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PIC blinked

pic16f887/pic16f877a & pic16f18877

Blinking LED

  • First, use the MPLAB X to generate hex;
  • Then, use protelus to draw “Schematic Capture”;

blink-16f877a

  • Finally, import the hex file into the MCU component.
Right-click the "mcu" icon and select "Edit Properties".

load hex

PIC16F887

  • LED
  • 470R Resistor
  • 8Mhz Crystal
  • Two 22pF capacitors in parallel
    PROCESSOR   16F887
#include <xc.inc>

  config FOSC=INTRC_NOCLKOUT
  config WDTE=OFF, PWRTE=ON, MCLRE=ON, CP=OFF, CPD=OFF, BOREN=OFF, IESO=OFF, FCMEN=OFF, LVP=OFF

#define Count1 0x20
#define Count2 0x21

PSECT   MainCode,global,class=CODE,delta=2
MAIN:
    BANKSEL     TRISB
    BCF         TRISB,0
    BANKSEL     PORTB
MainLoop:
    BCF         PORTB,0
    CALL        DELAY3
    BSF         PORTB,0 
    CALL        DELAY3
    GOTO        MainLoop

DELAY3:
    DECFSZ      Count1,1
    GOTO        DELAY3
    DECFSZ      Count2,1
    GOTO        DELAY3
    RETURN

END

Ref