HD63C09 PLCC Packaged CPUs Received & Tested!
Recently, a kind gentleman (Leslie Anderson), donated some PLCC package CPU’s, for future projects. So, it’s time to test the PLCC packaged HD63C09 microprocessors on my MECB 6809 CPU Card, …
Recently, a kind gentleman (Leslie Anderson), donated some PLCC package CPU’s, for future projects. So, it’s time to test the PLCC packaged HD63C09 microprocessors on my MECB 6809 CPU Card, …
After designing my 6809 CPU Card, the next CPU on my wish list was the 6502. Join me, as I walk-through the design, then I assemble and test my first …
In an earlier post / video, I updated the TMS VDP Display Card to v2.0, adding support for the TMS9918 60Hz Composite Video VDP chip, which was the most common …
Recently, someone mentioned that they were planning on using a TMS9918 VDP chip, with the MECB TMS VDP Display Card. As I live in a PAL 50Hz TV standard country, …
Recently, while working on my 6502 CPU Card design, I became aware of a small oversight on my existing 6809 CPU Card. Nothing that has caused any issues, as I …
With our 1MB ROM Expansion Card design and assembly already presented in Part 1, it’s now time to test our assembled Card, with an initial use scenario. Initially, I’m going …
Continuing on, with my Minimalist Europe Card Bus project. Join me as I introduce a 1MB ROM Expansion Card, discuss the design decisions, and assemble my first card. First some …
It has been pointed out to me, that I had overlooked officially documenting the MECB Bus pinout. So, it’s time this oversight was fixed! I suspect that, originally, I was …
As I now have a modular retro 6809 computer system, with a flexible memory map, I thought it would be fun to mimic another simple 6809 system and to also …
Following my recent 6809 system testing video, a viewer asked if the system could run at 3Mhz, or perhaps even a little higher. Join me as I initially test the …