diff --git a/platform_config.h b/platform_config.h
--- a/platform_config.h
+++ b/platform_config.h
@@ -31,45 +31,9 @@
 #define __PLATFORM_CONFIG_H
 
 /* Includes ------------------------------------------------------------------*/
-#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS)
- #include "stm32l1xx.h"
- #if defined (USE_STM32L152_EVAL)
-  #include "stm32l152_eval.h"
- #elif defined (USE_STM32L152D_EVAL)
-  #include "stm32l152d_eval.h"
- #else
-  #error "Missing define: USE_STM32L152_EVAL or USE_STM32L152D_EVAL"
- #endif /* USE_STM32L152_EVAL */
-#elif defined (STM32F10X_MD) || defined (STM32F10X_HD) || defined (STM32F10X_XL)
- #include "stm32f10x.h"
- #if defined (USE_STM3210B_EVAL)
-  #include "stm3210b_eval.h"
- #elif defined (USE_STM3210E_EVAL)
-  #include "stm3210e_eval.h"
- #else
-  #error "Missing define: USE_STM3210B_EVAL or USE_STM3210E_EVAL"
- #endif /* USE_STM3210B_EVAL */
-#elif defined (USE_STM32373C_EVAL)
- #include "stm32f37x.h"
- #include "stm32373c_eval.h"
-#elif defined (USE_STM32303C_EVAL)
- #include "stm32f30x.h"
- #include "stm32303c_eval.h"
-#endif
+#include "stm32l1xx.h"
 
 /* Exported types ------------------------------------------------------------*/
-/* Exported constants --------------------------------------------------------*/
-/* Uncomment the line corresponding to the STMicroelectronics evaluation board
-   used to run the example */
-#if !defined (USE_STM3210B_EVAL) &&  !defined (USE_STM3210E_EVAL)  && !defined (USE_STM32L152_EVAL) &&  !defined (USE_STM32L152D_EVAL) &&  !defined (USE_STM32373C_EVAL) &&  !defined (USE_STM32303C_EVAL)
-//#define USE_STM3210B_EVAL
-//#define USE_STM3210E_EVAL
-//#define USE_STM32L152_EVAL
-//#define USE_STM32L152D_EVAL
-//#define (USE_STM32373C_EVAL)
-#define (USE_STM32303C_EVAL)
-#endif
-
 
 /*Unique Devices IDs register set*/
 
@@ -93,39 +57,11 @@
 
 #endif
 
-
-/* Define the STM32F10x hardware depending on the used evaluation board */
-#ifdef USE_STM3210B_EVAL
-  #define USB_DISCONNECT                      GPIOD  
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_9
-  #define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOD
-
-#elif defined (USE_STM3210E_EVAL)
-  #define USB_DISCONNECT                      GPIOB  
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_14
-  #define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOB
- 
-#elif defined (USE_STM32L152_EVAL) || defined (USE_STM32L152D_EVAL)
- /* 
-   For STM32L15xx devices it is possible to use the internal USB pullup
-   controlled by register SYSCFG_PMC (refer to RM0038 reference manual for
-   more details).
-   It is also possible to use external pullup (and disable the internal pullup)
-   by setting the define USB_USE_EXTERNAL_PULLUP in file platform_config.h
-   and configuring the right pin to be used for the external pull up configuration.
-   To have more details on how to use an external pull up, please refer to 
-   STM3210E-EVAL evaluation board manuals.
-   */
- /* Uncomment the following define to use an external pull up instead of the 
-    integrated STM32L15xx internal pull up. In this case make sure to set up
-    correctly the external required hardware and the GPIO defines below.*/
-/* #define USB_USE_EXTERNAL_PULLUP */
-
- #if !defined(USB_USE_EXTERNAL_PULLUP)
+#if !defined(USB_USE_EXTERNAL_PULLUP)
   #define STM32L15_USB_CONNECT                SYSCFG_USBPuCmd(ENABLE)
   #define STM32L15_USB_DISCONNECT             SYSCFG_USBPuCmd(DISABLE)
 
- #elif defined(USB_USE_EXTERNAL_PULLUP)
+#elif defined(USB_USE_EXTERNAL_PULLUP)
   /* PA0 is chosen just as illustrating example, you should modify the defines
     below according to your hardware configuration. */ 
   #define USB_DISCONNECT                      GPIOA
@@ -133,19 +69,7 @@
   #define RCC_AHBPeriph_GPIO_DISCONNECT       RCC_AHBPeriph_GPIOA
   #define STM32L15_USB_CONNECT                GPIO_ResetBits(USB_DISCONNECT, USB_DISCONNECT_PIN)
   #define STM32L15_USB_DISCONNECT             GPIO_SetBits(USB_DISCONNECT, USB_DISCONNECT_PIN)
- #endif /* USB_USE_EXTERNAL_PULLUP */
-
-#elif defined (USE_STM32373C_EVAL)
-  #define USB_DISCONNECT                      GPIOC  
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_5
-  #define RCC_AHBPeriph_GPIO_DISCONNECT       RCC_AHBPeriph_GPIOC
-
-#elif defined (USE_STM32303C_EVAL)
-  #define USB_DISCONNECT                      GPIOB  
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_8
-
-  #define RCC_AHBPeriph_GPIO_DISCONNECT       RCC_AHBPeriph_GPIOB
-#endif /* USE_STM3210B_EVAL */
+#endif /* USB_USE_EXTERNAL_PULLUP */
 
 /* Exported macro ------------------------------------------------------------*/
 /* Exported functions ------------------------------------------------------- */