Could you elaborate on what the issues are, that are causing you problems? Colin :: have been reading the AN889 Vf control using the pic16f777 :: microcontroller(link at bottom of the page to micrchip site with :: datasheet :: and project code in zip file). I have used the code provided in :: mpab but i :: have come across a few issues. All i requre is the 3 PWM signals :: which is :: varies frequency by use of a trimpot on RA1, fwd/rev control and :: run/stop. :: over voltage and under voltage and fualt current is not required, :: i hav been :: trying to remove these sections of code so i could have signal :: generation. :: My ASM skills r very basic could anyoe please help me!! -- cdb, colin@btech-online.co.uk on 28/08/2008 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=7988359 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist