Microprocessor Ece Lab Manual

8/10/2019 Microprocessor Ece Lab Manual

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EC2257- MICROPROCESSOR AND MICROCONTROLLER LAB

Vi INSTITUTE OF TECHNOLOGY

SIRUNKUNDRAM-60310

D!"#$%&!'% () E*!+%$('i+, #' C(&&.'i+#%i(' E'/i'!!$i'/

DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING

EC230- MICROPROCESSORS AND MICROCONTROLLERS LAB

DEPT OF ECE Vi INSTITUTE OF TECHNOLOGY A UNIT OF Vi MICROSYSTEMS PVT LTD


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E4PERIMENTS IN SYLLABUS

06 PROGRAMING

1. Programs for 16 bit arithmetic Operations2. Programs for Sorting and searching

3. Programs for String Manipulation

4. Programs for Digital clock

INTERFACING E4PERIMENTS

1. nterfacing !D" and D!"

2. nterfacing #ith $2%&'$2(&'$2(3.

3. nterfacing #ith stepper Motor and D" motor

COMMUNICATION BETEEN TO MP KIT

1. Serial "ommunication )et#een *#o MP kit using $2(1.

2. Parallel "ommunication )et#een *#o Mp kit using Mode 1 and mode 2 of $2((.

051 PROGRAMMING

1. Programming using !rithmetic'+ogical'bit Manipulation

2. Programing in *imer'nterrupt',!-*3. "ommunication b# $/(1 and P".

B$#'+ E*!+%$('i+, #' C(&&.'i+#%i(' E'/i'!!$i'/



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CONTENTS

Sl.0o Date periment Page

0o

Signature

1

2

3

4

(

6

%

$

&

1/

11

12

13

14

1(

16

1%

1$

E4 NO STUDY OF 06 KIT

DATE



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AIM

*o stud about the $/$6 microprocessor kit.

HARDARE SPECIFICATIONS

1 CPU PROCESSOR AND CLOCK FRE8UENCY

ntel $/$6$/$$ "P, at (4.%% M5 clock rate Optionall $ M57

2 MEMORY

MO0*O- P-OM8 9///8//// : 3999 for 16 ;

P-OM


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POER SUPPLY SPECIFICATIONS

Model8 SMPS:/1

Mains8 23/ >olts !" at (/ 5

nput8 23/> !" at (/

Output8 1A ( >olts' 3 amps regulated

2A 12 >olts' 2(/ m! regulated

3A : 12 >olts' 2(/ m! regulated

4A 3/ >olts' 2(/ m! unregulated

: PHYSICAL CHARACTERISTICS

M : $6$$ +"D trainer P")8 $3/ mm 6$/ mm

10 BUS E4PANSION

! ne# concept of >


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COMMAND LINE EDITOR FEATURES

iA Single line editor can process upto 4/ characters.

ii V#*i ;!< ).'+%i(', #$!

1 ASSEMBLER COMMAND

FUNCTION

*his command is used to enter the mnemonics of $/$6 and it gi@es the opcode for theMnemonics.

SYNTA4

F! G"-H

! : +ine !ssembler "ommand.

PROCEDURE

1. !fter entering the I!I command' the kit is displaed as follo#s



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2. *hen' it asks the starting address

0o#' ou entered the user -!M address and programs' for e@er mnemonics for $/$6

entered'

it gi@es the opcode.

2 DIS-ASSEMBLER COMMAND

FUNCTION

*his command gi@es the mnemonics and corresponding opcode in the gi@en address.

SYNTA4

F, G"-H

, : Dis !ssembler "ommand.

PROCEDURE

1. !fter entering the I,I command' the kit is displaed as follo#s.

2. *hen' if ou enter the starting address

3 SUBSTITUTE MEMORY COMMAND

FUNCTION

*his command is used to eamine the contains of selected memor location and modif the

-!M contents if desired.

SYNTA4

iA FS) G!DD-H G"-H

S) : Substitute bte command #ord

G!DD-H : ,ser can enter the address either in segment8

offset form or onl offset form

G"-H : keboard -eturn

iiA FSJ G!DD-H G"-H



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SJ : Substitute #ord command #ord.

G!DD-H : !ddress either segment8

Offset or onl.

G"-H : ;eboard return.

PROCEDURE

1A !fter entering a substitute command' the contents of that address are displaed as

9ollo#s.

