Diff: gps.h

Revision:

0:0bd73064b7f6

Child:

1:2f5fbb33ae8b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gps.h	Wed Mar 18 00:55:27 2015 +0000
@@ -0,0 +1,66 @@
+
+/*!
+ * Generic definition
+ */
+#ifndef SUCCESS
+#define SUCCESS                                     1
+#endif
+
+#ifndef FAIL
+#define FAIL                                        0  
+#endif
+
+#define NUM_RX_BUFS         6
+#define RX_BUF_SIZE         96
+
+/* Structure to handle the GPS parsed data in ASCII */
+typedef struct
+{
+    char NmeaDataType[6];
+    char NmeaUtcTime[11];
+    char NmeaDataStatus[2];
+    char NmeaLatitude[10];
+    char NmeaLatitudePole[2];
+    char NmeaLongitude[11];
+    char NmeaLongitudePole[2];
+    char NmeaFixQuality[2];
+    char NmeaSatelliteTracked[3];
+    char NmeaHorizontalDilution[6];
+    char NmeaAltitude[8];
+    char NmeaAltitudeUnit[2];
+    char NmeaHeightGeoid[8];
+    char NmeaHeightGeoidUnit[2];
+    char NmeaSpeed[8];
+    char NmeaDetectionAngle[8];
+    char NmeaDate[8];
+}tNmeaGpsData;
+
+class GPS {
+    public:
+        GPS();
+        ~GPS();
+        void enable(bool);
+        bool enabled(void);
+        void service(void);
+        void init(void);
+
+        double Latitude, Longitude;
+        char verbose;   // flag
+        tNmeaGpsData NmeaGpsData;
+        int32_t LatitudeBinary, LongitudeBinary;
+        
+    private:
+        int ParseGPSData(int idx);
+        bool NmeaValidateChecksum(int idx);
+        int NmeaChecksum( char *nmeaStr, uint8_t nmeaStrSize, char * checksum );
+        void on_uart_rx(void);
+        uint8_t rx_buf_lens[NUM_RX_BUFS];
+        uint8_t rx_bufs_in_idx;
+        uint8_t rx_bufs_out_idx;
+        char rx_bufs[NUM_RX_BUFS][RX_BUF_SIZE];
+        void ConvertPositionFromStringToNumerical( );
+        void ConvertPositionIntoBinary( );
+        void pps(void);
+        bool pps_occurred;
+};
+