diff --git a/src/config/conf_usb.h b/src/config/conf_usb.h
index 89a3885feb10f55010a5f227361aac48ff7aab2a..e9149942cd74d0163f8947f216c832dfd4c33ab2 100644
--- a/src/config/conf_usb.h
+++ b/src/config/conf_usb.h
@@ -67,7 +67,10 @@
//! USB Device string definitions (Optional)
#define USB_DEVICE_MANUFACTURE_NAME "Wheeler Lab"
#define USB_DEVICE_PRODUCT_NAME "DStat"
-#define USB_DEVICE_SERIAL_NAME "12...EF"
+#define USB_DEVICE_SERIAL_NAME
+#define USB_DEVICE_GET_SERIAL_NAME_POINTER serial_number
+#define USB_DEVICE_GET_SERIAL_NAME_LENGTH 10 //DSTAT + 5
+extern uint8_t serial_number[];
/**
@@ -164,6 +167,6 @@ extern void my_callback_cdc_set_rts(uint8_t port, uint8_t b_enable);
//! The includes of classes and other headers must be done at the end of this file to avoid compile error
#include "udi_cdc_conf.h"
-#include "leds.h"
+#include "usb.h"
#endif // _CONF_USB_H_
diff --git a/src/leds.c b/src/leds.c
deleted file mode 100644
index ab94e1efec31860a2347467317d3b9735720f3c0..0000000000000000000000000000000000000000
--- a/src/leds.c
+++ /dev/null
@@ -1,30 +0,0 @@
-//
-// leds.c
-// dstat-firmware
-//
-// Created by Michael Dryden on 2017-05-04.
-// Copyright © 2017 Michael Dryden. All rights reserved.
-//
-
-#include "leds.h"
-#include "config/conf_board.h"
-#include <ioport.h>
-#include <util/atomic.h>
-
-void my_callback_cdc_set_rts(uint8_t port, uint8_t b_enable){
- static uint8_t connected = 0;
-
- #if BOARD_VER_MAJOR >= 1 && BOARD_VER_MINOR >= 2 && BOARD_VER_MICRO >=3
- ioport_set_pin_level(LED2, b_enable);
- #endif
-
- if (connected && !b_enable){
- ATOMIC_BLOCK(ATOMIC_RESTORESTATE){
- CCP = 0xD8; // Configuration change protection: allow protected IO regiser write
- RST.CTRL = RST_SWRST_bm; // Request software reset by writing to protected IO register
- }
- }
- connected = b_enable;
-}
-
-
diff --git a/src/main.c b/src/main.c
index e6e5a33478e7bfc2af93f905f7e35013089dd521..4e259d9bbeace4677b134252c6464902afed2985 100644
--- a/src/main.c
+++ b/src/main.c
@@ -15,6 +15,7 @@
#include <stdint.h>
#include "conf_board.h"
#include "ext_twi.h"
+#include "usb.h"
#include <util/atomic.h>
//Internal function declarations
@@ -119,7 +120,9 @@ int main(void){
sysclk_enable_module(SYSCLK_PORT_GEN, SYSCLK_EVSYS);
pmic_set_scheduling(PMIC_SCH_ROUND_ROBIN);
-
+
+ init_build_usb_serial_number();
+
stdio_usb_init();
ads1255_init_pins();
diff --git a/src/usb.c b/src/usb.c
new file mode 100644
index 0000000000000000000000000000000000000000..a6dc4d654d61e98e26e10421b8110a3117a64668
--- /dev/null
+++ b/src/usb.c
@@ -0,0 +1,77 @@
+//
+// leds.c
+// dstat-firmware
+//
+// Created by Michael Dryden on 2017-05-04.
+// Copyright © 2017 Michael Dryden. All rights reserved.
