>=20
> > It is a .33 uF Cap, across the VCC and GND on a IrDA module.  It is
> > about 20 mm away from the PIC.
>=20
> Getting back to the problem, could you post the blinky LED code that
you
> are
> using, which isn't working on MCLR reset?
>=20
> It probably _is_ being run, but some initialisation condition is
different
> on power on from MCLR.  Have a look at the initialisation condition
for
> the
> special function registers in the datasheet (DS40300C pg.15 ff for the
> 16f628).  A few registers are 'unknown' state at startup (and could be
> consistently different after MCLR reset from power up reset), you
might be
> relying on some of them being initialised?
>=20

The code is just setting an output low and waiting 200 mS.  It isn't
dependent upon any registers. =20

Thanks for the suggestion.

Alex

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