diff --git a/src/main/drivers/accgyro_mma845x.c b/src/main/drivers/accgyro_mma845x.c
index 96fed71c3b..d61e4b666c 100644
--- a/src/main/drivers/accgyro_mma845x.c
+++ b/src/main/drivers/accgyro_mma845x.c
@@ -83,12 +83,10 @@ static uint8_t device_id;
 
 static inline void mma8451ConfigureInterrupt(void)
 {
-#ifdef NAZE
-    // PA5 - ACC_INT2 output on NAZE rev3/4 hardware
-    // NAZE rev.5 hardware has PA5 (ADC1_IN5) on breakout pad on bottom of board
-    // OLIMEXINO - The PA5 pin is wired up to LED1, if you need to use an mma8452 on an Olimexino use a different pin and provide support in code.
-    IOInit(IOGetByTag(IO_TAG(PA5)), OWNER_MPU_EXTI, 0);
-    IOConfigGPIO(IOGetByTag(IO_TAG(PA5)), IOCFG_IN_FLOATING);   // TODO - maybe pullup / pulldown ?
+#ifdef MMA8451_INT_PIN
+    IOInit(IOGetByTag(IO_TAG(MMA8451_INT_PIN)), OWNER_MPU_EXTI, 0);
+    // TODO - maybe pullup / pulldown ?
+    IOConfigGPIO(IOGetByTag(IO_TAG(MMA8451_INT_PIN)), IOCFG_IN_FLOATING);   
 #endif
 
     i2cWrite(MPU_I2C_INSTANCE, MMA8452_ADDRESS, MMA8452_CTRL_REG3, MMA8452_CTRL_REG3_IPOL); // Interrupt polarity (active HIGH)
diff --git a/src/main/drivers/compass_hmc5883l.c b/src/main/drivers/compass_hmc5883l.c
index ff0cd12d22..cfb160f031 100644
--- a/src/main/drivers/compass_hmc5883l.c
+++ b/src/main/drivers/compass_hmc5883l.c
@@ -119,11 +119,9 @@
 
 static float magGain[3] = { 1.0f, 1.0f, 1.0f };
 
-static const hmc5883Config_t *hmc5883Config = NULL;
-
 #ifdef USE_MAG_DATA_READY_SIGNAL
 
-static IO_t intIO;
+static IO_t hmc5883InterruptIO;
 static extiCallbackRec_t hmc5883_extiCallbackRec;
 
 static void hmc5883_extiHandler(extiCallbackRec_t* cb)
@@ -150,20 +148,19 @@ static void hmc5883lConfigureDataReadyInterruptHandling(void)
 {
 #ifdef USE_MAG_DATA_READY_SIGNAL
 
-    if (!(hmc5883Config->intTag)) {
+    if (!(hmc5883InterruptIO)) {
         return;
     }
-    intIO = IOGetByTag(hmc5883Config->intTag);
 #ifdef ENSURE_MAG_DATA_READY_IS_HIGH
-    uint8_t status = IORead(intIO);
+    uint8_t status = IORead(hmc5883InterruptIO);
     if (!status) {
         return;
     }
 #endif
 
     EXTIHandlerInit(&hmc5883_extiCallbackRec, hmc5883_extiHandler);
-    EXTIConfig(intIO, &hmc5883_extiCallbackRec, NVIC_PRIO_MAG_INT_EXTI, EXTI_Trigger_Rising);
-    EXTIEnable(intIO, true);
+    EXTIConfig(hmc5883InterruptIO, &hmc5883_extiCallbackRec, NVIC_PRIO_MAG_INT_EXTI, EXTI_Trigger_Rising);
+    EXTIEnable(hmc5883InterruptIO, true);
 #endif
 }
 
@@ -257,9 +254,13 @@ static bool hmc5883lInit(void)
     return true;
 }
 
-bool hmc5883lDetect(magDev_t* mag, const hmc5883Config_t *hmc5883ConfigToUse)
+bool hmc5883lDetect(magDev_t* mag, ioTag_t interruptTag)
 {
-    hmc5883Config = hmc5883ConfigToUse;
+#ifdef USE_MAG_DATA_READY_SIGNAL
+    hmc5883InterruptIO = IOGetByTag(interruptTag);
+#else
+    UNUSED(interruptTag);
+#endif
 
     uint8_t sig = 0;
     bool ack = i2cRead(MAG_I2C_INSTANCE, MAG_ADDRESS, 0x0A, 1, &sig);
diff --git a/src/main/drivers/compass_hmc5883l.h b/src/main/drivers/compass_hmc5883l.h
index 9028143afc..0be30a9dc0 100644
--- a/src/main/drivers/compass_hmc5883l.h
+++ b/src/main/drivers/compass_hmc5883l.h
@@ -19,8 +19,4 @@
 
 #include "io_types.h"
 
-typedef struct hmc5883Config_s {
-    ioTag_t intTag;
-} hmc5883Config_t;
-
-bool hmc5883lDetect(magDev_t* mag, const hmc5883Config_t *hmc5883ConfigToUse);
+bool hmc5883lDetect(magDev_t* mag, ioTag_t interruptTag);
diff --git a/src/main/drivers/vtx_rtc6705.c b/src/main/drivers/vtx_rtc6705.c
index 36e6be4d54..59aa7c2f7d 100644
--- a/src/main/drivers/vtx_rtc6705.c
+++ b/src/main/drivers/vtx_rtc6705.c
@@ -87,7 +87,7 @@
 #define DISABLE_RTC6705 GPIO_SetBits(RTC6705_CS_GPIO,   RTC6705_CS_PIN)
 #define ENABLE_RTC6705  GPIO_ResetBits(RTC6705_CS_GPIO, RTC6705_CS_PIN)
 
-#if defined(SPRACINGF3NEO)
+#ifdef RTC6705_POWER_PIN
 static IO_t vtxPowerPin        = IO_NONE;
 #endif
 
diff --git a/src/main/fc/config.c b/src/main/fc/config.c
index 3b0d7485b9..4068606c86 100755
--- a/src/main/fc/config.c
+++ b/src/main/fc/config.c
@@ -117,6 +117,16 @@ static void resetAccelerometerTrims(flightDynamicsTrims_t *accelerometerTrims)
     accelerometerTrims->values.yaw = 0;
 }
 
+static void resetCompassConfig(compassConfig_t* compassConfig)
+{
+    compassConfig->mag_align = ALIGN_DEFAULT;
+#ifdef MAG_INT_EXTI
+    compassConfig->interruptTag = IO_TAG(MAG_INT_EXTI);
+#else
+    compassConfig->interruptTag = IO_TAG_NONE;
+#endif
+}
+
 static void resetControlRateConfig(controlRateConfig_t *controlRateConfig)
 {
     controlRateConfig->rcRate8 = 100;
@@ -642,7 +652,8 @@ void createDefaultConfig(master_t *config)
 
     config->gyroConfig.gyro_align = ALIGN_DEFAULT;
     config->accelerometerConfig.acc_align = ALIGN_DEFAULT;
-    config->compassConfig.mag_align = ALIGN_DEFAULT;
+    
+    resetCompassConfig(&config->compassConfig);
 
     config->boardAlignment.rollDegrees = 0;
     config->boardAlignment.pitchDegrees = 0;
@@ -954,12 +965,6 @@ void validateAndFixConfig(void)
             featureClear(FEATURE_CURRENT_METER);
         }
 #endif
-
-#if defined(STM32F10X) || defined(CHEBUZZ) || defined(STM32F3DISCOVERY)
-        // led strip needs the same ports
-        featureClear(FEATURE_LED_STRIP);
-#endif
-
         // software serial needs free PWM ports
         featureClear(FEATURE_SOFTSERIAL);
     }
@@ -979,42 +984,6 @@ void validateAndFixConfig(void)
     }
 #endif
 
