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Bit3 Full View 80 (Under The Hood)

Bit3 Full View 80

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#1 AtariGeezer OFFLINE  

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Posted Sat Feb 7, 2015 7:01 PM

After some long procrastination, here are the ROM Dumps and some pics:

 

Attached File  Bit3Char.ROM   4KB   145 downloads

Attached File  Bit3Code.ROM   4KB   148 downloads

ROMs are 2732's

 

P2060029.JPG

P2060055.JPG

 

More to follow...


Edited by AtariGeezer, Sat Feb 7, 2015 7:02 PM.


#2 AtariGeezer OFFLINE  

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Posted Sat Feb 7, 2015 7:04 PM

P2060057.JPG

P2060058.JPG



#3 AtariGeezer OFFLINE  

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Posted Sat Feb 7, 2015 7:06 PM

P2060024.JPG

P2060026.JPG



#4 AtariGeezer OFFLINE  

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Posted Sat Feb 7, 2015 7:11 PM

P2060039.JPG

P2060038.JPG

 

Will post pics in action as soon as I can fix a cable and adjust the 1080 monitor :)



#5 UNIXcoffee928 OFFLINE  

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Posted Sat Feb 7, 2015 7:51 PM

A lot of people probably don't know what they're looking at, here... 

 

There were a few VERY desirable, "Holy Grail" items, back then. This is one of them.

 

Off the top of my head, few others were the APROM EPROM burning cartridge, The Wedge, the Astra dual floppy drive, and the SWP ATR 8000 setup. Other than that, and to a lesser degree, having nothing but Rana or Indus GT drives. Setups like that were what dreams were made of.

 

In any case, this board was always super-unobtainable. It gives you a fast 80 column display, in hardware. I was lucky to pick one up a few years ago. I had always wanted it, as a kid. 

 

The Amiga monitor will be an ugly black text on white background, & will cut the last line off, in the middle of the font. There may be an adjustment for this, inside the monitor. I think that most people ran it with an Amdek monitor. I always wanted to try it with an Apple IIc monitor, and a regular Apple II green screen, but haven't had the opportunity.

 

I'll open my Fullview 80 up and take some pics, perhaps it's a different revision. I noticed a jumper wire on the back of your card, not sure if mine has that.

 

Great that you were able to do the ROM dumps! Since the card uses EPROMs, it would be totally possible to make all new character sets for it. That would be awesome!

 

I really hope that one day this will be both emulated & reproduced. The Action! programming language fully supported this card, and it would be an amazing thing to have both available to modern day programmers, particularly since the last revision of the Action! source code was recently made available.

 

Good job, man, thanks!



#6 Stephen OFFLINE  

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Posted Sat Feb 7, 2015 9:32 PM

Thank you, thank you, thank you.



#7 tschak909 ONLINE  

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Posted Sat Feb 7, 2015 10:04 PM

That's a nice 8021 based design, for sure. It is definitely a simpler design to manage on a card that size, than, say, a 6845 based design.



#8 AtariGeezer OFFLINE  

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Posted Sun Feb 8, 2015 6:12 PM

That's a nice 8021 based design, for sure. It is definitely a simpler design to manage on a card that size, than, say, a 6845 based design.

The LSI on the Bit3  is a SY6545 CRTC...

 

  Found some other pics:

 

bit3-1.jpg

Bit3-2.jpg

 

And some DataSheets:

 

Attached File  CRT8021.pdf   292.58KB   89 downloads

Attached File  sy6545.pdf   459.24KB   90 downloads

Attached File  MB8128.pdf   303.43KB   69 downloads


Edited by AtariGeezer, Sun Feb 8, 2015 6:15 PM.


#9 Stephen OFFLINE  

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Posted Sun Feb 8, 2015 6:24 PM

Hmmm - I just looked at the ICs I bought a few years back, and they are "SMC CRT9007".



#10 AtariGeezer OFFLINE  

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Posted Sun Feb 8, 2015 6:49 PM

Hmmm - I just looked at the ICs I bought a few years back, and they are "SMC CRT9007".

