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Sonsivri
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Electronics
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Pic Basic Languages
(Moderator:
bbarney
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Ibutton
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Topic: Ibutton (Read 4674 times)
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nileshhande
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Ibutton
«
on:
September 04, 2007, 10:24:14 10:24 »
Hi,
Im looking for DALLAS Ibutton interface...DS1990A or DS1991 MultiKey iButton project(PIC)..
http://www.maxim-ic.com/products/ibutton/products/ibuttons.cfm
Thanks&Regards..
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ogul
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Re: Ibutton
«
Reply #1 on:
September 04, 2007, 11:51:30 11:51 »
CONTROL1 var byte
K var byte
DATBUF var byte[8]
tom_wait:
gosub tom_reset
if CONTROL1=0 then tom_wait
gosub tom_read
lcdout $FE,$01
For K=0 to 7
lcdout DATBUF[K]," "
NEXT K
pause 2000
goto tom_wait
tom_reset:
CONTROL1=1
Low PORTB.2 ' Set the data pin low to init
Pauseus 500 ' wait > 480us
input PORTB.2
Pauseus 100 ' Wait > 60us
If PORTB.2= 1 Then CONTROL1=0 'no tom
Return
tom_read: '
OWOUT PORTB.2, 1, [$33]
OWIN PORTB.2, 0, [STR DATBUF\8] ' 8-byte "ID"
return
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nileshhande
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Re: Ibutton
«
Reply #2 on:
September 04, 2007, 12:57:13 12:57 »
if you could Give some more essential information of this code like... Read multiple ibuttons and if button1 = xxxx then high port1 else if button2 = xxxx then high port2...some thing like that........
Thank you very much...
Regards.
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