Internal RC oscillator is specified up to 8MHz, but in reality it can be calibrated to run at up to 12MHz. V-USB has code that does this. HaD, please, work on your terminology.

Posted in Arduino Hacks, Microcontrollers Tagged arduino, crystal oscillator, frequency counter, Teensy. Posts navigation. Newer posts ...

Starting a crystal oscillator fast in an IoT node is an art: the high Q needed for stability means they take milliseconds to get going, just to transmit a 128μs Bluetooth LE packet, and power is at a ...