>There is definitely
>some signal out of both SCL and SDA line of 16F877, but the TC1322 does
>not seem to be receiving it.  I tried it with 2 different TC1322, so I
>don't think the DACs are 'fried'.

Are the SCL and SDA lines active (getting "some signal out of it") when the
TC1322 is connected to the 16F877?  Or are you testing the F877 separately?

Unfortunately, I haven't used a DAC with a PIC using the SPI/I2C interface.
Maybe someone else has and can offer more helpful suggestions.

--Andrew

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