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Good morning Dave! Thank you for volunteering !!! The C64 Rom project is very close to what we need, you can find the schematic here:

Yeah, they are feature packed for sure. Kinda pricy and supply chain hobbled last I looked. How to load to memory is probably Teensy 101 for the Teensy camp. I havent looked at the other projects

Mornin' All, I like the idea of using the Pi Pico.? I've wanted to do a project with one.? The symbol/footprint/3D libraries are available for

The data appears to be in RAM, but there's no clue about how it's loaded. As written it should be all zeros. The schematic is also a bit suspect if you ask me, he's using just a plain jane 74LS245

It looks like the syntax for? the Teensy module is different. There is not CE/trigger so as it sees the addresses it outputs the memory locations to the data bus continously. He calls out where the

Should have ..........said *for* several languages Good program can have several version in different tabs open to compare, good search,? Can easily zoom font for aged eyes.... Quick look at the

I can see the code in the web page and just looking at it I don't see where the rest of the functional parts reside. [email protected]> wrote:

Saving the link saves html for some reason. I've has this issue before. Copy the code from the page then paste it into the IDE or whatever. I use Notepad Plus because it can format/color code the

I'm having a hard time understanding the code. It seems very simple, like something is missing. Where does the data image reside? How do you load

Hi Casey, I understand, believe me know about family health issues. Kicad was just a suggestion, not a requirement. I've done two PCBs in my life. One with Bishop Graphic's red and blue tape and

Not bizarre at all. Seems like a reasonable approach. I'm really not qualified, but I've put together a few questionable board layouts with kicad. If no one competent can be convinced, I'll give

Well hell!!! There it is! [email protected]> wrote:

Here's another...cant get much more compact than this, https://microcorelabs.wordpress.com/2021/03/20/eprom-emulator/

Wow this really is starting to look like the exact thing. https://secure.transtronics.com/I-PKTROM2.htm [email protected]> wrote:

@ Skip, Yeah, I think the name of that branch is 'Keep the uC, replace the CH" So if we attract the furry tailed tree rats with shiny objects to the rabbit holes and knock them in with all the

Looking at the name romulator lead me to this as well. https://z31.com/prom/romulator/ [email protected]> wrote:

I have never used Kicad, I'm an Eagle Cad guy or I would take it on. My other issues are medical issues the wife is having so my time is really limited. I think it's a great idea though. I have never

Just glancing at it, seems like I came across that? one before. There was another one a good while back called the Romulator, German site, I think, It was well before this project.

I'm going to make a bizarre proposal.? Let's redo the Xcat using the Pi Pico as a stepping stone to the X9000. ?We already know everything we need to know about the X and electrically it has the

Yea, but then you have to conform to the SB9600 protocol, yuck! For computer control you'd also need a SB9600 "gateway" or a rib and a serial port, again yuck. 73's Skip