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, …
Minimalist Europe Card Bus (MECB) – 6809 or 6309 CPU Card – v2.3 Update!
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 …
Minimalist Europe Card Bus (MECB) – 1MB ROM Expansion Card (Part 2)
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 …
Minimalist Europe Card Bus (MECB) – Some 6809 BASIC Fun
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 …
Minimalist Europe Card Bus (MECB) – Let’s push our 6809 speed!
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 …
Minimalist Europe Card Bus (MECB) – 6809 Testing, Coding, Sound!
Having finally assembled an initial 6809 based system, following the completion of my recent Motorola I/O + Sound card, we should now give the system a bit more thorough testing. …
Minimalist Europe Card Bus (MECB) – 6809 / 6809E CPU Card – v2.2 Update!
This post follows on from my earlier Minimalist Europe Card Bus posts and videos. The 6809 CPU Card has been a long journey. First v1.0 then v2.0, and now v2.2 …
Minimalist Europe Card Bus (MECB) – 6809 / 6809E CPU Card v2.x
This post / video follows on from my earlier Minimalist Europe Card Bus posts and videos. My original (version 1.x) MC6809 CPU Card required an original internal clock 6809 (or …
Minimalist Europe Card Bus (MECB) – MC6809 CPU Card (Part 2 – Testing)
This post follows-on from my previous post, where I presented and assembled my first prototype PCB for a 6809 CPU card, for the MECB bus. The first part concluded following …
Minimalist Europe Card Bus (MECB ) – MC6809 (or HD6309) CPU Card
This post follows on from my earlier Minimalist Europe Card Bus posts and videos. For MECB, to date I’ve designed and built a Backplane, a Prototype card, and a TMS9929A …