Added software jump to bootloader for DFU, under settings.

DSTAT/src/settings.c

@@ -9,16 +9,23 @@
 
 #include "settings.h"
 #include "config/conf_board.h"
+#include <udc.h>
 
 #define SETTINGS_EEPROM_PARAM_PAGE 0
 #define SETTINGS_EEPROM_OFFSET_ADDR SETTINGS_EEPROM_PARAM_PAGE * EEPROM_PAGE_SIZE
 
+void update_firmware(void);
+
 void settings_handler(char command){
     switch (command){
         case 'D': //Reset defaults
             settings_restore_defaults();
             break;
             
+        case 'F': //Update Firmware
+            update_firmware();
+            break;
+            
         case 'R': //Read settings from EEPROM
             settings_read_eeprom();
             break;
@@ -43,6 +50,19 @@ void settings_handler(char command){
     }
 }
 
+void(* start_bootloader)(void) = (void (*)(void))(BOOT_SECTION_START/2+0x1FC/2);
+
+void update_firmware(void){
+    /**
+     * Jumps to bootloader to do firmware upgrade
+     */
+    udc_stop(); // Disable USB Stack
+    cli(); // Disable Interrupts
+    
+    EIND = BOOT_SECTION_START>>17;
+    start_bootloader();
+}
+
 void settings_read_eeprom(void){
     printf("#INFO: SETTINGS\n\r");
     nvm_eeprom_read_buffer(SETTINGS_EEPROM_OFFSET_ADDR, &settings, EEPROM_PAGE_SIZE);