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Ksarul

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Posts posted by Ksarul

  1. Posted

    The 32K test program from PeteE would be one possibility there, as would the CorComp memory test (less comprehensive though) or the original TI Diagnostics cartridge (also somewhat less comprehensive). All three would expect to run from cartridge space though. . .and Diags needs GROM space.

     

    If the original poster has a FinalGROM or a FlashROM99, that would let him load the programs to perform the testing.

  2. Posted

    It is also possible that only the lower 8K of the memory card is bad/unstable, as that's the memory area the CALL INIT is working with. A regular Extended BASIC program without Assembly support would run fine on the card, but anything trying to use that lower 8K would probably bomb out at some point.

  3. Posted

    9 hours ago, wierd_w said:

    WHEE!  See how that door works?  It does not stay open though, and wants to fall shut, but the fact that it actually opens and shuts is damned exciting for me.  The letters need to be gouged out with the sewing pin, (though I a thinking I should upgrade to a leather worker's awl because it is more rigid and easier to control)
     

    You might also look at the needle files in a store that sells beading supplies. I have a round one that comes to a beautiful needle-sharp tip for reaming out tiny holes.

  7. Posted

    There were over 250 PLATO software packages released on disk for the TI (all of them need the cartridge to work). The entire set is available online. You also have the option of going to an online PLATO server at Irata Online, as he has resurrected one of the master servers and updated the TI PLATO Terminal program to access it as well--that gives access to many more PLATO programs that weren't compiled to run natively on a /4A.

     

    The programs needed a disk drive--they were much too large for cassette use.

  8. Posted

    There were still a lot of beige systems in the early flat screen era, but even thinking back on what I saw on sale back then, less than a quarter of the flat screen monitors were beige--and a lot of the later CRT monitors were black or dark gray too, come to think of it, so that transition period went all over the map.

  10. Posted

    From what I've seen, Kienzle used 68000 and MIPS-based machines (running UNIX), at least during the later period where Mannesmann owned them. Their somewhat earlier 9000 series (late eighties) did use the 99000 though (along with their own proprietary MTOS operating system).

    • Like 1

  13. Posted

    Understood--I was more giving a tip to anyone who finds one of the male connectors somewhere and tries to combine it with a standard 44-pin female connector on the other end of the cable. KEL-AM works great if it is on both ends of the cable, but things go wrong quickly if you mix them with other brands of connectors.

     

    I have a couple of these cables connected to my systems as well. They work great. I should probably make a layout for a finger-board connector with a 44-pin header socket on it so that people can build stable connectors with currently available parts.

    • Like 1

  14. Posted

    4 hours ago, sparkdrummer said:

    Yeah, suffered an old man brain fart and forgot to stick it up on the first of the month. I wonder how many other people look forward to and track this lil’ ol’ paper. 

    The occasional old man brain fart is a normal thing--it is when they start to take over your life that there is a sure sign of interference from good old Alfred E. . .

    • Like 2

  15. Posted

    I can think of two ways it was fully eliminated in the past: the Rave PE2 allowed the motherboard to be installed into the case and brought the cartridge port and keyboard interface to the outside, and the SNUG 99/4P, which actually needed three PEB cards to replicate the entire console (although it also gave a lot more GROM space, AMS memory, and upgraded the system to 80-column video). Of course, there was also the mostly compatible Myarc Geneve 9640 as well, so that would make a third solution.

  16. Posted

    4 hours ago, Ed in SoDak said:

    Self-gratuitous bump!

     

    My ace in the hole...

     

    FirehoseExtenderConnectors.jpg

    Unfortunately, they used KEL-AM connectors on those cables, and they reverse the positions of the even and odd pins when compared to a standard connector. That said, you need the KEL-AM connector on both ends or your pins will all be switched (even to odd and odd to even).

  20. Posted

    QI boards don't bring two lines out to the cartridge port (I think one is CRUIN and I forget the other at the moment). This may be an issue--and I would suggest reading the entire FinalGROM thread to be sure of where the known issues are. Some QI boards have the 1981 GROMs, but that doesn't really change anything but the console's ability to recognize ROM-only cartridges. It is the QI board's hardware differences that cause problems with the FinalGROM, IIRC.

    • Like 1

  21. Posted

    21 hours ago, MacRorie said:

    There’s a schematic?  If you have a link, I would love to take a shot at it. 

    One very important note on putting these into the PEB. The data lines are extremely sensitive to variations in trace length between the bits. Even minor variances can introduce some serious garble. . .I have a design for one that I'm still trying to fine tune because of that.

    • Like 3
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