Re: TI-H: Multimaster I2C routines
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Re: TI-H: Multimaster I2C routines
>
> Josha Foust wrote:
>
> > One of the biggest problems with networking any number of calculators
> > with radio links is that no two calculators could transmit on the same
> > frequency. The best way would be to have a centralized hub, but thats still
> > two frequencies per calculator on the network. I could be wrong about this,
> > because Im not sure how Cell phones handle it... I think a network of
> > calculators is an insane idea anyway!
>
> Nope, it's not a very big problem. The I2C protocol was designed for
> just this purpose, to use only 2 data lines for a network of IC's. And
> you can use I2C on radio networks, so you need only two frequencies for
> the whole network. Only one calculator can transmit at a time, but it's
> not a big problem.
>
Actually this is a very big problem. Even if one could achieve 35kb/s on
every calculator on the network, your throughput would be 35/number of
calculators! So after about 5 calculators you will have very little bandwidth
to work with.
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