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Acorn System 1 Speed Test
Lots going on with this project right now, but I thought I’d do just a very quick update.Another batch of PCBs arrived a couple of days ago and I’m slowly working my way through assembling them. The one thing I’m pleased with is that by replacing the relatively slow (in terms of access speed) EPROM…
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Acorn System 1 Memory Board and Dataman programmer update
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Acorn System 1 progress and Dataman programmer
I’m sort or regretting buying this Dataman programmer. I need to spend a lot more time trying to figure out exactly what’s going on with it, but assuming my unit doesn’t have some weird intermittent fault, then the quality of the software; specifically the USB driver sucks. I’ve tried this programmer now in three different machines;…
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Dataman EPROM programmer and fake EEPROMS
One of my ongoing projects is building a replica Acorn System 1 computer and this has required programming EPROMS. Programming EPROMS in itself is fast, but erasing them ready for re-use is time consuming. So for this project I decided to use EEPROMS. Ebay had numerous Chinese sellers listing all types of devices from 2K…