2A ,se enter to eamine the net location or to increment the memor location and the =--=

ke to @ie# pre@ious locations. ie. to decrement the memor location.

3A *o modif the contents' enter the ne# data and press enter ke.

4A *o terminate this command press a dot BA

9 REGISTER COMMAND

FUNCTION

*o eamine and modif the register contents of the "P,.

SYNTA4

F- G-H

- : -egister @ie# modif command #ord.

PROCEDURE

iA nter register command #hen prompted for entr.

iiA nitiall K!


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i@A "hange data to an register if desired and press carriage return

@A *he seLuence is circular and there fore apressing enter ke after the last register order'

Jill again displa the first one.

@iA *o terminater this command press dot B.A

5 GO > E4EC COMMAND

FUNCTION

*he O command us used to -un a program. *his command transfers control of the $/$6!

"P, from the monitor program to user programs.

SYNTA4

F O G!DD-H G"-H

O : O "ommand.

G!DD-H : 16 bit address. either segment 8 offset or offset onlA

G"-H : "arriage return.

PROCEDURE

iA *pe O command #ith address from #here eecution should start.

iiA 0o#' the control is transferred to the address entered b ou and the displa #ill be as

sho#n belo#.

iiiA *o eit from the eecution and to return control to the monitor' press reset ke or

nterrupt ke in the kit.

i@A ) using 0*:2 instruction #ith opcodes "D/1' ou can transfer control to monitor

#ithout sa@ing an registers. "D' /2 should be placed at the end of the program

6 TRACE COMMAND

FUNCTION

*his command helps the user to eecute programs in steps i.e instruction. *his command #illbe @er helpful #hile debugging programs.



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SYNTA4

F*- G!ddrH G"-H

*- : *race command #ord.

G!ddrH : Program starting !ddress. Bsegment 8 offset of offset onlA

G"-H : "arriage -eturn.

PROCEDURE

iA nter the *race command #ith the abo@e snta.

iiA 0o# the first instruction is eecuted an the registers are updated.

iiiA *he net instruction to be eecuted and the memor location are displaed.

i@A Since' registers are updated after each indi@idual instruction' ou can @ie# the register

contents after an eecution of indi@idual instruction.

@A Press dot B.A to return to monitor and @ie# registers or memor locations are desired.

@iA "ontinue single stepping after @ie#ing register contents b again eecuting trace

command

7BLOCK MOVE COMMAND

FUNCTION

*his command mo@es the contents of a specified block of memor to another block #hose

starting address is specified to -!M7.SYNTA4

iA FM) GStart !ddrH Gnd !ddrH GDest !ddrH G"-H

M) : )lock mo@e bte command #ord.

GStart !ddrH : )lock starting address.Bsegment 8 offset or offset onlA

Gnd !ddrH : )lock nding !ddress.Boffset onlA

GDest !ddrH : Destination !ddress.Bsegment 8 offset or offset onlA


iiA FM) GStart !ddrH Gnd !ddrH GDest !ddrH G"-H

M) : )lock mo@e #ord command .

GStart !ddrH : )lock starting address.Bsegment 8 offset or offset onlA

Gnd !ddrH : )lock nding !ddress.Boffset onlA

GDest !ddrH : Destination !ddress.Bsegment 8 offset or offset onlA


PROCEDURE

iA nter th )lock Mo@e "ommand #ith the abo@e snta.

iiA 0o#' the data is mo@ed from source block to destination block and the control is

transferred to monitor program.

iiiA !ddress can be monitored in the displa throughout the mo@e block function



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INPUT COMMAND

FUNCTION

*his command inputs data from the desired port.SYNTA4

iA F) GPort !ddressH G"-H

) : nput )te command #ord.

GPort !ddrH : >alid nput !ddress. Bi.e //// to 9999A.


iiA FSJ GPort !ddrH G"-H

J : nput #ord command

PROCEDURE

iA nter ) command in the abo@e stated snta.iiA 0o#' the data #ould be read and displaed as sho#n belo#.

:SERIAL MONITOR COMMAND

FUNCTION

,sing these serial monitor command ou can operate our trainer through computer. before

that

ou #ill connect -S232" cable Bproper configurationA to the computer to an one of the

serial

port.



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10SERIAL INPUT COMMAND

FUNCTION

*his command inputs data from the $2(1 port of M : $6$$ +"D trainer asnchronousl.SYNTA4

FS GStart !ddrH G"-H

S : Serial input command #ord.