-#if defined(NAZE) && defined(SONAR)
-    if (featureConfigured(FEATURE_RX_PARALLEL_PWM) && featureConfigured(FEATURE_SONAR) && featureConfigured(FEATURE_CURRENT_METER) && batteryConfig()->currentMeterType == CURRENT_SENSOR_ADC) {
-        featureClear(FEATURE_CURRENT_METER);
-    }
-#endif
-
-#if defined(OLIMEXINO) && defined(SONAR)
-    if (feature(FEATURE_SONAR) && feature(FEATURE_CURRENT_METER) && batteryConfig()->currentMeterType == CURRENT_SENSOR_ADC) {
-        featureClear(FEATURE_CURRENT_METER);
-    }
-#endif
-
-#if defined(CC3D) && defined(DISPLAY) && defined(USE_UART3)
-    if (doesConfigurationUsePort(SERIAL_PORT_USART3) && feature(FEATURE_DASHBOARD)) {
-        featureClear(FEATURE_DASHBOARD);
-    }
-#endif
-
-#if defined(CC3D) && defined(SONAR) && defined(USE_SOFTSERIAL1) && defined(RSSI_ADC_GPIO)
-    // shared pin
-    if ((featureConfigured(FEATURE_SONAR) + featureConfigured(FEATURE_SOFTSERIAL) + featureConfigured(FEATURE_RSSI_ADC)) > 1) {
-        featureClear(FEATURE_SONAR);
-        featureClear(FEATURE_SOFTSERIAL);
-        featureClear(FEATURE_RSSI_ADC);
-    }
-#endif
-
-#if defined(COLIBRI_RACE)
-    serialConfig()->portConfigs[0].functionMask = FUNCTION_MSP;
-    if (featureConfigured(FEATURE_RX_PARALLEL_PWM) || featureConfigured(FEATURE_RX_MSP)) {
-        featureClear(FEATURE_RX_PARALLEL_PWM);
-        featureClear(FEATURE_RX_MSP);
-        featureSet(FEATURE_RX_PPM);
-    }
-#endif
-
     useRxConfig(&masterConfig.rxConfig);
 
     serialConfig_t *serialConfig = &masterConfig.serialConfig;
diff --git a/src/main/sensors/acceleration.c b/src/main/sensors/acceleration.c
index f9af837dc8..c664aa2b5f 100644
--- a/src/main/sensors/acceleration.c
+++ b/src/main/sensors/acceleration.c
@@ -98,11 +98,7 @@ retry:
 #ifdef USE_ACC_ADXL345
         acc_params.useFifo = false;
         acc_params.dataRate = 800; // unused currently
-#ifdef NAZE
-        if (hardwareRevision < NAZE32_REV5 && adxl345Detect(&acc_params, dev)) {
-#else
         if (adxl345Detect(&acc_params, dev)) {
-#endif
 #ifdef ACC_ADXL345_ALIGN
             dev->accAlign = ACC_ADXL345_ALIGN;
 #endif
@@ -135,12 +131,7 @@ retry:
         ; // fallthrough
     case ACC_MMA8452: // MMA8452
 #ifdef USE_ACC_MMA8452
-#ifdef NAZE
-        // Not supported with this frequency
-        if (hardwareRevision < NAZE32_REV5 && mma8452Detect(dev)) {
-#else
         if (mma8452Detect(dev)) {
-#endif
 #ifdef ACC_MMA8452_ALIGN
             dev->accAlign = ACC_MMA8452_ALIGN;
 #endif
diff --git a/src/main/sensors/barometer.c b/src/main/sensors/barometer.c
index 4b25477dc5..d5a130df4e 100644
--- a/src/main/sensors/barometer.c
+++ b/src/main/sensors/barometer.c
@@ -71,12 +71,6 @@ bool baroDetect(baroDev_t *dev, baroSensor_e baroHardwareToUse)
     bmp085Config = &defaultBMP085Config;
 #endif
 
