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  1. Replies
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    Re: Rfid read procedure

    i guess you saw this thread , post #12
    http://www.picbasic.co.uk/forum/showthread.php?t=19596&highlight=rfid

    if you get past the stumbling block of actually reading a card you could well be the...
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    Re: receive and display strings

    and what do one of these "strings" look like.

    before you can parse the data you need to identify :- the start of the string , identity of each data element in the string and the end of the string...
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    Re: PIC19176 Configuration bits

    where most things reside these days
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    Re: PIC19176 Configuration bits

    #CONFIG
    CONFIG FOSC = INTIO67 ; Internal oscillator block
    CONFIG PLLCFG = ON ; PLL Control
    CONFIG PRICLKEN = OFF ; Primary clock can be disabled by software...
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    Re: PIC19176 Configuration bits

    they don't



    #CONFIG
    __CONFIG _CONFIG1, _FEXTOSC_OFF
    __CONFIG _CONFIG1, _RSTOSC_HFINTPLL
    etc

    you cannot do this, its syntatically incorrect
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    Re: PIC19176 Configuration bits

    this format ?

    #CONFIG
    cfg1 = _FEXTOSC_OFF
    cfg1&= _RSTOSC_HFINTPLL
    cfg1&= _......
    __CONFIG _CONFIG1, cfg1
    #ENDCONFIG
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    Re: MCC Configurator

    ditto for pins, there's not much to it except that
    for things like
    IOCAFbits.IOCAF4 = 0;

    become
    IOCAF.4 = 0;


    as the microchip bits definits don't seem to work for pbp
    IOCAF.IOCAF4 = 0;...
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    Re: MCC Configurator

    in your mplabx project folder will be a folder "mcc_generated_files"
    in there a C file for each configured "module"

    eg
    mcc_generated_files/pin_manager.c
    mcc_generated_files/spi

    spi.c has...
  9. Re: Using old tricks on "new" hardware can yeld nice results (1602 LCD hack)

    What amoque said plus putting display in freezer to slow it down
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    Re: Voltage Question

    GA301A ? google says thats a scr

    i would google "logic level mosfet selector" and pick something at least 100v rated and capable of switching intended current @50v
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    Re: Voltage Question

    if by fet you mean mosfet that switches any appreciable current ,i very much doubt you can discharge the gate capacitance adequately that way. switching loss would be pretty high
    i would use...
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    Re: Port Fall>Rise & Rise>Fall time

    to prove your measurement run the output through a 74f04 and compare edges
    74f series typical 5ns rise/fall times. 40-50ns is hct cmos timing
    probes and the scope add c and need to be...
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    Re: Port Fall>Rise & Rise>Fall time

    but what are you measuring and what with ? and what vcc ?
    i suspect mc rise time is vol_max to voh_min as per their diagram [ which specifies very little that i can see]
    fall time would be ...
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    Re: ESP8266 wifi module?

    love them.

    re purposing sonoff's is especially useful
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    Re: Forum doesn't quite work when not logged in.

    thanks for the file sizes lester, seems i need to try a bit harder to compress images from the 16MP camera on my new phone.
    a file too big error msg would be nice.



    my browser forum shortcut...
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    Re: Forum doesn't quite work when not logged in.

    lester

    i could not get to the login screen, just got (HTTP ERROR 500)

    re-uploads , i was trying to upload two files , one text the other an image
    upload went through the motions but nothing...
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    test upload file

    test of file upload
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    Re: String matching?

    i might have got a picture of the printout to load



    8820
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    Re: Forum doesn't quite work when not logged in.

    lester
    I cannot upload any files using chrome, Microsoft edge is on test section
    but nowhere else it seems
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    Re: Forum doesn't quite work when not logged in.

    i cannot upload any files today at all, had no access all to forum last week either
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    Re: String matching?

    just as a comparison , this is so easy to accomplish in C

    the forum seems to be broken , can't upload any pics of the printout



    #include <xc.h>

    #include "ks0108.h"
    #include <stdlib.h>
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    Re: String matching?

    compare macro fwiw

    CMPEQ?BBL macro Bin1, Bin2, Label
    CLRWDT?
    MOVE?BA Bin1
    CHK?RP Bin2
    subwf Bin2, W
    BIT?GOTO 1, STATUS, Z, Label
    endm
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    Re: String matching?

    there are numerous strategies possible
    if you had a byte var say chr2test , you can write wreg to that byte that a pbp macro
    MOVE?AB _chr2test
    and then perform your tests

    or subtract the...
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    Re: String matching?

    with a bit of asm and a pic18 you can set the tablepointer to keywords

    movlw UPPER Keywords
    movwf TBLPTRU
    movlw HIGH Keywords
    movwf TBLPTRH
    movlw LOW Keywords
    ...
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    Re: String matching?

    i would be inclined to -
    make a fixed length array for all the key words, sort the elements into ascii order
    its much easier and faster to seek matches that way
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