diff --git a/Makefile b/Makefile
index 38f32aef16..8d26455a63 100644
--- a/Makefile
+++ b/Makefile
@@ -32,7 +32,7 @@ SERIAL_DEVICE	?= /dev/ttyUSB0
 
 FORKNAME			 = cleanflight
 
-VALID_TARGETS	 = NAZE NAZE32PRO OLIMEXINO STM32F3DISCOVERY CHEBUZZF3 CC3D CJMCU
+VALID_TARGETS	 = NAZE NAZE32PRO OLIMEXINO STM32F3DISCOVERY CHEBUZZF3 CC3D CJMCU EUSTM32F103RC
 
 # Working directories
 ROOT		 = $(dir $(lastword $(MAKEFILE_LIST)))
@@ -76,7 +76,7 @@ INCLUDE_DIRS := $(INCLUDE_DIRS) \
 LD_SCRIPT	 = $(ROOT)/stm32_flash_f303.ld
 
 ARCH_FLAGS	 = -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mfpu=fpv4-sp-d16 -fsingle-precision-constant -Wdouble-promotion
-DEVICE_FLAGS = -DSTM32F303xC
+DEVICE_FLAGS = -DSTM32F303xC -DSTM32F303
 TARGET_FLAGS = -D$(TARGET)
 ifeq ($(TARGET),CHEBUZZF3)
 # CHEBUZZ is a VARIANT of STM32F3DISCOVERY
@@ -84,6 +84,31 @@ TARGET_FLAGS := $(TARGET_FLAGS) -DSTM32F3DISCOVERY
 endif
 
 
+else ifeq ($(TARGET),$(filter $(TARGET),EUSTM32F103RC))
+
+
+STDPERIPH_DIR	 = $(ROOT)/lib/main/STM32F10x_StdPeriph_Driver
+
+STDPERIPH_SRC = $(notdir $(wildcard $(STDPERIPH_DIR)/src/*.c))
+
+# Search path and source files for the CMSIS sources
+VPATH		:= $(VPATH):$(CMSIS_DIR)/CM3/CoreSupport:$(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x
+CMSIS_SRC	 = $(notdir $(wildcard $(CMSIS_DIR)/CM3/CoreSupport/*.c \
+			   $(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x/*.c))
+
+INCLUDE_DIRS := $(INCLUDE_DIRS) \
+		   $(STDPERIPH_DIR)/inc \
+		   $(CMSIS_DIR)/CM3/CoreSupport \
+		   $(CMSIS_DIR)/CM3/DeviceSupport/ST/STM32F10x \
+
+LD_SCRIPT	 = $(ROOT)/stm32_flash_f103_256k.ld
+
+ARCH_FLAGS	 = -mthumb -mcpu=cortex-m3
+TARGET_FLAGS = -D$(TARGET) -pedantic
+DEVICE_FLAGS = -DSTM32F10X_HD -DSTM32F10X
+
+DEVICE_STDPERIPH_SRC = $(STDPERIPH_SRC)
+
 else
 
 STDPERIPH_DIR	 = $(ROOT)/lib/main/STM32F10x_StdPeriph_Driver
@@ -104,7 +129,7 @@ LD_SCRIPT	 = $(ROOT)/stm32_flash_f103_128k.ld
 
 ARCH_FLAGS	 = -mthumb -mcpu=cortex-m3
 TARGET_FLAGS = -D$(TARGET) -pedantic
-DEVICE_FLAGS = -DSTM32F10X_MD
+DEVICE_FLAGS = -DSTM32F10X_MD -DSTM32F10X
 
 DEVICE_STDPERIPH_SRC = $(STDPERIPH_SRC)
 
@@ -202,6 +227,31 @@ NAZE_SRC	 = startup_stm32f10x_md_gcc.S \
 		   $(HIGHEND_SRC) \
 		   $(COMMON_SRC)
 
+EUSTM32F103RC_SRC	 = startup_stm32f10x_hd_gcc.S \
+		   drivers/accgyro_mpu6050.c \
+		   drivers/adc.c \
+		   drivers/adc_stm32f10x.c \
+		   drivers/barometer_bmp085.c \
+		   drivers/bus_i2c_stm32f10x.c \
+		   drivers/bus_spi.c \
+		   drivers/compass_hmc5883l.c \
+		   drivers/gpio_stm32f10x.c \
+		   drivers/light_led_stm32f10x.c \
+		   drivers/light_ws2811strip.c \
+		   drivers/light_ws2811strip_stm32f10x.c \
+		   drivers/pwm_mapping.c \
+		   drivers/pwm_output.c \
+		   drivers/pwm_rx.c \
+		   drivers/serial_softserial.c \
+		   drivers/serial_uart.c \
+		   drivers/serial_uart_stm32f10x.c \
+		   drivers/sonar_hcsr04.c \
+		   drivers/sound_beeper_stm32f10x.c \
+		   drivers/system_stm32f10x.c \
+		   drivers/timer.c \
+		   $(HIGHEND_SRC) \
+		   $(COMMON_SRC)
+
 OLIMEXINO_SRC	 = startup_stm32f10x_md_gcc.S \
 		   drivers/accgyro_mpu6050.c \
 		   drivers/adc.c \
diff --git a/src/main/config/config.c b/src/main/config/config.c
index f3b40f0b32..9316d39f7a 100755
--- a/src/main/config/config.c
+++ b/src/main/config/config.c
@@ -75,11 +75,20 @@ void mixerUseConfigs(servoParam_t *servoConfToUse, flight3DConfig_t *flight3DCon
 #define FLASH_PAGE_SIZE                 ((uint16_t)0x800)
 #endif
 
