fix bad commit

Adafruit_GPS.cpp

@@ -168,24 +168,12 @@ char Adafruit_GPS::read(void) {
   if(gpsSwSerial) {
     if(!gpsSwSerial->available()) return c;
     c = gpsSwSerial->read();
-<<<<<<< HEAD
   } else 
 #endif
-=======
-  }
-  else
->>>>>>> FETCH_HEAD
   {
     if(!gpsHwSerial->available()) return c;
     c = gpsHwSerial->read();
   }
-#else
-     //   if(!gpsHwSerial->available()) return c;
-      //  c = gpsHwSerial->read();
-    if(!Serial1.available()) return c;
-    c = Serial1.read();
-#endif
-
 
   //Serial.print(c);
 
@@ -231,6 +219,7 @@ Adafruit_GPS::Adafruit_GPS(NewSoftSerial *ser)
 }
 #endif
 
+// Constructor when using HardwareSerial
 Adafruit_GPS::Adafruit_GPS(HardwareSerial *ser) {
   common_init();  // Set everything to common state, then...
   gpsHwSerial = ser; // ...override gpsHwSerial with value passed.
@@ -238,13 +227,10 @@ Adafruit_GPS::Adafruit_GPS(HardwareSerial *ser) {
 
 // Initialization code used by all constructor types
 void Adafruit_GPS::common_init(void) {
-<<<<<<< HEAD
 #ifdef __AVR__
   gpsSwSerial = NULL; // Set both to NULL, then override correct
 #endif
   gpsHwSerial = NULL; // port pointer in corresponding constructor
-=======
->>>>>>> FETCH_HEAD
   recvdflag   = false;
   paused      = false;
   lineidx     = 0;
@@ -267,12 +253,6 @@ void Adafruit_GPS::begin(uint16_t baud)
     gpsSwSerial->begin(baud);
   else 
     gpsHwSerial->begin(baud);
-<<<<<<< HEAD
-=======
-#else
-  //  gpsHwSerial->begin(baud);
-    Serial1.begin(baud);
->>>>>>> FETCH_HEAD
 #endif
 
   delay(10);
@@ -282,19 +262,9 @@ void Adafruit_GPS::sendCommand(char *str) {
 #ifdef __AVR__
   if(gpsSwSerial) 
     gpsSwSerial->println(str);
-<<<<<<< HEAD
   else    
 #endif
     gpsHwSerial->println(str);
-=======
-  else
-    gpsHwSerial->println(str);
-#else
-  //  gpsHwSerial->println(str);
-    Serial1.println(str);
-#endif
-
->>>>>>> FETCH_HEAD
 }
 
 boolean Adafruit_GPS::newNMEAreceived(void) {

examples/leo_locus_start/leo_locus_start.ino

@@ -37,12 +37,18 @@ HardwareSerial mySerial = Serial1;
 // Set to 'true' if you want to debug and listen to the raw GPS sentences
 #define GPSECHO  true
 
+// this keeps track of whether we're using the interrupt
+// off by default!
+boolean usingInterrupt = false;
+void useInterrupt(boolean); // Func prototype keeps Arduino 0023 happy
+
 void setup()  
 {    
   // connect at 115200 so we can read the GPS fast enuf and
   // also spit it out
   Serial.begin(115200);
-  delay(2000);
+  while (!Serial);
+  delay(1000);
   Serial.println("Adafruit GPS logging start test!");
 
   // 9600 NMEA is the default baud rate for MTK - some use 4800
@@ -54,6 +60,10 @@ void setup()
   // Default is 1 Hz update rate
   GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);
 
+  // the nice thing about this code is you can have a timer0 interrupt go off
+  // every 1 millisecond, and read data from the GPS for you. that makes the
+  // loop code a heck of a lot easier!
+  useInterrupt(true);
   delay(500);
   Serial.print("\nSTARTING LOGGING....");
   if (GPS.LOCUS_StartLogger())
@@ -65,9 +75,38 @@ void setup()
 
 void loop()                     // run over and over again
 {
-  char c = GPS.read();
-  // if you want to debug, this is a good time to do it!
-  if ((c) && (GPSECHO))
-    Serial.write(c);  
+   // do nothing! all reading and printing is done in the interrupt
 }
 
+/******************************************************************/
+
+// Interrupt is called once a millisecond, looks for any new GPS data, and stores it
+SIGNAL(TIMER0_COMPA_vect) {
+  char c = GPS.read();
+  // if you want to debug, this is a good time to do it!
+  if (GPSECHO && c) {
+#ifdef UDR0
+    UDR0 = c;  
+    // writing direct to UDR0 is much much faster than Serial.print 
+    // but only one character can be written at a time. 
+#else
+    Serial.write(c);
+#endif
+  }
+}
+
+void useInterrupt(boolean v) {
+  if (v) {
+    // Timer0 is already used for millis() - we'll just interrupt somewhere
+    // in the middle and call the "Compare A" function above
+    OCR0A = 0xAF;
+    TIMSK0 |= _BV(OCIE0A);
+    usingInterrupt = true;
+  } else {
+    // do not call the interrupt function COMPA anymore
+    TIMSK0 &= ~_BV(OCIE0A);
+    usingInterrupt = false;
+  }
+}
+
+