atrax27407 Posted August 22, 2017 Share Posted August 22, 2017 Does anyone happen to have either the source code or the EPROM produced by Millers Graphics for the CorComp RS232 that corrects the conflict in the interrupt line when using an 80-column card and an interrupt driven telecommunications program? Quote Link to comment Share on other sites More sharing options...
barry.peterson Posted August 23, 2017 Share Posted August 23, 2017 I have at least one, but it's probably the original, just opened it up and no indication of upgrade. Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 23, 2017 Share Posted August 23, 2017 I have several Corcomp RS232 cards, how would one tell if it had the upgrade? And if I do have it, I do have the capability of downloading the data, with my MiniPro. Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 23, 2017 Author Share Posted August 23, 2017 It should have a Miller's Graphics sticker on the DSR chip. 2 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 25, 2017 Share Posted August 25, 2017 This is what I found on three of them, don't know if I have anymore for sure. You can tell, two of them are very similar, except one is missing the 74LS125 ad there are different jumper and passive components in some places. The 1985 one does not have the lower 4 support chips, but does have a PAL(maybe the replacement for the four, maybe a good place to start, reverse engineering). It looks very similar to the lower half of the Corcomp MES. in design. dumped the two proms and one eprom and found there was some additional info on the modified 1984 card. Will place the binaries here Monday, went out the door to work this morning and forgot them. But nothing that says Miller Graphics. 1 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 29, 2017 Share Posted August 29, 2017 Here are the 3 binary dumps of the above three rs232's. 1984CCRS2322732EpromOldStyle.BIN 1984CCRS2322732promOldStyleDiff.BIN 1985CCRS2322732Epromdiff.BIN 1 Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 29, 2017 Author Share Posted August 29, 2017 Are there revision designations on the boards? Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 29, 2017 Share Posted August 29, 2017 Are there revision designations on the boards? What you see in the photos are pretty much it. They are high resolution photos. That's about all i can tell you about them, here from work. Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 29, 2017 Author Share Posted August 29, 2017 OK - thanks. Could you email the photos directly to me at your leisure. I assume that the DSR dumps are in the same order as the pics. 1 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 29, 2017 Share Posted August 29, 2017 OK - thanks. Could you email the photos directly to me at your leisure. I assume that the DSR dumps are in the same order as the pics. I can email them, but if you click on each picture and look at the bottom right corner of each pop-up, you will see the open to save the photo. and no the files are not in the same order, but the 1985 file is the center card. The other two are the 1984 versions, just differently made. i will have to take another look at the eprom(proms) and see. 1 Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 29, 2017 Author Share Posted August 29, 2017 I got the pics Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 29, 2017 Author Share Posted August 29, 2017 I just did a file comparison of ALL of the CorComp RS232 DSRs that I have (including the three listed here. According to my Hex Editor, all of them are identical in file content except for : 1984CCRS2322732promOldStyleDiff.bin The only difference between it and the others is the recognition/version byte which is AA03 instead of AA01. Could someone else do a comparison and check my results, please. Thanks Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 30, 2017 Author Share Posted August 30, 2017 I had used the wrong file for my comparison. The file mentioned in the above post has multiple and significant variations from the others hence the new version AA03. 1 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted August 30, 2017 Share Posted August 30, 2017 From which card/picture is that file ? (1984CCRS2322732promOldStyleDiff.bin ) The third one, labeled " 1984 / 3 / 26 " ? Quote Link to comment Share on other sites More sharing options...
RickyDean Posted August 30, 2017 Share Posted August 30, 2017 From which card/picture is that file ? (1984CCRS2322732promOldStyleDiff.bin ) The third one, labeled " 1984 / 3 / 26 " ? Schmitzi, if you look at the photos you will see the one that is obviously a prom and not an eprom. If you look at the file, you will see one with just the word prom in it, the one you mentioned and the other two have eprom. That explains which file goes to which. Hope this helps. 1 Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted August 30, 2017 Share Posted August 30, 2017 . ah OK, so this is it ? thx 2 Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted August 30, 2017 Author Share Posted August 30, 2017 Those are .bin files of the CorComp DSRs. Two are actually Vn 1 (identical) and the other is Vn 3 (the first one of the three. None are the Miller's Graphics version. Quote Link to comment Share on other sites More sharing options...
+Schmitzi Posted August 30, 2017 Share Posted August 30, 2017 like this? 1 Quote Link to comment Share on other sites More sharing options...
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