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Write a program to generate square wave of 500 Hz on P1.0 using Timer 1 of 8051. Oscillator frequency is 12 MHz.
written 5.4 years ago by gravatar for teamques10 teamques10 ★ 64k •   modified 4.4 years ago
microcontroller and embedded programming
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written 5.4 years ago by gravatar for teamques10 teamques10 ★ 64k

Frequency = 500 Hz

l pulse = 1/500 =2ms

1 ms is the ON time and 1 ms is the off time.

Hence a delay of 1 msec is required

count = 1 msec/1μsec = 1000

count = 65536 - 1000 = (64536) count = FCl8H

TL1 = 18 H and TH1 FCH

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