In my youthful ignorance I ordered a 20mhz atmega 1284p replacement for my sanguinololu which ran with a 16mhz chip before. Apart from the fact that I didnt find any 16mhz chips sold and with that start to wonder why my board supplier used it, I need to remedy that situation somehow.
So my potenitally stupid question is: if its possible to have a 20mhz chip run on 16mhz and if I can "downclock" it somehow. From what I gather about "setting fuses" lots of people are playing around with clockspeeds but I havent found an example for the 1284p. Is there a source on how to navitgate through "http://www.engbedded.com/fusecalc"?
So my potenitally stupid question is: if its possible to have a 20mhz chip run on 16mhz and if I can "downclock" it somehow. From what I gather about "setting fuses" lots of people are playing around with clockspeeds but I havent found an example for the 1284p. Is there a source on how to navitgate through "http://www.engbedded.com/fusecalc"?