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TMR1 can take pic out of the sleep mode only if it is set to operate on
external clock source. Crystal with internal oscilator wont do it, but a
complete oscilator will.=0D
=0D
When sleeping, the internal oscilators are disabled, so no rollover will
ever happen.=0D
=0D
Lucas Hartmann=0D
 =0D
-------Mensagem original-------=0D
 =0D
De: pic microcontroller discussion list=0D
Data: Monday, November 17, 2003 17:43:15=0D
Para: PICLIST@MITVMA.MIT.EDU=0D
Assunto: [PIC]: TMR1 and SLEEP mode=0D
 =0D
Hi,=0D
   I'm currently playing around with one of my PIC16F628s - I wanted to
build=0D
some form of battery-powered rolling-code generator. The catch is, the=0D
timekeeping is done with TMR1, while the PIC itself is running off the 4M=
Hz=0D
internal oscillator. Does anyone know if the TMR1 oscillator (or rather a=
=0D
TMR1 counter rollover) can be used to take the 16F628 out of Sleep mode?=0D
 =0D
Thanks.=0D
--=0D
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,=0D
philpem@dsl.pipex.com | ViewFinder, Ethernet (Acorn AEH62),=0D
http://www.philpem.dsl.pipex.com/ | 8xCD, framegrabber, Teletext=0D
=2E... Reactance: your imaginary friend.=0D
 =0D
--=0D
http://www.piclist.com hint: To leave the PICList=0D
mailto:piclist-unsubscribe-request@mitvma.mit.edu=0D
 =0D
=2E

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