In SX Microcontrollers, SX/B Compiler and SX-Key Tool, adn29 wrote: Thank you for your help... I am using the 50 MHz resonator that came with the kit but I can use the 4MHz if it is better. I am not sure about the mimimum on and off time of the pulses but the pulse is generated from a reed swich which is connected to a rotating mechanism of an anemometer. One rev is one pulse. I dont know if this helps... ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=88298#m88357 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2005 (http://www.dotNetBB.com)