Hmmmm,  those could be used in a possible new revision, hang on to those :)



#11 bob1200xl OFFLINE  

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Posted Mon Feb 9, 2015 9:27 AM

The 9007 was used in the MIO 80 column card.

 

Bob



#12 Mathy OFFLINE  

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Posted Mon Feb 9, 2015 4:38 PM

Hello Bob

 

Do you have pictures or schematics of the MIO 80 column card?

 

Sincerely

 

Mathy



#13 adam242 OFFLINE  

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Posted Mon Feb 9, 2015 5:37 PM

Thanks for posting this... I owned one of these briefly but let it go way to cheaply on eBay a few years back. Definite seller's remorse.

 

Now that my 800 has become my primary machine, a reproduction FullView 80 (Incognito compatible, of course) would be a very welcome addition to my system.



#14 bbking67 OFFLINE  

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Posted Mon Feb 9, 2015 6:31 PM

I can't believe how rare these things actually are!  Back in the day I got the impression that lots of power users were getting one of these (or the austin franklin)... but they seem less common than other exotic hardware for sure.  I'd love to see a showdown between the Bit3, Austin Franklin and the XEP80 (wasnt there also an 80 column board from the omnimon folks?).  I own the XEP80... pretty slow, but it does produce nice crisp characters on a green screen display.



#15 Mathy OFFLINE  

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Posted Mon Feb 9, 2015 6:52 PM

Hello bbking67

 

The XEP80 isn't really that slow, read all about it here.

 

Omnimon only did software emulation (4 bit wide characters) as far as I know.

 

Sincerely

 

Mathy



#16 bob1200xl OFFLINE  

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Posted Mon Feb 9, 2015 7:25 PM

I have a couple of 80-column cards. I think I posted pictures somewhere in the AA forums... 

 

Bob

 

 

 

Hello Bob

 

Do you have pictures or schematics of the MIO 80 column card?

 

Sincerely

 

Mathy



#17 slx OFFLINE  

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Posted Tue Feb 10, 2015 3:27 PM

Would love a repro 80col card for my 800, too.

#18 gozar OFFLINE  

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Posted Tue Feb 10, 2015 6:27 PM

I'd like to see some 80 col software, starting with a vt100 terminal. :-)

#19 Larry OFFLINE  

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Posted Thu Feb 12, 2015 6:30 AM

@Mathy, et.al.-

 

Look here:

 

http://atariage.com/...tion/?p=3045813

 

-Larry



#20 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 11:30 AM

As promised, here's my contribution to the Bit 3 Documentation Project. I took photos in all stages of assembly, and used a flashlight to illuminate the markings on all ICs. No jumper wire on my board, so there must be some differences with the photos already submitted.

 

Photo Set #1:

 

IMG_3960.JPG IMG_3962.JPG

IMG_3963.JPG IMG_3965.JPG

IMG_3968.JPG IMG_3969.JPG



#21 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 11:35 AM

Photo Set #2:

 

 

Attached Thumbnails

  • IMG_3972.JPG
  • IMG_3974.JPG
  • IMG_3977.JPG
  • IMG_3978.JPG
  • IMG_3981.JPG


#22 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 11:39 AM

Photo Set #3:

 

 

Attached Thumbnails

  • IMG_3982.JPG
  • IMG_3983.JPG
  • IMG_3986.JPG
  • IMG_3987.JPG
  • IMG_3988.JPG


#23 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 11:43 AM

Photo Set #4:

 

 

Attached Thumbnails

  • IMG_3989.JPG
  • IMG_3990.JPG
  • IMG_3991.JPG
  • IMG_3992.JPG
  • IMG_3995.JPG


#24 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 11:45 AM

Photo Set #5

 

 

Attached Thumbnails

  • IMG_3996.JPG
  • IMG_3997.JPG
  • IMG_4000.JPG


#25 UNIXcoffee928 OFFLINE  

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Posted Thu Feb 12, 2015 12:26 PM

Here's the Manual for the Bit3 Fullview 80 card, which was kindly provided by user Warerat, a while back:

 

Attached File  Bit3_UsersGuide.pdf   1.89MB   178 downloads

 






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