> On May 28, 2016, at 1:31 PM, Eric Smith <space...@gmail.com> wrote: > >> On Sat, May 28, 2016 at 5:31 AM, Corey Cohen <appleco...@optonline.net> >> wrote: >> I can't wait to buy one!!! I have a spare Replica-1 just waiting to hook up >> to a Monster 6502. > > It doesn't run at full speed. It presently runs in the tens to low > hundreds of kHz. If a Replica-1 can be run slower than normal, that > might work. Other common 6502-based micros, such as the Apple II or > Atari 400/800 will not work at low speed due to inherent timing > requirements related to video generation and DRAM refresh. > >> Just need to wire up a single step switch and this thing will be awesome!!! > > If you wire single-stepping using the RDY line, that should work, > though it will only single-step read cycles, not write cycles. > > You can't single-step the actual clock because it is dynamic logic.
The replica-1 uses a propellor chip for video and static ram so I don't think it's that critical to timing.