-#ifndef FLASH_PAGE_COUNT
+#ifdef STM32F10X_MD
 #define FLASH_PAGE_COUNT 128
 #define FLASH_PAGE_SIZE                 ((uint16_t)0x400)
 #endif
 
+#ifdef STM32F10X_HD
+#define FLASH_PAGE_COUNT 128
+#define FLASH_PAGE_SIZE                 ((uint16_t)0x800)
+#endif
+
+#ifndef FLASH_PAGE_COUNT
+#error "Flash page count not defined for target."
+#endif
+
 // use the last flash pages for storage
 static uint32_t flashWriteAddress = (0x08000000 + (uint32_t)((FLASH_PAGE_SIZE * FLASH_PAGE_COUNT) - FLASH_TO_RESERVE_FOR_CONFIG));
 
@@ -465,14 +474,14 @@ void validateAndFixConfig(void)
     }
 
     if (feature(FEATURE_CURRENT_METER)) {
-#if defined(STM32F10X_MD)
+#if defined(STM32F10X)
         // rssi adc needs the same ports
         featureClear(FEATURE_RSSI_ADC);
         // current meter needs the same ports
         featureClear(FEATURE_CURRENT_METER);
 #endif
 
-#if defined(STM32F10X_MD) || defined(CHEBUZZ) || defined(STM32F3DISCOVERY)
+#if defined(STM32F10X) || defined(CHEBUZZ) || defined(STM32F3DISCOVERY)
         // led strip needs the same ports
         featureClear(FEATURE_LED_STRIP);
 #endif
@@ -482,7 +491,7 @@ void validateAndFixConfig(void)
     }
 
 
-#if defined(STM32F10X_MD)
+#if defined(STM32F10X)
     // led strip needs the same timer as softserial
     if (feature(FEATURE_SOFTSERIAL)) {
         featureClear(FEATURE_LED_STRIP);
@@ -513,7 +522,7 @@ void validateAndFixConfig(void)
 
 void initEEPROM(void)
 {
-#if defined(STM32F10X_MD)
+#if defined(STM32F10X)
 
 #define FLASH_SIZE_REGISTER 0x1FFFF7E0
 
@@ -569,10 +578,10 @@ void writeEEPROM(void)
     // write it
     FLASH_Unlock();
     while (attemptsRemaining--) {
-#ifdef STM32F3DISCOVERY
+#ifdef STM32F303
         FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPERR);
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);
 #endif
         for (wordOffset = 0; wordOffset < sizeof(master_t); wordOffset += 4) {
diff --git a/src/main/drivers/bus_spi.c b/src/main/drivers/bus_spi.c
index faa73f44bb..916e925641 100644
--- a/src/main/drivers/bus_spi.c
+++ b/src/main/drivers/bus_spi.c
@@ -166,7 +166,7 @@ uint8_t spiTransferByte(SPI_TypeDef *instance, uint8_t data)
 #ifdef STM32F303xC
     SPI_SendData8(instance, data);
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     SPI_I2S_SendData(instance, data);
 #endif
     spiTimeout = 1000;
@@ -177,7 +177,7 @@ uint8_t spiTransferByte(SPI_TypeDef *instance, uint8_t data)
 #ifdef STM32F303xC
     return ((uint8_t)SPI_ReceiveData8(instance));
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     return ((uint8_t)SPI_I2S_ReceiveData(instance));
 #endif
     }
@@ -194,20 +194,20 @@ bool spiTransfer(SPI_TypeDef *instance, uint8_t *out, uint8_t *in, int len)
             if ((spiTimeout--) == 0)
                 return spiTimeoutUserCallback(instance);
         }
-#ifdef STM32F303xC
+#ifdef STM32F303
         SPI_I2S_SendData16(instance, b);
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         SPI_I2S_SendData(instance, b);
 #endif
         while (SPI_I2S_GetFlagStatus(instance, SPI_I2S_FLAG_RXNE) == RESET) {
             if ((spiTimeout--) == 0)
                 return spiTimeoutUserCallback(instance);
         }
-#ifdef STM32F303xC
+#ifdef STM32F303
         b = SPI_I2S_ReceiveData16(instance);
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         b = SPI_I2S_ReceiveData(instance);
 #endif
         if (out)
diff --git a/src/main/drivers/gpio.h b/src/main/drivers/gpio.h
index 96c1371ca2..595140e4c7 100644
--- a/src/main/drivers/gpio.h
+++ b/src/main/drivers/gpio.h
@@ -17,7 +17,7 @@
 
