Delay switching of USB output behavior until setup and menuMain exits

Author: LeeLeahy2

Firmware/RTK_Everywhere/RTK_Everywhere.ino

@@ -445,6 +445,22 @@ float batteryChargingPercentPerHour;
 #include "bluetoothSelect.h"
 #endif // COMPILE_BT
 
+// This value controls the data that is output from the USB serial port
+// to the host PC.  By default (false) status and debug messages are output
+// to the USB serial port.  When this value is set to true then the status
+// and debug messages are discarded and only GNSS data is output to USB
+// serial.
+//
+// Switching from status and debug messages to GNSS output is done in two
+// places, at the end of setup and at the end of maenuMain.  In both of
+// these places the new value comes from settings.enableGnssToUsbSerial.
+// Upon boot status and debug messages are output at least until the end
+// of setup.  Upon entry into menuMain, this value is set false to again
+// output menu output, status and debug messages to be output.  At the end
+// of setup the value is updated and if enabled GNSS data is sent to the
+// USB serial port and PC.
+volatile bool forwardGnssDataToUsbSerial;
+
 #define platformPrefix platformPrefixTable[productVariant] // Sets the prefix for broadcast names
 
 #include <driver/uart.h>    //Required for uart_set_rx_full_threshold() on cores <v2.0.5
@@ -1113,6 +1129,10 @@ void setup()
         systemPrintf("%8d mSec: Total boot time\r\n", bootTime[bootTimeIndex]);
         systemPrintln();
     }
+
+    // If necessary, switch to sending GNSS data out the USB serial port
+    // to the PC
+    forwardGnssDataToUsbSerial = settings.enableGnssToUsbSerial;
 }
 
 void loop()

Firmware/RTK_Everywhere/menuMain.ino

@@ -28,6 +28,9 @@ void terminalUpdate()
 // Display the main menu configuration options
 void menuMain()
 {
+    // Redirect menu output, status and debug messages to the USB serial port
+    forwardGnssDataToUsbSerial = false;
+
     inMainMenu = true;
     displaySerialConfig(); // Display 'Serial Config' while user is configuring
 
@@ -259,6 +262,9 @@ void menuMain()
     clearBuffer();           // Empty buffer of any newline chars
     btPrintEchoExit = false; // We are out of the menu system
     inMainMenu = false;
+
+    // Change the USB serial output behavior if necessary
+    forwardGnssDataToUsbSerial = settings.enableGnssToUsbSerial;
 }
 
 // Change system wide settings based on current user profile