Page 53 - DEC40053 Ebook_Timer

TEST

Y O U R S E L F

Q1. Write a C program to toggle all the bits of

PORTB continuously with 1ms delay. Use Timer0,

16-bit mode, no prescaler options to generate the

delay. (Assume XTAL=20MHz)

Q2. Write a C program to toggle only the PORTB.4

bit continuously every 50ms. Use Timer0, 16-bit

mode and the 1:4 prescaler to create the delay.

(Assume XTAL = 20MHz)

Q3. Write a C18 program to toggle only the PORTC3

bits continuously with some delay. Use Timer0, 16-

bit mode, and no prescaler options to generate the

delay (square wave of 50% duty cycle). Set the

register TMR0H = 35H and TMR0L = 00H.

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