rs232 without RC6,RC7

[hOL]

Help, I must use rs232 without RC6,RC7 how I can do it on RA4,RA5
PIC18F452?
How biggest this use resource of my program?

[SherpaDoug]

With a software UART you can use any pins you want. But all other processing will stop while you send or receive characters.

Read about #use rs232 and try it in your code to see how big it is.
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