 #pragma once
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
 typedef enum
 {
     Mode_AIN = 0x0,
diff --git a/src/main/drivers/pwm_mapping.c b/src/main/drivers/pwm_mapping.c
index ee01adb036..c7987788ee 100755
--- a/src/main/drivers/pwm_mapping.c
+++ b/src/main/drivers/pwm_mapping.c
@@ -69,7 +69,7 @@ enum {
     MAP_TO_SERVO_OUTPUT,
 };
 
-#if defined(NAZE) || defined(OLIMEXINO) || defined(NAZE32PRO) || defined(STM32F3DISCOVERY)
+#if defined(NAZE) || defined(OLIMEXINO) || defined(NAZE32PRO) || defined(STM32F3DISCOVERY) || defined(EUSTM32F103RC)
 static const uint16_t multiPPM[] = {
     PWM1  | (MAP_TO_PPM_INPUT << 8),     // PPM input
     PWM9  | (MAP_TO_MOTOR_OUTPUT << 8),      // Swap to servo if needed
@@ -277,13 +277,13 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init)
             continue;
 #endif
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         // skip UART2 ports
         if (init->useUART2 && (timerIndex == PWM3 || timerIndex == PWM4))
             continue;
 #endif
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         // skip softSerial ports
         if (init->useSoftSerial && (timerIndex == PWM5 || timerIndex == PWM6 || timerIndex == PWM7 || timerIndex == PWM8))
             continue;
@@ -302,7 +302,7 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init)
             continue;
 #endif
 
-#if defined(STM32F10X_MD) && !defined(CC3D)
+#if defined(STM32F10X) && !defined(CC3D)
 #define LED_STRIP_TIMER TIM3
 #endif
 
@@ -310,7 +310,7 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init)
 #define LED_STRIP_TIMER TIM3
 #endif
 
-#if defined(STM32F303xC)
+#if defined(STM32F303)
 #define LED_STRIP_TIMER TIM16
 #endif
 
@@ -320,7 +320,7 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init)
             continue;
 #endif
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
         // skip ADC for RSSI
         if (init->useRSSIADC && timerIndex == PWM2)
             continue;
@@ -334,7 +334,7 @@ pwmOutputConfiguration_t *pwmInit(drv_pwm_config_t *init)
             type = 0;
 
         if (init->useServos && !init->airplane) {
-#if defined(STM32F10X_MD) || defined(CHEBUZZF3)
+#if defined(STM32F10X) || defined(CHEBUZZF3)
             // remap PWM9+10 as servos
             if (timerIndex == PWM9 || timerIndex == PWM10)
                 type = MAP_TO_SERVO_OUTPUT;
diff --git a/src/main/drivers/pwm_mapping.h b/src/main/drivers/pwm_mapping.h
index 4ef366556e..151cccf78c 100755
--- a/src/main/drivers/pwm_mapping.h
+++ b/src/main/drivers/pwm_mapping.h
@@ -39,7 +39,7 @@ typedef struct drv_pwm_config_t {
     bool useParallelPWM;
     bool usePPM;
     bool useRSSIADC;
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     bool useUART2;
 #endif
     bool useSoftSerial;
diff --git a/src/main/drivers/pwm_output.c b/src/main/drivers/pwm_output.c
index db4f61b3f4..eca09971f1 100644
--- a/src/main/drivers/pwm_output.c
+++ b/src/main/drivers/pwm_output.c
@@ -38,7 +38,7 @@ typedef struct {
     volatile uint32_t *ccr;
 #endif
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     volatile uint16_t *ccr;
 #endif
     uint16_t period;
diff --git a/src/main/drivers/serial_softserial.c b/src/main/drivers/serial_softserial.c
index 1b25df1e9e..71f4835536 100644
--- a/src/main/drivers/serial_softserial.c
+++ b/src/main/drivers/serial_softserial.c
@@ -32,14 +32,14 @@
 #include "serial.h"
 #include "serial_softserial.h"
 
-#if defined(STM32F10X_MD) || defined(CHEBUZZF3)
+#if defined(STM32F10X) || defined(CHEBUZZF3)
 #define SOFT_SERIAL_1_TIMER_RX_HARDWARE 4 // PWM 5
 #define SOFT_SERIAL_1_TIMER_TX_HARDWARE 5 // PWM 6
 #define SOFT_SERIAL_2_TIMER_RX_HARDWARE 6 // PWM 7
 #define SOFT_SERIAL_2_TIMER_TX_HARDWARE 7 // PWM 8
 #endif
 
