#include <Wire.h>
#include <Adafruit_SI5351.h>

Adafruit_SI5351 clockgen = Adafruit_SI5351();

/**************************************************************************/
/*
    Arduino setup function (automatically called at startup)
*/
/**************************************************************************/
void setup(void) 
{
  Serial.begin(9600);
  Serial.println("Si5351 Clockgen Test"); Serial.println("");
  
  /* Initialise the sensor */
  if (clockgen.begin() != ERROR_NONE)
  {
    /* There was a problem detecting the IC ... check your connections */
    Serial.print("Ooops, no Si5351 detected ... Check your wiring or I2C ADDR!");
    while(1);
  }
  Serial.println("OK!");

  /* INTEGER ONLY MODE --> most accurate output */  
  /* Setup PLLA to integer only mode @ 900MHz (must be 600..900MHz) içi 200MHz*/
  /* Set Multisynth 0 to 112.5MHz using integer only mode (div by 4/6/8) içi par 8*/
  /* 10MHz * 20 = 200 MHz, then 200 MHz / 10 = 25 MHz */
  Serial.println("Set PLLA to 200MHz");
  clockgen.setupPLLInt(SI5351_PLL_A, 20);
  Serial.println("Set Output #0 to 25MHz");  
  clockgen.setupMultisynthInt(0, SI5351_PLL_A, SI5351_MULTISYNTH_DIV_8);

  /* FRACTIONAL MODE --> More flexible but introduce clock jitter */
  /* Setup PLLB to fractional mode @722.041012MHz (XTAL * 72 + 6599/32332) */
  /* Setup Multisynth 1 to 25.787179MHz (PLLB/28) */
  clockgen.setupPLL(SI5351_PLL_B, 72, 6599, 32332);
  Serial.println("Set Output #1 to 25.787179MHz");  
  clockgen.setupMultisynth(1, SI5351_PLL_B, 28, 0, 1);

  /* Multisynth 2 is not yet used and won't be enabled, but can be */
  /* Use PLLB @ 616.66667MHz, then divide by 900 -> 685.185 KHz */
  /* then divide by 64 for 10.706 KHz */
  /* configured using either PLL in either integer or fractional mode */

  Serial.println("Set Output #2 to 10.706 KHz");  
  clockgen.setupMultisynth(2, SI5351_PLL_B, 900, 0, 1);
  clockgen.setupRdiv(2, SI5351_R_DIV_64);
    
  /* Enable the clocks */
  clockgen.enableOutputs(true);
}

/**************************************************************************/
/*
    Arduino loop function, called once 'setup' is complete (your own code
    should go here)
*/
/**************************************************************************/
void loop(void) 
{  
}