- Posts: 2996
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
With a standard Sinclair ULA, overclocking is difficult as you can’t change the frequency without messing up the screen display.
Slight correction, the older ULA could do 2X speed... my special 1 of a kind zeddy , whilst based on that older ULA its very different and the cpld is on a break out board so that i could use all the IO it goes 20Mhz flat out and runs 3.333Mhz at normal speed ( 20Mhz / 6 ) it also benefits from completely split busses so no resistor isolation bridges are needed.
the Wilf Rigter pages are awesome !