PRUSA_SN: Always check available on serialPort 0.

mkbel · Jun 16, 2020 · c777855 · c777855
1 parent 11d9af3
commit c777855
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
@@ -3315,7 +3315,12 @@ static void gcode_PRUSA_SN()
     timeout.start();
 
     while (numbersRead < 19) {
-        while (MSerial.available() > 0) {
+        int available = 0;
+        {
+            SerialPortHelper(0);
+            available = MSerial.available();
+        }
+        if (available > 0) {
             uint8_t serial_char = '?';
             {
                 SerialPortHelper(0);