hi,
For the benefit of all here's the link for Microchip APP NOTE PICREF-4

http://ww1.microchip.com/downloads/e...tes/40171a.pdf

which part of the code you need to know??? On which frequency your AC line work... not too important but...

IMO, i prefer using other circuit design for that... no transformer AAAAARRRRGH! Safer to use cheap transformer+opto isolator between PIC and TRIAC. But i always use the safer method... not the cheaper one. I may be wrong here but... i'm still on the market and alive