From the datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/41262E.=
pdf

Page 60, you have to use the WPUA, WPUB registers
Of course, pull ups must be enabled in the OPTION_REG, so you would have to=
 clear the /RABPU bit by writing
OPTION_REGbits.nRABPU =3D 0;
(Well, if you write OPTION_REGbits. a menu should pop up and let you select=
 the bit you want to access)

> From: rdawson16@hotmail.com
> To: piclist@mit.edu
> Subject: the weak pullups (RAPU) definitions are not recognized by the co=
mpiler=FE
> Date: Fri, 26 Sep 2014 10:33:15 -0700
>=20
> I am using MPLAB X and the xc8 compiler.
> My target is a PIC16F690.
> The header file I include, is either pic.h or xc.h whit the same results.
>=20
> All of the header definitions are working, except RBPU, RAPU.
>=20
> I am trying to configure a weak pullup for RA5, using this
>     RAPU =3D 0; // enable the weak pullup for port A
>=20
> or this=20
> RABPU =3D0;
>=20
> Neither are recognized by the compiler and header files.
>=20
> Help!
>=20
> Randy
>=20
> PS the rest of the config bits work:
>=20
> TRISA5
> RA5
> etc, whats up with the weak pullup configure bits?
>=20
>  		 	   		 =20
> --=20
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