It's designed for turned pin headers, not square. Mainly to increase the spacing between the Pico and TMS9918A pins, but also because they work better in a socket.

You can send DVI signal over HDMI. The reason for calling it DVI is HDMI requires a license fee. So, we don't support HDMI, it's DVI.

You mean DVI? #nothdmi

Potentially, I know it's possible. Haven't looked into it yet though.

They would be tricky to hand solder. I ordered the stencil. The v0.4 boards were next level again with 0402s and all leadless ICs. It took me quite a while even with a stencil and hot plate.

In other news, another AtariAge member ordered some v0.3 boards and tested on his Colecovision:

https ...

PICO9918 v0.4 finally working.

Apologies in advance for the vertical video 

https://youtu.be/KSbJnAwclQw

Works great! Got the blinkenlights. Much lower profile than v0.3.

When you get around to building one, note there are a few 0 Ohm resistors (jumpers). I recommend omitting the one labelled RST. There's a note about it in the repo.

In fact, I could drag out an old 6502 emulator and put it in the rp2040, and then I could put basic in there with it... wait, stop, that way lies madness! :mrgreen:

That's exactly what the PICO-56 does. Emulates a 65C02, TMS9918A, dual AY-3-8910's, PS/2 keyboard, NES controllers, UART, etc. on a ...

Nice one, Cecil. Note: I will be keeping the firmware (source code) compatible between v0.3 and v0.4+. A couple of the GPIO pins have changed (necessarily) between v0.3 and v0.4, but it's nothing a compile-time flag doesn't fix.

I'm hoping to get my hands on a Colecovision soon. One of the very ...

Still waiting on parts to assemble, but the v0.4 PCBs have arrived and look great. Seen here next to their prototype predecessor and an original TMS9918A.

Given this is my first PCB designed to take an RP2040 directly, I wouldn't be surprised if there are issues, but hoping for a usable board. I ...

Interesting day, interesting new wing. I'll be giving it some more time on Tuesday, with luck and a headwind... an interesting change to go from a too-big top-end 'A' wing to a mid 'B' a size smaller :mrgreen:

Neil

Seen a few paraglider videos - looks awesome. Not sure there's much of a ...

Learned how to fly glider in my 20’s; wonderful experience mostly, but what forced me out was banking hard in thermals, all that shaking and circling in >45 degree bank caused nausea and disorientation. I don’t have the right stuff to do long distance flying. Still go for a glider ride once in a ...

rather than tiles, which are good for games, perhaps use a linked list of lines - one-pixel lines. Then you can scroll by updating the list. There's a per-line overhead of dereferencing the line address for each line output to the screen, but there's always time in hsync to do stuff so that shouldn ...

Fair enough.

You'll find generating the VGA frame on the fly (one scanline at a time) isn't too intensive. Even if it keeps one of your CPU cores 100% busy (it won't), you still have another whole CPU core to play with

Hey. Nice work!

I would definitely consider a tile map for text mode. You could then even support a circular buffer for storing the tile ids. That way, scrolling the screen is as simple as updating the start address to render tiles from. Or you could do a basic tile map, then you only need to move ...

Nice one. I (almost) always get the slow-boat shipping. It's still reasonably quick for the price.

I still don't understand the pricing. I can get boards manufactured and shipped here for less than I can send a similarly sized package within Australia.