Two quick things that you may or may not have considered:

The 1302 has a maximum capacitance spec for the 32K clock crystal. Exceeding
this will prevent it from running. I've also had boards with the most minute
amount of flux & wash muck around the crystal and chip that wouldn't run.
Extra cleaning is called for.

Next, I haven't checked your code, but a common eror is to ignore the fact
that the 1302's SCLK must be low when /RST is brought high to start a
sequence.

Sorry I have used this chip a good number of times, but not with PICs. This
is all I can offer, and I hope it is of some help. This is a super
timekeeping chip which gives good bang for the buck, but I've spent
countless hours the fist time I used one on a project. It was worth sweating
it out though.....hang in there...

Chris

> > > I am trying to hook a Dallas 1302 Timekeeping chip up to a
> > > 16f877. I am using PortD 4-6 for the 3-wire interface, and the
> > > read/write routines available from Dontronic's rtc1302.asm file
> > > (appropriately modified to work on the pins I have selected). Is
> > > there any problems with using these routines on a 877? Are there
> > > better ones?
> > >
> > > My main problem is that I can't seem to get it going, which is
> > > always annoying! I was wondering if anyone has any ideas? I have
> > > confirmed that the chip is correctly wired to the correct pins
> > > :-) and as far as I can tell it is all wired up correctly.
> > >
> > > I am using a RomZap III Bootloader and hardware kit. My code is
> > > listed below with all of the RomZap bits removed (I don't think
> > > I've left any important bits out):

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