/*\r
LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
+ Copyright (C) Dean Camera, 2010.\r
\r
dean [at] fourwalledcubicle [dot] com\r
www.fourwalledcubicle.com\r
*/\r
\r
/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
\r
Permission to use, copy, modify, distribute, and sell this \r
software and its documentation for any purpose is hereby granted\r
uint32_t CurrAddress;\r
\r
/** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run\r
- * via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application\r
- * jumped to via an indirect jump to location 0x0000.\r
+ * via a watchdog reset. When cleared the bootloader will exit, starting the watchdog and entering an infinite\r
+ * loop until the AVR restarts and the application runs.\r
*/\r
bool RunBootloader = true;\r
\r
/* Setup hardware required for the bootloader */\r
SetupHardware();\r
\r
+ /* Enable global interrupts so that the USB stack can function */\r
+ sei();\r
+\r
while (RunBootloader)\r
{\r
CDC_Task();\r
USB_USBTask();\r
}\r
\r
- /* Reset all configured hardware to their default states for the user app */\r
- ResetHardware();\r
+ /* Disconnect from the host - USB interface will be reset later along with the AVR */\r
+ USB_Detach();\r
+\r
+ /* Enable the watchdog and force a timeout to reset the AVR */\r
+ wdt_enable(WDTO_250MS);\r
\r
- /* Start the user application */\r
- AppPtr_t AppStartPtr = (AppPtr_t)0x0000;\r
- AppStartPtr(); \r
+ for (;;);\r
}\r
\r
/** Configures all hardware required for the bootloader. */\r
USB_Init();\r
}\r
\r
-/** Resets all configured hardware required for the bootloader back to their original states. */\r
-void ResetHardware(void)\r
-{\r
- /* Shut down the USB subsystem */\r
- USB_ShutDown();\r
- \r
- /* Relocate the interrupt vector table back to the application section */\r
- MCUCR = (1 << IVCE);\r
- MCUCR = 0;\r
-\r
- /* Re-enable RWW section */\r
- boot_rww_enable();\r
-}\r
-\r
/** Event handler for the USB_ConfigurationChanged event. This configures the device's endpoints ready\r
* to relay data to and from the attached USB host.\r
*/\r