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Re: Kontron PSI98 [Re: rfka01] #110461
07/31/17 01:55 PM
07/31/17 01:55 PM
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R. Belmont Online content
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Maybe a calculator mode? In which case I'd love to see the cos, tan, and ^2 keys smile

Re: Kontron PSI98 [Re: R. Belmont] #110462
07/31/17 02:10 PM
07/31/17 02:10 PM
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somewhere else entirely
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Olivier Galibert Offline
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somewhere else entirely
Technically, it's obviously a tilde (ascii 126). Dunno what it's used for though :-)

Re: Kontron PSI98 [Re: rfka01] #110466
07/31/17 10:05 PM
07/31/17 10:05 PM
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rfka01 Offline OP
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The operating manual has some information on those keys:

DIN switches between German Umlauts and international characters like the square brackets and signals the keyboard's state with an LED. If you try to use Umlauts in international mode or vice versa, you get buzzed. Acoustically.

The keyboard is set for a serial connection at 9600 baud ... this can be changed with the DIP switches visible in the photos. The "Kontron 80 Bedienungsanleitung" also covers the PSI98's keyboard.

I can't test the keyboard until next week, but I'll check if the other documents give more hints.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Kontron PSI98 [Re: rfka01] #110485
08/03/17 12:43 AM
08/03/17 12:43 AM
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Duke Offline
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Floppy hooked up now:

edas-os.td0
[Linked Image]
psi80cpm.td0
[Linked Image]
psi9xx01.td0
[Linked Image]

I'll clean this up tomorrow and submit a first version. Next step is probably the keyboard.

Re: Kontron PSI98 [Re: rfka01] #110503
08/04/17 03:21 AM
08/04/17 03:21 AM
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Duke Offline
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I've fixed some more issues and added proper DMA support, CP/M can now successfully load the SETCRT program:

[Linked Image]

The driver was also committed to the repository.

rfka01: There are checksums printed on the ROMs, however except for the keyboard ROM they don't match the files. If it's not too much trouble, maybe you can try a redump and see if you get another result? Or maybe the labels are just wrong, since I don't see any obvious errors.

Re: Kontron PSI98 [Re: Duke] #110520
08/04/17 11:05 PM
08/04/17 11:05 PM
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rfka01 Offline OP
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Hi Duke, I'll re-dump them on Monday, I'm away from home until then.

Nice results so far! Thanks!

If you scroll through the crt options in the CP/M screen you posted, the screen gets adjusted for the different video modes. The changes stick only after a reboot, however.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Kontron PSI98 [Re: rfka01] #110545
08/08/17 08:01 PM
08/08/17 08:01 PM
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rfka01 Offline OP
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Duke, the dumps of the three mainboard ROMs turn out exactly like the first try when I run them through my second eprom programmer, so it would appear that my dumps are correct, maybe they updated the ROMs later but didn't bother do correct the labels - or the ROMs have become corrupt.

There's one thing I noticed, though:

Using the HxD hex editor, I generated different types of checksums for the ROMs ... at least the keyboard ROM (mcg_2.1_1035_06f0.bin) has a valid Checksum-16 (not CRC-16) of 06f0.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Kontron PSI98 [Re: rfka01] #110546
08/08/17 08:13 PM
08/08/17 08:13 PM
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Yeah, Duke said he could match the keyboard ROM's checksum too smile

Maybe the owner re-burned them for an update or something and didn't change the labels.

Re: Kontron PSI98 [Re: R. Belmont] #110547
08/08/17 08:20 PM
08/08/17 08:20 PM
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rfka01 Offline OP
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Cue sound of choking from foot being inserted into mouth ... smile


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Kontron PSI98 [Re: rfka01] #110564
08/10/17 12:35 AM
08/10/17 12:35 AM
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Duke Offline
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Thanks for checking the ROMs. Meanwhile I've added keyboard input:

[Linked Image]

CP/M seems to be fully usable, KOS still hangs at startup.

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