Robert, If I were you I would look at replacing the OLD 16F877 with something like an 18F4620. If you are using the 40 pin dip package it should drop right in and the part has LOTS more program memory space and Eeprom. Just about all I use these days is the 18F2620 as I don't need all the pins but it has the same amount of memory. Just a thought....
Dave Purola,
N8NTA
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