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View topic - Custom Card Dev : Mapper Footprint ?

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  • Joined: 24 Oct 2016
  • Posts: 25
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Custom Card Dev : Mapper Footprint ?
Post Posted: Sat Jan 16, 2021 6:09 pm
Hi all !

After having finaly done a successfull mapper on a breadboard only with somes logics IC and a 4MBit Sram, I wanted to do a prototype PCB using a STM32 in order to load rom by USB.

I wrote the schematic in kicad, then realised that it will be realy useless to implement by a fat unhealthy hardware. Maybe just to say : "I did it.".

So my goal now is much simpler, building a 512k with two SRAM, one for the rom and the other for the on-board ram, with the 315-5235 Mapper, and ofc a stm32 (and why not an sdcard slot :) )


Here is my point : Some body have the footprint of the 315-5235 for KiCad ?

Or at least, I didn't have one, but somebody can take measurement for me ?

It seems to be a different proprietary DIP format.

Thanks in advance, and Ill show you all advance in my project !
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  • Joined: 18 Nov 2020
  • Posts: 12
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Post Posted: Sat Jan 23, 2021 5:25 am
Gerry_MAN has a library available for Eagle that includes the 315-5235: http://www.digital-circuitry.com/GameGear_512KB.htm <-- you can grab it there from the "-=My Eagle Schematic Design & PCB Layout=-" section. There seem to be eagle library -> kicad converters out there, but I've never used one so can't vouch for any.

Also attaching a screenshot from the library showing both DIP packages it comes in including scale if that's enough.

Curious to see what you come up with.
315-5235.png (51.17 KB)
315-5235.png

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  • Joined: 24 Oct 2016
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Post Posted: Sat Jan 23, 2021 10:22 am
Excelent, even if I fail converting it for KiCad, you just give me all quotes, so Ill be able to create the footprint anyway.

Thank you very much !
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