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
