Added support libraries

Uploaded Si5351 library and encoder library
2025-11-03 20:26:35 -06:00 · 2015-09-21 15:45:16 -05:00
parent e126029540
commit 810a91b366
18 changed files with 4464 additions and 0 deletions
--- a/si5351/examples/si5351calibration/si5351calibration.ino
+++ b/si5351/examples/si5351calibration/si5351calibration.ino
@@ -0,0 +1,115 @@
+/* Simple calibration routine for the Si5351 breakout board.
+ *
+ * Copyright 2015 Paul Warren <pwarren@pwarren.id.au>
+ *
+ * Uses code from https://github.com/darksidelemm/open_radio_miniconf_2015
+ * and the old version of the calibration sketch
+ *
+ * This sketch  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.
+ * Foobar 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.
+ * If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "si5351.h"
+#include "Wire.h"
+
+Si5351 si5351;
+
+int32_t cal_factor;
+int32_t old_cal;
+
+uint64_t rx_freq;
+uint64_t target_freq = 1000000000ULL; // 10 MHz, in hundredths of hertz
+
+void setup()
+{
+  // Start serial and initialize the Si5351
+  Serial.begin(57600);
+  si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0);
+
+  // get old cal factor
+  //old_cal = si5351.get_correction();  
+  si5351.set_correction(0);
+  // start on target frequency
+  si5351.set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
+  si5351.set_freq(target_freq, SI5351_PLL_FIXED, SI5351_CLK0);
+}
+
+void loop()
+{
+  si5351.update_status();
+  if (si5351.dev_status.SYS_INIT == 1) {
+     Serial.println("Initialising Si5351, you shouldn't see many of these!");
+     delay(500);
+  } else {
+    cal_factor = 0;
+//    Serial.print("Old cal factor was: ");
+//    Serial.println(old_cal);
+//    Serial.println("Cal factor now set to 0");
+//    si5351.set_correction(0);
+    Serial.println();
+    Serial.println(F("Adjust until your frequency counter reads as close to 10 MHz as possible"));
+    vfo_interface();
+    Serial.print(F("Calibration factor is "));
+    Serial.println(cal_factor);
+    Serial.println("Setting calibration factor");
+    si5351.set_correction(cal_factor);
+    Serial.println("Resetting target frequency");
+    si5351.set_freq(target_freq, SI5351_PLL_FIXED, SI5351_CLK0);
+  }  
+  
+  
+}
+
+static void flush_input(void)
+{
+  while (Serial.available() > 0)
+  Serial.read();
+}
+
+static void vfo_interface(void)
+{
+  rx_freq = target_freq;
+  Serial.println(F("   Up:   r   t  y  u  i   o  p"));
+  Serial.println(F(" Down:   f   g  h  j  k   l  ;"));
+  Serial.println(F("   Hz: 0.01 0.1 1 10 100 1K 10k"));
+  while (1) {
+  if (Serial.available() > 0) {
+    char c = Serial.read();
+    switch (c) {
+      case 'q':
+        flush_input();
+        return;
+      case 'r': rx_freq += 1; break;
+      case 'f': rx_freq -= 1; break;
+      case 't': rx_freq += 10; break;
+      case 'g': rx_freq -= 10; break;
+      case 'y': rx_freq += 100; break;
+      case 'h': rx_freq -= 100; break;
+      case 'u': rx_freq += 1000; break;
+      case 'j': rx_freq -= 1000; break;
+      case 'i': rx_freq += 10000; break;
+      case 'k': rx_freq -= 10000; break;
+      case 'o': rx_freq += 100000; break;
+      case 'l': rx_freq -= 100000; break;
+      case 'p': rx_freq += 1000000; break;
+      case ';': rx_freq -= 1000000; break;
+      default:
+        // Do nothing
+      continue;
+    }
+    si5351.set_freq(rx_freq,SI5351_PLL_FIXED,SI5351_CLK0);
+    cal_factor = (int32_t)(target_freq - rx_freq);
+    Serial.print("Current difference:");
+    Serial.println(cal_factor);
+    }
+  }
+}
+