PIC16F676 RS232 baud rate


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  1. #1
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    Default PIC16F676 RS232 baud rate

    Can you output 19200 baud using the internal "precision +/-1% internal oscillator on a PIC16F676? I have an existing board and suddenly changed from 9600 to 19200 baud...
    Thanks, Jim

  2. #2
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    I don't know anything about that chip, but if the INT OSC is 4MHz then you can run 38,400 if you use a hardware USART, or if you have to bit-bang, you can run 19200 using DEBUG.
    If you are running at 8Mhz, then you can run 57,600 on hardware or 38.4K using DEBUG.

    I run these rates quite often using 18F2221's on their internal oscs.
    Charles Linquist

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    Thanks for the reply... I'll try it out today..
    JR

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