Usart compile errors 18F4520

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  1. - 7th May 2009, 00:03 #6
    mister_e's Avatar
    mister_e
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    SPBRG = 25 is 2400 baud @4MHZ, not 16MHz.

    If you need 2400 baud @16Mhz you should try those settings
    Code:
    DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 20h ' Enable transmit, BRGH = 0
DEFINE HSER_SPBRG 103 ' 2400 Baud @ 16MHz, 0.17%
DEFINE HSER_CLROERR 1 ' Clear overflow automatically
    @9600 bauds
    Code:
    DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 20h ' Enable transmit, BRGH = 0
DEFINE HSER_SPBRG 25  ' 9600 Baud @ 16MHz, 0.16%
DEFINE HSER_CLROERR 1 ' Clear overflow automatically
    etc etc etc.

    Try my PICMultiCalc for that.

    Download it from there
    http://www.picbasic.co.uk/forum/atta...7&d=1225550328
    Last edited by mister_e; - 7th May 2009 at 00:07.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
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