diff --git a/firmware/config/stm32f0egt/mpu_util.h b/firmware/config/stm32f0egt/mpu_util.h
deleted file mode 100644
index 878eb44b0e..0000000000
--- a/firmware/config/stm32f0egt/mpu_util.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-
-#define baseHardwareInit() {}
\ No newline at end of file
diff --git a/firmware/emulation/hw_layer/poten.h b/firmware/emulation/hw_layer/poten.h
index 5979cd4624..fbf0874367 100644
--- a/firmware/emulation/hw_layer/poten.h
+++ b/firmware/emulation/hw_layer/poten.h
@@ -10,6 +10,9 @@
 #define POTEN_H_
 
 #include "main.h"
+
+#if HAL_USE_SPI || defined(__DOXYGEN__)
+
 #include "engine_configuration.h"
 
 typedef struct {
@@ -21,4 +24,6 @@ typedef struct {
 void initPotentiometers(board_configuration_s *boardConfiguration);
 void setPotResistance(Mcp42010Driver *driver, int channel, int resistance);
 
+#endif
+
 #endif /* POTEN_H_ */
diff --git a/firmware/emulation/wave_analyzer.h b/firmware/emulation/wave_analyzer.h
index 27cf7fcc02..3c3880676d 100644
--- a/firmware/emulation/wave_analyzer.h
+++ b/firmware/emulation/wave_analyzer.h
@@ -10,6 +10,9 @@
 #define WAVE_ANALYZER_H_
 
 #include "main.h"
+
+#if EFI_WAVE_ANALYZER || defined(__DOXYGEN__)
+
 #include "datalogging.h"
 
 #include "wave_analyzer_hw.h"
@@ -57,5 +60,7 @@ public:
 void initWaveAnalyzer(void);
 void printWave(Logging *logging);
 
+#endif
+
 #endif /* WAVE_ANALYZER_H_ */
 
diff --git a/firmware/hw_layer/AdcConfiguration.h b/firmware/hw_layer/AdcConfiguration.h
index b0a1848b35..bfdedeac1e 100644
--- a/firmware/hw_layer/AdcConfiguration.h
+++ b/firmware/hw_layer/AdcConfiguration.h
@@ -7,6 +7,8 @@
 #ifndef ADCCONFIGURATION_H_
 #define ADCCONFIGURATION_H_
 
+#if HAL_USE_ADC || defined(__DOXYGEN__)
+
 class AdcConfiguration {
 public:
 	AdcConfiguration(ADCConversionGroup* hwConfig);
@@ -31,5 +33,6 @@ private:
 	adc_channel_e hardwareIndexByIndernalAdcIndex[20];
 };
 
+#endif /* HAL_USE_ADC */
 
 #endif /* ADCCONFIGURATION_H_ */
diff --git a/firmware/hw_layer/HIP9011.cpp b/firmware/hw_layer/HIP9011.cpp
index 0671edaf71..bc7d880fc0 100644
--- a/firmware/hw_layer/HIP9011.cpp
+++ b/firmware/hw_layer/HIP9011.cpp
@@ -28,7 +28,7 @@
 #include "rpm_calculator.h"
 #include "trigger_central.h"
 
-#if EFI_HIP_9011
+#if EFI_HIP_9011 || defined(__DOXYGEN__)
 
 extern pin_output_mode_e DEFAULT_OUTPUT;
 
diff --git a/firmware/hw_layer/adc_inputs.cpp b/firmware/hw_layer/adc_inputs.cpp
index a77cb6e8e6..aed1853cc5 100644
--- a/firmware/hw_layer/adc_inputs.cpp
+++ b/firmware/hw_layer/adc_inputs.cpp
@@ -7,6 +7,9 @@
  */
 
 #include "main.h"
+
+#if HAL_USE_ADC || defined(__DOXYGEN__)
+
 #include "engine_configuration.h"
 #include "adc_inputs.h"
 #include "AdcConfiguration.h"
@@ -546,3 +549,4 @@ void pokeAdcInputs() {
 	printFullAdcReport();
 }
 
