After having been down the coprocessor route, i have concluded that they are unnecessary unless you are doing something *super* special. The RC is more powerful than most think. I think coprocs are cool but do not add alot of functionality you did not already have. With a coproc however, you have more stuff to go wrong and more things that you will have to futz with and waste your time.
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Originally Posted by Ben Englert
I was not aware that the iPod had a serial port - is that how it interfaces with the accessories?
I thought it used a USB host controller over the dock connector.
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Modern ipods have a serial port, a usb port(not a host port), and a firewire port on the dock connector.
There is also serial data through the headphone jack.
