Superboard mods

Jeff
Posts: 370
Joined: Fri Mar 07, 2014 4:44 am
Location: British Columbia, Canada

Re: Superboard mods

Post by Jeff »

...continued from last post.

Aardvark Video Board Bottom
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New ROMS
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continued...
Last edited by Jeff on Thu Jul 19, 2018 2:57 am, edited 4 times in total.
Jeff
Posts: 370
Joined: Fri Mar 07, 2014 4:44 am
Location: British Columbia, Canada

Re: Superboard mods

Post by Jeff »

...continued from last post.

32 Chars per line
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64 Chars per line
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C1P
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While the modifications are quite messy, and I would hate to have to repair them in the future, the results are quite pleasing to use.

Enjoy!
/Jeff
Last edited by Jeff on Thu Jul 19, 2018 2:57 am, edited 2 times in total.
BillO
Posts: 216
Joined: Tue Jul 08, 2014 4:03 pm
Location: Canada
Contact:

Re: Superboard mods

Post by BillO »

Thanks for posting this Jeff.

I agree, nice ends, but do they justify the means?
Box stock Superboard II Rev. B
KLyball replica 600D, replica 610 & KLyball Data Separator
OMS SBME and SBME+ memory cards
OMS Digi-Mule expansion bus
KLyball memory card
Scott Larson
Posts: 33
Joined: Fri Nov 14, 2008 8:32 pm

Re: Superboard mods

Post by Scott Larson »

Oh man I think this is the kit I used to butcher my video up to 64 characters per line. The text sounds very familiar.
Jeff
Posts: 370
Joined: Fri Mar 07, 2014 4:44 am
Location: British Columbia, Canada

Re: Superboard mods

Post by Jeff »

Image
waltermixxx
Posts: 129
Joined: Sun Feb 03, 2019 10:31 pm

Re: Superboard mods

Post by waltermixxx »

Jeff I think I may have one of your Superboard II's?
I say this because some of the pictures in this thread where there are pictures of roms & the wiring,
as well as the hand writing on the eprom labels looks familiar, and so does the old wiring...

I could be totally off, but I have a Superboard II that I traded from Steve Gray,
and it looks like it has some kind of mod on it. I'm having issues getting the video to
fit onto my screen, my scope shows 31 characters across, but the tv screen only shows 24 of them,
there is a 74LS93in the proto area below the 3.984 mhz crystal.... and it's wired up to pin 12 of the 74LS123 that
generates the /HS pulse....at any rate here are some pics...in the first pic, that is the bottom of 74LS123 that generates
/HS, there is a wire from pin 12 that goes down to the 74LS93 more pics to come... does this look familair to you, the wire looks
the same as in your pics above, and the hand writing on the roms? ( I could be out to lunch, i have been up until 2:00 AM since sunday
trying to figure out what is going on with my video.... ignore the the "unsoldered" pins on the 1000pf cap and 10k resister, I tried adjusting those
to see if I could wrangle my video in, but I now think the portion of the firmware that blanks out the first 4 characters and last 4 characters is not there.... hope this all makes sense. :)
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Turning into quite an OSI Junkie (HTFDTH?) Superboard II REV B-40K, 9600b, HC-05 Bluetooth, Superboard II Rev D, C4P rebuild- 502, 542c, 540B. :)
waltermixxx
Posts: 129
Joined: Sun Feb 03, 2019 10:31 pm

Re: Superboard mods

Post by waltermixxx »

Ok sorry, thes was purchased from someone else, a Gordon.
Cheers.
Turning into quite an OSI Junkie (HTFDTH?) Superboard II REV B-40K, 9600b, HC-05 Bluetooth, Superboard II Rev D, C4P rebuild- 502, 542c, 540B. :)
Steve Gray
Posts: 321
Joined: Mon Oct 06, 2008 1:54 pm
Location: Markham, Ontario, Canada
Contact:

Re: Superboard mods

Post by Steve Gray »

Walter, yes I purchased the Superboard from someone in London in 2006. I remember trying it out and not getting proper video. I didn't realize it had a custom monitor rom in it or I would have archived it before passing it on to you. Hopefully you can send it here for us to enjoy. I have a totally stock C1P with OSI monitor if you'd like to try it, or I can burn you a copy. just make sure the jumpers are set properly ;-)

Steve
C4P working, C1P working. 600D Replica working, C4P+D&N floppy not working. 505 board, 610 board, Mittendorf board, TOSIE hacker board need testing, PicoDOS disk untested.
RedskullDC
Posts: 62
Joined: Thu Jul 18, 2013 11:24 am
Location: Dorrigo, NSW , Australia

Re: Superboard mods

Post by RedskullDC »

Hi All,

Would be interesting to know what the changes are in the "BASIC3" ROM.

The "ROMS Rev 2.0 Instructions.pdf" that Jeff posted contains the source for the changes to "BASIC4" and the "MONITOR", but I can't see that it details any changes to the "BASIC3" ROM?

Perhaps just a fix for the garbage collector bug?

Cheers,
Leslie
Superboard II - RevD, 8Kb, DABUG monitor ROM.
C1P - RevD, 610, 2 drives, CEGMON.
FPGA C1P/C2/C4. 1-8MHz, 48Kb ram, CEGMON, 16KB Hires.
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