How does it work? The 6502 (or W65C02S in our case) is really designed to have some ROM (or modern flash, etc.) to enable it to boot. At power on or reset, it reads an address out of a fixed … Continue reading
Category Archives: General Update
Where next? I had a barely working 6502 prototype system on my workbench. It was a little unstable and didn’t like being moved, but it did work and demonstrated to me that the concept was viable. Initially I didn’t know … Continue reading
A 6502 SBC: Working prototype To mark my own use and knowledge of 40 years of the 6502, I decided to build my own little single board computer (SBC) based on it. I had a few ideas in-mind – one … Continue reading
In 1976, Steve Wozniac wrote what’s commonly known simply as Wozmon. Wozmon is a machine-code monitor program and for those who may not be aware, this is essentially code that starts to run in a microprocessor at initial power on. … Continue reading
The Gigatron is a TTL computer and when I first heard about it, I thought that with that name, I had to get one… … and there it is. https://gigatron.io/ So what is it? It’s the brainchild of Marcel van … Continue reading
I said I’d leave the hard parts to last – well, even with these done, we’re not done yet, but it’s time to tackle the rain fall and wind speed sensors. These are slightly different from the others in that … Continue reading
At this point I have a little “main” program that sits in a loop reading most of the sensors and simply printing them to the screen. I’ve created an individual little file for each sensor and given them names – … Continue reading
Now it’s a matter of plumbing it all together. I have created a Makefile – by copying an existing one and changing it (I used the one from the gpio program because it’s similar) then I took the weather.c program … Continue reading
The story so-far… In the beginning the universe was created… Then after a while came weather with the inhabitants of a little blue-green planet having a great interest in this weather – presumably because there was so much of it… … Continue reading
Now its time to look at the rain gauge and wind speed sensors. As far as I can tell, these are just single-bit inputs on the GPIO connector. I don’t know which pins and before I wade through the supplied … Continue reading