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Re: Sporniket's log on hardware stuff
Posted: 23 Sep 2022 19:55
by exxos
Impressive! :thumbup:
Re: Sporniket's log on hardware stuff
Posted: 23 Sep 2022 20:42
by sporniket
Thanks :)
The PCB representations from the service manual are helpfull, even if it is less accurate than I hoped. At the very least, I have a loose direct visual guide, meaning less instead of switching back and forth between kicad and visual references.
Re: Sporniket's log on hardware stuff
Posted: 24 Sep 2022 00:03
by Badwolf
exxos wrote: 23 Sep 2022 19:55
Impressive! :thumbup:
I concur!
Sure to be an excellent resource. :)
BW
Re: Sporniket's log on hardware stuff
Posted: 20 Oct 2022 07:53
by sporniket
This month step... I could put the eproms and the cartridge port together, even if the cartridge port seems to be a little bit cramped...
subsheet_103-U2-3-4-5-6-7-EPROMs ; J1-Cartridge port.png
Re: Sporniket's log on hardware stuff
Posted: 20 Oct 2022 10:17
by Badwolf
sporniket wrote: 20 Oct 2022 07:53
...even if the cartridge port seems to be a little bit cramped...
That's your controversial portrait A4 layout! ;)
One of the first things I normally do on a new project is change the schematic page size to A3. :)
BW
Re: Sporniket's log on hardware stuff
Posted: 20 Oct 2022 10:53
by sporniket
One of my goal is to use A4, to print it at home without the need to assemble. (and at first, I wanted to work on A5, printed on A4, to have big text for those of us that are presbyopic -me included-)
Re: Sporniket's log on hardware stuff
Posted: 20 Oct 2022 11:10
by Badwolf
sporniket wrote: 20 Oct 2022 10:53
One of my goal is to use A4, to print it at home without the need to assemble. (and at first, I wanted to work on A5, printed on A4, to have big text for those of us that are presbyopic -me included-)
Fair enough. I design on A3 then print on A4 as when I'm assembling stuff I'll have my magna-glasses on anyway ;)
BW
Re: Sporniket's log on hardware stuff
Posted: 12 Nov 2022 17:00
by sporniket
This month I give a little bit of love to my STe. After giving it
a new kind of power supply in the shape of a USB-C Power delivery charger, I made a quick and dirty game controller on a cheap prototype board, so that I can play some games a little.
Well, it was so quick and dirty that I had to fix it two times (second times because I snipped the wrong wires at first... anyway here is a reminder of how the ports are wired, and how a joystick should be wired.
2022-11-12--00-joystick-mouse-ports-pinout.jpg
The top view, don't pay attention to the resistors, it was an uneeded pull that I had to finally snip away (that was the first fix, with exchanging VCC and GND...)
2022-11-12--01-top-view.jpg
The bottom view
2022-11-12--02-bottom-view.jpg
Tested and finally works with the STe remake of Lotus, I will get a disk image of rick dangerous now.
Re: Sporniket's log on hardware stuff
Posted: 20 Nov 2022 10:58
by sporniket
Atari ST schematic and motherboard recreation update : the ROMs are in place, I have put all the trace I could do with certainty or "not too much guess". The left side of the reference board scan is full of faint/erased traces.
2022-11-20--00-routing.png
2022-11-20--01-top-side.jpg
2022-11-20--02-bottom-side.jpg
Re: Sporniket's log on hardware stuff
Posted: 13 Jan 2023 08:18
by sporniket
Now that
the remake of the RSVE's PCB is done, I am back to the remake of the 260/520 ST main board schematics and PCB...
This week I migrated my workstation to the latest LTS Ubuntu, as a consequence
this project is now using Kicad 6.
subsheet_104-U12-GLUE.png