PIC12F1840 & serout2
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  1. - 8th February 2019, 00:29 #1
    rocket_troy's Avatar
    rocket_troy
    rocket_troy is offline Junior Member
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    Default PIC12F1840 & serout2

    Hi,
    Anyone used the PIC12F1840 with serout2? Any tricks to it? I can't get anything out.

    Regards,

    Troy
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  2. - 8th February 2019, 07:17 #2
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    HenrikOlsson
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    Default Re: PIC12F1840 & serout2

    Can't say I've used that specific command with that specific part but apart from the usual stuff* I don't see why it shouldn't work.

    * Where the usual stuff would be:
    Correct oscillator configuration.
    Analog functions on pin(s) in question turned off.

    The 12F1840 does have an EUSART, use that instead - if you can.

    If you need further help post the code.

    /Henrik.
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  3. - 8th February 2019, 07:44 #3
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    Default Re: PIC12F1840 & serout2

    there may be a clue in the manual

    SEROUT2 is not supported on 12-bit core PIC MCUs due to RAM and stack constraints.
    '
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  4. - 8th February 2019, 11:28 #4
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    Default Re: PIC12F1840 & serout2

    Damn, I can't believe I missed that. Thanks for the answer Richard. I only need a really slow baud rate so I might try the old serout. Failing that, it'll have to be the EUSART although my experience with the EUSART on the PIC18F14K50 is it chewed up a quite a bit of juice when enabled...

    Cheers,

    Troy
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  5. - 8th February 2019, 11:55 #5
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    Default Re: PIC12F1840 & serout2

    Ummm... now reading p10 of the datasheet "This family of devices contain an enhanced mid-range 8-bit CPU core". So, I'm guessing it's not 12 bit?

    Troy
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  6. - 8th February 2019, 12:55 #6
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    Default Re: PIC12F1840 & serout2

    Okay, the EUSART seems to work fine and doesn't appear to consume any noticable extra power for this chip so hardware serials comms it is.

    Troy
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