diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -39,7 +39,7 @@ int main(void)
     Set_USBClock();
     USB_Interrupts_Config();
     GPIO_SetBits(LED_POWER);
-    //USB_Init(); // freezes here... maybe clock issue?
+    USB_Init(); // freezes here... maybe clock issue?
 
     RCC_ClocksTypeDef RCC_Clocks;
 
@@ -59,9 +59,10 @@ int main(void)
     ssd1306_DrawPoint(3,3,1);
     ssd1306_DrawPoint(5,5,0);
 
-
     while(1)
    {  
+        ssd1306_block_write();
+
         // Process sensor inputs [TODO: 5hz?]
         process();
 
@@ -76,8 +77,8 @@ int main(void)
         uint8_t sw_left = GPIO_ReadInputDataBit(SW_LEFT);
         uint8_t sw_right = GPIO_ReadInputDataBit(SW_RIGHT);
 
-        SPI_I2S_SendData(SPI2,0xFA);
-        SPI_I2S_SendData(SPI1,0xFA);
+//        SPI_I2S_SendData(SPI2,0xFA);
+//        SPI_I2S_SendData(SPI1,0xFA);
 
         if(!GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_3)) {
             GPIO_ToggleBits(LED_STAT);
@@ -104,7 +105,7 @@ void process()
 
     // Assert CS
     // This may not clock at all... might need to send 16 bits first
-    uint8_t retval = SPI_I2S_ReceiveData(SPI2);
+    uint8_t retval = 0;//SPI_I2S_ReceiveData(SPI2);
 
     // Deassert CS
     GPIO_SetBits(MAX_CS);
diff --git a/platform_config.h b/platform_config.h
--- a/platform_config.h
+++ b/platform_config.h
@@ -96,65 +96,9 @@
 #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
-  #define EVAL_COM1_IRQHandler                USART1_IRQHandler 
-
-#elif defined (USE_STM3210E_EVAL)
-  #define USB_DISCONNECT                      GPIOB  
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_14
-  #define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOB
-  #define EVAL_COM1_IRQHandler                USART1_IRQHandler 
- 
-
-#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)
-  #define STM32L15_USB_CONNECT                SYSCFG_USBPuCmd(ENABLE)
-  #define STM32L15_USB_DISCONNECT             SYSCFG_USBPuCmd(DISABLE)
-
- #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
-  #define USB_DISCONNECT_PIN                  GPIO_Pin_0
-  #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 */
-
-#if defined (USE_STM32L152_EVAL) || (USE_STM32373C_EVAL)
- #define EVAL_COM1_IRQHandler                USART2_IRQHandler
-#elif defined (USE_STM32L152D_EVAL) || (USE_STM32303C_EVAL)
- #define EVAL_COM1_IRQHandler              USART1_IRQHandler
-#endif
+#define USB_DISCONNECT                      GPIOA  
+#define USB_DISCONNECT_PIN                  GPIO_Pin_10
+#define RCC_APB2Periph_GPIO_DISCONNECT      RCC_APB2Periph_GPIOA
 
 /* Exported macro ------------------------------------------------------------*/
 /* Exported functions ------------------------------------------------------- */
diff --git a/ssd1306.c b/ssd1306.c
--- a/ssd1306.c
+++ b/ssd1306.c
@@ -92,7 +92,7 @@ void ssd1306_Init(void)
   *************************************************/
   // Lower Column Address
   WriteCommand(0x00); /* Set Lower Column Address */
-  GPIO_SetBits(GPIOA,GPIO_Pin_15);
+  GPIO_SetBits(GPIOA,GPIO_Pin_15);//turn on status LED
   // High Column Address
   WriteCommand(0x10); /* Set Higher Column Address*/
   // Display Start Line
@@ -164,6 +164,27 @@ void ssd1306_Init(void)
 //  WriteCommand(0xaf);
 }
 
+void ssd1306_block_write(void)
+{
+ 
+  // Set col start addr to 0
+  WriteCommand(0x21); 
+  WriteCommand(0x00); 
+  // Set col end addr to width - 1
+  WriteCommand(127);
+
+  // Set page addr
+  WriteCommand(0x22);
+  WriteCommand(0x00); // start page addr
+  WriteCommand(4); // end page addr (height / 8)
+
+
+  uint32_t i = 0;
+  for(i=0;i<1024;i++)
+    WriteData(ssd1306_Buffer[i]);
+}
+
+
 /*******************************************************************************
 * Function Name  : ssd1306_TurnOff
 * Description    : Turn off the ssd1306 controller
diff --git a/ssd1306.h b/ssd1306.h
--- a/ssd1306.h
+++ b/ssd1306.h
@@ -13,5 +13,6 @@ unsigned char ssd1306_SetContrast(unsign
 unsigned char ssd1306_GetContrast();
 unsigned char* ssd1306_GetBuffer();
 unsigned long ssd1306_DrawPoint(Pos_t x, Pos_t y, Color_t color);
+void ssd1306_block_write(void);
 
 #endif