[SOLVED] PIC 16F877A PWM Implementation Help Required

[asking]

Hello,

I have been confused about using the PWM in PIC16F877A, I have used PWM in 16F628A, it seems to be much easier while using with mikroc but in PIC16F877A when i tried to compile code it says...PWM1_Init(5000); is not valid parameter...or something like that error...

I read the Datasheet of PIC16F877A, but m not clear about it.... Which other Registers need to be set...before Initializing PWM1 and PWM2... could anyone brief me ? please...

 

[hexreader]

Make sure PWM library is selected in library manager.

This code works for me:

// very simple PWM test

void main()
{
    PWM1_Init(5000);
    PWM1_Set_Duty(30);
    PWM1_Start();

    while(1);           // loop forever
}

 

[asking]

ok i got it...

library function should be called in this order only else it will give error

PWM1_Init
PWM1_Set_Duty
PWM1_Start
PWM1_Stop

so actually i was starting before setting the Duty cycle so...

 

[Tahmid]

ok i got it...

library function should be called in this order only else it will give error

PWM1_Init
PWM1_Set_Duty
PWM1_Start
PWM1_Stop

so actually i was starting before setting the Duty cycle so...

It should be okay to start the PWM before setting the duty cycle. That shouldn't be the problem. The initialization statement just needs to be at the beginning.