PIC18F4680 to PC via MAX232 (RS232 serial) no output


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  1. #1
    Join Date
    Sep 2006
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    Hello. Invert TX and RX on PIC side.

  2. #2


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    Yup, like Raflex says, you gotta do the null modem thing. PIC RX to PC TX and PIC TX to PC RX. And you gotta make sure the polarities out of the MAX chip are right. But it looks like swapping the RX and TX on the PIC side ought to do it.
    Tim Barr

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