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I can't wait to tackle a project like this.

If ordering from PCBway, should we just use the default settings (board thickness 1.6 mm, tented vias, etc)?

When Louis CK makes starts a tech YT channel! (I love Louis CK) ♥

3:45 ... for someone using a german keyboard layout, it is not unexpected 😄

You've been gone awhile. I hope you're okay.

Nice video, keep it up, thank you :)

Mr. Thumps, I am eager to see what graphical wizardry you might accomplish with the Pico 2! Double the RAM!

RP2350? Pimorini 2+?

Fantastic👍 I think i'll have to build me one of these. Much more reasonable price range for me. Great project 😀

Great work! I wish something like this was available for Atari 800..... and that it wasn't necessary to gut a real Atari 800 to do it. It would need some meta keys anyway (menu, pair, mode, etc)

Thank you for using C without a mess of pointers and memory-management. UwU

Amazing work, I really enjoy following your progress.

Hi, have you new projects or plan for PICOCOMPUTER?

I only stumbled across this today - and have binge-watched nearly all of them now ;) Love the idea and the fact it's using the real processor (I've got an FPGA-based board as well but find that lacks the real nostalgia factor). I'd better start saving up to get one for myself! Excellent project and videos.😎

Nice. Subbed. Thank you for making this series. I got plenty of picos laying around. Working a ttl computer at the moment, but will definitely get around to getting some 6502’s and trying this out.

I assembled the non-soldering picocomputer. It starts nicely and I get the "]" prompt and can enter bytes into ram. I entered the helloworld object code into 0200, 0201, etc. But what now? JMP $200 doesn't work at the ] prompt. So I entered 00 02 at fffc and pressed the rest button. No "Hello, World!" displayed. I also tried to enter RESET. Then the system seems to hang up. How do I get the program running?

Where is this sold?

Nice! Enjoyed the video. Thanks for sharing. :)

This reminds me of Japanese 8 bit machines, particularly the Fujitsu FM8. It had a second 6809 CPU for the video, with its own RAM and a bus connecting it to the main CPU. Bandwidth was limited. Similarly MSX had separate video RAM (usually 2x main RAM) with a slow bus connecting the CPU to it via the video chip. It's a shame no western micros adopted that set-up.

David H. Ahl was great. I remember calling him up to ask about the MID$ command since the Xerrox BASIC at school (1978, Yakima) didn't have that and I was trying to figure out a work-around. He took a half hour out of his evening to chat about computers with this kid.

I got the board from you today and ordered the parts from Mouser. I last soldered in a 6502 back in the mid 80s working for a start-up in PDX making telemarketing machines originally out of C64s and Code-a-Phones. We eventually made our own board (but borrowed the C64 kernel) which I drew up by hand in a basement not that far from where you live. Maybe someday we can meet up at the Barley Mill and swap stories. I'm back in PDX after decades away and now live in North Portland.

I hope you make more video around commodore and Picocomputer. I watched all the video a second time. I'm impatiently waiting for other videos and I'm building the picocomputer.

What about a loop that waits till Verticle_Blanking is false.

This is like VGA on a 6502.

Only the third version of the X16 is supposed to be under $100; still great video 👍🖖🙂

Hey Rumble. I've watched most of your videos (thanks), but today this video came right to the top when I searched for "llvm-mos". I'm fascinated by that project (regularly searching for it every few weeks), so I just want to give another thanks for having a talk about it. What great timing. Cheers.

Thanks for sharing. I'm really enjoying this project and can follow along mostly due to your clear presentation style. I would love to hear about you and how it is that you are so good at this :)

Greats video, many thanks. Does using an RP2040 TYPE-C 16MB make sense? Were you able to test it? Can they bring anything to this project?

I think I found an AC version of a gate that may work in place of the 74HC30. The pin-out is different but other than that, it looks like it might work. The chip I found was the 74AC20.

Watched some of these videos a few months ago, then started from the beginning tonight instead of bingeing some starwars show. You go rather fast through a lot of the hardware stuff for a mere software guy like myself, a bit tricky to follow some of it but it's all good. Impressive work dude!

Hi, Your work is insane, congratulations. Is it really possible to access a usb storage now on the Pi Pico ? I always did read comments saying it does not work.

