Code for reading flow & generating led output, Assembly Language

Assignment Help:

Code for Reading Flow & Generating LED Output

The code starts with the scanning of the PORT 3, for reading the flow status to check for various flow conditions and compare to start subroutines for respective flow. The overflow conditions are checked in respective subroutines for LED driving i.e. In flash mode or continuous, the LED are L1, L2, L3 & L4 are used for various combinations.

The details of program code are below:-

MOV P3 , #0FFH ; Define Port 3 as input port

START : MOV A ,P3

      MOV  A ,P3

    ANL A, #1Ch   ;  Masking of    BITs FLOW RATE

    ACALL FLOW00     ;  FLOW RATE 0  SUBROUTINE 

    ACALL FLOW01 ;  FLOW RATE 1  SUBROUTINE

    ACALL FLOW02 ;  FLOW RATE 2  SUBROUTINE

    ACALL FLOW03;  FLOW RATE 3 SUBROUTINE

    ACALL FLOW04;  FLOW RATE 4  SUBROUTINE

     ACALL FLOW05;  FLOW RATE 5  SUBROUTINE

     ACALL FLOW06 ;  FLOW RATE 6  SUBROUTINE

     ACALL FLOW07 ;  FLOW RATE 7  SUBROUTINE

     SJMP   START 

; FLOW RATE   SUBROUTINES SECTION

FLOW00 :    CJNE  A,#00H ,  NEXT0       ;  FLOW RATE   0

MOV A, P3

ANL A,#20h

CJNE A ,#00H ,  FLOWOV      ; LED 1   FLASHING 1Hz

SETB P1.0 ;  LED 1 ON

ACALL DELAY   ;   500ms   DELAY   

CLR P1.0    ; LED 1 OFF

ACALL DELAY   ; 500ms   DELAY

RET

FLOWOV :  

SETB P1.0     ; LED 1 ON  ( 0 HZ)

NEXT0 : RET

FLOW01:    CJNE  A ,#04H  ,  NEXT1       ; FLOW RATE   1

MOV A, P3

ANL A,#20h

CJNE A ,#00H ,  FLOWOV1

SETB P1.0 ;  LED 1 ON

ACALL DELAY   ;   500ms   DELAY   

CLR P1.0    ; LED 1 OFF

ACALL DELAY   ; 500ms   DELAY

RET

FLOWOV1 :  

SETB P1.0     ; LED 1 ON ( 0 HZ)

NEXT1 :RET

 ;    SUBROUTINE FLOW RATE   2

FLOW02:    CJNE  A,#08H ,  NEXT2       ; FLOW RATE   2

MOV A, P3

ANL A,#20h

CJNE A ,#00H ,  FLOWOV2  ; 

MOV P1 ,#03H   ; LED 1 , LED 2  ON     FLASHING 1 Hz

ACALL DELAY   ;   500ms   DELAY

MOV P1 ,#00H   ; LED 1 , LED 2   OFF

ACALL DELAY ; 500ms   DELAY

RET

FLOWOV2 :  

MOV P1 ,#03H   ; LED 1 , LED 2  ON

NEXT2  : RET

  ;  SUBROUTINE FLOW RATE   3

;    SUBROUTINE FLOW RATE   4

;     SUBROUTINE FLOW RATE   5

;     SUBROUTINE FLOW RATE   6

;    SUBROUTINE FLOW RATE   7

 


Related Discussions:- Code for reading flow & generating led output

Multiplication, how we can multiply two 8 bit number with rotation

how we can multiply two 8 bit number with rotation

Internal architecture of microprocessor, Internal Architecture of Microproc...

Internal Architecture of Microprocessor : The architecture of 8086 provides a number of improvements over 8085 architecture. It supports a, a set of 16-bit registers ,16-bit AL

Inc-arithmetic instruction-microprocessor, INC: Increment : - This instruct...

INC: Increment : - This instruction increments the contents of the particular memory or register location by the value 1. All the condition code flags are affected except the carry

Shell script, write shell to calculate basic salary from given .

write shell to calculate basic salary from given .

Program that will display a list of the decades , Write an assembly languag...

Write an assembly language program that will display (print) a list of the Decades 2010, 2020, 2030... 2100 to the screen using a while loop.

Programming., a program that display English letters excluding vowels

a program that display English letters excluding vowels

Assembly language assignment, The main objective of the assignment is to ex...

The main objective of the assignment is to explore the knowledge regarding parallel ports of a computer system. You can read and write datato/from the parallel port using IN and OU

Develop an assembly language program, • To develop an assembly language pro...

• To develop an assembly language program to control a "simulated" intelligent domestic lighting system with the intention of deterring burglary. • To produce a schematic circuit d

Program which allows the user to select from menu, Write a 32-bit program w...

Write a 32-bit program which when run, allows the user to select from a menu: (1)    Enter a Binary Number (2)    Enter a Decimal Number (3)    Enter a Hexadecimal Number

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd