Added support for GST frame

minmea.c

@@ -287,6 +287,8 @@ enum minmea_sentence_id minmea_sentence_id(const char *sentence)
         return MINMEA_SENTENCE_GGA;
     if (!strcmp(type+2, "GSA"))
         return MINMEA_SENTENCE_GSA;
+	if (!strcmp(type+2,"GST"))
+		return MINMEA_SENTENCE_GST;
 
     return MINMEA_UNKNOWN;
 }
@@ -385,6 +387,29 @@ bool minmea_parse_gsa(struct minmea_sentence_gsa *frame, const char *sentence)
     return true;
 }
 
+bool minmea_parse_gst(struct minmea_sentence_gst *frame, const char *sentence)
+{
+    // $GPGST,024603.00,3.2,6.6,4.7,47.3,5.8,5.6,22.0*58
+    char type[6];
+
+    if (!minmea_scan(sentence, "tTfffffff",
+            type,
+            &frame->time,
+            &frame->RMS_deviation,&frame->RMS_deviation_scale,
+			&frame->semi_major_sd,&frame->semi_major_sd_scale,
+            &frame->semi_minor_sd,&frame->semi_minor_sd_scale,
+            &frame->semi_major_orientation,&frame->semi_major_orientation_scale,
+            &frame->lattitude_error_deviation,&frame->lattitude_error_deviation_scale,
+            &frame->longitude_error_deviation,&frame->longitude_error_deviation_scale,
+            &frame->altitude_error_deviation,&frame->altitude_error_deviation_scale))
+        return false;
+    if (strcmp(type+2, "GST"))
+        return false;
+
+    return true;
+}
+
+
 int minmea_gettimeofday(struct timeval *tv, const struct minmea_date *date, const struct minmea_time *time)
 {
     if (date->year == -1 || time->hours == -1)

minmea.h

@@ -29,6 +29,7 @@ enum minmea_sentence_id {
     MINMEA_SENTENCE_RMC,
     MINMEA_SENTENCE_GGA,
     MINMEA_SENTENCE_GSA,
+	MINMEA_SENTENCE_GST
 };
 
 struct minmea_date {
@@ -67,6 +68,17 @@ struct minmea_sentence_gga {
     int dgps_age;
 };
 
+struct minmea_sentence_gst {
+struct minmea_time time;
+int RMS_deviation, RMS_deviation_scale;
+int semi_major_sd, semi_major_sd_scale;
+int semi_minor_sd, semi_minor_sd_scale;
+int semi_major_orientation, semi_major_orientation_scale;
+int lattitude_error_deviation, lattitude_error_deviation_scale;
+int longitude_error_deviation, longitude_error_deviation_scale;
+int altitude_error_deviation, altitude_error_deviation_scale;
+};
+
 enum minmea_gsa_mode {
     MINMEA_GPGSA_MODE_AUTO = 'A',
     MINMEA_GPGSA_MODE_FORCED = 'M',
@@ -121,6 +133,7 @@ bool minmea_scan(const char *sentence, const char *format, ...);
 bool minmea_parse_rmc(struct minmea_sentence_rmc *frame, const char *sentence);
 bool minmea_parse_gga(struct minmea_sentence_gga *frame, const char *sentence);
 bool minmea_parse_gsa(struct minmea_sentence_gsa *frame, const char *sentence);
+bool minmea_parse_gst(struct minmea_sentence_gst *frame, const char *sentence);
 
 /**
  * Convert GPS UTC date/time representation to a UNIX timestamp.