-#if defined(STM32F303xC) && !defined(CHEBUZZF3)
+#if defined(STM32F303) && !defined(CHEBUZZF3)
 #define SOFT_SERIAL_1_TIMER_RX_HARDWARE 8 // PWM 9
 #define SOFT_SERIAL_1_TIMER_TX_HARDWARE 9 // PWM 10
 #define SOFT_SERIAL_2_TIMER_RX_HARDWARE 10 // PWM 11
diff --git a/src/main/drivers/system.c b/src/main/drivers/system.c
index 9a886e5ed6..596ff8c845 100755
--- a/src/main/drivers/system.c
+++ b/src/main/drivers/system.c
@@ -39,7 +39,7 @@ static volatile uint32_t sysTickUptime = 0;
 // from system_stm32f30x.c
 void SetSysClock(void);
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
 // from system_stm32f10x.c
 void SetSysClock(bool overclock);
 #endif
@@ -77,7 +77,7 @@ uint32_t millis(void)
 void systemInit(bool overclock)
 {
 
-#ifdef STM32F303xC
+#ifdef STM32F303
     // start fpu
     SCB->CPACR = (0x3 << (10*2)) | (0x3 << (11*2));
 #endif
@@ -85,7 +85,7 @@ void systemInit(bool overclock)
 #ifdef STM32F303xC
     SetSysClock();
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     // Configure the System clock frequency, HCLK, PCLK2 and PCLK1 prescalers
     // Configure the Flash Latency cycles and enable prefetch buffer
     SetSysClock(overclock);
@@ -94,7 +94,7 @@ void systemInit(bool overclock)
     // Configure NVIC preempt/priority groups
     NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     // Turn on clocks for stuff we use
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
 #endif
@@ -105,7 +105,7 @@ void systemInit(bool overclock)
     enableGPIOPowerUsageAndNoiseReductions();
 
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     // Turn off JTAG port 'cause we're using the GPIO for leds
 #define AFIO_MAPR_SWJ_CFG_NO_JTAG_SW            (0x2 << 24)
     AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_NO_JTAG_SW;
diff --git a/src/main/drivers/timer.c b/src/main/drivers/timer.c
index 44692fc797..9e55806cbc 100644
--- a/src/main/drivers/timer.c
+++ b/src/main/drivers/timer.c
@@ -67,7 +67,7 @@
     TIM4 4 channels
 */
 
-#if (defined(STM32F10X_MD) || defined(NAZE)) && !defined(CC3D)
+#if (defined(STM32F10X) || defined(NAZE)) && !defined(CC3D)
 const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
     { TIM2, GPIOA, Pin_0, TIM_Channel_1, TIM2_IRQn, 0, Mode_IPD},          // PWM1
     { TIM2, GPIOA, Pin_1, TIM_Channel_2, TIM2_IRQn, 0, Mode_IPD},          // PWM2
@@ -122,7 +122,7 @@ static const TIM_TypeDef const *timers[MAX_TIMERS] = {
 #define TIMER_APB2_PERIPHERALS (RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB)
 #endif
 
-#if (defined(STM32F303xC) || defined(STM32F3DISCOVERY)) && !(defined(CHEBUZZF3) || defined(NAZE32PRO))
+#if (defined(STM32F303) || defined(STM32F3DISCOVERY)) && !(defined(CHEBUZZF3) || defined(NAZE32PRO))
 const timerHardware_t timerHardware[USABLE_TIMER_CHANNEL_COUNT] = {
     { TIM1, GPIOA, Pin_8, TIM_Channel_1, TIM1_CC_IRQn, 1, Mode_AF_PP_PD},             // PWM1 - PA8
     { TIM16, GPIOB, Pin_8, TIM_Channel_1, TIM1_UP_TIM16_IRQn, 0, Mode_AF_PP_PD},      // PWM2 - PB8
@@ -424,7 +424,7 @@ void TIM4_IRQHandler(void)
     timCCxHandler(TIM4);
 }
 
-#if defined(STM32F303xC) || defined(STM32F3DISCOVERY)
+#if defined(STM32F303) || defined(STM32F3DISCOVERY)
 void TIM8_CC_IRQHandler(void)
 {
     timCCxHandler(TIM8);
@@ -467,7 +467,7 @@ void timerInit(void)
 #endif
 
 
-#ifdef STM32F303xC
+#ifdef STM32F303
     GPIO_PinAFConfig(GPIOA, GPIO_PinSource8,  GPIO_AF_6);
     GPIO_PinAFConfig(GPIOB, GPIO_PinSource8,  GPIO_AF_1);
     GPIO_PinAFConfig(GPIOB, GPIO_PinSource9,  GPIO_AF_1);
diff --git a/src/main/drivers/timer.h b/src/main/drivers/timer.h
index 94331bacac..58bced1342 100644
--- a/src/main/drivers/timer.h
+++ b/src/main/drivers/timer.h
@@ -32,7 +32,7 @@
 #ifdef STM32F303xC
 typedef uint32_t captureCompare_t;
 #endif
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
 typedef uint16_t captureCompare_t;
 #endif
 
diff --git a/src/main/main.c b/src/main/main.c
index 3f3abce9a6..33d5b59d6d 100755
--- a/src/main/main.c
+++ b/src/main/main.c
@@ -185,7 +185,7 @@ void init(void)
     else
         pwm_params.airplane = false;
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
     if (!feature(FEATURE_RX_PARALLEL_PWM)) {
         pwm_params.useUART2 = doesConfigurationUsePort(SERIAL_PORT_USART2);
     }
diff --git a/src/main/platform.h b/src/main/platform.h
index 7327d1f488..d0a6ebf415 100644
--- a/src/main/platform.h
+++ b/src/main/platform.h
@@ -30,7 +30,7 @@
 
