Yes. Now I plan all modes fast/uncontended. Perfect memory contention timing
will add in 6MHz mode later.
VELESOFT
----- Original Message -----
From: "Simon Owen" <simon.o...@simcoupe.org>
To: <sam-users@nvg.ntnu.no>
Sent: Sunday, March 24, 2013 7:28 PM
Subject: Re: Sam Coupe project..making a real SAM in hardware ??
Will any clones still have a 6MHz mode, with memory timings identical to
the original hardware? A higher proportion of SAM software depends on
them for video effects, compared to what you'd see on the Spectrum.
Si
On 24/03/2013 14:28, Leslie Anderson wrote:
Hi.
I'm new to the SAM COUPE group and wondered would anyone be interested
in making a homebrew SAM-COUPE ??
It would have an improved spec. on the original:
Z84C0020 20MHz Z80
512K SRAM ( KM68400,K6T4008 etc)
64K or so EEPROM W27C512
CPLDs as glue logic for video, memory and I/O decoding, serial and
parallel input,output RS232, LPT1 etc
SAA1099 sound chip
V9958 +128K RAM as second VDP for sprites etc
possible using a micro-controller for PS/2 mouse / keyboard and
joystick input.
Should cost about £30 for ICs and stuff plus another £50 for a one-of
prototype PCB.
Anyone interested ??
Best Regards
