diff --git a/hw_config.c b/hw_config.c
--- a/hw_config.c
+++ b/hw_config.c
@@ -62,9 +62,7 @@ extern LINE_CODING linecoding;
 *******************************************************************************/
 void Set_System(void)
 {
-#if !defined(STM32L1XX_MD) && !defined(STM32L1XX_HD) && !defined(STM32L1XX_MD_PLUS)
   GPIO_InitTypeDef GPIO_InitStructure;
-#endif /* STM32L1XX_MD && STM32L1XX_XD */  
 
 #if defined(USB_USE_EXTERNAL_PULLUP)
   GPIO_InitTypeDef  GPIO_InitStructure;
@@ -76,21 +74,17 @@ void Set_System(void)
        To reconfigure the default setting of SystemInit() function, refer to
        system_stm32f10x.c file
      */   
-#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD)|| defined(STM32L1XX_MD_PLUS) || defined(STM32F37X) || defined(STM32F30X)
   /* Enable the SYSCFG module clock */
   RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
-#endif /* STM32L1XX_XD */ 
    
-#if !defined(STM32L1XX_MD) && !defined(STM32L1XX_HD) && !defined(STM32L1XX_MD_PLUS) && !defined(STM32F37X) && !defined(STM32F30X)
   /* Enable USB_DISCONNECT GPIO clock */
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_DISCONNECT, ENABLE);
+  //RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIO_DISCONNECT, ENABLE);
 
   /* Configure USB pull-up pin */
-  GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
-  GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
-#endif /* STM32L1XX_MD && STM32L1XX_XD */
+  //GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
+  //GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
+  //GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
+  //GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
    
 #if defined(USB_USE_EXTERNAL_PULLUP)
   /* Enable the USB disconnect GPIO clock */
@@ -105,34 +99,7 @@ void Set_System(void)
   GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);  
 #endif /* USB_USE_EXTERNAL_PULLUP */ 
   
-#if defined(STM32F37X) || defined(STM32F30X)
-  
-  /* Enable the USB disconnect GPIO clock */
-  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIO_DISCONNECT, ENABLE);
-  
-  /*Set PA11,12 as IN - USB_DM,DP*/ 
-  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
-  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
-  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
-  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-  GPIO_Init(GPIOA, &GPIO_InitStructure);
-  
-  /*SET PA11,12 for USB: USB_DM,DP*/
-  GPIO_PinAFConfig(GPIOA, GPIO_PinSource11, GPIO_AF_14);
-  GPIO_PinAFConfig(GPIOA, GPIO_PinSource12, GPIO_AF_14);
-  
-  /* USB_DISCONNECT used as USB pull-up */
-  GPIO_InitStructure.GPIO_Pin = USB_DISCONNECT_PIN;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
-  GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
-  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
-  GPIO_Init(USB_DISCONNECT, &GPIO_InitStructure);
-#endif /* STM32F37X  && STM32F30X)*/
- 
-   /* Configure the EXTI line 18 connected internally to the USB IP */
+  /* Configure the EXTI line 18 connected internally to the USB IP */
   EXTI_ClearITPendingBit(EXTI_Line18);
   EXTI_InitStructure.EXTI_Line = EXTI_Line18;
   EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
@@ -148,17 +115,8 @@ void Set_System(void)
 *******************************************************************************/
 void Set_USBClock(void)
 {
-#if defined(STM32L1XX_MD) || defined(STM32L1XX_HD) || defined(STM32L1XX_MD_PLUS) 
   /* Enable USB clock */
   RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
-  
-#else 
-  /* Select USBCLK source */
-  RCC_USBCLKConfig(RCC_USBCLKSource_PLLCLK_1Div5);
-  
-  /* Enable the USB clock */
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, ENABLE);
-#endif /* STM32L1XX_MD */
 }
 
 /*******************************************************************************
@@ -210,7 +168,6 @@ NVIC_InitTypeDef NVIC_InitStructure;
   /* 2 bit for pre-emption priority, 2 bits for subpriority */
   NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
  
-#if defined(STM32L1XX_MD)|| defined(STM32L1XX_HD) || defined(STM32L1XX_MD_PLUS)
   /* Enable the USB interrupt */
   NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQn;
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
@@ -223,34 +180,6 @@ NVIC_InitTypeDef NVIC_InitStructure;
   NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
   NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
   NVIC_Init(&NVIC_InitStructure);
-
-#elif defined(STM32F37X)
-  /* Enable the USB interrupt */
-  NVIC_InitStructure.NVIC_IRQChannel = USB_LP_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
-  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
-  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-  NVIC_Init(&NVIC_InitStructure);
-  
-  /* Enable the USB Wake-up interrupt */
-  NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
-  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-  NVIC_Init(&NVIC_InitStructure);
-  
-#else
-  /* Enable the USB interrupt */
-  NVIC_InitStructure.NVIC_IRQChannel = USB_LP_CAN1_RX0_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
-  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
-  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-  NVIC_Init(&NVIC_InitStructure);
-  
-  /* Enable the USB Wake-up interrupt */
-  NVIC_InitStructure.NVIC_IRQChannel = USBWakeUp_IRQn;
-  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
-  NVIC_Init(&NVIC_InitStructure);   
-#endif
 }
 
 /*******************************************************************************
@@ -261,7 +190,6 @@ NVIC_InitTypeDef NVIC_InitStructure;
 *******************************************************************************/
 void USB_Cable_Config (FunctionalState NewState)
 {
-#if defined(STM32L1XX_MD) || defined (STM32L1XX_HD)|| (STM32L1XX_MD_PLUS)
   if (NewState != DISABLE)
   {
     STM32L15_USB_CONNECT;
@@ -270,17 +198,6 @@ void USB_Cable_Config (FunctionalState N
   {
     STM32L15_USB_DISCONNECT;
   }  
-  
-#else /* USE_STM3210B_EVAL or USE_STM3210E_EVAL */
-  if (NewState != DISABLE)
-  {
-    GPIO_ResetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
-  }
-  else
-  {
-    GPIO_SetBits(USB_DISCONNECT, USB_DISCONNECT_PIN);
-  }
-#endif /* STM32L1XX_MD */
 }
 
 /*******************************************************************************
diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -45,6 +45,8 @@ int main(void)
 
     Set_USBClock();
     USB_Interrupts_Config();
+    USB_Init();
+
     GPIO_SetBits(LED_POWER);
     USB_Init(); // freezes here... maybe clock issue?