PIC16F628A Need to Generate 38.3KHZ PWM Burst of 10ms for TSOP1838

[asking]

Hello

I am using MikroC Code for generating PWM signal Code is :-

void main()

{
     TRISB = 0;  // pins are output, GP3 always input
     PWM1_Init(38000);
     PWM1_Start();
     PWM1_Set_duty(120);
while(1){}

}

I got the 38.2KHZ signal of PWM on my CRO. I need Burst of 38.3KHZ signal with 10ms gap. How to generate it ? is it possible with one microcontroller or do i need to use external switch to on/off signal from MCU ? Please help me.

 

[shihab_leo]

hi
it's possible to do this with only microcontroller
you can try this

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Code C - [expand]
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void main()
{
     TRISB = 0;  // pins are output, GP3 always input
     PWM1_Init(38000);
     PWM1_Set_duty(120);
     while(1)
     {
         PWM1_Start();
         Delay_ms(10);
         PWM1_Stop();
         Delay_ms(10);
     }
}

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if you are doing other things too in the code, it probably is a good idea to move the PWM part in timer interrupts

 

[asking]

Thanks it worked