Richard Urwin wrote: > I found the datasheets ambiguous when I built for the > ATMega16. It says CKOPT should be programmed > for fast resonators, but it does not mention crystals.
Underneath the paragraph about resonators there is a table, Table 4. in my copy of the data sheet. This table tells you how to set CKSEL3..1 for various frequency ranges. It also gives a binary value for CKOPT. From this and knowing that 1 is unprogrammed and 0 1s programmed you can figure out that CKOPT should be programmed for frequencies above 8MHz, just as Brian says. I would have presented it differently, but the information is there. Graham. _______________________________________________ AVR-chat mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-chat