 #endif
 
-#ifdef STM32F10X_MD
+#ifdef STM32F10X
 
 #include "stm32f10x_conf.h"
 #include "stm32f10x_gpio.h"
@@ -41,7 +41,7 @@
 #define U_ID_1 (*(uint32_t*)0x1FFFF7EC)
 #define U_ID_2 (*(uint32_t*)0x1FFFF7F0)
 
-#endif // STM32F10X_MD
+#endif // STM32F10X
 
 #include "target.h"
 
diff --git a/src/main/sensors/initialisation.c b/src/main/sensors/initialisation.c
index 5de14deed0..29b5af709f 100755
--- a/src/main/sensors/initialisation.c
+++ b/src/main/sensors/initialisation.c
@@ -96,7 +96,7 @@
 #undef USE_GYRO_SPI_MPU6000
 #endif
 
-#if defined(OLIMEXINO)
+#if defined(OLIMEXINO) || defined(EUSTM32F103RC)
 #undef USE_GYRO_L3GD20
 #undef USE_GYRO_L3G4200D
 #undef USE_GYRO_MPU3050
diff --git a/src/main/sensors/sonar.c b/src/main/sensors/sonar.c
index e13fc7b788..792db1eeb2 100644
--- a/src/main/sensors/sonar.c
+++ b/src/main/sensors/sonar.c
@@ -39,7 +39,7 @@ int32_t sonarAlt = -1;	// in cm , -1 indicate sonar is not in range
 
