As you know the 18f4550 has only 35 i/o ports so to increase the pincount i am trying to link a atmega128 with the PIC since it is cheap and easily available . The fastest way of communication between these ICs will use most of the i/o pins from the PIC the problem is i have to communicate between other modules with ethernet protocol in the near future so i am planning to use an Arduino uno bootloader with the secondary chip and it will also act as a fail safe.
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