-#ifdef NAZE
-    if (hardwareRevision == NAZE32) {
-        bmp085Disable(bmp085Config);
-    }
-#endif
-
 #endif
 
     switch (baroHardware) {
diff --git a/src/main/sensors/compass.c b/src/main/sensors/compass.c
index 2c012a944e..33393463cc 100644
--- a/src/main/sensors/compass.c
+++ b/src/main/sensors/compass.c
@@ -56,33 +56,6 @@ bool compassDetect(magDev_t *dev, magSensor_e magHardwareToUse)
 {
     magSensor_e magHardware;
 
-#ifdef USE_MAG_HMC5883
-    const hmc5883Config_t *hmc5883Config = 0;
-
-#ifdef NAZE // TODO remove this target specific define
-    static const hmc5883Config_t nazeHmc5883Config_v1_v4 = {
-            .intTag = IO_TAG(PB12) /* perhaps disabled? */
-    };
-    static const hmc5883Config_t nazeHmc5883Config_v5 = {
-            .intTag = IO_TAG(MAG_INT_EXTI)
-    };
-    if (hardwareRevision < NAZE32_REV5) {
-        hmc5883Config = &nazeHmc5883Config_v1_v4;
-    } else {
-        hmc5883Config = &nazeHmc5883Config_v5;
-    }
-#endif
-
-#ifdef MAG_INT_EXTI
-    static const hmc5883Config_t extiHmc5883Config = {
-        .intTag = IO_TAG(MAG_INT_EXTI)
-    };
-
-    hmc5883Config = &extiHmc5883Config;
-#endif
-
-#endif
-
 retry:
 
     dev->magAlign = ALIGN_DEFAULT;
@@ -93,7 +66,7 @@ retry:
 
     case MAG_HMC5883:
 #ifdef USE_MAG_HMC5883
-        if (hmc5883lDetect(dev, hmc5883Config)) {
+        if (hmc5883lDetect(dev, compassConfig()->interruptTag)) {
 #ifdef MAG_HMC5883_ALIGN
             dev->magAlign = MAG_HMC5883_ALIGN;
 #endif
diff --git a/src/main/sensors/compass.h b/src/main/sensors/compass.h
index 7f4002fc64..6194743330 100644
--- a/src/main/sensors/compass.h
+++ b/src/main/sensors/compass.h
@@ -18,10 +18,11 @@
 #pragma once
 
 #include "config/parameter_group.h"
+
+#include "drivers/io.h"
 #include "drivers/sensor.h"
 #include "sensors/sensors.h"
 
-
 // Type of magnetometer used/detected
 typedef enum {
     MAG_DEFAULT = 0,
@@ -43,6 +44,7 @@ typedef struct compassConfig_s {
                                             // For example, -6deg 37min, = -637 Japan, format is [sign]dddmm (degreesminutes) default is zero.
     sensor_align_e mag_align;               // mag alignment
     uint8_t mag_hardware;                   // Which mag hardware to use on boards with more than one device
+    ioTag_t interruptTag;
     flightDynamicsTrims_t magZero;
 } compassConfig_t;
 
