Re: Mk14 vdu
Sounds good. Then we lead onto selecting other graphics modes like split screen characters and graphics... for that toppage needs to strap to that line as well.
For the moment on my Orton View I have a slide switch that changes the 330 Ohm resistor from driving PS3 (Base RAM) to driving PS1 (Exp RAM) - I will just make sure that all my software does not set the relevant bit to an Output - while testing I realized I had wired them back up backwards - luckily I had the scope on and saw the battle on the line...
|