RP: Pio backed NEC Ir driver and example.#5354
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CBJamo wants to merge 3 commits intoembassy-rs:mainfrom
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RP: Pio backed NEC Ir driver and example.#5354CBJamo wants to merge 3 commits intoembassy-rs:mainfrom
CBJamo wants to merge 3 commits intoembassy-rs:mainfrom
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Also added public method to invert PIO pin input, though it didn't turn out to be needed for the NEC Ir program.
The original NEC IR uses a 9ms initial burst, followed by a 4.5ms space. I don't know what the name of my samsung tv's protocol, but it uses a 4.5ms burst with the same 4.5ms space. This commit lets you configure the inital burst length when sending an IR command.
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This isn't tested against an actual NEC IR device, because it turns out my TV uses a slightly different protocol, but it does decode correct on my logic analyzer.
The TX driver uses two programs that communicate with an IRQ. Ideally we'd have a way to represent that flag as a singleton so you couldn't cross the streams, but for now I've just documented that the IRQ flag can't be shared.
Also added public method to invert PIO pin input, because I thought I needed that for my hardware, it didn't turn out to be necessary, but someone will need it eventually so it might as well come along for the ride.