diff --git a/src/main/target/CC3D/config.c b/src/main/target/CC3D/config.c
new file mode 100644
index 0000000000..5e35e33729
--- /dev/null
+++ b/src/main/target/CC3D/config.c
@@ -0,0 +1,42 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Cleanflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <platform.h>
+
+#include "config/config_master.h"
+#include "config/feature.h"
+#include "sensors/battery.h"
+
+void targetValidateConfiguration(master_t *config)
+{
+	UNUSED(config);
+
+#if defined(DISPLAY) && defined(USE_UART3)
+    if (doesConfigurationUsePort(SERIAL_PORT_USART3) && feature(FEATURE_DASHBOARD)) {
+        featureClear(FEATURE_DASHBOARD);
+    }
+#endif
+
+#if defined(SONAR) && defined(USE_SOFTSERIAL1) && defined(RSSI_ADC_GPIO)
+    // shared pin
+    if ((featureConfigured(FEATURE_SONAR) + featureConfigured(FEATURE_SOFTSERIAL) + featureConfigured(FEATURE_RSSI_ADC)) > 1) {
+        featureClear(FEATURE_SONAR);
+        featureClear(FEATURE_SOFTSERIAL);
+        featureClear(FEATURE_RSSI_ADC);
+    }
+#endif
+}
\ No newline at end of file
diff --git a/src/main/target/CC3D/target.h b/src/main/target/CC3D/target.h
index 9871d0cf46..2eea75aafe 100644
--- a/src/main/target/CC3D/target.h
+++ b/src/main/target/CC3D/target.h
@@ -16,6 +16,7 @@
  */
 
 #define TARGET_BOARD_IDENTIFIER "CC3D" // CopterControl 3D
+#define TARGET_VALIDATECONFIG
 
 #define LED0                    PB3
 
diff --git a/src/main/target/CHEBUZZF3/config.c b/src/main/target/CHEBUZZF3/config.c
new file mode 100644
index 0000000000..a5b03052f3
--- /dev/null
+++ b/src/main/target/CHEBUZZF3/config.c
@@ -0,0 +1,31 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Cleanflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <platform.h>
+
+#include "config/config_master.h"
+#include "config/feature.h"
+
+void targetValidateConfiguration(master_t *config)
+{
+	UNUSED(config);
+
+    if (featureConfigured(FEATURE_RX_PARALLEL_PWM)) {
+        // led strip needs the same ports
+        featureClear(FEATURE_LED_STRIP);
+    }
+}
diff --git a/src/main/target/COLIBRI_RACE/config.c b/src/main/target/COLIBRI_RACE/config.c
index 826bd10adf..389d5f4edb 100644
--- a/src/main/target/COLIBRI_RACE/config.c
+++ b/src/main/target/COLIBRI_RACE/config.c
@@ -21,6 +21,7 @@
 #include <platform.h>
 
 #include "common/maths.h"
+#include "common/utils.h"
 
 #include "config/config_master.h"
 #include "config/feature.h"
@@ -99,3 +100,15 @@ void targetConfiguration(master_t *config)
     targetApplyDefaultLedStripConfig(config->ledStripConfig.ledConfigs);
 
 }
+
+void targetValidateConfiguration(master_t *config)
+{
+    UNUSED(config);
+
+    serialConfig()->portConfigs[0].functionMask = FUNCTION_MSP;
+    if (featureConfigured(FEATURE_RX_PARALLEL_PWM) || featureConfigured(FEATURE_RX_MSP)) {
+        featureClear(FEATURE_RX_PARALLEL_PWM);
+        featureClear(FEATURE_RX_MSP);
+        featureSet(FEATURE_RX_PPM);
+    }
+}
\ No newline at end of file
diff --git a/src/main/target/COLIBRI_RACE/i2c_bst.c b/src/main/target/COLIBRI_RACE/i2c_bst.c
index 3d84971bc5..b6070664c2 100644
--- a/src/main/target/COLIBRI_RACE/i2c_bst.c
+++ b/src/main/target/COLIBRI_RACE/i2c_bst.c
@@ -70,10 +70,6 @@
 #include "config/config_master.h"
 #include "config/feature.h"
 
-#ifdef NAZE
-#include "hardware_revision.h"
-#endif
-
 #include "bus_bst.h"
 #include "i2c_bst.h"
 
diff --git a/src/main/target/COLIBRI_RACE/target.h b/src/main/target/COLIBRI_RACE/target.h
index 7fe59629f3..f3bcaa73a3 100755
--- a/src/main/target/COLIBRI_RACE/target.h
+++ b/src/main/target/COLIBRI_RACE/target.h
@@ -21,6 +21,7 @@
 #define BST_DEVICE_NAME         "COLIBRI RACE"
 #define BST_DEVICE_NAME_LENGTH  12
 #define TARGET_CONFIG
+#define TARGET_VALIDATECONFIG
 