+#endif /* HAL_USE_ADC */
diff --git a/firmware/hw_layer/adc_inputs.h b/firmware/hw_layer/adc_inputs.h
index be52af29b0..9b6e3244c1 100644
--- a/firmware/hw_layer/adc_inputs.h
+++ b/firmware/hw_layer/adc_inputs.h
@@ -10,6 +10,9 @@
 #define ADC_INPUTS_H_
 
 #include "main.h"
+
+#if HAL_USE_ADC || defined(__DOXYGEN__)
+
 #include "adc_math.h"
 
 const char * getAdcMode(adc_channel_e hwChannel);
@@ -55,4 +58,6 @@ typedef struct {
 // todo: migrate to adcToVoltageInputDividerCoefficient
 #define adcToVoltsDivided(adc) (adcToVolts(adc) * engineConfiguration->analogInputDividerCoefficient)
 
+#endif /* HAL_USE_ADC */
+
 #endif /* ADC_INPUTS_H_ */
diff --git a/firmware/hw_layer/board_test.cpp b/firmware/hw_layer/board_test.cpp
index 3cc0d7f3fe..a719bbac13 100644
--- a/firmware/hw_layer/board_test.cpp
+++ b/firmware/hw_layer/board_test.cpp
@@ -32,13 +32,15 @@
 static volatile int stepCoutner = 0;
 static volatile brain_pin_e currentPin = GPIO_UNASSIGNED;
 
-extern AdcConfiguration slowAdc;
-extern AdcConfiguration fastAdc;
-
 static bool isTimeForNextStep(int copy) {
 	return copy != stepCoutner;
 }
 
+
+#if HAL_USE_ADC || defined(__DOXYGEN__)
+extern AdcConfiguration slowAdc;
+extern AdcConfiguration fastAdc;
+
 static void processAdcPin(AdcConfiguration *adc, int index, const char *prefix) {
 	adc_channel_e hwIndex = adc->getAdcHardwareIndexByInternalIndex(index);
 	GPIO_TypeDef* port = getAdcChannelPort(hwIndex);
@@ -60,7 +62,7 @@ static void processAdcPin(AdcConfiguration *adc, int index, const char *prefix)
 
 	}
 }
-
+#endif
 static volatile int currentIndex = 0;
 
 static void waitForKey(void) {
@@ -134,7 +136,9 @@ bool isBoardTestMode(void) {
 void printBoardTestState(void) {
 	print("Current index=%d\r\n", currentIndex);
 	print("'n' for next step and 'set X' to return to step X\r\n");
+#if HAL_USE_ADC || defined(__DOXYGEN__)
 	print("ADC count: slow %d/fast %d\r\n", slowAdc.size(), fastAdc.size());
+#endif
 
 	if (currentPin != GPIO_UNASSIGNED) {
 		print("Blinking %s\r\n", hwPortname(currentPin));
@@ -150,11 +154,13 @@ void initBoardTest(void) {
 
 	// this code is ugly as hell, I had no time to think. Todo: refactor
 
+#if HAL_USE_ADC || defined(__DOXYGEN__)
 	processAdcPin(&fastAdc, 0, "fast");
 	while (currentIndex < slowAdc.size()) {
 		processAdcPin(&slowAdc, currentIndex, "slow");
 		currentIndex++;
 	}
+#endif
 
 	currentIndex = 0;
 
diff --git a/firmware/hw_layer/io_pins.c b/firmware/hw_layer/io_pins.c
index ceceaa464d..bf7fbf8fb9 100644
--- a/firmware/hw_layer/io_pins.c
+++ b/firmware/hw_layer/io_pins.c
@@ -28,7 +28,11 @@ static Logging logger;
 extern pin_output_mode_e *pinDefaultState[IO_PIN_COUNT];
 extern OutputPin outputs[IO_PIN_COUNT];
 
+#if defined(STM32F4XX)
 static GPIO_TypeDef *PORTS[] = { GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH };
+#else
+static GPIO_TypeDef *PORTS[] = { GPIOA, GPIOB, GPIOC, GPIOD, GPIOF};
+#endif
 
 pin_output_mode_e DEFAULT_OUTPUT = OM_DEFAULT;
 