 void Sonar_init(void)
 {
-#if defined(NAZE)
+#if defined(NAZE) || defined(EUSTM32F103RC)
     static const sonarHardware_t const sonarPWM56 = {
         .trigger_pin = Pin_8,   // PWM5 (PB8) - 5v tolerant
         .echo_pin = Pin_9,      // PWM6 (PB9) - 5v tolerant
diff --git a/src/main/startup/startup_stm32f10x_hd_gcc.S b/src/main/startup/startup_stm32f10x_hd_gcc.S
new file mode 100644
index 0000000000..4247e15bf1
--- /dev/null
+++ b/src/main/startup/startup_stm32f10x_hd_gcc.S
@@ -0,0 +1,408 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f10x_hd.s
+  * @author    MCD Application Team
+  * @version   V3.5.0
+  * @date      11-March-2011
+  * @brief     STM32F10x Medium Density Devices vector table for Atollic toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Configure the clock system
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M3 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */
+
+  .syntax unified
+	.cpu cortex-m3
+	.fpu softvfp
+	.thumb
+
+.global	g_pfnVectors
+.global	Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word	_sidata
+/* start address for the .data section. defined in linker script */
+.word	_sdata
+/* end address for the .data section. defined in linker script */
+.word	_edata
+/* start address for the .bss section. defined in linker script */
+.word	_sbss
+/* end address for the .bss section. defined in linker script */
+.word	_ebss
+
+.equ  BootRAM, 0xF108F85F
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+    .section	.text.Reset_Handler
+	.weak	Reset_Handler
+	.type	Reset_Handler, %function
+Reset_Handler:
+	ldr	r0, =0x2000CFF0              // HJI - TC bootloader entry on reset mod
+	ldr	r1, =0xDEADBEEF              // HJI - TC bootloader entry on reset mod
+	ldr	r2, [r0, #0]                 // HJI - TC bootloader entry on reset mod
+	str	r0, [r0, #0]                 // HJI - TC bootloader entry on reset mod
+	cmp	r2, r1                       // HJI - TC bootloader entry on reset mod
+	beq	Reboot_Loader                // HJI - TC bootloader entry on reset mod
+
+/* Copy the data segment initializers from flash to SRAM */
+  movs	r1, #0
+  b	LoopCopyDataInit
+
+CopyDataInit:
+	ldr	r3, =_sidata
+	ldr	r3, [r3, r1]
+	str	r3, [r0, r1]
+	adds	r1, r1, #4
+
+LoopCopyDataInit:
+	ldr	r0, =_sdata
+	ldr	r3, =_edata
+	adds	r2, r0, r1
+	cmp	r2, r3
+	bcc	CopyDataInit
+	ldr	r2, =_sbss
+	b	LoopFillZerobss
+/* Zero fill the bss segment. */
+FillZerobss:
+	movs	r3, #0
+	str	r3, [r2], #4
+
+LoopFillZerobss:
+	ldr	r3, = _ebss
+	cmp	r2, r3
+	bcc	FillZerobss
+
+/* Call the clock system intitialization function.*/
+    bl  SystemInit
+/* Call the application's entry point.*/
+	bl	main
+/* Atollic update, branch LoopForever */
+LoopForever:
+    b LoopForever
+    
+.equ	RCC_APB2ENR,	0x40021018   // HJI - TC bootloader entry on reset mod
+.equ	GPIO_AFIO_MASK,	0x00000009   // HJI - TC bootloader entry on reset mod
+.equ	GPIOB_CRL,	    0x40010C00   // HJI - TC bootloader entry on reset mod
+.equ	GPIOB_BRR,	    0x40010C14   // HJI - TC bootloader entry on reset mod
+.equ	AFIO_MAPR,	    0x40010004   // HJI - TC bootloader entry on reset mod
+
+Reboot_Loader:                       // HJI - TC bootloader entry on reset mod
+	    // RCC Enable GPIOB+AFIO     // HJI - TC bootloader entry on reset mod
+	    ldr	r6, =RCC_APB2ENR         // HJI - TC bootloader entry on reset mod
+	    ldr	r0, =GPIO_AFIO_MASK      // HJI - TC bootloader entry on reset mod
+	    str	R0, [r6];                // HJI - TC bootloader entry on reset mod
+        
+        // MAPR pt1                  // HJI - TC bootloader entry on reset mod
+        ldr     r0, =AFIO_MAPR       // HJI - TC bootloader entry on reset mod
+        ldr     r1, [r0]             // HJI - TC bootloader entry on reset mod
+        bic     r1, r1, #0x0F000000  // HJI - TC bootloader entry on reset mod
+        str     r1, [r0]             // HJI - TC bootloader entry on reset mod
+        
+        // MAPR pt2                  // HJI - TC bootloader entry on reset mod
+        lsls    r1, r0, #9           // HJI - TC bootloader entry on reset mod
+        str     r1, [r0]             // HJI - TC bootloader entry on reset mod
+        
+        // BRR                       // HJI - TC bootloader entry on reset mod
+        ldr     r4, =GPIOB_BRR       // HJI - TC bootloader entry on reset mod
+        movs    r0, #0x18            // HJI - TC bootloader entry on reset mod
+        str     r0, [r4]             // HJI - TC bootloader entry on reset mod
+        
+        // CRL                       // HJI - TC bootloader entry on reset mod
+        ldr     r1, =GPIOB_CRL       // HJI - TC bootloader entry on reset mod
