diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -2,9 +2,16 @@
 #include "stm32l100c_discovery.h"
 #include "ssd1306.h"
 
+// USB includes
+#include "hw_config.h"
+#include "usb_lib.h"
+#include "usb_desc.h"
+#include "usb_pwr.h"
+
 #define LED_POWER GPIOB,GPIO_Pin_9
 #define LED_STAT  GPIOA,GPIO_Pin_15
 
+#define MAX_CS GPIOB,GPIO_Pin_12
 
 // TODO: Grab buttonpresses with interrupts
 #define SW_BTN  GPIOB, GPIO_Pin_3
@@ -26,6 +33,15 @@ int main(void)
 
     // Init clocks
     SystemInit();
+
+    init_gpio();
+
+    Set_USBClock();
+    USB_Interrupts_Config();
+    USB_Init();
+
+    GPIO_SetBits(LED_POWER);
+
     RCC_ClocksTypeDef RCC_Clocks;
 
     // SysTick end of count event each 1ms
@@ -35,11 +51,10 @@ int main(void)
     GPIO_ResetBits(LED_STAT);
     Delay(100);
 
-    init_gpio();
 
-    ssd1306_Init();
-    ssd1306_DrawPoint(3,3,1);
-    ssd1306_DrawPoint(5,5,0);
+    //ssd1306_Init();
+    //ssd1306_DrawPoint(3,3,1);
+    //ssd1306_DrawPoint(5,5,0);
 
     GPIO_SetBits(LED_POWER);
     Delay(500);
@@ -56,7 +71,7 @@ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SP
         process();
 
         // Run state machine [TODO: 50hz?]
-        machine(); // this argument is sooo wrong
+        machine(); 
         // probably just passed the actual port
 
         // TODO: Grab buttonpresses with interrupts
@@ -72,16 +87,14 @@ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SP
         if(!GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_3)) {
             GPIO_ToggleBits(LED_STAT);
         }
-//        ssd1306_DrawPoint(5,5,0);
+
         GPIO_SetBits(LED_POWER);
-        Delay(150);
+        Delay(50);
         GPIO_ResetBits(LED_POWER);
-        Delay(150);
+        Delay(50);
     }
 }
 
-
-
 int32_t temp = 0;
 int32_t setpoint = 0;
 int32_t p = 1;
@@ -92,7 +105,26 @@ int32_t d = 1;
 void process()
 {
     // Read MAX temp sensor
-    temp = 0;
+    GPIO_ResetBits(MAX_CS);
+
+    // Assert CS
+    // This may not clock at all... might need to send 16 bits first
+    uint8_t retval = SPI_I2S_ReceiveData(SPI2);
+
+    // Deassert CS
+    GPIO_SetBits(MAX_CS);
+
+    if((!retval || (temp & 0x2) != 0))
+        return; // Comms error
+
+    if((temp & 0x4)!= 0)
+        return; // Open thermocouple
+
+
+    temp = (temp & 0x7FF8) >> 5;
+
+    // TODO: Add calibration offset (linear)
+
 
     // Perform PID calculations
 
@@ -311,15 +343,15 @@ void init_spi(void)
     SPI_Cmd(SPI1, ENABLE);           /* Enable the SPI  */   
 
     // MAX IC
-    SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
+    //SPI_InitStructure.SPI_Direction = SPI_Direction_1Line_Rx;
     SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
-    SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
-    SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
-    SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
-    SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
+    SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b; // Andysworkshop
+    SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; // From andysworkshop
+    SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; // same
+    // Can be used for CS... SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
     SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
-    SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
-    SPI_InitStructure.SPI_CRCPolynomial = 7;
+    //SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
+    //SPI_InitStructure.SPI_CRCPolynomial = 7;
     SPI_Init(SPI2, &SPI_InitStructure);
     SPI_Cmd(SPI2, ENABLE);           /* Enable the SPI */
 }