diff --git a/firmware/.cproject b/firmware/.cproject
index 99f4a0717d..0ae3f020ff 100644
--- a/firmware/.cproject
+++ b/firmware/.cproject
@@ -181,7 +181,7 @@
 								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.other.1336205150" name="Other linker flags" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.other" value="-Wl,-Map,&quot;rusefi.map&quot; -mcpu=cortex-m4 -mthumb -g3" valueType="string"/>
 								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nostdlibs.2113602694" name="No startup or default libs (-nostdlib)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nostdlibs" value="false" valueType="boolean"/>
 								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.scriptfile.1520845026" name="Script files (-T)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.scriptfile" valueType="stringList">
-									<listOptionValue builtIn="false" value="&quot;${workspace_loc}\\${ProjName}\config\stm32f4ems\STM32F407xG_CCM.ld&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;..\config\stm32f4ems\STM32F407xG_CCM.ld&quot;"/>
 								</option>
 								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nodeflibs.457288864" name="Do not use default libraries (-nodefaultlibs)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nodeflibs" value="false" valueType="boolean"/>
 								<option id="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nostart.1584814043" name="Do not use standard start files (-nostartfiles)" superClass="ilg.gnuarmeclipse.managedbuild.cross.option.cpp.linker.nostart" value="false" valueType="boolean"/>
diff --git a/firmware/controllers/algo/engine.cpp b/firmware/controllers/algo/engine.cpp
index b17b403c9c..05fda36460 100644
--- a/firmware/controllers/algo/engine.cpp
+++ b/firmware/controllers/algo/engine.cpp
@@ -68,6 +68,9 @@ Engine::Engine(persistent_config_s *config) {
 	engineState.iat = engineState.clt = NAN;
 	memset(&ignitionPin, 0, sizeof(ignitionPin));
 
+	knockNow = false;
+	knockEver = false;
+
 	iat.config = NULL;
 	iat.channel = EFI_ADC_NONE;
 
diff --git a/firmware/controllers/algo/engine.h b/firmware/controllers/algo/engine.h
index b8dea7c37b..3c6ef6e34d 100644
--- a/firmware/controllers/algo/engine.h
+++ b/firmware/controllers/algo/engine.h
@@ -151,6 +151,9 @@ public:
 
 	bool_t isRunningPwmTest;
 
+	bool_t knockNow;
+	bool_t knockEver;
+
 	/**
 	 * are we running any kind of functional test? this affect
 	 * some areas
diff --git a/firmware/controllers/trigger/main_trigger_callback.cpp b/firmware/controllers/trigger/main_trigger_callback.cpp
index 9f0df913ce..a43fd6ab40 100644
--- a/firmware/controllers/trigger/main_trigger_callback.cpp
+++ b/firmware/controllers/trigger/main_trigger_callback.cpp
@@ -339,6 +339,14 @@ void mainTriggerCallback(trigger_event_e ckpSignalType, uint32_t eventIndex DECL
 	}
 
 	if (eventIndex == engineConfiguration->ignMathCalculateAtIndex) {
+		if (engineConfiguration->externalKnockSenseAdc != EFI_ADC_NONE) {
+			float externalKnockValue = getAdcValue(engineConfiguration->externalKnockSenseAdc);
+			engine->knockNow = externalKnockValue > 2.5;
+
+
+		}
+
+
 		engine->m.beforeIgnitionMath = GET_TIMESTAMP();
 		ignitionCalc(rpm PASS_ENGINE_PARAMETER);
 		engine->m.ignitionMathTime = GET_TIMESTAMP() - engine->m.beforeIgnitionMath;
diff --git a/firmware/rusefi.cpp b/firmware/rusefi.cpp
index 1c9d66b250..d3aef8bc64 100644
--- a/firmware/rusefi.cpp
+++ b/firmware/rusefi.cpp
@@ -276,5 +276,5 @@ int getRusEfiVersion(void) {
 		return 1; // this is here to make the compiler happy about the unused array
 	if (UNUSED_CCM_SIZE[0] == 0)
 		return 1; // this is here to make the compiler happy about the unused array
-	return 20150315;
+	return 20150316;
 }