Perhaps you have a zapped MCLR pin. Have you tried with another chip?

/Ruben

> I added a few flicks of LATB,0 through the power-up code but
> don't see any of them when the reset button is released (from
> 0.05V, measured at the pin). The LCD still shows the last thing
> before a reset attempt
>=20
> Looking at the reset vector, 0x0000, it says 'goto 0x009e0e', and
> 0x9E0E is where code starts
>=20
> I thought I had the syntax OK
>=20
> The interrupt vectors are set by
>=20
>   .global __reset             ;program entry point
>   .global __U1RXInterrupt     ;receiver ISR
>   .global __T1Interrupt       ;Timer 1 ISR
>=20
> The start of the appropriate routine is eg
>=20
>           __reset:
> or
>            __T1Interrupt:
>=20
> Timer1 interrupt definitely works, so does reset on power-up
>=20
> As I mentioned, there's little about /MCLR in the documentation.
> It's not even included as a cold reset with POR and BOR
>=20
> ww1.microchip.com/downloads/en/DeviceDoc/70192C.pdf
>=20
> Joe
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> http://mailman.mit.edu/mailman/listinfo/piclist



--=20
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