Quote Originally Posted by Charles Linquis
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XPORTs are 3.3V devices. You will need a level shifter to convert from the XPORT to the PIC (I use 74HC gates for this purpose), and I put a 1K resistor in series with the output of the PIC to drive the 3.3V input of the XPORT.
The I/Os of the XPort-03 are 5V tolerant, so no real need for level-shifting.

Quote Originally Posted by Charles Linquis
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Setting up the IP address and other network parameters through the serial port using a PIC is NOT trivial - you have to send it setup records, which are Intel Hex strings.
To be honest, I have never tried to configure an XPort through the serial port, since configuration can be done easily through the Ethernet Port directly or using the DeviceInstaller.

Quote Originally Posted by Charles Linquis
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If you need to do extensive configuration of an XPORT using your PIC, I can give you some pointers.
Charles, I would be interrested in your solution.