eXtreme Burner 

Write programs for AVR microcontrollers. The tools supports several clock sources such as External Low Frequency Crystal, External Clock, Calibrated Internal RC Oscillator, etc.

The eXtreme Burner- AVR is a full graphical user interface (GUI) AVR series of MCU that supports several types of clock sources for various applications. It enables you to read and write a RC Oscillator or a perfect high speed crystal oscillator and you can select from the following clock sources:

- external Clock.

- calibrated Internal RC Oscillator.

- external RC Oscillator.

- external Low Frequency Crystal.

- external Crystal/Ceramic Resonator.