# need project lm1889 for the commodore vic20

#### rambo99

Apr 24, 2011
63
Has any one got a LM1889 ic project that will work for a commodore vic20 computer
I need a project for the Commodore Vic20 Computer as the video IC in the Commodore64 and Vic20 will be hard to get has any one got a project that can replace the LM1889 IC was use in the spectrum Z80 computer as there any way I can use this IC in the commodore Vic20 and the C64 Computer All I need is a Project

Last edited:

Apr 7, 2012
3,635

#### CocaCola

Apr 7, 2012
3,635
Rambo, can we keep this conversation in this thread, OK? I just blind deleted 8 PMs for you in regards to this thread, you continued to send them in rapid succession one after another, don't bother sending any more I'm not reading them...

Let's keep everything in this thread, OK?

#### (*steve*)

##### ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
25,505
I really have no idea what you actually want

And it looks like I'm not alone

Hey cocacola

Im still trying to figure out his request as I think you are??
its pretty difficult to understand exactly what is wanted

What we need is a really dumb explanation like:

"I want to be able to plug this into my Vic 20 and have the Vic 20's display converted to work on an LCD monitor."

Concentrate on what has to happen, not what chips will be used.

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#### CocaCola

Apr 7, 2012
3,635
I think what he wants is to replace the Commodore MOS 6560 chip with the lm1889 chip... And the short of it, is NO it's not going to work...

The Commodore MOS 6560 is pretty much an entire graphics and sound processor chip the lm1889 is just a TV video modulator chip... For the \$20 it cost to get a scrap Commodore computer and pull the 6560 chip it's hardly worth the effort or time to build or even fiddle with a replacement circuit... But, if one was inclined I suspect you could port the existing 6560 emulation software for PC game emulators to a micro and likely get a functional 6560 clone up and running, but hardly worth the time or effort...

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