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2938 Views 2 Replies Latest reply: Jul 3, 2014 10:25 PM by baycollie RSS
Currently Being Moderated

Jun 28, 2014 3:59 AM

PIC Programming

hie guys

 

am doing a project of the telephone dialler for burglar alarms. my problem is, how to interface the 16f84pic with the max232 using mikroC

  • MicrochipRTCfr Apprentice 91 posts since
    Sep 4, 2012
    Currently Being Moderated
    Jun 28, 2014 5:40 AM (in response to finigaz)
    PIC Programming

    Hi,

    Just search for "PIC16 DTMF generator" in g..gle and you should find lots of examples for various PIC16.

    BTW PIC16F84 is a dinosaure....very very old PIC. I suggest you use something more recent. You can use MAPS PIC parametric selector to select a PIC which has the features you are looking for

    Regards

  • baycollie Novice 9 posts since
    May 29, 2014
    Currently Being Moderated
    Jul 3, 2014 10:25 PM (in response to finigaz)
    PIC Programming

        It is not real clear what the purpose of your connection is. The max232 basically shifts serial communication RS232 voltage levels to TTL voltage levels for using an RS232 serial interface. It is usually connected to the recieve and transmit pins on a microcontroller with a built in UART. The PIC16f84 does not appear to have a built in UART according to it's datsheet, To program the flash it uses "in circuit serial programming". Here is a link to Microchip's in circuiit programming guide that references programming the flash on the  16f84.

     

    http://ww1.microchip.com/downloads/en/DeviceDoc/30277d.pdf

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