> use pin RB7/T1OSI as an input pin for the counter. The pin is
> receiving a
> square wave signal between 13Khz and 15Khz of 0V to 5V.
>
> My dev settings are T1CON = 0x0F == Prescale 1:1, T1OSCEN =
> 1, T1SYNC = 1,
> TMR1CS = 1, TMR1ON.

have you any signal connected to RB6?
what clock frequency are using you?

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