Thanks for clarifying that. I'm not using MPLAB and my names are a bit
different. It was I who screwed up the translation.

Allen

> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf
Of
> IVP
> Sent: Monday, July 21, 2014 10:25 PM
> To: Microcontroller discussion list - Public.
> Subject: Re: [Pic] Making a special timer!
>=20
> > turning the Timer off and on shouldn't TMR1IF_bit be TMR1IE_bit?
>=20
> There are 3 bits
>=20
> TMR1ON_OFF starts/stops the timer running
>=20
> TMR1IE is one of the bits allowing the hardware to recognise TMR1
> interrupts (there are others for timers and other various functions in
> PEIE, PIEx, PIRx and INTCON)
>=20
> TMR1IF is the interrupt bit, set automatically when TMR1 goes from
> FFFF to 0000, whether interrupts are enabled or not (eg IF can be
> polled by s/w)
>=20
> If  TMR1ON_OFF =3D 0 then TMR1 is stopped and its current value
> is frozen, regardless of the state of any interrupt bits
>=20
> TMR1IE =3D 0 (or any relevant IE in the pathway) will stop interrupts
> being recognised by the system but it's not the same as starting/stopping
> the timer
>=20
> Joe
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