What useful permanent peripherals via the expansion port?

Discuss hardware-related topics, such as development cartridges, CopyNES, PowerPak, EPROMs, or whatever.

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Myask
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Re: What useful permanent peripherals via the expansion port

Post by Myask » Sat Jul 15, 2017 4:29 pm

^^^boo. If we're gonna do that, bar/dotcode instead, be an e-Reader.
rainwarrior wrote:Would some kind of IRQ be of any use? Or is that too much easier to just build into the cartridge?
It's of some use; it lowers per-unit cart cost by putting it in the expander
You have A15 on the expansion connector, so you could practically just run traces A0-8 and R/W to EXP lines, and have the expansion device (the 16XDD) decode what ports do what.

Actually, that brings up a novel, but silly use of one EXP pin: giving A15 proper to the cartridge. This would also serve as a way to hard-require the device's installation for playing a game.

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FrankenGraphics
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Re: What useful permanent peripherals via the expansion port

Post by FrankenGraphics » Sat Jul 15, 2017 4:40 pm

Myask wrote:bar/dotcode
Like this? Not to be confused with the Virtual Boy - but it will hurt your eyes all the same if you do :lol:
http://www.frankengraphics.com - personal NES blog

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Myask
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Re: What useful permanent peripherals via the expansion port

Post by Myask » Sat Jul 15, 2017 4:49 pm

like the Barcode Boy or the GBA e-Reader…though I suspect having an insert+remove-style would be better for a home-console.

Magnetic strip reader! card-chip reader! Credit-card requiring home arcade games!


vvv Yeah, or that; forgot as-unfamiliar what the NES version was.
Last edited by Myask on Sat Jul 15, 2017 4:58 pm, edited 1 time in total.

lidnariq
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Re: What useful permanent peripherals via the expansion port

Post by lidnariq » Sat Jul 15, 2017 4:53 pm

Or the Datach...

tepples
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Re: What useful permanent peripherals via the expansion port

Post by tepples » Sat Jul 15, 2017 5:43 pm

Except nowadays the e-Reader is so forgotten that people think it means an electronic device to display downloaded books.

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