>> No questions, yet. Just the code to browse at it...I went into AN718 and AN531 from Microchip and they do implement "some sort of PID". What I was trying to find is a Z transform implementation of the PID with a PIC in ASM... << Oh, you wanted free code. I don't have any of that. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu