Re: TI-H: Re: IR Link Status (was: expensive remote control)
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Re: TI-H: Re: IR Link Status (was: expensive remote control)
>>>An IR signal sent in the TI protocol can be recieved by multiple
>>>calcs, not only 2.
>>
>>
>>But not sent to specific calculators, and only if responses are ignored.
>
>Can is a word that is often used improperly...
>
>It wouldn't work at all!
>
>Look here, this is the protocall. It involves both calculators reacting to
>the transfers. It just can't listen in becuase it would get off sync!
>
>Calc 1: pull data high
>Calc 2: pull clock high
>Calc 2: pull clock low
>...
>...
>...
>
>This isn't realy what happens, but is close enough. The calculator in
>short, couldn't receive the TI protocall without sending a clock signal of
>its own, which would mess things up.
Which is basically why I'm saying fix the link, not I2C routines. He
did fiddle with the PIC programming to make it work one way, according to
his website, and I believe the speed is slow enough the handshaking won't be
necessary (playing devil's advocate here).
Robert Cicconetti