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@NT7S NT7S/si5351_vcxo.ino
Last active Nov 9, 2016

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/*
* si5351_vcxo.ino - Example for using the Si5351B VCXO functions
* with Si5351Arduino library
*
* Copyright (C) 2015 Jason Milldrum <milldrum@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "si5351.h"
#include "Wire.h"
Si5351 si5351;
void setup()
{
// Start serial and initialize the Si5351
Serial.begin(57600);
si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0, 250000);
// Set VCXO osc to 876 MHz (146 MHz x 6), 40 ppm pull
si5351.set_vcxo(87600000000ULL, 40);
// Set CLK0 to be locked to VCXO
si5351.set_ms_source(SI5351_CLK0, SI5351_PLLB);
// Tune to 146 MHz center frequency
si5351.set_freq_manual(14600000000ULL, 87600000000ULL, SI5351_CLK0);
si5351.update_status();
delay(500);
}
void loop()
{
// Read the Status Register and print it every 10 seconds
si5351.update_status();
Serial.print("corr: ");
Serial.print(si5351.get_correction());
Serial.print(" SYS_INIT: ");
Serial.print(si5351.dev_status.SYS_INIT);
Serial.print(" LOL_A: ");
Serial.print(si5351.dev_status.LOL_A);
Serial.print(" LOL_B: ");
Serial.print(si5351.dev_status.LOL_B);
Serial.print(" LOS: ");
Serial.print(si5351.dev_status.LOS);
Serial.print(" REVID: ");
Serial.println(si5351.dev_status.REVID);
delay(10000);
}
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