reading wiegand 26

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Dani B
03/04/10 13:46
Modified:
03/04/10 14:28
Read: 433 times

#173862 - reading wiegand 26

hey im tryin to read wiegand 26 through 8051..using interupts ..
can any1 help me out....heres a little code that reads the first 8 bits and store them to the bit addressable registers and transmit them serially .....i havnt tested the code so don noe if it works or not... if u have a better idea to read the wiegand 26 bit plz lemme noe..

ORG 000H
LJMP MAIN
ORG 003H
LJMP ISR0
ORG 013H
LJMP ISR1

MAIN:
MOV IE,#10000101B
SETB IT0
SETB IT1
JMP $
ISR0: CJNE R0,#7H,SEND
ORL 20H,#10000000B
MOV A,20H
RR A
MOV 20H,A
INC R0
RET I
ISR1: CJNE R0,#7H,SEND
ORL 20H,#00000000B
MOV A,20H
RR A
MOV 20H,A
INC R0
RET I

SEND: MOVE SCON,#52H
MOVE TMOD,#20H
TH1,#-13
CLR TI
MOV SBUF,20H
JNB TI,$

dani

List of 8 messages in thread

Topic Author Date
reading wiegand 26       Dani B       03/04/10 13:46
   You live in "Dani State"?       Kai Klaas       03/04/10 14:37
      but you should       Erik Malund       03/05/10 07:10
         Stock levels       Steve M. Taylor       03/05/10 13:36
   Some Help!?       Neil Kurzman       03/04/10 21:33
   What is 'wiegand 26' ?       Robert Henneke       03/05/10 04:15
      Twice as bad as ...       Andy Neil       03/05/10 14:24
   Understanding Comes With....       Michael Karas       03/05/10 06:32

Back to Subject List

Topic	Author	Date
*reading wiegand 26*	Dani B	03/04/10 13:46
You live in "Dani State"?	Kai Klaas	03/04/10 14:37
but you should	Erik Malund	03/05/10 07:10
Stock levels	Steve M. Taylor	03/05/10 13:36
Some Help!?	Neil Kurzman	03/04/10 21:33
What is 'wiegand 26' ?	Robert Henneke	03/05/10 04:15
Twice as bad as ...	Andy Neil	03/05/10 14:24
Understanding Comes With....	Michael Karas	03/05/10 06:32