 #define CONFIG_FASTLOOP_PREFERRED_ACC ACC_DEFAULT
 
diff --git a/src/main/target/NAZE/config.c b/src/main/target/NAZE/config.c
index 3319fa9cf1..a3e1220136 100755
--- a/src/main/target/NAZE/config.c
+++ b/src/main/target/NAZE/config.c
@@ -96,5 +96,25 @@ void targetConfiguration(master_t *config)
         config->flashConfig.csTag = IO_TAG_NONE;
     }
 #endif
+
+#ifdef MAG_INT_EXTI
+    if (hardwareRevision < NAZE32_REV5) {
+        config->compassConfig.interruptTag = IO_TAG(PB12);
+    }
+#endif
 }
 
+void targetValidateConfiguration(master_t *config)
+{
+    UNUSED(config);
+
+#if defined(SONAR)
+    if (featureConfigured(FEATURE_RX_PARALLEL_PWM) && featureConfigured(FEATURE_SONAR) && featureConfigured(FEATURE_CURRENT_METER) && batteryConfig()->currentMeterType == CURRENT_SENSOR_ADC) {
+        featureClear(FEATURE_CURRENT_METER);
+    }
+#endif
+
+    if (hardwareRevision < NAZE32_REV5 && config->accelerometerConfig.acc_hardware == ACC_ADXL345) {
+        config->accelerometerConfig.acc_hardware = ACC_NONE;
+    }  
+}
\ No newline at end of file
diff --git a/src/main/target/NAZE/target.h b/src/main/target/NAZE/target.h
index 315faf2fe5..fae72941b0 100644
--- a/src/main/target/NAZE/target.h
+++ b/src/main/target/NAZE/target.h
@@ -18,6 +18,7 @@
 #pragma once
 
 #define TARGET_CONFIG
+#define TARGET_VALIDATECONFIG
 #define USE_HARDWARE_REVISION_DETECTION
 #define TARGET_BUS_INIT
 
@@ -49,16 +50,10 @@
 #define USE_EXTI
 #define MAG_INT_EXTI            PC14
 #define MPU_INT_EXTI            PC13
-//#define DEBUG_MPU_DATA_READY_INTERRUPT
-#define USE_MPU_DATA_READY_SIGNAL
-//#define DEBUG_MAG_DATA_READY_INTERRUPT
-#define USE_MAG_DATA_READY_SIGNAL
+#define MMA8451_INT_PIN			PA5
 
-// SPI2
-// PB15 28 SPI2_MOSI
-// PB14 27 SPI2_MISO
-// PB13 26 SPI2_SCK
-// PB12 25 SPI2_NSS
+#define USE_MPU_DATA_READY_SIGNAL
+#define USE_MAG_DATA_READY_SIGNAL
 
 #define USE_SPI
 #define USE_SPI_DEVICE_2
diff --git a/src/main/target/STM32F3DISCOVERY/config.c b/src/main/target/STM32F3DISCOVERY/config.c
new file mode 100644
index 0000000000..61e9bbcab1
--- /dev/null
+++ b/src/main/target/STM32F3DISCOVERY/config.c
@@ -0,0 +1,32 @@
+/*
+ * This file is part of Cleanflight.
+ *
+ * Cleanflight is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Cleanflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <platform.h>
+
+#include "config/config_master.h"
+#include "config/feature.h"
+
+void targetValidateConfiguration(master_t *config)
+{
+	UNUSED(config);
+
+    if (featureConfigured(FEATURE_RX_PARALLEL_PWM)) {
+        // led strip needs the same ports
+        featureClear(FEATURE_LED_STRIP);
+    }
+}
\ No newline at end of file