+        ldr     r0, =0x44433444      // HJI - TC bootloader entry on reset mod
+        str     r0, [r1]             // HJI - TC bootloader entry on reset mod
+        
+        // Reboot to ROM             // HJI - TC bootloader entry on reset mod
+        ldr     r0, =0x1FFFF000      // HJI - TC bootloader entry on reset mod
+        ldr     sp,[r0, #0]          // HJI - TC bootloader entry on reset mod
+        ldr     r0,[r0, #4]          // HJI - TC bootloader entry on reset mod
+        bx      r0                   // HJI - TC bootloader entry on reset mod
+
+.size	Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section	.text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+	b	Infinite_Loop
+	.size	Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M3.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+ 	.section	.isr_vector,"a",%progbits
+	.type	g_pfnVectors, %object
+	.size	g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+	.word	_estack
+	.word	Reset_Handler
+	.word	NMI_Handler
+	.word	HardFault_Handler
+	.word	MemManage_Handler
+	.word	BusFault_Handler
+	.word	UsageFault_Handler
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	SVC_Handler
+	.word	DebugMon_Handler
+	.word	0
+	.word	PendSV_Handler
+	.word	SysTick_Handler
+	.word	WWDG_IRQHandler
+	.word	PVD_IRQHandler
+	.word	TAMPER_IRQHandler
+	.word	RTC_IRQHandler
+	.word	FLASH_IRQHandler
+	.word	RCC_IRQHandler
+	.word	EXTI0_IRQHandler
+	.word	EXTI1_IRQHandler
+	.word	EXTI2_IRQHandler
+	.word	EXTI3_IRQHandler
+	.word	EXTI4_IRQHandler
+	.word	DMA1_Channel1_IRQHandler
+	.word	DMA1_Channel2_IRQHandler
+	.word	DMA1_Channel3_IRQHandler
+	.word	DMA1_Channel4_IRQHandler
+	.word	DMA1_Channel5_IRQHandler
+	.word	DMA1_Channel6_IRQHandler
+	.word	DMA1_Channel7_IRQHandler
+	.word	ADC1_2_IRQHandler
+	.word	USB_HP_CAN1_TX_IRQHandler
+	.word	USB_LP_CAN1_RX0_IRQHandler
+	.word	CAN1_RX1_IRQHandler
+	.word	CAN1_SCE_IRQHandler
+	.word	EXTI9_5_IRQHandler
+	.word	TIM1_BRK_IRQHandler
+	.word	TIM1_UP_IRQHandler
+	.word	TIM1_TRG_COM_IRQHandler
+	.word	TIM1_CC_IRQHandler
+	.word	TIM2_IRQHandler
+	.word	TIM3_IRQHandler
+	.word	TIM4_IRQHandler
+	.word	I2C1_EV_IRQHandler
+	.word	I2C1_ER_IRQHandler
+	.word	I2C2_EV_IRQHandler
+	.word	I2C2_ER_IRQHandler
+	.word	SPI1_IRQHandler
+	.word	SPI2_IRQHandler
+	.word	USART1_IRQHandler
+	.word	USART2_IRQHandler
+	.word	USART3_IRQHandler
+	.word	EXTI15_10_IRQHandler
+	.word	RTCAlarm_IRQHandler
+	.word	USBWakeUp_IRQHandler
+  .word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	0
+	.word	BootRAM          /* @0x108. This is for boot in RAM mode for
+                            STM32F10x Medium Density devices. */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak	NMI_Handler
+	.thumb_set NMI_Handler,Default_Handler
+
+  .weak	HardFault_Handler
+	.thumb_set HardFault_Handler,Default_Handler
+
+  .weak	MemManage_Handler
+	.thumb_set MemManage_Handler,Default_Handler
+
+  .weak	BusFault_Handler
+	.thumb_set BusFault_Handler,Default_Handler
+
+	.weak	UsageFault_Handler
+	.thumb_set UsageFault_Handler,Default_Handler
+
+	.weak	SVC_Handler
+	.thumb_set SVC_Handler,Default_Handler
+
+	.weak	DebugMon_Handler
+	.thumb_set DebugMon_Handler,Default_Handler
+
+	.weak	PendSV_Handler
+	.thumb_set PendSV_Handler,Default_Handler
+
+	.weak	SysTick_Handler
+	.thumb_set SysTick_Handler,Default_Handler
+
+	.weak	WWDG_IRQHandler
+	.thumb_set WWDG_IRQHandler,Default_Handler
+
+	.weak	PVD_IRQHandler
+	.thumb_set PVD_IRQHandler,Default_Handler
+
+	.weak	TAMPER_IRQHandler
+	.thumb_set TAMPER_IRQHandler,Default_Handler
+
+	.weak	RTC_IRQHandler
+	.thumb_set RTC_IRQHandler,Default_Handler
+
+	.weak	FLASH_IRQHandler
+	.thumb_set FLASH_IRQHandler,Default_Handler
+
+	.weak	RCC_IRQHandler
+	.thumb_set RCC_IRQHandler,Default_Handler
+
+	.weak	EXTI0_IRQHandler
+	.thumb_set EXTI0_IRQHandler,Default_Handler
+
+	.weak	EXTI1_IRQHandler
+	.thumb_set EXTI1_IRQHandler,Default_Handler
+
+	.weak	EXTI2_IRQHandler
+	.thumb_set EXTI2_IRQHandler,Default_Handler
+
+	.weak	EXTI3_IRQHandler
+	.thumb_set EXTI3_IRQHandler,Default_Handler
+
+	.weak	EXTI4_IRQHandler
+	.thumb_set EXTI4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel1_IRQHandler
+	.thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel2_IRQHandler
+	.thumb_set DMA1_Channel2_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel3_IRQHandler
+	.thumb_set DMA1_Channel3_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel4_IRQHandler
+	.thumb_set DMA1_Channel4_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel5_IRQHandler
+	.thumb_set DMA1_Channel5_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel6_IRQHandler
+	.thumb_set DMA1_Channel6_IRQHandler,Default_Handler
+
+	.weak	DMA1_Channel7_IRQHandler
