A worked with a guy that wrote some fast load software, it basically synced the drive and computer to eliminate the handshaking and transfered 2 bits at a time.

I later built a parallel cable from the unused 6522 port in the 1541 to the C64 user port so I could do transfers 8 bits at a time. To use ...

Okay, I finally found something on that printer buffer.. and why does this guy's name sound familiar?

http://mikenaberezny.com/hardware/perip ... 4k-buffer/

.... A few minor modifications to make it run on the 64 ....
Is the source available for others?
TIA!

Hmm.. I think that was around 20 years ago.. It will take me a while to find it if I even still have it.

Looks like there's a copy of tinymon here:

http://www.zimmers.net/anonftp/pub/cbm ...

I was wondering what ever happened to Jim Butterfield, who was sort of a guru in the Commodore world back in the '80s. I found that he passed away just over two months ago, figured I'd pass the news along for those of you that remember him.

I remember one of my big projects back then was modding ...

At a place I worked at back in the 80's we used to use an inverter circuit like that with a 4MHz crystal, then divide it down with a dual flip-flop to get 2MHz and 1MHz signals. If I recall correctly we did that because at the time 4MHz crystals were smaller and cheaper than 1MHz ones and oscillator ...

Of course if you wanted REAL sound you could always use a SID :)

Anyone know of a source for those (besides ripping apart 64s)?

I helped build a time/temp clock for a bank in Philadelphia once, they wanted Westminster chimes so we used a SID chip with the ring modulator bell sound, worked out ...

The third inverter is used as a buffer, to isolate the oscillator from the load.

The menu on the left isn't scrolling with the rest of the page, so part of it at the bottom isn't always visible.

Looks good otherwise from what I looked at.

Congrats on DTM!
Good luck with the new job, sounds like it should be fun.

Here's a page with some info
http://www.gaby.de/z80/uexosc.htm

There might be some differences in the chip selects

http://arcadearchive.org/pinball/sys80/

I'll have to look and see what the exact differences between the 2332, 2532, and 2732 are when I get some extra time..

There's a schematic here:
http://www.zimmers.net/anonftp/pub/cbm/schematics/computers/pet/re/

If you just get a blank image save it and open in an image editing program, for some reason it didn't display properly online for me, but I was able to see it by doing that. Looks like all 2332 ROMS ...

Depending on what you're using the EEPROM for you might also put dip switches or jumpers on the upper address lines (the switch grounds the line when closed, a pullup resistor pulls it high when open) allowing you to select which one of 8 different 8k blocks the computer boots up with.

thanks guys, I've forgotten a lot in 20 years.. lol.

I think I'll stick with a 1MHz clock, I also have a bunch of kinda slow(150ns) 8Kx8 SRAMS, so I could use some of them for my first project and then do a whole 'nother design with a faster clock from scratch later on.

lda!
sta!
jmp!
jmp!
jmp!

It's the Swedish Programmer!!

Is there a link with the Swedish Cook from the Muppets? It most probably is a joke but I don't get it, care to explain? TXS

yes, it's a reference to "jmp! jmp! jmp!" sounding sort of like the Swedish Chef's phrase "Børk! Børk! Børk!"