Control a Macintosh Classic CRT with a BeagleBone Black – Part 3

Introduction

This is the final part of my series discussing my Macintosh Classic CRT project. In this article I want to give you a summary of my future ideas for the macdisplay project. I will write a dedicate article for each idea as soon as I finished it. The links to these articles will be in this one, so look at it as a table of contents. Continue reading Control a Macintosh Classic CRT with a BeagleBone Black – Part 3

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Control a Macintosh Classic CRT with a BeagleBone Black – Part 2

This article will cover the software aspect of my Macintosh Classic project. The final solution is running on a BeagleBone Black, using it’s programmable realtime unit. If you want to learn more about PRU programming, you can do so here. If you haven’t done so already, I recommend you to read the other parts of this series. You can find the table of contents at the end of this article. Continue reading Control a Macintosh Classic CRT with a BeagleBone Black – Part 2

Control a Macintosh Classic CRT with a BeagleBone Black – Part 1

Introduction

This article will explain how the timing of the Macintosh Classic CRT works and how I tried (and failed) to interface it with the Raspberry Pi, and how I interfaced it with the BeagleBone Black’s PRU. This is a multipart series, you can find the table of contents, as always, on the bottom of the page. Continue reading Control a Macintosh Classic CRT with a BeagleBone Black – Part 1

Control a Macintosh Classic CRT with a BeagleBone Black – Intro

Almost one year ago I found an old Macintosh Classic, produced in the 1990’s in a basement. I bought it from the guy who used to own it and he told me, that he doesn’t know whether it is working or not and that it was standing there for about 20 years, so it was in a pretty bad shape. After it arrived at my apartment, I immediately plugged it in and switched it on. After the screen came on, it was pretty disappointing: It just displayed a checkerboard, which seems to be a pretty common issue with these models. This problem is caused by a variety of issues.

Continue reading Control a Macintosh Classic CRT with a BeagleBone Black – Intro