Add serialTimeoutGNSS setting to debug menu

Author: nseidle

Firmware/RTK_Surveyor/Begin.ino

@@ -271,7 +271,7 @@ void beginUART2()
 void pinUART2Task( void *pvParameters )
 {
   serialGNSS.setRxBufferSize(SERIAL_SIZE_RX);
-  serialGNSS.setTimeout(0);
+  serialGNSS.setTimeout(settings.serialTimeoutGNSS);
   serialGNSS.begin(settings.dataPortBaud); //UART2 on pins 16/17 for SPP. The ZED-F9P will be configured to output NMEA over its UART1 at the same rate.
 
   uart2pinned = true;

Firmware/RTK_Surveyor/Form.ino

@@ -397,6 +397,7 @@ void createSettingsString(char* settingsCSV)
   stringRecord(settingsCSV, "externalPulsePolarity", settings.externalPulsePolarity);
   stringRecord(settingsCSV, "enableExternalHardwareEventLogging", settings.enableExternalHardwareEventLogging);
   stringRecord(settingsCSV, "profileName", settings.profileName);
+  stringRecord(settingsCSV, "serialTimeoutGNSS", settings.serialTimeoutGNSS);
 
   strcat(settingsCSV, "\0");
   Serial.printf("settingsCSV len: %d\n\r", strlen(settingsCSV));
@@ -511,6 +512,8 @@ void updateSettingWithValue(const char *settingName, const char* settingValueStr
     strcpy(settings.ntripClient_wifiPW, settingValueStr);
   else if (strcmp(settingName, "ntripClient_TransmitGGA") == 0)
     settings.ntripClient_TransmitGGA = settingValueBool;
+  else if (strcmp(settingName, "serialTimeoutGNSS") == 0)
+    settings.serialTimeoutGNSS = settingValue;
 
   //Unused variables - read to avoid errors
   else if (strcmp(settingName, "measurementRateSec") == 0) {}

Firmware/RTK_Surveyor/NVM.ino

@@ -217,7 +217,7 @@ void recordProfileNumber(uint8_t profileNumber, bool markForUpdate)
     return;
   }
   fileProfileNumber.write(profileNumber);
-  fileProfileNumber.write(markForUpdate); //If true, ZED will be config'd next POR  
+  fileProfileNumber.write(markForUpdate); //If true, ZED will be config'd next POR
   fileProfileNumber.close();
 }
 
@@ -357,6 +357,7 @@ void recordSystemSettingsToFile()
       settingsFile.println("ntripClient_wifiSSID=" + (String)settings.ntripClient_wifiSSID);
       settingsFile.println("ntripClient_wifiPW=" + (String)settings.ntripClient_wifiPW);
       settingsFile.println("ntripClient_TransmitGGA=" + (String)settings.ntripClient_TransmitGGA);
+      settingsFile.println("serialTimeoutGNSS=" + (String)settings.serialTimeoutGNSS);
 
       //Record constellation settings
       for (int x = 0 ; x < MAX_CONSTELLATIONS ; x++)
@@ -786,6 +787,8 @@ bool parseLine(char* str) {
     strcpy(settings.ntripClient_wifiPW, settingValue);
   else if (strcmp(settingName, "ntripClient_TransmitGGA") == 0)
     settings.ntripClient_TransmitGGA = d;
+  else if (strcmp(settingName, "serialTimeoutGNSS") == 0)
+    settings.serialTimeoutGNSS = d;
 
   //Check for bulk settings (constellations and message rates)
   //Must be last on else list

Firmware/RTK_Surveyor/menuSystem.ino

@@ -172,6 +172,9 @@ void menuDebug()
     if (settings.enableResetDisplay == true) Serial.println(F("Enabled"));
     else Serial.println(F("Disabled"));
 
+    Serial.print(F("9) GNSS Serial Timeout: "));
+    Serial.println(settings.serialTimeoutGNSS);
+
     Serial.println(F("e) Erase LittleFS"));
 
     Serial.println(F("r) Force system reset"));
@@ -249,6 +252,19 @@ void menuDebug()
         recordSystemSettings(); //Record to NVM
       }
     }
+    else if (incoming == '9')
+    {
+      Serial.print(F("Enter GNSS Serial Timeout in milliseconds (0 to 1000): "));
+      uint16_t serialTimeoutGNSS = getNumber(menuTimeout); //Timeout after x seconds
+      if (serialTimeoutGNSS < 0 || serialTimeoutGNSS > 1000) //Arbitrary 1s limit
+      {
+        Serial.println(F("Error: Timeout is out of range"));
+      }
+      else
+      {
+        settings.serialTimeoutGNSS = serialTimeoutGNSS; //Recorded to NVM and file at main menu exit
+      }
+    }
     else if (incoming == 'e')
     {
       Serial.println("Erasing LittleFS and resetting");

Firmware/RTK_Surveyor/settings.h

@@ -341,6 +341,8 @@ typedef struct struct_settings {
   char ntripClient_wifiPW[50] = "parachutes";
   bool ntripClient_TransmitGGA = true;
 
+  int16_t serialTimeoutGNSS = 1; //In ms - used during SerialGNSS.begin. Number of ms to pass of no data before hardware serial reports data available.
+
 } Settings;
 Settings settings;