| Copper enhancements
It was very hard work for the last two weeks. There was a very hard to find bug in the chip-ram memory management which let the DMA read data (in very few circumstances) be unreliable. So I can not show a new picture of something more working - I can only state that chip-ram accesses are stable now. Which is of course a basic feature.
Second I figured out that the copper memory interface needs also to be adjusted to new DDR2 memory interface of Natami. It still had the "old" C-one prototype interface. With that an instruction fetch took at least 28 cycles. This might be tolerable for WB but for games and demos it is not. Usually a copperlist is used to wait for some dedicated location on screen and then alter (for example) bitplane pointers. Here the 28 cycle delay per instruction will cause a messed up screen as bitplane pointers need to be altered as a group. So I introduced a short buffer which prefetches instructions. With that the copper does not need to wait for instructions AFTER the wait command. Unfortunately implementing this buffer sounds much easier than implementing it because not only the CPU but also the copper itself can alter the copper PC.
So in the last two weeks we have only slight chnges, but nevertheless the new table:
Frame generation .......... ECS, fixed 28MHz pixel clock
SyncZorro Interface ....... preliminary version
(new) Copper .................... fully implemented, with buffered data fetch
Video DMA ................. fully implemented
256 color registers ....... fully implemented
Sprites ................... 16bit linebuffer
blitter ................... basic implementation. Block and fill mode only, line to come
Video priority ............ half implemented
Scandoubler ............... fully implemented
Interrupts ................ fully implemented
Paula DMA control ......... fully implemented
Audio out ................. fully implemented
VGA out ................... working
DVI out ................... o
PCI ....................... o
IDE ....................... fully implemented
CIAs ...................... fully implemented
Disk DMA .................. 880k and 1790k, read only
Serial Port DMA ........... o
Slow peripheral I/O ....... fully implemented
(Joy/Mouse/Keyb/PRT/DSK/SER)
PC mouse and kbd support .. o
Fast RAM controller ....... o
Kickstart flash logic ..... o
Battery-backed up clock.... o
15k Video out ............. o
15k Video in .............. o
Audio in .................. o The explanation above shows, now the more tricky parts begin. But I also had some fun. Just to show how look here: CLICK HERE (sorry, it is a big file and not really professional. I know that, no need to tell me. Only to be used as a preview.)
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Guillaume Michalakakos
France
| | (MX-Board Owner)
Posts 454
11 May 2010 00:08
| Really impressive Thomas ! Good luck for the continuation ;-)
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Marcel Verdaasdonk
Netherlands
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Posts 3976
11 May 2010 00:33
| A vital part none the less. Keep it up and keep us posted. ;)
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Hagbard Celine
Norway
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Posts 24
11 May 2010 00:37
| Thanks for the update. All steps are important, even those without pictures attached :)
Keep up the excellent work.
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Fahed Al Daye
Canada
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Posts 282
11 May 2010 00:52
| Thomas Hirsch wrote:
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Copper enhancements
It was very hard work for the last two weeks. There was a very hard to find bug in the chip-ram memory management which let the DMA read data (in very few circumstances) be unreliable. So I can not show a new picture of something more working - I can only state that chip-ram accesses are stable now. Which is of course a basic feature.
.....................
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I just wanted to say that watching the video I don't mind my Natami having that RED bar on the right side of the screen :D :D :D :D :D :D :D :D :D Reminds me heavily of Apple II :D :D and crashing c64 heheheh. I would so kick my A1200 out of the door LIKE the speed of light ones Natami is out. I just want this version of Natami and that is it!! I don't care for any other Natami version..I just want my hands on this....* wipes the droll from my face *
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Thomas Hirsch
Germany
| | (MX-Board Owner)
Posts 647
11 May 2010 00:59
| ... don't actually expect getting a Natami WITH that "RED bar" on the side. It is a peliminary flaw which will be taken care of soon.
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André Jernung
Sweden
| | (MX-Board Owner)
Posts 988
11 May 2010 01:08
| Pardon my French, but now people can take their vapourware claims and shove them where the sun doesn't shine. Hooray for the real Amiga Chipset!!
Hooray for Thomas!!
Hooray for Natami!!
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Team Chaos Leader
USA
| | (Moderator)
Posts 2094
11 May 2010 01:09
| zomg! Gianna is sooo h0t! :)
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Asaf Ayoub
United Kingdom
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Posts 332
11 May 2010 01:38
| fantastic work ! keep up the great updates.
I think soon it will be time to make a compatibility list like minimig:
EXTERNAL LINK
this is great work. genius.is this a new interface ?
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P. Love
USA
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Posts 45
11 May 2010 02:35
| ahh Nice clip, we're moving forward -->->
thanks..
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Gunnar von Boehn
Germany
| | (Moderator)
Posts 5775
11 May 2010 03:25
| Hi Thomas,
congrats to the progress!
Your video of Giana Sisters running on NATAMI does look nice.
But the main question that we all have is:
To which level did you come?
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Sandra Kalohan
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Posts 49
11 May 2010 04:03
| Congratulations on the great success.
There might be hope yet for a 2010 release.
I don't want to push it too much, but how is workbench doing?
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The team will post updates and news here