For the PIC16F872 and PIC16F72 microcontrollers, there are 4 different clock rates available for A/D conversion. Other than copying the rate somebody else used for a similar project, how do you pick the appropriate clock rate? Is this a trade-off between speed and accuracy? If so, how much accuracy must you sacrifice for a higher clock rate? If not, what other factors come into play? -- Jason Hsu http://www.jasonhsu.com/swrwatt.html http://www.jasonhsu.com/swrwatt-c.txt http://www.jasonhsu.com/swrwatt-asm.txt -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist