I'm talking about our *switchable* PLA replacement which has 4 additional inputs to select WHICH of the contained PLA equations should be active: https://hackaday.io/project/169048-pladvanced-all-in-one-pla-replacement In order to test it we use an adapter which maps the additional 4 input signals to the upper address lines of a 27C800 EPROM. /Frank On 24.05.2020 20:24, Gerrit Heitsch wrote: > On 5/24/20 7:59 PM, Frank Wolf wrote: >> In order to check a PLA replacement you could reading it like a 512kB >> EPROM (with an adapter for PLS100N) >> and compare it against a genuine PLA readout (or the file written by >> the small >> program on zimmers). >> >> We use the same method to check if all PLA variants in our switchable >> PLA replacement >> are correct: We use an adapter to read it like a 27C800 EPROM and >> compare it against >> a correct file. > > I would expect that to be a 27512 EPROM since the PLA has 16 inputs > and 8 outputs. > > Gerrit > > >Received on 2020-05-30 01:51:07
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