Interfacing PIC Microcontrollers, 2nd Edition

Answers to Questions

Answers 1

Answers 2

1.
(a) Load the working register with the number 0FFh (sets all bits)	(2)
(b) Jump to a subroutine starting with the label ‘delay’ and return afterwards	(2)
2.
(a) CODE: indicates start of program code	(2)
(b) EQU: declares a constant label	(2)
(c) #INCLUDE: insert source code text file	(2)
3.	GOTO, SLEEP; program will run through blank locations and repeat	(3)
4.	Address, register	(2)
5.	Power-up timer enable, watchdog timer enable, clock oscillator type select	(3)
6.	A bit test is used to determine whether the next instruction is skipped or not (BTFSS, BTFSC). This is usually followed by a GOTO or CALL to change the program ...