GStart !ddrH : !ddress to store the serial input data.


PROCEDURE

iA nter the serial input command in the abo@e said format.

iiA 0o#' transmit data from the host sstem.BPls refer to I0ote :2I for further discussion

contact D!*! *-!0SMSSO0 9-OM OS* S=S*MSA

iiiA *he M : $6$$ +"D trainer recei@ed data and stores it from the gi@en starting address and

returns to the command prompt on recei@ing the O9 M!-;.B-ef 0ote:2Ai@A ,sing substitute memor command check for the data from the starting address specified.

11SERIAL OUTPUT COMMAND

FUNCTION

*his command outputs data seriall through the $2(1 of the M : $6$$ +"D trainer

asnchronousl.

SYNTA4

FSO GStart !ddrH Gnd !ddrH G"-H

SO : Serial output command #ord.

GStart !ddrH : Start address of the transmit data block.BSegment 8 offset or offset

onlA.

Gnd !ddrH : nd !ddress of the transmit data block Boffset onlA


PROCEDURE

iA nter the serial output command in the abo@e said format.

iiA nsure that the const sstem is set in the recei@e mode.

iiiA 0o#' data #ill be transmitted seriall. M : $6$$ +"D trainer returns to commandprompt after data transmission is o@er.

RESULT



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16 BIT ARITHMETIC OPERATION

E4 NO 2

DATE

AIM*o perform 16 bit !rithmetic operation such as addition' subtraction' Multiplication'

di@ision using $/$6 Microprocessor ;it.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

THEORY

*he KaddK instruction reLuires either the addend or the augend to be in a register'

unless the source operand is immediate since the addressing modes permitted for the source

and destination are register:register' memor:register' register :memor' register:immediate'

and finall memorimmediate. Our obNecti@e is to obtain the sum of t#o numbers in

memor.ence one of the operands is initiall mo@ed to !


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FLO CHART

ALGORITHM

BiA 16-@i% #i%i(' et the first number.

!dd the second number to the first number.

Store +S)s of sum.

Store MS)s of sum

PROGRAM FOR ADDITION

M!&($< #$!,, O"+(!, M'!&('i+, C(&&!'%,

MO> ! 12//7' ! D " 12/27' DS)

instruction

ii. *o fill the locations 11// to 1199 in memor #ith the bte 34 using S*OS)

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

THEORY

Since the $/$6 includes the string primiti@es' #hich reLuire initialisation of the inde

registers'the S and D registers are initialised to start of the source and start of the

destination arra respecti@el. *he direction flag is cleared to facilitate auto incrementing of

the inde registers. *he "< register is used to perform the operation repeatedl. *he string

primiti@e used in MO>S. n the case of MO> operation' the status of the direction flag is

ho#e@er immaterial. *he function S*OS #ill store the bte in !+ or the #ord in ! " D'21//

MO> !


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E4 NO SORTING AND SEARCHING

DATE

AIM

Jrite an !ssembl +anguage Program to arrange a gi@en series of headecimal btes in

ascending order Jrite an !+P to find out the number of e@en and odd numbers from a gi@en series of 16 bit

headecimal number.

THEORY

*he simplest logic to decide #heather a binar number is e@en or odd is to check the least significant bit

of a number.if it is / 'the number is e@en else it is odd."heck +S) b rotaing the number through carr

flag and ncrement e@en and odd number.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

ALGORITHM

i S!#$+i'/ E!' #' ( '.&@!$, i' #' #$$# S'12//

MO> !


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ASCENDING ORDER DESCENDING ORDER

ASCENDING ORDER OF AN ARRAY


S*!-*

0*!+Q PO0*-

"O,0* "O,0* T 1

9+! /

S

PO0*-

PO0*-

1

*MP PO0*-

PO0*- PO0*- 1

PO0*- 1 *MP

PO0*- PO0*- 1

"O,0* "O,0* 1

S

"O,0*

/

S

9+!

/

S*OP

=S

=S

0O

0O

0O

=S

S*!-*

0*!+Q PO0*-

"O,0* "O,0* T 1

9+! /

S

PO0*-

PO0*-

1

*MP PO0*-

PO0*- PO0*- 1

PO0*- 1 *MP

PO0*- PO0*- 1"O,0* "O,0* 1

S

"O,0*

/

S

9+!