+//
+
+#include "usb.h"
+#include "config/conf_board.h"
+#include <ioport.h>
+#include <util/atomic.h>
+#include <string.h>
+
+uint8_t ReadSignatureByte(uint16_t Address);
+void NVM_GetGUID(uint8_t* bytearray);
+
+void my_callback_cdc_set_rts(uint8_t port, uint8_t b_enable){
+ static uint8_t connected = 0;
+
+ #if BOARD_VER_MAJOR >= 1 && BOARD_VER_MINOR >= 2 && BOARD_VER_MICRO >=3
+ ioport_set_pin_level(LED2, b_enable);
+ #endif
+
+ if (connected && !b_enable){
+ ATOMIC_BLOCK(ATOMIC_RESTORESTATE){
+ CCP = 0xD8; // Configuration change protection: allow protected IO regiser write
+ RST.CTRL = RST_SWRST_bm; // Request software reset by writing to protected IO register
+ }
+ }
+ connected = b_enable;
+}
+
+void init_build_usb_serial_number(void)
+{
+ serial_number[0] = 'D';
+ serial_number[1] = 'S';
+ serial_number[2] = 'T';
+ serial_number[3] = 'A';
+ serial_number[4] = 'T';
+
+ NVM_GetGUID(&serial_number[5]);
+}
+
+uint8_t ReadSignatureByte(uint16_t Address) {
+ NVM_CMD = NVM_CMD_READ_CALIB_ROW_gc;
+ uint8_t Result;
+ __asm__ ("lpm %0, Z\n" : "=r" (Result) : "z" (Address));
+ // __asm__ ("lpm \n mov %0, r0 \n" : "=r" (Result) : "z" (Address) : "r0");
+ NVM_CMD = NVM_CMD_NO_OPERATION_gc;
+ return Result;
+}
+
+void NVM_GetGUID(uint8_t* b) {
+ enum {
+ LOTNUM0=8, // Lot Number Byte 0, ASCII
+ LOTNUM1, // Lot Number Byte 1, ASCII
+ LOTNUM2, // Lot Number Byte 2, ASCII
+ LOTNUM3, // Lot Number Byte 3, ASCII
+ LOTNUM4, // Lot Number Byte 4, ASCII
+ LOTNUM5, // Lot Number Byte 5, ASCII
+ WAFNUM =16, // Wafer Number
+ COORDX0=18, // Wafer Coordinate X Byte 0
+ COORDX1, // Wafer Coordinate X Byte 1
+ COORDY0, // Wafer Coordinate Y Byte 0
+ COORDY1, // Wafer Coordinate Y Byte 1
+ };
+
+ b[ 0]=ReadSignatureByte(LOTNUM0);
+ b[ 1]=ReadSignatureByte(LOTNUM1);
+ b[ 2]=ReadSignatureByte(LOTNUM2);
+ b[ 3]=ReadSignatureByte(LOTNUM3);
+ b[ 4]=ReadSignatureByte(LOTNUM4);
+ b[ 5]=ReadSignatureByte(LOTNUM5);
+
+}
+
diff --git a/src/leds.h b/src/usb.h
similarity index 53%
rename from src/leds.h
rename to src/usb.h
index 7eae01223432699420e1be3a79cc27ef27e8fa42..13eadcb0690a3b611037a6e4e8653bef2e5188bf 100644
--- a/src/leds.h
+++ b/src/usb.h
@@ -1,17 +1,19 @@
//
-// leds.h
+// usb.h
// dstat-firmware
//
// Created by Michael Dryden on 2017-05-04.
// Copyright © 2017 Michael Dryden. All rights reserved.
//
-#ifndef leds_h
-#define leds_h
+#ifndef usb_h
+#define usb_h
#include <stdio.h>
+#include "config/conf_usb.h"
void my_callback_cdc_set_rts(uint8_t port, uint8_t b_enable);
+uint8_t serial_number[USB_DEVICE_GET_SERIAL_NAME_LENGTH];
+void init_build_usb_serial_number(void);
-
-#endif /* leds_h */
+#endif /* usb_h */