update ctcss getfreq and example

examples/CTCSS/CTCSS.ino

@@ -95,12 +95,13 @@ void setup() {
   radio.setRfPower(0);
 
   // CTCSS Setup code
-  ctcss_tone = 103.5;
+  ctcss_tone = 134.4;
   radio.setCtcss(ctcss_tone);
   radio.enableCtcss();
-
+  Serial.print("ctcss tone: ");
+  Serial.println(radio.getCtcssFreqHz());
   // mute audio until we get a CTCSS tone
-  radio.setMute();
+//  radio.setMute();
   muted = true;
     
   // configure Arduino LED for
@@ -116,13 +117,13 @@ void loop() {
     if (radio.getCtcssToneDetected()) {
       if (muted) {
         muted = false;
-        radio.setUnmute();
+  //      radio.setUnmute();
         Serial.println("tone");
       }
     } else {
       if (!muted) {
         muted = true;
-        radio.setMute();
+  //      radio.setMute();
         Serial.println("no tone");
       }
     }

examples/Morse/Morse.ino

@@ -1,7 +1,7 @@
 /* Hamshield
  * Example: Morse Code Transceiver
  * 
- * Serail to Morse transceiver. Sends characters from the Serial
+ * Serial to Morse transceiver. Sends characters from the Serial
  * port over the air, and vice versa.
  * Connect the HamShield to your Arduino. Screw the antenna 
  * into the HamShield RF jack. Connect the Arduino to wall 

src/HamShield.cpp

@@ -770,8 +770,6 @@ void HamShield::setCtcss(float freq_Hz) {
 }
 
 void HamShield::setCtcssFreq(uint16_t freq_milliHz){
-    HSwriteWord(devAddr, A1846S_CTCSS_FREQ_REG, freq_milliHz);
-	
 	// set RX Ctcss match thresholds (based on frequency)
 	// calculate thresh based on freq
 	float f = ((float) freq_milliHz)/100;
@@ -779,14 +777,18 @@ void HamShield::setCtcssFreq(uint16_t freq_milliHz){
 	setCtcssDetThreshIn(thresh);
 	setCtcssDetThreshOut(thresh);
 	
+	HSwriteWord(devAddr, A1846S_CTCSS_FREQ_REG, freq_milliHz);
 }
 uint16_t HamShield::getCtcssFreqMilliHz(){
-    HSreadWord(devAddr, A1846S_CTCSS_FREQ_REG, radio_i2c_buf);
-    
-    return radio_i2c_buf[0];
+    return getCtcssFreqHz()*100;
 }
 float HamShield::getCtcssFreqHz() {
-	return ((float)(getCtcssFreqMilliHz()))/100;
+	//y = mx + b
+	float m = 1.678;
+	float b = -3.3;
+    HSreadWord(devAddr, A1846S_CTCSS_FREQ_REG, radio_i2c_buf);
+	float f = (float) radio_i2c_buf[0];
+	return (f/m-b)/100; 
 }
 
 void HamShield::setCtcssFreqToStandard(){