/

S*OP

=S

0O

0O

=S

=S


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ALGORITHM

ii S($%i'/ i' #,+!'i'/ ($!$

e. +oad the arra count

f. "ompare the numbers and echange if necessar so that the t#o numbers are in

ascending order.

g. Decrement count.

h. et the third number from the arra and repeat the process until count is /.

PROGRAM

M!&($)M) //1 1

THEORY

*he ntel $2%& is responsible for debouncing of the kes' coding of the kepad matri and

refreshing of the displa elements in a Microprocessor based de@elopment sstem. ts main

features are8

1A Simultaneous ;eboard and Displa operation.

2 A3 nput modes such as Scanned ;eboard Mode' Scanned Sensor Mode and Strobed nput

ntr Mode.

3A 2 Output modes such as $ or 16 character multipleed displas' right entr or left entr

displa formats.

4A "lock Prescaler.

(A Programmable Scan *iming.6A 2 ;e lockout or 0:ke -oll:o@er #ith contact debounce.%A !uto ncrement facilit for

eas programming.

1 Di,"*#< M(! S!%." C('%$(* ($-10 H

0 0 0 1 0 0 0 0

0 0 0 D D K K K

DD

//: $)it character displa left entr

/1: 16)it character displa left entr 1/: $)it character displa right entr

11: 16)it character displa right entr

;;;: ;e )oard Mode

///:2;e lockout.

2C*!#$ Di,"*#1-FIFO S%#%., i, +*!#$!

1-C*!#$ #** @i%,

C(&@i'! !))!+% () CD


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11 A0-3 B0-3 FF

3 $i%! Di,"*#


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PROGRAM

MEMORY

ADDRESS

OPCODES MNEMONICS COMMENTS

S*!-*8MO>

S'12//

MO> "


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LOOK UP TABLE

ADDRESS DATA

SEGMENT DEFINITION

DATA BUS D7 D6 D5 D9 D3 D2 D1 D0

SEGMENTS + @ # " / ) !

PROCEDURE

i. nter the program from location 1///.



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ii. "onnect the $2%& interface kit to $/$6 Processor.

iii. ecute the Program

i@. *he name #ill be displaed in the % segment

RESULT

E4 NO INTERFACING ADC ITH 06

DATE

AIM

*o #rite a program to con@ert the anolog into digital @oltage

PROBLEM STATEMENT



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*he program is eecuted for @arious @alues of analog @oltage #hich are set #ith the

help of a potentiometer. *he +D displa is @erified #ith the digital @alue that is stored in a

memor location.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4 !0O+O *O D*!+

"O0>-*-

>)M) //3 1

THEORY

Microprocessors are Digital logic de@ices that can process onl digital signals that are in

binar form logic le@els Beither / or 1 or / @olts or ( @oltsA' )ut most industrial applications

in@ol@e phsical @ariables such as temperature' pressure etc' #hich are continuousl B@aring

@oltageA #hen con@erted to analog signal b transducers C signal condition' unlike digital

signals ha@ing either a lo# or high state. n most cases #e #ant to control these signals

electronicall. *his automatic control can be achie@ed using a microprocessor. )ut

microprocessor can understand onl digital language. *hen ho# can it control these

parametersV So there should be some translater #ho can translate these analog signals to a

digital form #hich the Microprocessor considers formal. *his is the place #here an !nalog to

Digital "on@erter B!D"A comes into the picture. *hus an !nalog to Digital "on@erter is anelectronic circuit that con@erts the analog or continuous signal to digital or discrete.

HARDARE ADDRESS

ALGORITHM

BiA Select the channel and latch the address.BiiA Send the start con@ersion pulse.

BiiiA -ead O" signal.

Bi@A f O" 1 continue else go to step BiiiA

B@A -ead the digital output.

B@iA Store it in a memor location

FLO CHART FOR ADC


S*!-*

S+"* * "!00+ !0D +!*"

!DD-SS


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PROGRAM

MEMORY

ADDRESS


MO> !+'1/

O,* "$'!+

MO> !+'1$

O,* "$'!+

+*

"hannel selection and !+ lo#

!+ high

*erminate the Program

PROCEDURE

i. nter the program from location 1///.ii. "onnect the !D" interface kit to $/$6 Processor

iii. >ar the analog input using trimpot and gi@e SO" b pressing the s#itch

i@. See the corresponding digital @alue in the led displa

OBSERVATION

ANALOG

VOLTAGE

DIGITAL DATA ON LED

DISPLAY

HE4 CODE IN MEMORY

LOCATION


S0D * S*!-* "O0>-SO0 P,+S

-!D * D*!+O,*P,*

S*O- * D*!+ >!+, 0 *

MMO-= +O"!*O0 SP"9D

S O"

1V

S*OP

0O

=S


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RESULT

E4 NO INTERFACING DAC ITH 06

DATE

AIM

*o #rite a program to

i. generate sLuare #a@eform in dac2 output

ii. generate />in th D!" 1 output.



