AD7843

Hello,

   I'm developing a solution that contains a TS module and uses an AD7843 to interface to a Microchip PIC18F4550, but I am not able to read the values X andY. I followed the instructions in the Data Sheet, I have implemented the serial, I tried using SPI (via hardware), but the only information I can read is the PENIRQ.
   Does anyone have an source example on pic (any family)?

P.S.: I'm using Microchip C18, but any code in any laguage/tool is valid.

Thanks,
Gustavo Fujita - Zunto Intelligence