Added VirtualCOMPort example

Author: noah-jonathan rosa

examples/X_NUCLEO_GNSS1A1_VirtualCOMPort/X_NUCLEO_GNSS1A1_VirtualCOMPort.ino

@@ -0,0 +1,34 @@
+volatile uint8_t fromPC[16];
+volatile uint8_t fromGNSS[16];
+volatile unsigned long idxPC = 0;
+volatile unsigned long idxGNSS = 0;
+
+#ifdef ARDUINO_ARCH_STM32
+HardwareSerial Serial1(PA10, PA9);
+#endif
+
+void setup() {
+  Serial.begin(115200);
+  Serial1.begin(115200);
+  pinMode(7, OUTPUT);
+  digitalWrite(7, LOW);
+  delay(1000);
+  digitalWrite(7,HIGH);
+  delay(50);
+}
+
+
+void loop() {
+  if(Serial.available()){
+    fromPC[idxPC]= Serial.read();
+    Serial1.write(fromPC[idxPC]);
+    idxPC++;
+    idxPC %= 16;
+    }
+  if(Serial1.available()){
+    fromGNSS[idxGNSS]= Serial1.read();
+    Serial.write(fromGNSS[idxGNSS]);
+    idxGNSS++;
+    idxGNSS %= 16;
+    }
+}