43/80


APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4 D*!+ *O !0!+O

"O0>-*-

>)M) //3 1

PROBLEM STATEMENT

*he program is eecuted for @arious digital @alues and eLui@alent analog @oltages are

measured and also the #a@eforms are measured at the output ports using "-O.

ALGORITHM

SLuare Ja@eform8

BiA Send lo# @alue B//A to the D!".

BiiA ntroduce suitable dela.

BiiiA Send high @alue to D!".

Bi@A ntroduce dela.

B@A -epeat the abo@e procedure.

HARDARE ADDRESS

FLOCHART

MEASUREMENT OF ANALOG VOLTAGE S8UARE AVE FORM


S*!-*

S0D *

D*!+>!+, *O!"",M,+!*O-

0*!+S * !"",M,+!*O-

S0D !"" "O0*0* *O D!"

S*!-*

D+!=


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PROGRAM TO GENERATE 0 V IN THE DAC1 OUTPUT

MEMORY

ADDRESS


MO> !+'%9

O,* "/'!+

+*

%9BheA/@

Out the data in D!"1

*erminate the Program

PROCEDURE

i. nter the program from location 1///.ii. "onnect the D!" interface kit to $/$6 Processor

iii. >ie# the /@ output in the "-O

OBSERVATION

DIGITAL DATA ANALOG VOLTAGE

PROGRAM TO GENERATE S8UARE AVE IN DAC2 OUTPUT

MEMORY

ADDRESS


S*!-*8MO> !+'//

O,* "$'!+

"!++ D+!=

MO> !+'99

+o# data in D!" 2

Dela


*-!0S9- *

!"",M,+!*O- "O0*0*S

*O D!"

-!D * "O--SPO0D0

!0!+O >!+,

S*OP

+O!D * !"" J* M!!+, S0D !"" "O0*0*

*O D!"

D+!=


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O,* "$'!+

"!++ D+!=

MP S*!-*

D+!=8MO>

D


46/80


1. M"-OP-O"SSO- M"-O $6$$ ;* 1

2. POJ- "O-D (> S,P++= 1

3. ;= )O!-D 1

4 S*PP- MO*O- 1 ;g 1

PROBLEM STATEMENT

Jrite a code for achie@ing a specific angle of rotation in a gi@en time and particular

number of rotations in a specific time.

THEORY

Stepper motor control is a @er popular application of microprocessor in control area. *he

are #idel used in Bsimple position control sstems in the open and closed loop modeA a

@ariet ofapplications such as computer peripherals Bprinters' disk dri@er etc.A and in the areas

of processcontrol machine tools' medicine' numericall controlled machines and -obotics.

ALGORITHM

9or running stepper motor clock#ise and anticlock#ise directions

BiA et the first data from the lookup table.

BiiA nitiali5e the counter and mo@e data into accumulator.BiiiA Dri@e the stepper motor circuitr and introduce dela

Bi@A Decrement the counter is not 5ero repeat from stepBiiiA

B@A -epeat the abo@e procedure both for back#ard and for#ard directions

HARDARE ADDRESS

FLOCHART


0*!+Q "O,0*- 9O- +OO; ,P *!)+

* * 9-S* D!*! 9-OM * !"",M,+!*O-

MO> D!*! 0*O * !"",M,+!*O-

S*!-*


47/80


PROGRAM

MEMORY

ADDRESS



D-> * MO*O-

"-",*!-=

D"-M0* "O,0*-

* * D!*! 9-OM +OO; ,P*!)+

S ) / V

D+!=

0O


48/80


S*!-*8MO> !+'/&

O,* "/'!+

"!++ D+!=

MO> !+'/(

O,* "/'!+

"!++ D+!=MO> !+'/6

O,* "/'!+

"!++ D+!=

MO> !+'/!