+	.thumb_set DMA1_Channel7_IRQHandler,Default_Handler
+
+	.weak	ADC1_2_IRQHandler
+	.thumb_set ADC1_2_IRQHandler,Default_Handler
+
+	.weak	USB_HP_CAN1_TX_IRQHandler
+	.thumb_set USB_HP_CAN1_TX_IRQHandler,Default_Handler
+
+	.weak	USB_LP_CAN1_RX0_IRQHandler
+	.thumb_set USB_LP_CAN1_RX0_IRQHandler,Default_Handler
+
+	.weak	CAN1_RX1_IRQHandler
+	.thumb_set CAN1_RX1_IRQHandler,Default_Handler
+
+	.weak	CAN1_SCE_IRQHandler
+	.thumb_set CAN1_SCE_IRQHandler,Default_Handler
+
+	.weak	EXTI9_5_IRQHandler
+	.thumb_set EXTI9_5_IRQHandler,Default_Handler
+
+	.weak	TIM1_BRK_IRQHandler
+	.thumb_set TIM1_BRK_IRQHandler,Default_Handler
+
+	.weak	TIM1_UP_IRQHandler
+	.thumb_set TIM1_UP_IRQHandler,Default_Handler
+
+	.weak	TIM1_TRG_COM_IRQHandler
+	.thumb_set TIM1_TRG_COM_IRQHandler,Default_Handler
+
+	.weak	TIM1_CC_IRQHandler
+	.thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+	.weak	TIM2_IRQHandler
+	.thumb_set TIM2_IRQHandler,Default_Handler
+
+	.weak	TIM3_IRQHandler
+	.thumb_set TIM3_IRQHandler,Default_Handler
+
+	.weak	TIM4_IRQHandler
+	.thumb_set TIM4_IRQHandler,Default_Handler
+
+	.weak	I2C1_EV_IRQHandler
+	.thumb_set I2C1_EV_IRQHandler,Default_Handler
+
+	.weak	I2C1_ER_IRQHandler
+	.thumb_set I2C1_ER_IRQHandler,Default_Handler
+
+	.weak	I2C2_EV_IRQHandler
+	.thumb_set I2C2_EV_IRQHandler,Default_Handler
+
+	.weak	I2C2_ER_IRQHandler
+	.thumb_set I2C2_ER_IRQHandler,Default_Handler
+
+	.weak	SPI1_IRQHandler
+	.thumb_set SPI1_IRQHandler,Default_Handler
+
+	.weak	SPI2_IRQHandler
+	.thumb_set SPI2_IRQHandler,Default_Handler
+
+	.weak	USART1_IRQHandler
+	.thumb_set USART1_IRQHandler,Default_Handler
+
+	.weak	USART2_IRQHandler
+	.thumb_set USART2_IRQHandler,Default_Handler
+
+	.weak	USART3_IRQHandler
+	.thumb_set USART3_IRQHandler,Default_Handler
+
+	.weak	EXTI15_10_IRQHandler
+	.thumb_set EXTI15_10_IRQHandler,Default_Handler
+
+	.weak	RTCAlarm_IRQHandler
+	.thumb_set RTCAlarm_IRQHandler,Default_Handler
+
+	.weak	USBWakeUp_IRQHandler
+	.thumb_set USBWakeUp_IRQHandler,Default_Handler
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
+
diff --git a/src/main/target/EUSTM32F103RC/target.h b/src/main/target/EUSTM32F103RC/target.h
new file mode 100644
index 0000000000..c802fc84bc
--- /dev/null
+++ b/src/main/target/EUSTM32F103RC/target.h
@@ -0,0 +1,45 @@
+/*
+ * 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/>.
+ */
+
+#pragma once
+
+#define ACC
+#define BARO
+#define GYRO
+#define MAG
+#define SONAR
+
+#define USE_USART1
+#define USE_USART2
+#define USE_SOFT_SERIAL
+#define SERIAL_PORT_COUNT 4
+
+#define I2C_DEVICE (I2CDEV_2)
+
+// #define SOFT_I2C // enable to test software i2c
+// #define SOFT_I2C_PB1011 // If SOFT_I2C is enabled above, need to define pinout as well (I2C1 = PB67, I2C2 = PB1011)
+// #define SOFT_I2C_PB67
+
+#define SENSORS_SET (SENSOR_ACC | SENSOR_BARO | SENSOR_MAG)
+
+#define GPS
+#define LED_STRIP
+#define TELEMETRY
+#define SOFT_SERIAL
+#define SERIAL_RX
+#define AUTOTUNE
+
diff --git a/stm32_flash_f103_256k.ld b/stm32_flash_f103_256k.ld
new file mode 100644
index 0000000000..f41c90c19c
--- /dev/null
+++ b/stm32_flash_f103_256k.ld
@@ -0,0 +1,150 @@
+/*
+*****************************************************************************
+**
+**  File        : stm32_flash.ld
+**
+**  Abstract    : Linker script for STM32F103RC Device with
+**                256KByte FLASH, 48KByte RAM
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x2000C000;    /* end of 48K RAM */
+
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas. Flash is limited for last 2K for configuration storage */
+MEMORY
+{
+  FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 254K /* last 2kb used for config storage */
+  RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 48K
+  MEMORY_B1 (rx)  : ORIGIN = 0x60000000, LENGTH = 0K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+
+   .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+    .ARM : {
+    __exidx_start = .;
+      *(.ARM.exidx*)
+      __exidx_end = .;
+    } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(.fini_array*))
+    KEEP (*(SORT(.fini_array.*)))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = .;
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(4);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(4);
+  } >RAM
+
+  /* MEMORY_bank1 section, code must be located here explicitly            */
+  /* Example: extern int foo(void) __attribute__ ((section (".mb1text"))); */
+  .memory_b1_text :
+  {
+    *(.mb1text)        /* .mb1text sections (code) */
+    *(.mb1text*)       /* .mb1text* sections (code)  */
+    *(.mb1rodata)      /* read-only data (constants) */
+    *(.mb1rodata*)
+  } >MEMORY_B1
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}