Sporniket's log on hardware stuff

[sporniket]

Release Candidate #2 coming soon...

2021-07-02--ERC-ok.png (22.34 KiB) Viewed 4373 times

Edit : the pdf of rc2

c300780-001--Atari-STe-Motherboard.pdf

(2.42 MiB) Downloaded 123 times

[sporniket]

After the tedious task of designing and assigning footprints, let's start the fun !

2021-07-10--entering-the-dungeon.png (296.42 KiB) Viewed 4335 times

What's nice, is that all the components from the same subsheet are grouped together in an easy to select rectangle, allowing to work sheet by sheet.

2021-07-10--wip.png (836.66 KiB) Viewed 4335 times

I don't plan to do the full trace -yet, never say never-, but while placing, I can trace some obvious paths.

I also plan to promote the Kicad project into its own github repository. For now I prepare the git submodules regarding the custom libraries (symbols, footprint and 3d shapes)

[sporniket]

done placing component from sheet 5 and 6 (I'm going backward)

2021-07-12--sheet-5-to-6.png (114.5 KiB) Viewed 4302 times

[exxos]

Taking shape

[DoG]

4 layer or are you doing 2 layer?

[sporniket]

Taking shape

Yes

4 layer or are you doing 2 layer?

4 layers, with ground planes on the 2 inner layers.

[sporniket]

Today's progress : sheet 4 is done, and sheet 3 is started, with the floppy drive circuitry.

2021-07-14--wip.png (179.81 KiB) Viewed 4255 times

[sporniket]

2 sheets of components remains to place before doing some more routing. And for that I will need to disassemble my STe more thoroughly to get the motherboard and take plenty of pictures of the solder side.

2021-07-14--close-up--dma-and-co.jpg (206.75 KiB) Viewed 4229 times

and a little timelapse (very flickering as I alternate between pictures and kicad)

[DoG]

Great progress!

[sporniket]

Great progress!

thanks