O,* "/'!+

"!++ D+!=

MP S*!-*

D+!=8MO>

D


49/80


Jrite an !ssembl +anguage Program to control the speed of the motor

Jrite an !+P to read the count @alue from the timer

THEORY

*his board uses a simple method for measurement and control of the D" motor speed. *his

board uses the principle that the speed of an motor decreases as the input po#er to the motordecreases. ence' b @aring the input @oltage to the motor' the speed can be @aried. *he

speed measurement is based on the principle that the motor rotation is con@erted in to pulses

using optical pickup and these pulses are used to decremented a counter for a kno#n time.

*his count @alue can be calibrated to -PM Brotation per minuteA' #hich is the standard

unit for speed measurement.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4. D" MO*O- >)M) 1% 1

SOFARE SPECIFICATION

M!SM SO9*J!-

HARDARE ADDRESS

PROGRAM

T( +('%$(* %! ,"!! () DC &(%($



50/80


M!&($ !+'//

O,* /D$'!+

"!++ D+!=

MO> !+'3/

O,* /"'!+

MO> !+'/99

O,* /"$'!+O,* /"$'!+



51/80


MO> !+'//

O,* /D/'!+

"!++ D+!=

MO> !+'//

O,* /D$'!+

0 !+'/"$MO> S'1(//h

MO> S7'!+

MO> !+'//

0" S

MO> S7'!+

+*

PROCEDURE

1.nter the mnemonics in the kit b do#n loading using M!SM tool.

2.+oad maimum @alue 99 to !ccumulator

3.ecute the Program

4.*he count @alue #ill be stored in the location 1(//.

OBSERVATION

RESULT

E4 NO 25: INTERFACING

DATE

OBECTIVE



52/80


*o initiali5e the $2(& #ith the follo#ing specification

W "J 4 needed.

W Single $2(&.

W nter@al of 4.

W dge triggered mode.

W !% !6 !( ///.W nitiali5e to tpe $ interrupt.

W $/$6 mode.

W 0ormal O.

W 0on:buffered mode BSince #e are not using buffersA.

W 0ot special full:nested mode.

W Mask all interrupts ecept - /.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4. $2(& 0*-9!"0 >)M) /% 1

THEORY*he program initiali5esthe $2(& to tpe $. So the interrupt @ector for interrupt -O is

////8 //2/ So at ////8//2/' enter the address////8 12// f the S- is at /812//

n the S-' non specific O command is gi@en. n full nested mode' the interrupt reLuests

are ordered in priorit from / through % B/ highestA. )ut in some applications there are a

number of interrupting de@ices of eLual priorit. n this mode' a de@ice after being ser@iced

recei@es the lo#est priorit' *his is kno#n as -otating priorit

PROGRAM

M!&($ !+'2/

O,* "/'!+

0* 2

INTERRUPT VECTOR

////8 //2/ //

////8 //21 12

////8 //22 //

////8 //23 //

OBSERVATION

RESULT

E4 NO 253 INTERFACING

DATE

OBECTIVE



54/80


*o stud the @arious modes in $2(3.

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4. $2(3 0*-9!"0 >)M) /4 1

THEORY

MODE 0 - INTERRUPT ON TERMINAL COUNT

*he output #ill be initiall lo# after mode set operation. !fter loading the counter' the

output #ill remain lo# #hile counting and on terminal count' the output #ill become high'

MODE 1 - PROGRAMMABLE ONE-SHOT

!fter loading the counter' the output #ill remain lo# follo#ing the rising edge of the gate

input. *he output #ill go high on the terminal count. t is re:triggerable' hence the output #ill

remain lo# for the full count after an rising edge of the gate input.

MODE 2 - RATE GENERATOR

t is a simple di@ide b 0 counter. *he output #ill be lo# for one period of the input clock.*he period from one output pulse to the net eLuals the number of input counts in the count

register. f the count register is reloaded bet#een output pulses the present period #ill not be

affected' but the subseLuent period #ill reflect the ne# @alue.

MODE 3 - S8UARE AVE GENERATOR

t is similar to Mode 2 ecept that the output #ill remain high until one half of count and go

lo# for the other half for e@en number count. f the count is odd' the output #ill be high for

Bcount1A2 counts and lo# for Bcount:1A2 counts. *his mode is used for generating baud

rate for $2(1

MODE 9 - SOFTARE TRIGGERED STROBE

*he output is high after mode is set and also during counting. On terminal count' the output

#ill go lo# for one clock period and becomes high again. *his mode can be used forinterrupt generation.

