On 26/10/2015 17:09, "John Robertson" <j...@flippers.com> wrote:
> Hi Adrian, > > Perhaps one final test for your 2332s is to do a Diode Test on the pins > relative to the ground pin (pin 12) and Vcc pin (24). These should sow > either open or something like 0.6 or higher voltage drop across the pins > - exchange the probes to check both directions. I'll make up a small wiring harness that'll let me do that, it'll give me something to do while I'm waiting for my lady to ring :) > If your gates all read OK (check between Vcc and GND as well!), then it > might be that the brand of 2332 you have simply draws more current than > your programmer likes. What brand is the PROM? Perhaps it is in one of > our reference book libraries... They're all stock MOS 2332 PROMs used in every CBM PET. Mike's already linked to the archive and tonight I've successfully burnt the 8032-flavour PETTEST.BIN so my programmer is happy with Ti 2532JL EEPROMS that I liberated from work. Cheers, -- Adrian/Witchy Binary Dinosaurs creator/curator Www.binarydinosaurs.co.uk - the UK's biggest private home computer collection?
