Code for reading flow & generating serial output, Assembly Language

Assignment Help:

Assembly Code for Reading Flow & Generating Serial Output

The timer is timer 1 is set for the baud rate 9600, as the crystal used is of 11.0592 Hz.  Then the timer 1 is started by TR1. The program checks the ASCII switch, flow status pins and the respective flow subroutine starts and in the flow subroutine the overflow status is   checked as well as the MOV B ,#X   where X is the character used to be displayed in PC  is used to stored in the register B.  The subroutines returns and the Serial transmission routine is called for serial transmission. In serial transmission subroutine the status of 79H is checked if found enabled then the value of B is transferred in SBUF and followed by character 'L' to SBUF.

The details assembly code is as below:-

         ; Define value setting for Timer in using Generate Baud Rate in transfer data.     

                    MOV IE,#00000000B

                     MOV TMOD,#00100000B

                     MOV TL1,#0FDH

                     MOV TH1,#0FDH

                ; Define value setting for SCON Register that select mode 1

                     MOV SCON,#01010000B

                     SETB TR1  

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

 START  : MOV A ,P3

 ANL A, #80h   ;  Masking of    BITs except P3.7

 CJNE  A ,#00h ,   OVER       ; TO CHECK THE  ASCII  SWITCH 

               CPL 79H     ;   

               OVER :  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

     JB   79H , SKIP     ;  CHECK FOR ENABLED OR DISABLED SERIAL COMMUNICATION

     ACALL STXD    ;     SERIAL DATA COMMUNICATION  TX

    SKIP :  SJMP   START 

; FLOW RATE   SUBROUTINES SECTION

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

MOV B ,#'0'

NEXT0 : RET

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

MOV B ,#'1'

NEXT2  : RET

;  SUBROUTINE FLOW RATE   3

FLOW03:    CJNE  A,#0CH ,  NEXT3       ; FLOW RATE   3

MOV B ,#'3'

NEXT3 :RET

;    SUBROUTINE FLOW RATE   4

FLOW04:    CJNE  A,#10H ,  NEXT4       ; FLOW RATE   4

MOV B ,#'4'

NEXT4 :RET

 

;     SUBROUTINE FLOW RATE   5

FLOW05:    CJNE  A, #14H  ,  NEXT5       ; FLOW RATE   5

MOV B ,#'5' 

Next5 :RET

;     SUBROUTINE FLOW RATE   6

FLOW06:    CJNE  A,#18H ,  NEXT6       ; FLOW RATE   6

MOV B ,#'6'

Next6 :RET

;      SIMILARLY SUBROUTINE FLOW RATE   7

 ;   TRANSMISSION SERIAL  SUBROUTINE STARTS 

STXD :           MOV SBUF,B

                     JNB TI,$

                     CLR TI

                     MOV SBUF,#'L'  ;  Sending L  After the flow Rate

                     JNB TI,$

                     CLR TI

     RET 

 END


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

Progframmw, write a programme the addition two 3*3 matrix and stored in fro...

write a programme the addition two 3*3 matrix and stored in from list

The processor 8088-microprocessor, The processor 8088 The launching of ...

The processor 8088 The launching of the processor 8086 is consider as a remarkable step in the development of high speed computing machines. Before the introduction  of 8086 mo

Aad-arithmetic instruction-microprocessor, AAD: ASCII Adjust for Division ...

AAD: ASCII Adjust for Division though the names of these 2 instructions (AAM and AAD) seem to be same, there is many difference between their functions. The AAD instruction conver

Add-arithmetic instruction-microprocessor, ADD:  Add :- This instruction ...

ADD:  Add :- This instruction adds an immediate contents of a memory location specified in the a register ( source ) or instruction to the contents of another register (destinat

Write a program, write a program that calculates the fibonacci series: exce...

write a program that calculates the fibonacci series: except for the first two numbers in the sequence

Interrupt system based on 8259 a-microprocessor, Interrupt System Based on ...

Interrupt System Based on Single 8259 A The 8259A is contained in a 28-pin dual-in-line package that need only a + 5-V supply voltage.  Its organization is shown in given figur

Or-logical instruction-microprocessor, OR: Logical OR: The OR instruction ...

OR: Logical OR: The OR instruction carries out the OR operation in the similar way as described in case of the AND operation. The restriction on source and destination operands ar

Using straight line method for depreciation, Request a depreciation of the...

Request a depreciation of the item, year of purchase, cost of item, number of years to be depreciated (estimated life ) and,the method of depreciation . Method of depreciation sh

Counters, #question. counters using 8051.

#question. counters using 8051.

Dijkstra Implementation in Assembly Language x86, I am assigned to implemen...

I am assigned to implement dijkstra algorithm in assembly language. I am not a novice in assembly. I need help implementing it.Kindly if anyone then please.

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