Look forward to seeing more on this.
What status are you at with the ASIC module? Are you looking at
replacing the 1772 as well?
Any plans to make the ASIC code available - as it may allow others to
help with your development perhaps?
Quoting VELESOFT <veles...@seznam.cz>:
----- Original Message -----
From: Leszek Chmielewski
To: sam-users@nvg.ntnu.no
Sent: Tuesday, October 04, 2011 11:11 AM
Subject: Re: Resistor R55
My SAM has no BRIGHT too. There was a shortcut between Composite
and +12V, so the MC1377P was burned out (Just got a replacement by
desoldering a Atari Mega STE), I lost BRIGHT too as the ASIC was
toasted a little too. After replacing it with ASIC from my spare SAM
the BRIGHT is back again.
It is time to design a replacement ASIC. Velesoft is working on
one since years, but he is too ambitious: 4096 Colours, Hardware
sprites and scrolling...
LCD
Hi. My project is SAM COUPE clone (but no ASIC replacement). First
prototype will based on big CPLD + fast Z80cpu + big sram + saa1099
sound chip.
Here is components for first SAM clone:
http://velesoft.speccy.cz/other/ula-xc95288xl.jpg
http://velesoft.speccy.cz/IMGP3176.JPG
http://velesoft.speccy.cz/IMGP3178.JPG
Priorities:
- compatibility with SAM COUPE
- more colours (minimal 256 colors palette)
- faster CPU
- possibility run at full speed 6MHz in all graphic modes (not
contended memory)
- better compatibility with ZX Spectrum (ZX mode can work as ZX128)
- big ram + big rom
- internal peripherals...
Actuallly I must finish ZX projects: K-MOUSE 2011, complette RGB>VGA
convertor, ULA1 clone (zx clone based on old russian chil ULA1).
After it I can continue on SAM projects...
VELESOFT
