[Coco] 6847 external character generator

Zippster zippster278 at gmail.com
Sat Feb 28 22:53:32 EST 2015


Thanks for that Al, I’d not seen a pic of one before.

I would definitely like to get ahold of as many character sets as I can that were
done previously.  I can include them on the rom (plenty of room).

What is the CIS group?

- Ed


> On Feb 28, 2015, at 9:34 PM, Al Hartman  wrote:
> 
> This is what the original Lowerkit II looks like installed in my main Coco 2 which now has a 63B09E processor:
> 
> https://flic.kr/p/rpHaCu
> 
> This is what the character set looked like:
> 
> https://flic.kr/p/r8mmB8
> 
> I uploaded the manual for the board and character generator software (I have the tape for Charit here somewhere) in 2013 to the archive.
> 
> I have one in my TDP-100, this one, and a third which had the pins crushed and broken and I am in the middle of desoldering and repairing.
> 
> I know I was asked to read the ROM off one or more of them, but the only EPROM programmers I have are the three Coco ones, one is proken, and I don't have a good tape recorder to use the second, and I've never used the disk version of the software for the Color Burner, and don't feel confident that I know how to do it.
> 
> I wish there was a way to read the character set while it was in place. Maybe the the next time I have that Coco 2 setup, I could write a quick BASIC program to display all the characters, and this set could be re-created using Zippster's spreadsheet.
> 
> I seem to remember that there were several character sets uploaded to the CIS group. Some were made by Marty Goodman. I seem to remember that one set was taken from an IBM graphics card and adapted for the Lowerkit. I think this is what's in my TDP-100. I've been on the lookout for an "F" board Coco to resurrect the TDP-100, and a keycap to replace the missing one on the HJL keyboard.
> 
> If I can drag down the TDP off the high shelf, I'll try plugging it in and taking pictures of the inside, and the lowerkit character set. I just cleared my tray table in my bedroom (I repaired three virus infected laptops for friends), so this might be an easy project for tomorrow.
> 
> -[ Al ]- 



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