MODE 5 - HARDARE TRIGGERED STROBE

"ounter starts counting after rising edge of trigger input and output goes lo# for one clock

period #hen terminal count is reached. *he counter is re:triggerable.

PROGRAM

MODE 0 - INTERRUPT ON TERMINAL COUNT



55/80


M!&($ !+'%4

O,* "'!+MO> !+'/!

O,* "!'!+

MO> !+'//

O,* "!'!+

+*

NOTE8 Please make sure that "+; 1 is connected to P"+;. n a "-O obser@e the

input clock to channel 1 and the output O,* 1.

MODE 3 - S8UARE AVE GENERATOR

M!&($ S,P++= 1

3. ;= )O!-D 1

4. &:& cable -S232 1


M!SM SO9*J!-

THEORY

*he $2(1 is used as a peripheral de@ice for serial communication and is

programmed b the "P, to operate using @irtuall an serial data transmission techniLue.

*he ,S!-* accepts data characters from the "P, in parallel format and then con@erts them

into a continuous serial data stream for transmission. Simultaneousl' it can recei@e serial

data streams and con@ert them into parallel data characters for the "P,. *he "P, can read

the status of the ,S!-* at an time. *hese include data transmission errors and control

signals. *he control signals define the complete functional definition of the $2(1. "ontrol

#ords should be #ritten into the control register of $2(1.*hese control #ords are split intot#o formats8 1A Mode instruction #ord C 2A "ommand instruction #ord. Status #ord format

is used to eamine the error during functional operation.

1...transmit enable

1...data terminal read

1... recei@e enable

1... send break character

1.... reset error flags Bpe'oe'feA

1..... reLuest to send BrtsA

1...... internal reset

1....... enter hunt mode Benable search for snc charactersA



62/80


1 ransmitter read

1. recei@er read

1.. transmitter empt

1... parit error BpeA

1.... o@errun error BoeA 1..... framing error BfeA' asnc onl

1...... snc detect' snc onl

1....... data set read BdsrA

ALGORITHM

1. nitiali5e $2(3 and $2(1 to check the transmission and reception of a character

2. nitiali5e$2(3 to gi@e an output of 1(/;h5 at channel / #hich #ill gi@e a &6// baud rate

of $2(1.

3. *he command #ord and mode #ord is #ritten to the $2(1 to set up for subseLuentoperations

4. *he status #ord is read from the $2(1 on completion of a serial O operation' or #hen

the host "P, is checking the status of the de@ice before starting the net O operation

FLO CHART


S*!-*


63/80


PROGRAM FOR TRANSMITTER "OD SM0*

!SS,M "S8"OD'DS8"OD

O- 1///

MO> S'1(//

MO> !+'36

O,* 16'!+

MO> !+'4/

O,* 1/'!+

MO> !+'/1

O,* 1/'!+

-+O!D8 MO> "+'/(

"";8 0 !+'/!

!0D !+'/4

Q "";

MO> !+'S7

O,* /$'!+

0" S

"MP !+'39

0Q -+O!D

D" "+

0Q ""; 0* /2

"OD 0DS

0D

PROGRAM FOR RECEIVER

"OD SM0*

!SS,M "S8"OD'DS8"OD

O- 1/// MO> S'1(//


"heck *


64/80


MO> !+'36

O,* 16'!+

MO> !+'4/

O,* 1/'!+

MO> !+'/1

O,* 1/'!+-+O!D8 MO> "+'/(

"";8 0 !+'/!

!0D !+'/2

Q "";

0 !+'/$

MO> S7'!+

0" S

"MP !+'39

0Q -+O!D

D" "+

0Q ""; 0* /2

0* /2

"OD 0DS

0D

PROCEDURE

1. nter the transmitter program in one kit and recei@er program in another kit

2. "onnect -S232 cable b# t#o kit

3. 0o# the data #ill be recei@ed seriall to the recei@er kit in the location 1(//.

