[sky9x + gruvin9x] Remanent timers

[sky9x] Timer since last charge
[sky9x] Massstorage (not working at this moment)
[sky9x] Debug Thread
[stock] Flash saving

src/main_views.cpp

@@ -72,6 +72,8 @@ void doMainScreenGrphics()
   }
 }
 
+extern char usbState;
+
 void menuMainView(uint8_t event)
 {
   uint8_t view = g_eeGeneral.view;
@@ -208,6 +210,10 @@ void menuMainView(uint8_t event)
     if (unexpectedShutdown) {
       lcd_putcAtt(20*FW-3, 0*FH, '!', INVERS);
     }
+#if defined(PCBARM)
+    if (usbState >= '0')
+      lcd_putcAtt(20*FW-3, 0*FH, usbState, INVERS);
+#endif
 
     if (g_model.timers[0].mode) {
       uint8_t att = DBLSIZE | (s_timerState[0]==TMR_BEEPING ? BLINK|INVERS : 0);