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Does The Uno Use A Resonator Or A Crystal For The Processor Clock? |
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Answer» The FT232RL had an internal OSCILLATOR WHEREAS the 8u2 does not. That means there is a 16mhz CRYSTAL next to the 8u2 to allow it to keep up with precise USB timing. On the other hand, the Atmega328p CHIP that is the core processor in the Arduino now has a 16mhz ceramic resonator. Ceramic resonators are slightly less precise than crystals but we have been assured that this ONE was specified and works quite well. The FT232RL had an internal oscillator whereas the 8u2 does not. That means there is a 16mhz crystal next to the 8u2 to allow it to keep up with precise USB timing. On the other hand, the Atmega328p chip that is the core processor in the Arduino now has a 16mhz ceramic resonator. Ceramic resonators are slightly less precise than crystals but we have been assured that this one was specified and works quite well. |
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