refactor: IWDG driver and EM trigger (#3846)

radio/src/pulses/multi.cpp

@@ -25,6 +25,7 @@
 #include "io/multi_protolist.h"
 #include "telemetry/multi.h"
 #include "mixer_scheduler.h"
+#include "hal/abnormal_reboot.h"
 
 // for the  MULTI protocol definition
 // see https://github.com/pascallanger/DIY-Multiprotocol-TX-Module
@@ -240,8 +241,10 @@ static void* multiInit(uint8_t module)
   getMultiModuleStatus(module).flags = 0;
 
 #if defined(MULTI_PROTOLIST)
-  TRACE("enablePulsesInternalModule(): trigger scan");
-  MultiRfProtocols::instance(module)->triggerScan();
+  if (!UNEXPECTED_SHUTDOWN()) {
+    TRACE("enablePulsesInternalModule(): trigger scan");
+    MultiRfProtocols::instance(module)->triggerScan();
+  }
 #endif
 
   return mod_st;