avoid rs92 decode stack overflow, remove unused code

RX_FSK/RX_FSK.ino

@@ -159,6 +159,9 @@ String processor(const String& var) {
     snprintf(tmpstr, 128, "Fingerprint %d (%s)", sonde.fingerprint, fpstr);
     return String(tmpstr);
   }
+  if (var == "EPHSTATE") {
+    return String(ephtxt[ephstate]);
+  }
   return String();
 }
 
@@ -2838,6 +2841,7 @@ void loopWifiScan() {
     }
     if (hasRS92) {
       geteph();
+      if(ephstate==EPH_PENDING) ephstate=EPH_ERROR;
       get_eph("/brdc");
     }
     delay(3000);

RX_FSK/data/index.html

@@ -64,6 +64,8 @@
 <br>
    <br>
    Autodetect info: %AUTODETECT_INFO%<br>
+   <br>
+    RS92 RINEX eph state: %EPHSTATE%<br>
     <br>
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License as

RX_FSK/src/geteph.cpp

@@ -12,6 +12,9 @@ extern WiFiClient client;
 
 //static const char *ftpserver = "www.ngs.noaa.gov";
 char outbuf[128];
+uint8_t ephstate = EPH_NOTUSED;
+//enum EPHSTATE { EPH_NOTUSED, EPH_PENDING, EPH_TIMEERR, EPH_ERROR, EPH_EPHERROR, EPH_GOOD };
+char *ephtxt[] = { "Disabled", "Pending", "Time error", "Fetch error", "Read error", "Good" };
 
 uint8_t getreply() {
 	String s = client.readStringUntil('\n');
@@ -45,10 +48,12 @@ void writeFully(File &file, uint8_t *buf, size_t len)
 
 void geteph() {
 	// Set current time via network...	
+	ephstate = EPH_PENDING;
 	struct tm tinfo;
 	configTime(0, 0, "pool.ntp.org");
 	bool ok = getLocalTime(&tinfo, 2000);  // wait max 2 seconds to get current time via ntp
 	if(!ok) {
+		ephstate = EPH_TIMEERR;
 		Serial.println("Failed to get current date/time");
 		return;
 	}
@@ -66,6 +71,7 @@ void geteph() {
 		if(tsstr && strlen(tsstr)>=9) {
 			if(strcmp(nowstr, ts.c_str())<=0) {
 				Serial.println("local brdc is up to date\n");
+				ephstate = EPH_GOOD;
 				return;
 			}
 		}
@@ -221,6 +227,7 @@ void geteph() {
         snprintf(buf, 16, "Done: %d B    ",total);
         buf[16]=0;
         disp.rdis->drawString(0,5*dispys,buf);
+	ephstate = EPH_GOOD;
 	delay(1000);
 
 	free(obuf);

RX_FSK/src/geteph.h

@@ -1,3 +1,11 @@
+#include <inttypes.h>
 
+#ifndef GETEPH_H
+#define GETEPH_H
 void geteph();
 
+enum EPHSTATE { EPH_NOTUSED, EPH_PENDING, EPH_TIMEERR, EPH_ERROR, EPH_EPHERROR, EPH_GOOD };
+
+extern uint8_t ephstate;
+extern char *ephtxt[];
+#endif

RX_FSK/src/rs92gps.cpp

@@ -50,13 +50,14 @@
 #include <SPIFFS.h>
 #include "nav_gps_vel.h"
 #include "rs92gps.h"
+#include "geteph.h"
 #include "Sonde.h"
 
 
 
 gpx_t gpx;
 
-int option_verbose = 0,  // ausfuehrliche Anzeige
+const int option_verbose = 0,  // ausfuehrliche Anzeige
     option_raw = 1,      // rohe Frames
     option_inv = 0,      // invertiert Signal
     option_res = 0,      // genauere Bitmessung
@@ -827,27 +828,33 @@ int naiv_2Dfix(int N, SAT_t sats[], double alt) {
 int get_GPSkoord(int N) {
     double lat, lon, alt, rx_cl_bias;
     double vH, vD, vU;
-    double lat1s, lon1s, alt1s,
+    double pos_ecef[3], dpos_ecef[3],
-           lat0 , lon0 , alt0 , pos0_ecef[3];
-    double pos_ecef[3], pos1s_ecef[3], dpos_ecef[3],
            vel_ecef[3], dvel_ecef[3];
     double gdop, gdop0 = 1000.0;
     //double hdop, vdop, pdop;
-    int i0, i1, i2, i3, j, k, n;
+    int i0, i1, i2, i3, j;
     int nav_ret = 0;
     int num = 0;
     SAT_t Sat_A[4];
+#if 0
+    int k, n;
+    double lat1s, lon1s, alt1s,
+           lat0 , lon0 , alt0 , pos0_ecef[3];
+    double pos1s_ecef[3];
     SAT_t Sat_B[12]; // N <= 12
     SAT_t Sat_B1s[12];
     SAT_t Sat_C[12]; // 11
-    double diter = 0;
     int exN = -1;
+#endif
+    double diter = 0;
 
+#if 0
     if (option_vergps == 8) {
         fprintf(stdout, "  sats: ");
         for (j = 0; j < N; j++) fprintf(stdout, "%02d ", prn[j]);
         fprintf(stdout, "\n");
     }
+#endif
 
     gpx.lat = gpx.lon = gpx.alt = 0;
 
@@ -878,6 +885,7 @@ int get_GPSkoord(int N) {
                     for (j=0; j<3; j++) vel_ecef[j] += dvel_ecef[j];
                     get_GPSvel(lat, lon, vel_ecef, &vH, &vD, &vU);
                 }
+#if 0
                 if (option_vergps == 8) {
                     // gdop = sqrt(DOP[0]+DOP[1]+DOP[2]+DOP[3]); // s.o.
                     //hdop = sqrt(DOP[0]+DOP[1]);
@@ -898,6 +906,7 @@ int get_GPSkoord(int N) {
                         fprintf(stdout, "\n");
                     }
                 }
+#endif
             }
             else gdop = -1;
 
@@ -921,6 +930,7 @@ int get_GPSkoord(int N) {
     }}}}
     }
 
+#if 0
     if (option_vergps == 8  ||  option_vergps == 2) {
 
         for (j = 0; j < N; j++) Sat_B[j] = sat[prn[j]];
@@ -1047,6 +1057,7 @@ int get_GPSkoord(int N) {
         }
 
     }
+#endif
 
     return num;
 }
@@ -1184,6 +1195,8 @@ void get_eph(const char *file) {
         if (ephs) {
             ephem = 1;
             almanac = 0;
+        } else {
+	    ephstate = EPH_EPHERROR;
 	}
 	Serial.printf("reading RNX done, result is %d, ephs=%p\n", ephem, ephs);
         if (!option_der) d_err = 1000;

platformio.ini

@@ -10,12 +10,12 @@
 
 [platformio]
 src_dir = RX_FSK
-lib_dir = libraries
+lib_dir = RX_FSK
 data_dir = RX_FSK/data
 
 [extra]
 lib_deps_builtin =
-    SondeLib
+    src
 lib_deps_external =
     olikraus/U8g2 @ ^2.28.8
     AXP202X_Library