Reference no: EM13675007

Question 1:. Find the duration of the delay of each of the code segments below if the crystal frequency is 16 MHz.

(a)		(b)
COUNTER EQU 0x40		COUNTER1 EQU 0x40
COUNT EQU OxAD		COUNTER2 EQU 0x41
		COUNT1 EQU OxAD
DELAY MOVLW COUNT		COUNT2 EQU Ox7E
MOVWF COUNTER
AGAIN NOP		DELAY MOVLW COUNT1
NOP		MOVWF COUNTER1
NOP		LOOP1 MOVLW COUNT2
DECF COUNTER, BNZ AGAIN	F	MOVWF COUNTER2 LOOP2 NOP
RETURN		NOP
		NOP
		DECF COUNTER2, BNZ LOOP2	F
		DECF COUNTER1, BNZ LOOP1	F
		RETURN

Question 2. What are the values of pons C and ID at the end of each of the following ro

(a)		(b)
ORG Ox10		ORG Ox10
CLRF TRISC		MOVLW 0x14
CLRF TRISD		MULLW 0x19
MOVLW Ox80		MULLW OxIE
MOVWF PORTC MOVLW OxAS MOVWF PORTD		MOVFF PRODL, MOVFF PRODH, END	PORTC PORTD
REPEAT RACE PORTC,	F
BTG PORTD, 5
BTFSS PORTC,	3
BRA REPEAT
HERE    GOTO HERE
END

Question 3. Three LEDs are connected to pins 5 to 7 of port C. Write an Assembly program that will add 10 values that it receives through port B one value at a time. Once the sum of the values reaches or exceeds 0'100', one LED should turn on. Once the sum reaches or exceeds D'150', two LEDs should turn on. Finally, when the sum reaches or exceeds D'200', all LEDs should turn on. Verify the operation of your programs using MPLAB simulator. Include printout of the list file and file registers after execution.

Question 4. Write an Assembly program to find the number of ones in file register location 10H. Verify the operation of your programs using MPLAB simulator. Include printout of the list file and file registers after execution.

Question 5. Write a NOS Assembly program that will read 30 values through port B one value at a time. The first 10 values should be stored in addresses 50H to 59H, the second 10 values in addresses 60H to 69H, and the last 10 values in addresses 70H to 79H. Verify the operation of your programs using MPLAB simulator. Include printout of the list file and file registers after execution.