0110 – Timing is everything

Before I get much further with the video module, I need to properly flesh out the heartbeat of the system: the timing circuit. As mentioned previously, the /// uses a 14.318MHz clock. The reason for such a high  frequency is that (apart from other components in the system) the video module needs a 7MHz and… Continue reading 0110 – Timing is everything

Advertisements

0101 – Video output

Now that I've completed a basic 6502-based computer, my next milestone is to implement a video output system. The Apple ///'s video system was unique, in that it provided similar video modes to the Apple II, as well as additional modes to display higher resolutions with many more colors. Additionally, unlike the II which was… Continue reading 0101 – Video output