@@ -111,8 +115,11 @@ static void getPinValue(const char *name) {
 void initOutputPins(void) {
 	initLogging(&logger, "io_pins");
 
+#if EFI_WARNING_LED
 	outputPinRegister("warning", LED_WARNING, LED_WARNING_PORT, LED_WARNING_PIN);
 	outputPinRegister("is running status", LED_RUNNING, LED_RUNNING_STATUS_PORT, LED_RUNNING_STATUS_PIN);
+#endif /* EFI_WARNING_LED */
+
 	outputPinRegister("communication status 1", LED_COMMUNICATION_1, LED_COMMUNICATION_PORT, LED_COMMUNICATION_PIN);
 
 	/**
@@ -132,7 +139,9 @@ void initOutputPins(void) {
 //	outputPinRegister("spi CS2", SPI_CS_2, SPI_CS2_PORT, SPI_CS2_PIN);
 //	outputPinRegister("spi CS3", SPI_CS_3, SPI_CS3_PORT, SPI_CS3_PIN);
 //	outputPinRegister("spi CS4", SPI_CS_4, SPI_CS4_PORT, SPI_CS4_PIN);
+#if HAL_USE_SPI || defined(__DOXYGEN__)
 	outputPinRegister("spi CS5", SPI_CS_SD_MODULE, SPI_SD_MODULE_PORT, SPI_SD_MODULE_PIN);
+#endif
 
 	// todo: should we move this code closer to the fuel pump logic?
 	outputPinRegisterExt2("fuel pump relay", FUEL_PUMP_RELAY, boardConfiguration->fuelPumpPin, &DEFAULT_OUTPUT);
diff --git a/firmware/hw_layer/mcp3208.c b/firmware/hw_layer/mcp3208.c
index f71fecc497..a0f469e89d 100644
--- a/firmware/hw_layer/mcp3208.c
+++ b/firmware/hw_layer/mcp3208.c
@@ -6,11 +6,10 @@
  * @author Andrey Belomutskiy, (c) 2012-2014
  */
 
-#include <ch.h>
-#include <hal.h>
-
-#include "mcp3208.h"
 #include "main.h"
+
+#if EFI_MCP_3208 || defined(__DOXYGEN__)
+#include "mcp3208.h"
 #include "pin_repository.h"
 
 McpAdcState *hack;
@@ -138,3 +137,4 @@ void init_adc_mcp3208(McpAdcState *state, SPIDriver *driver) {
 	spiStart(driver, &spicfg);
 }
 
+#endif /* EFI_MCP_3208 */
diff --git a/firmware/hw_layer/mcp3208.h b/firmware/hw_layer/mcp3208.h
index ed0b68a0c9..d132a58cac 100644
--- a/firmware/hw_layer/mcp3208.h
+++ b/firmware/hw_layer/mcp3208.h
@@ -16,6 +16,10 @@
 #ifndef MCP3208_H_
 #define MCP3208_H_
 
+#include "main.h"
+
+#if EFI_MCP_3208 || defined(__DOXYGEN__)
+
 #define MCP3208_CS_PORT GPIOD
 #define MCP3208_CS_PIN 11
 
@@ -37,4 +41,6 @@ void adc_in_out(McpAdcState *state);
 
 int getMcp3208adc(int channel);
 
+#endif /* EFI_MCP_3208 */
+
 #endif /* MCP3208_H_ */
diff --git a/firmware/hw_layer/microsecond_timer.c b/firmware/hw_layer/microsecond_timer.c
index 0d45fa8cdd..d9d508b7f6 100644
--- a/firmware/hw_layer/microsecond_timer.c
+++ b/firmware/hw_layer/microsecond_timer.c
@@ -18,7 +18,7 @@
 
 // https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fInterrupt%20on%20CEN%20bit%20setting%20in%20TIM7&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=474
 
-#if EFI_PROD_CODE
+#if (EFI_PROD_CODE && HAL_USE_GPT) || defined(__DOXYGEN__)
 
