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THE BOOK of DT's INTERRUPTS is an organization of interrupt service routines and other works written by Darrel Taylor, RIP.

Interrupt routines are arranged per Darrel's original list. Darrel Taylor's Instant Interrupts are an extension of the work of Tim Box whom in October of 2002 wrote INT_CTRL.pbp

Many of the forum members felt this is a long overdue project.

THE BOOK of DT's INTERRUPTS
will be a valuable resource and a tribute to Darrel Taylor the "Fanatical Contributor".

THE BOOK of DT's INTERRUPTS is located at http://dt.picbasic.co.uk/

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  1. Replies
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    Re: symmetric power supply pic 16f877a

    Hi, Josepic

    you should avoid floating point calculations ... it consumes much much time, and your flickering problems probably only come because of that ...

    remember the ADC is only 10 bits,...
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    7
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    657

    Re: OWOUT Glitch

    Hi, Peter

    just some reading ... from that F... Manual, $ 5.27 :



    B.R.
    Alain
  3. Replies
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    4,618

    Re: RETURN command?

    Hi, Mike

    I do not think I'ts a cultural practise, but an old time heritage ...

    Have a look to the very first HP programmable calculators programming examples ( HP27C i.e....
  4. Replies
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    4,618

    Re: RETURN command?

    Hi, Enrik

    I suppose here the "right" Return is selected through some conditionnal choice ... as , once the sub is entered, the first encountered Return loads the program counter the return address...
  5. Replies
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    4,618

    Re: RETURN command?

    Hi, Mike

    May be you should understand what PBP and Generally Basics do at the machine low levels when it reaches such commands ...
    that would help you to understand what possible and what not ......
  6. Replies
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    4,618

    Re: RETURN command?

    you may have more GOSUBs than RETURNs ... ;)

    so, no possible matching test by the compiler !

    Alain
  7. Re: My code for ADC button handling, it works, but can it be slimmed down?

    ADC for ONLY two buttons and " immediate response " ( sic ) ??? ...

    if it's your choice ... go on ! ( :D ) ...

    Alain
  8. Re: My code for ADC button handling, it works, but can it be slimmed down?

    Why not use the genuine BUTTON command ?????????????????

    of course, needs some "brainwork" and practise - and of course at least " read that f...... manual " ... "

    but the result is worth the...
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    Re: issue PBP compile with win10

    +1 ...

    re-install PBP in another place : here it is placed ( by itself ) in " C: Programs ( x86 ) " for years ... but you can create a " C: PBP " folder ( i.e.) ... where you can also place all...
  10. Re: How to remove ghost directory from mocrocode studio

    I do not think this problem is relevant to PBP, but to MCS ( Mecanique )

    you could drop some lines here ;) https://www.mecanique.co.uk/shop/index.php?route=information/contact

    Alain
  11. Re: How to remove ghost directory from mocrocode studio

    Hi, Sheldon

    there's a nice little program called CCleaner that ... cleans all the unwanted "deposits" and old registry entries from your computer ...

    note you can also keep chosen cookies for...
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    Re: Multiplying with 11 using PIC

    just try a 74 HC/HCT 4046 ...:wink:

    Alain
  13. Replies
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    1,831

    Re: Stepper motor question:

    250v applied to +/- 1 Ohm ( NEMA 42 data ) create how much current ??? :rolleyes:

    You were joking, I suppose ...

    Alain
  14. Replies
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    Re: Stepper motor question:

    YES ...

    SURE ...

    Alain
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    2,066

    Re: Psst, Can You Keep a Secret?!?

    Hi, Ioannis

    Even after a thoroughful cleaning, the problem comes again ...

    Working fine here requires The 5.30 Version ...

    Probably a new Win10 " feature " :rolleyes:

    Have a nice day
  16. Replies
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    Re: Psst, Can You Keep a Secret?!?

    Hi, Mpgmike,

    just a question about MPLABX 5.35 : Here ( win 10 up to date ) when I close it ... it automatically re-opens !!!

    so, I had to turn back to V 5.30 ... to get something usable.
    ...
  17. Replies
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    Re: RPM Sensing

    Have a look here : http://support.melabs.com/forum/picbasic-pro-compiler-3-0-and-later/microcode-studio-ide/8240-trouble-writing-code#post8248

    some similarities encountered ...

    Alain
  18. Re: Crystal oscillator variability between PICs?

    Hi, Ioannis

    I didn't receive any notification nor for posts 8 to 11 ... just for the last one ( Yours )

    Best Regards
    Alain
  19. Re: Crystal oscillator variability between PICs?

    If you need high precision timing ... just do use external oscillators like those : https://www.mouser.fr/datasheet/2/96/CTS_11052019_008-0258-0_I_MXO45_MXO45HS-1665263.pdf

    just my two cents ......
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    Re: 12F675 vs 12F1840

    Hi, Ioannis,

    I'd have a look to internal registers PBP default settings ( the PBP default Config file ) ... as you overwrite most of them ...

    just an idea ...

    Alain
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    Re: If ... THEN @ NOP

    Hi, Pedja

    doesn't work Either ... ;)
  22. Replies
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    1,515

    If ... THEN @ NOP

    Could someone explain ...



    IF ACLine == 0 THEN
    @ NOP ' read Line input
    ENDIF


    THIS works ...
  23. Re: PIC18F1220 - Variables initialisation placement makes a change

    Hi, Flotul

    From the very far I remember ...

    ALL Variables have to be initialized before using them ....

    Only one exception : IF you write variables the first time you use them ...

    Say :
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    Re: 12f629 freq divider?

    Hello François

    Have an eye Here: http://www.leapsecond.com/pic/picdiv.htm

    Alain
  25. Re: Anyone worked with reading a sine/cosine encoder?

    Hi,

    have a look here : http://www.robsonco.com/Dinsmore/Compass2-bas%20program.pdf

    site to visit : http://www.robsonco.com/Dinsmore/Untitled_5.html

    Alain
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