>Is it possible to realize two independent PWM signales with >the controller hardware of 16C73 / 16C74? > >If it is, wich restrictions are existing ? This is described very well in the '7x data sheet under TIMER1 and PWM sections. Make sure you use the latest version of the datasheet. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================