Alterar código de 16f pra 18f

Rafael da Silvaa · 11 de maio de 2016

Eu tenho um programa que uso pra 16f877a, que controla 2 saídas pwm. Minha intenção é usar esse mesmo programa em 18f452 e 18f6520, não se se há diferença entre os dois (em relação à programação). O código funciona normalmente, já implementado em circuito real, no 877a. Já tentei o óbvio, só tacar no compilador e botar pra jogar pra 18f, mas não vai. Alguém sabe o que tenho que mudar? O código é:

#define _XTAL_FREQ 20000000
#define TMR2PRESCALE 4

#include <xc.h>

// BEGIN CONFIG
#pragma config FOSC = HS // Oscillator Selection bits (HS oscillator)
#pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT enabled)
#pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled)
#pragma config BOREN = ON // Brown-out Reset Enable bit (BOR enabled)
#pragma config LVP = OFF // Low-Voltage (Single-Supply) In-Circuit Serial Programming Enable bit (RB3 is digital I/O, HV on MCLR must be used for programming)
#pragma config CPD = OFF // Data EEPROM Memory Code Protection bit (Data EEPROM code protection off)
#pragma config WRT = OFF // Flash Program Memory Write Enable bits (Write protection off; all program memory may be written to by EECON control)
#pragma config CP = OFF // Flash Program Memory Code Protection bit (Code protection off)
//END CONFIG

long freq;

int PWM_Max_Duty()
{
  return(_XTAL_FREQ/(freq*TMR2PRESCALE);
}

PWM1_Init(long fre)
{
  PR2 = (_XTAL_FREQ/(fre*4*TMR2PRESCALE)) - 1;
  freq = fre;
}

PWM2_Init(long fre)
{
  PR2 = (_XTAL_FREQ/(fre*4*TMR2PRESCALE)) - 1;
  freq = fre;
}

PWM1_Duty(unsigned int duty)
{
  if(duty<1024)
  {
    duty = ((float)duty/1023)*PWM_Max_Duty();
    CCP1X = duty & 2;
    CCP1Y = duty & 1;
    CCPR1L = duty>>2;
  }
}

PWM2_Duty(unsigned int duty)
{
  if(duty<1024)
  {
    duty = ((float)duty/1023)*PWM_Max_Duty();
    CCP2X = duty & 2;
    CCP2Y = duty & 1;
    CCPR2L = duty>>2;
  }
}

PWM1_Start()
{
  CCP1M3 = 1;
  CCP1M2 = 1;
  #if TMR2PRESCALAR == 1
    T2CKPS0 = 0;
    T2CKPS1 = 0;
  #elif TMR2PRESCALAR == 4
    T2CKPS0 = 1;
    T2CKPS1 = 0;
  #elif TMR2PRESCALAR == 16
    T2CKPS0 = 1;
    T2CKPS1 = 1;
  #endif
  TMR2ON = 1;
  TRISC2 = 0;
}

PWM1_Stop()
{
  CCP1M3 = 0;
  CCP1M2 = 0;
}

PWM2_Start()
{
  CCP2M3 = 1;
  CCP2M2 = 1;
  #if TMR2PRESCALE == 1
    T2CKPS0 = 0;
    T2CKPS1 = 0;
  #elif TMR2PRESCALE == 4
    T2CKPS0 = 1;
    T2CKPS1 = 0;
  #elif TMR2PRESCALE == 16
    T2CKPS0 = 1;
    T2CKPS1 = 1;
  #endif
    TMR2ON = 1;
    TRISC1 = 0;
}

PWM2_Stop()
{
  CCP2M3 = 0;
  CCP2M2 = 0;
}

void main()
{
  unsigned int i=0,j=0;
  PWM1_Init(5000);
  PWM2_Init(5000);
  TRISD = 0xFF;
  TRISB = 0;
  PWM1_Duty(0);
  PWM2_Duty(0);
  PWM1_Start();
  PWM2_Start();
  do
  {
    if(RD0 == 0 && i<1000)
      i=i+10;
    if(RD1 == 0 && i>0)
      i=i-10;
    if(RD2 == 0 && j<1000)
      j=j+10;
    if(RD3 == 0 && j>0)
      j=j-10;
    PWM1_Duty(i);
    PWM2_Duty(j);

    __delay_ms(50);
  }while(1);
}