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  1. #11

    Default Re: Help with PIC16f877


    salamat kaayo mga master! daghan kog nakat-unan. update lang nya ko if naay problem or if successful na amu project. ^_^

  2. #12

    Default Re: Help with PIC16f877

    way blema bai superzoy98. asa diay ka ron nag-ojt bai? nindot lagi dira kay naa mga project. ako sauna kay didto man ko sa abscbn. sige lang ko katulog ngadto. hahaha

  3. #13

    Default Re: Help with PIC16f877

    good luck sa imung ojt bro. base from your ojt experience, f u really want to pursue being an embedded systems engineer or a firmware developer, you should also be concerned with the design of your hardware. be aware of voltage tolerances and amplification. for analog, pagwapahai og waveform. e.g. some 7 segments dali ra muinit or dli bright ang output. just widening your career path. stay passionate!

  4. #14

    Default Re: Help with PIC16f877

    UP!

    Saonz karun lang man ko kabantay ani na thread.

    Anyways wa pa ni nahuman TS?
    Asa diay ka ga work? Pwedi ta ka apply dra? hehehe

    Anyways to save pins sa PIC pwedi ka mag multiplexing TS.
    Parallel connected lang ng 3 ka seven segment nimo.
    Then ang common nila maoy pa puli pulihon nimo ug sige.
    So 10pins lang ang need nimo sa PIC, for the 7segments.

    Please see my demo board, using PIC16F887.
    All the seven segments are connected in parallel sa PORTB and ang common nila naa sa PORTE.




    And kani count-up timer sa demo board ko before sa PIC16F887 gihapon but with four 7segments, same connections.



    PIC16F887 is the improved version of PIC16F877, much cheaper and naa mga nice features na gidugang.

    I agree sa paggamit nimo ug interrupt.
    Daghan clase ug interrupt.
    Kana imo gigamit external interrupt na sya, w/c is as you mentioned naa sa RB0.

    Every time naay interrupt na mahitabo, muadto sya sa 0004H address sa program memory, like what master stealthghost had mentioned. But sa mikroC if naay interrupt, i-call lang niya ang interrupt routine. Didto ka mag test if external interrupt ba jud ang naka trigger.

    If ongoing pa ni na project, post lang dri kay ato lang hinay hinayan ug tabang.

  5. #15

    Default Re: Help with PIC16f877

    I envy you red_horse.. kung mahuman na ko diri sa akong trabaho.. balik jud ko'g microcontrollers.. hehehe.. I really love to innovate.. especially with hardware..

    where na man ka trabaho ron bro?

  6. #16

    Default Re: Help with PIC16f877

    OT,
    Ahahaha I envy you more sir stealthghost... kay unemployed jud ko karun.
    Medyo nalingaw pa ko duwa sa ethernet module ug PIC18.
    Mao nga reluctant pako mang apply sa dili inline sa akong hilig and field.
    Nindot kaayo ning gi OJThan ni TS kay gagamit PIC mcu.

    Makahurot jud ug kwarta ning bisyo sa mcu.

  7. #17

    Default Re: Help with PIC16f877

    naa unta sa Kyocera bro.. nag hiring sila.. Firmware developers ang gipangita.. basin ganahan ka bro? kay i-recommend tika pina-agi sa akong amigo..

  8. #18

    Default Re: Help with PIC16f877

    If I remember right, there are three(?) interrupts sa PIC- external, timer-based/internal ug kalimot ko sa isa. When an interrupt happens, the PIC will go to the interrupt routine. inig program nimo kay you can put what happens inside the void interrupt() procedure so it is very flexible.

  9. #19

    Default Re: Help with PIC16f877

    There are a numerous interrupts sa PIC16F877A ug sa uban PICs.
    Kanang naa sa red circle mao na mga interrupts sa PIC16F887, which is very similar sa PIC16F877A.




    Most likely mao sad na mga interrupts sa PIC16F877A.



    Pssssst TS unsa na'y update sa imo project?

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