LG290P: apply GNSS defaults after reset for firmware update

Firmware/RTK_Everywhere/Begin.ino

@@ -715,6 +715,7 @@ void beginBoard()
         present.antennaPhaseCenter_mm = 37.5; // APC of SPK-6E helical L1/L2/L5 antenna
         present.needsExternalPpl = true;      // Uses the PointPerfect Library
         present.gnss_to_uart = true;
+        present.gnssUpdatePort = "CH342 Channel B";
 
         // The following are present on the optional shield. Devices will be marked offline if shield is not present.
         present.charger_mcp73833 = true;
@@ -874,6 +875,7 @@ void beginBoard()
         present.needsExternalPpl = true; // Uses the PointPerfect Library
         present.fastPowerOff = true;
         present.invertedFastPowerOff = true; // Drive PWRKILL high to cause powerdown
+        present.gnssUpdatePort = "CH342 Channel A";
 
         // We can't enable GNSS features here because we don't know if lg290pFirmwareVersion is >= v05
         // present.minElevation = true;

Firmware/RTK_Everywhere/menuSystem.ino

@@ -608,13 +608,21 @@ void menuDebugHardware()
             else if (present.gnss_lg290p)
             {
                 systemPrintln();
-                systemPrintf("QGNSS must be connected to CH342 Port B at %dbps. Begin firmware update from QGNSS (hit "
-                             "the play button) then reset the LG290P.\r\n",
+                systemPrintf("QGNSS must be connected to %s at %dbps.\r\n",
+                             present.gnssUpdatePort,
                              settings.dataPortBaud);
+                systemPrintf("Begin firmware update from QGNSS (hit the play button) "
+                             "then reset the LG290P using menu choice %d.\r\n",
+                             incoming);
                 gnssReset();
                 delay(100);
                 gnssBoot();
                 systemPrintln("LG290P reset complete.");
+                gnssConfigureDefaults(); // Set all bits in the request bitfield to cause the GNSS receiver to go
+                                         // through a full (re)configuration
+                recordSystemSettings();  // Record these settings to unit
+                systemPrintln("GNSS defaults have been applied. GNSS will be configured when you exit the menu.");
+                systemPrintln("Wait for the update to complete. Then exit the menu.");
             }
         }
         else if (incoming == 14)

Firmware/RTK_Everywhere/settings.h

@@ -1968,6 +1968,8 @@ struct struct_present
     bool dynamicModel = false; // ZED, mosaic, UM980 have dynamic models. LG290P does not.
     bool gpioExpanderSwitches = false; // Used on Flex
     bool tiltPossible = false; //Flex may have a tilt IMU
+
+    const char *gnssUpdatePort = ""; // "CH342 Channel A" etc.
 } present;
 
 // Monitor which devices on the device are on or offline.