 #define GPTDEVICE GPTD5
 
diff --git a/firmware/hw_layer/pin_repository.c b/firmware/hw_layer/pin_repository.c
index 41a265c70f..c01a325ba2 100644
--- a/firmware/hw_layer/pin_repository.c
+++ b/firmware/hw_layer/pin_repository.c
@@ -35,12 +35,14 @@ char *portname(GPIO_TypeDef* GPIOx) {
 		return "PC";
 	if (GPIOx == GPIOD)
 		return "PD";
+#if defined(STM32F4XX)
 	if (GPIOx == GPIOE)
 		return "PE";
-	if (GPIOx == GPIOF)
-		return "PF";
 	if (GPIOx == GPIOH)
 		return "PH";
+#endif
+	if (GPIOx == GPIOF)
+		return "PF";
 	return "unknown";
 }
 
@@ -53,12 +55,14 @@ static int getPortIndex(GPIO_TypeDef* port) {
 		return 2;
 	if (port == GPIOD)
 		return 3;
+#if defined(STM32F4XX)
 	if (port == GPIOE)
 		return 4;
-	if (port == GPIOF)
-		return 5;
 	if (port == GPIOH)
 		return 6;
+#endif
+	if (port == GPIOF)
+		return 5;
 	firmwareError("portindex");
 	return -1;
 }
diff --git a/firmware/hw_layer/stm32f0/mpu_util.cpp b/firmware/hw_layer/stm32f0/mpu_util.cpp
new file mode 100644
index 0000000000..855361a404
--- /dev/null
+++ b/firmware/hw_layer/stm32f0/mpu_util.cpp
@@ -0,0 +1,14 @@
+/**
+ * @file	mpu_util.cpp
+ *
+ * @date Dec 23, 2014
+ * @author Andrey Belomutskiy, (c) 2012-2014
+ */
+
+#include "main.h"
+
+int getRemainingStack(Thread *otp) {
+	return 9999;
+}
+
+
diff --git a/firmware/hw_layer/stm32f0/mpu_util.h b/firmware/hw_layer/stm32f0/mpu_util.h
new file mode 100644
index 0000000000..452a47c80e
--- /dev/null
+++ b/firmware/hw_layer/stm32f0/mpu_util.h
@@ -0,0 +1,13 @@
+/**
+ * @file	mpu_util.h
+ *
+ * @date Dec 23, 2014
+ * @author Andrey Belomutskiy, (c) 2012-2014
+ */
+#ifndef MPU_UTIL_H_
+#define MPU_UTIL_H_
+
+#define baseHardwareInit() {}
+
+
+#endif /* MPU_UTIL_H_ */
diff --git a/firmware/hw_layer/wave_analyzer_hw.c b/firmware/hw_layer/wave_analyzer_hw.c
index af7761567c..6654ec0d2e 100644
--- a/firmware/hw_layer/wave_analyzer_hw.c
+++ b/firmware/hw_layer/wave_analyzer_hw.c
@@ -7,6 +7,9 @@
  */
 
 #include "wave_analyzer_hw.h"
+
+#if EFI_WAVE_ANALYZER || defined(__DOXYGEN__)
+
 #include "eficonsole.h"
 #include "pin_repository.h"
 
@@ -169,3 +172,5 @@ void setWaveReaderMode(WaveReaderHw *hw, bool mode) {
 	}
 	hw->started = TRUE;
 }
+
+#endif
diff --git a/firmware/hw_layer/wave_analyzer_hw.h b/firmware/hw_layer/wave_analyzer_hw.h
index a39d28d3bf..92e2c0cadb 100644
--- a/firmware/hw_layer/wave_analyzer_hw.h
+++ b/firmware/hw_layer/wave_analyzer_hw.h
@@ -9,6 +9,9 @@
 #define WAVE_ANALYZER_HW_H_
 
 #include "main.h"
+
+#if HAL_USE_ICU || defined(__DOXYGEN__)
+
 #include "listener_array.h"
 
 typedef struct {
@@ -36,4 +39,6 @@ ICUDriver * getInputCaptureDriver(brain_pin_e hwPin);
 }
 #endif /* __cplusplus */
 
+#endif
+
 #endif /* WAVE_ANALYZER_HW_H_ */