Using P18f4580 controller - Write a program in C using Timer1 and the largest prescaler possible...

Using P18f4580 controller - Write a program in C using Timer1 and the largest prescaler possible to generate a square wave with a frequency of 2.5kHz on PORTC RC5? (Assume XTAL = 20 MHz).

Expert Solution

The C program for P18f4580 IS USED TO GENERATE A SQUARE WAVE ON PORT RC5 this is given as follows:

----------------------------------------------Code-----------------------

#include <p18F458.inc>
   ORG 0x00
   GOTO START
   ORG 0x30
START BCF TRISB,5
   MOVLW 0x30
   MOVWF T1CON
HERE MOVLW 0xFF
   MOVWF TMR1H
   MOVLW 0xCB
   MOVWF TMR1L
   BCF PIR1,TMR1IF
   CALL DELAY
   BTG PORTB,RC5
   BRA HERE
DELAY BSF T1CON,TMR1ON
AGAIN BTFSS PIR1,TMR1IF
   BRA AGAIN
   BCF PIR1,TMR1ON
   RETURN
   END

--------------------------------------------------------------------------------------------------------------

The code generates a square wave on port RC5.

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venereology answered 1 year ago

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