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For original Famicom D0 is available only internally on the hard wired controllers, the signal to use on the DB15 is D1. My pinout is base on official Nintendo schematic. |
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Ah ok, because I was being super confused by this: BlueRetro/main/wired/npiso_io.c Line 24 in b7b72e0 P1_D0 is allocated a GPIO which was confusing me as I couldn't find it anywhere on the DB15. Am I right in thinking that most Famicom software will allow player 1 input from the expansion port? |
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Hello,
A mistake is on the 15 pin connector. P1-D0 is nowhere.
I think the D signals have bad labels. D0 ~ D4 needs to be renamed to D0 ~ D2 maybe ?
I found the pinout on another website to cross the pinout from NES to 15pin famicom, and it worked.
https://github.com/darthcloud/BlueRetro/wiki/BlueRetro-Cables-Build-Instructions#fc--nes-adapter-cable
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