diff --git a/libraries/AP_HAL/system.cpp b/libraries/AP_HAL/system.cpp
index bb94ffedb3..1cdbd80c32 100644
--- a/libraries/AP_HAL/system.cpp
+++ b/libraries/AP_HAL/system.cpp
@@ -5,6 +5,11 @@ uint16_t WEAK AP_HAL::millis16()
     return millis() & 0xFFFF;
 }
 
+uint16_t WEAK AP_HAL::micros16()
+{
+    return micros() & 0xFFFF;
+}
+
 void WEAK AP_HAL::dump_stack_trace()
 {
     // stack dump not available on this platform
diff --git a/libraries/AP_HAL/system.h b/libraries/AP_HAL/system.h
index e230d7c02d..c93a7f9f0b 100644
--- a/libraries/AP_HAL/system.h
+++ b/libraries/AP_HAL/system.h
@@ -12,6 +12,7 @@ void init();
 
 void panic(const char *errormsg, ...) FMT_PRINTF(1, 2) NORETURN;
 
+uint16_t micros16();
 uint32_t micros();
 uint32_t millis();
 uint16_t millis16();