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unsigned short current_duty, old_duty, current_duty1, old_duty1;
void InitMain() {
ANSEL = 0; // Configure AN pins as digital
ANSELH = 0;
C1ON_bit = 0; // Disable comparators
C2ON_bit = 0;
PORTA = 255;
TRISA = 255; // configure PORTA pins as input
PORTB = 0; // set PORTB to 0
TRISB = 0; // designate PORTB pins as output
PORTC = 0; // set PORTC to 0
TRISC = 0; // designate PORTC pins as output
PWM1_Init(5000); // Initialize PWM1 module at 5KHz
PWM2_Init(5000); // Initialize PWM2 module at 5KHz
}
void main() {
InitMain();
current_duty = 16; // initial value for current_duty
current_duty1 = 16; // initial value for current_duty1
PWM1_Start(); // start PWM1
PWM2_Start(); // start PWM2
PWM1_Set_Duty(current_duty); // Set current duty for PWM1
PWM2_Set_Duty(current_duty1); // Set current duty for PWM2
while (1) { // endless loop
if (RA0_bit) { // button on RA0 pressed
Delay_ms(40);
current_duty++; // increment current_duty
PWM1_Set_Duty(current_duty);
}
if (RA1_bit) { // button on RA1 pressed
Delay_ms(40);
current_duty--; // decrement current_duty
PWM1_Set_Duty(current_duty);
}
if (RA2_bit) { // button on RA2 pressed
Delay_ms(40);
current_duty1++; // increment current_duty1
PWM2_Set_Duty(current_duty1);
}
if (RA3_bit) { // button on RA3 pressed
Delay_ms(40);
current_duty1--; // decrement current_duty1
PWM2_Set_Duty(current_duty1);
}
Delay_ms(5); // slow down change pace a little
}
}I am sorry, but here is another mistake in this program... There is stated:
But as I think, there is nothing about PWM signal, which should be sent to RC1 and RC2 pins, so this program does not work (the LED's, connected to RC1 and RC2 pins does not light). Please, could you tell, how to correct this program? Thank you.The example changes PWM duty ratio on RC1 and RC2 pins continually. If LED is connected to these pins, you can observe the gradual change of emitted light.