RESULT

E4 NO PARALLEL COMMUNICATION

DATE

OBECTIVE*o implement parallel communication bet#een t#o kit



65/80


APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

4. 26 core cable 1


M!SM SO9*J!-

PROGRAM FOR TRANSMITER SIDE

code segment

assume cs8code'ds8 code

org 1///h

mo@ al'$2h

O,* 26h'al

mo@ al'3fh

O,* 2/h'a+

loop8 in al'22h sub al'3fh

Nn5 loop

mo@ al'24h

out 2/h'al

call dela

int /2

dela8 mo@ bl'/(h

lion8 mo@ dl'/ffh

l28 dec dl

Nn5 l2

dec bl

Nn5 lion

ret

code ends

end

RECEIVER SIDE

code segment

assume cs8code'ds8code

org 1///h

mo@ al'&/h out 26h'al



66/80


check8 in al'2/h

sub al'3fh

Nn5 check

mo@ al'3fh

out 22h'al

mo@ cl'/$h call dela

mo@ si'12//h

l18 in al'2/h

mo@ si7'al

call dela

inc si

dec cl

Nn5 l1

int /2

dela8 mo@ bl'/(h

lion8 mo@ dl'/ffhl28 dec dl

Nn5 l2

dec bl

Nn5 lion

ret

ret

code ends

end

PROCEDURE

1. nter the transmitter program in one kit and recei@er program in another kit

2. "onnect 26 core cable b# t#o kit

3. 0o# the data #ill be recei@ed parallel on the recei@er kit in the location 12//.

RESULT



67/80




68/80


E4 NO ARITHMETIC LOGICAL AND BIT MANIPULATION

DATE

OBECTIVE



69/80


*o perform !rithmetic operation'logical operation and bit manipulation using $/(1 controller

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% S,P++= 1

3. ;= )O!-D 1

THEORY

!s there is onl one 16:bit -egister in $&"(1' 16:bit addition is performed b using !DD"instruction t#ice' i.e. adding +SD first and MSD net. *he oneIs complement of a number is

obtained b in@erting all the bits in that number ' that isreplacing all 1Is b /Is and all /Is b

1Is. *he t#oIs complement is the negati@e of that number.Setting bits can be done b O-ing

that particular bit b 1.

E4AMPLE

*he program is to add the 16:bit data 1234 #ith the data (6%$ and store the result at the

locations

41(/ and 41(1 using immediate addressing.

-S,+*8 41(/7 !" B+S)AU

41(17 6$ BMS)A.

D!*!+1 : 34U D!*!+2 %$.

D!*!M1 : 12U D!*!M2 (6.

D!*!M1 : MSD O9 D!*!1'

D!*!M2 : MSD O9 D!*!2'

D!*!+1 : +SD O9 D!*!1'

D!*!+2 : +SD O9 D!*!2

ALGORITHM

1. "lear Program Status Jord

2. +oad accumulator ! #ith an desired $:bit data.

3. +oad the register -/#ith the second $: bit data.

4. !dd these t#o $:bit numbers.

(. Store the result.

FLO CHART



70/80


PROGRAM FOR ADDITION



71/80


M!&($< XDP*-'!

0" DP*-

MO> !'FD!*!M1

!DD" !'FD!*!M2

MO>< XDP*-'!

+*8 SMP +*

RESULT

OUTPUT

MEMORY LOCATION DATA

9500

PROCEDURE

iA nter the abo@e opcodes from 41// in the trainer.iiA ecute the program.

iiiA "heck for the result at 41(/ !0D 41(1

i@A "hange data and see if the result at 41(/ changes accordingl.

PROGRAM FOR ONES COMPLEMENT

M!&($ DP*-'F42//

MO>< XDP*-'!

0" !

0" DP*-

MO>< XDP*-'!

-8 SMP -



72/80


PROCEDURE

i. nter the opcodes and the data in the trainer.

ii. ecute the program and check for results.

iii "hange data and check for the corresponding results.

PROGRAM FOR SETTING BIT

M!&($ S,P++= 1

3. ;= )O!-D 1

4. & *O & "!)+ -S232 1

PROCEDURE

1 *pe sm in the controller kit.

2 0o# open the communication port.

3 *hen it is read to communicate #ith kit to P"

9 9or ample if ou tpe in the communication #indo# the help command #ill be

displaed in the P"

RESULT

E4 NO TIMER IN 051

DATE



74/80


OBECTIVE

Jrite a program to generate sLuare #a@e using timer in P1./

APPARATUS RE8UIRED

S'( R!?.i$! C(&"('!'%, ,"!+i)i+#%i(' 8% *1'F:6

MO> S"O0'F(/

S*) *-1

8MO> S),9'[F!Z

80) *'

"+- *

SMMP



80/80


RESULT

Documents

Microprocessor Ece Lab Manual