Those is so cool!

Neat!

Can anyone re-assure me? : I think I see bus contention on the first half of the RAM write cycle. When I had assumed that the 6502 transacts the bus on the rising edge, I thought the cunning plan was to replay what had just been programmed into the RAM address in the face of the still-oncoming data - hopefully *the same* (!) but now having had a re-visit of Ben Eater's bus timing video for 6502, I see that the zero mark is the falling edge (of phi_2). So, doesn't the ¬WE of the RAM get cancelled (raised) at one gate delay (U6a) from this fall and then, because the other bus controls of the RAM are tied open, it begins to output on the address which the CPU presently, but not 'too' slowly, begins driving address #and# data for? If you went and single-stepped it like this, couldn't it burn out if you stopped the clock in the wrong half? I haven't delved hard into what the Pico-based clock generator does for its part, but I suppose that could be a very uneven duty cycle only just acceptable to spec on the low period, which might fix things good and well. Otherwise, is there any harm tying U7, pin 10 (U7c output: post-invert of 6502 R/¬W ["RWB"]) to RAM ¬OE (instead of a short to ground)? Bi-directional busses are an absolute terror : I suppose wiring double a data bus (even if only 8 bit) is likewise a board and chip packaging nightmare, so hardly ever done - definitely not the 'commodity' approach - so unavailable (plus we only have so much Pico!)

c64 was my first computer. I have been into computers ever since ❤

This is awesome! 😁

Hello! I just found you and this wonderful project! I am very exited, this is fun stuff! ❤

Sorry French here. I build (soldering) PicoComputer, I have the boot text and cursor blinking. I don't understand what Pico (RIA or VGA) is connected to your personnel computer. On MacOS (Silicon version) it is difficult for me the connection with the PicoComputer. I don't understand (one more time) how to communicated with external USB device (PicoComputer). Thanks for your help.

It's good to know there's still PIO space (and core/s) on a ScanVideo Pico (providing it's not driving the DVI layer too, I guess.) I could not figure that out from the code for myself.

I wish I could go back to the late 70s/early 80s just to see the looks on the faces of the trailblazing genius engineers that first developed the 8 bit micros when they're told that in 45 years people will be building these in an hour on a desk in their bedroom. Long live the 6502. Great video and awesome project. Thank you.

First off, thank you for all your time in creating this project and making it available. I have ordered my kit from PCBWay and am hoping to receive it soon. Just a heads up that, as of 3/20/2024, opting for the $30 ‘Build’ option has resulted in a 36 day delay in shipping. (I’m working with the sales rep now to either improve that date or remove & refund the $30 Build line item so that I can get going on working with the RP6502 as soon as possible. They wanted the Centroid file but accepted that it wasn’t absolutely necessary to place the order. The lack of it, however, does seem to have slowed down their ability to ship the order.)

A brilliant project and excellent videos about it. I've enjoyed building an RP6502 and am enjoying learning how to program it. I also have a Commander X16, an Agon Light, and several other "retro" computers, but they're sitting unused because the picocomputer is more interesting and more fun! I hope to share my programs for it, once they're good enough to be worth sharing.

No experience with the 6502 but I do know C is a poor fit for the Z-80 due to the paucity of registers. What is your opinion on C for the 6502 for speed / efficiency?

This looks fantastic and do-able for me.

have you tried to replace x/8 with x>>3? dunno if that is generating the same asm in the case of cc65. also you should be probably using uint type instead of int. i really like that code as an example how to work with graphics on this board!

If a propeller can do this: th-cam.com/video/tQQVVguMkSU/w-d-xo.html and th-cam.com/video/yfkFCMLfBQo/w-d-xo.html and even 1600x1200VGA, why would you use a pico?

VERY interesting and a great idea. I programmed life on a Sun Sparcstation in C in the 90's directly accessing the frame buffer for speed. Trying to get it fast is a great way to learn to optimise code :) Actually, why is this titled Life on a 6502?

Now do it in assembly.

Fantastic work, been planning to build something like this with a spare keyboard I have and my 3D printing plans were a lot more complex. Yours look really clever and functional. Will comment back once I'm done, thanks!