Mostly synth and retro computing related, with the odd splash of personal things too.
In my previous blog entry I posted about the 6502 computer PCB I made, since then a lot of progress has been made. A lot. Firstly the timing issue has been overcome, the 6502 will now happily run at 14MHz (tested up to 17MHz), the…
Continue reading...Well the PCBs arrived and I decided to build up the CPU one slowly, not building the full thing. I'm glad I didn't. Eventually after a lot of messing around with CPLD and ROM code I got something booting, it's the Grant Searle ROM, but…
Continue reading...It's been a while since I wrote, a lot has been going on. Firstly, the Transputer saga, I got a PCB from Oscar Toledo (https://github.com/nanochess/transputer) and confirmed that my TRAMs did indeed pass the tests with his card. However they did not with mine. Then…
Continue reading...I finally managed to get data into and out of the transputer module (TRAM). To do this I used an Arduino Micro I had (as it's 5V) and some breadboard. Now the TRAM pulls 800mA at 5V and the breadboard struggles with this, so I…
Continue reading...I have, as many of you probably know, a bit of a thing for retro computing. This doesn't help with my ongoing stack of projects. But it is what it is. Lately I've dived deep into the world of Transputers. I also have a PC104…
Continue reading...These days my day-job keeps me very busy, I enjoy what I do but it does mean I have very little energy left by the end of the week. With that in mind, I've made a decision; I will be pausing synth development (other than…
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