causeHardFault() function for different ports

firmware/hw_layer/ports/at32/at32_common.cpp

@@ -138,6 +138,13 @@ void baseMCUInit(void) {
     BOR_Set(BOR_Level_1); // one step above default value
 }
 
+void causeHardFault() {
+	// Set the function pointer to an invalid address
+	void (*invalidFunction)() = (void(*)())0xDEADBEEF;
+	// Calling the invalid function will trigger a hard fault
+	invalidFunction();
+}
+
 /* used to detect additional RAM available for LUA
  * TODO: find RAM on AT32
  * TODO: better name */

firmware/hw_layer/ports/cypress/mpu_util.cpp

@@ -24,6 +24,13 @@ extern "C" {
 void baseMCUInit(void) {
 }
 
+void causeHardFault() {
+	// Set the function pointer to an invalid address
+	void (*invalidFunction)() = (void(*)())0xDEADBEEF;
+	// Calling the invalid function will trigger a hard fault
+	invalidFunction();
+}
+
 void _unhandled_exception(void) {
 /*lint -restore*/
 

firmware/hw_layer/ports/kinetis/mpu_util.cpp

@@ -16,6 +16,13 @@
 void baseMCUInit(void) {
 }
 
+void causeHardFault() {
+	// Set the function pointer to an invalid address
+	void (*invalidFunction)() = (void(*)())0xDEADBEEF;
+	// Calling the invalid function will trigger a hard fault
+	invalidFunction();
+}
+
 void _unhandled_exception(void) {
 /*lint -restore*/
 

firmware/hw_layer/ports/mpu_util.h

@@ -12,6 +12,7 @@ void jump_to_bootloader();
 #if EFI_USE_OPENBLT
 void jump_to_openblt();
 #endif
+void causeHardFault();
 bool allowFlashWhileRunning();
 
 bool ramReadProbe(volatile const char *read_address);

firmware/hw_layer/ports/stm32/stm32_common.cpp

@@ -110,6 +110,15 @@ void baseMCUInit(void) {
 	BOR_Set(BOR_Level_1); // one step above default value
 }
 
+void causeHardFault() {
+#if EFI_PROD_CODE
+	// Set the function pointer to an invalid address
+	void (*invalidFunction)() = (void(*)())0xDEADBEEF;
+	// Calling the invalid function will trigger a hard fault
+	invalidFunction();
+#endif  /* EFI_PROD_CODE */
+}
+
 extern uint32_t __main_stack_base__;
 
 typedef struct port_intctx intctx_t;

simulator/simulator/mpu_util.h

@@ -7,3 +7,4 @@ static bool isValidCanRxPin(brain_pin_e) { return true; }
 #endif // HAL_USE_CAN
 
 static bool allowFlashWhileRunning() { return true; }
+static void causeHardFault() { }