how to calculate 1khz frequency to pulse

[raman00084]

how much pulses will be there in a second for 1khz frequency

 

[esp1]

hi,
If I understand your question correctly, there are 1000 pulses/sec in 1Sec of 1kHz.

E

 

[milan.rajik]

If it is 1 KHz AC signal like sine wave or saw tooth then if you represent +ve half cycles by pulses then freq will be 1KHz. You can use ZCD. When signal first crosses zero then a pulse is formed that is goes high and at the next zero cross it goes low. This way freq will be 1 KHz only. On every zero cross you toggle between 0 and 5V.

 

[nagkiller]

I use the formula to generate the desired frequency:
F=(1/T)
And result divide by 2 for time ON and time OFF for 50% duty cycle.

Ex: 1.000Hz = (1/1000)/2 = 0.000.5s

Time = 500us

In pic CCS is:

void main(void) {
    while(TRUE) {           // Produces a 1khz square wave on pin B0
        output_high(PIN_B0);
        delay_us(500);
        output_low(PIN_B0);
        delay_us(500);
    }
}