There is a chance the CPU is running from the internal clock all the time. Check the fuse settings... Svenn :) Hai I am using Atmega 16 with external clock It works fine with this .I found that the microcontroller is running even when there is no external clock Please advice about this Yahoo! Groups Links
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SV: [AVR-Chat] help atmega16
2005-12-13 by Svenn Dahlstrøm