68. Simultaneous Square Wave Generation

Design a system using Arduino UNO that:

  1. Generates two precise square waves at the same time:
    • 307 kHz on Pin 11 (OC2A)
    • 570 kHz on Pin 9 (OC1A)
  2. The frequencies must be accurate within ±1% tolerance.
  3. The microcontroller remains free for other critical tasks since timers handle all work.

While considering the following conditions:

  • An important task is continuously running in a void loop().
  • It needs to be constantly executed, and cannot be altered or changed.

 Your void loop() should be as given below.

void loop() {
  while (true) {
    //In this loop, the Microcontroller monitors and performs important tasks constantly.
  }
}


 

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