Add branch for the conversion of demos to use standard C header files for...

Add branch for the conversion of demos to use standard C header files for configuration, rather than makefile defined macros.

Bootloaders/CDC/BootloaderCDC.c

@@ -56,6 +56,28 @@ static uint32_t CurrAddress;
  */
 static bool RunBootloader = true;
 
+/** Magic lock for forced application start. If the HWBE fuse is programmed and BOOTRST is unprogrammed, the bootloader
+ *  will start if the /HWB line of the AVR is held low and the system is reset. However, if the /HWB line is still held
+ *  low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
+ *  \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
+ */
+uint32_t MagicBootKey ATTR_NO_INIT;
+
+
+/** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
+ *  start key has been loaded into \ref MagicBootKey. If the bootloader started via the watchdog and the key is valid,
+ *  this will force the user application to start via a software jump.
+ */
+void Application_Jump_Check(void)
+{
+	/* If the reset source was the bootloader and the key is correct, clear it and jump to the application */
+	if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+	{
+		MagicBootKey = 0;
+		// cppcheck-suppress constStatement
+		((void (*)(void))0x0000)();
+	}
+}
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
  *  runs the bootloader processing routine until instructed to soft-exit, or hard-reset via the watchdog to start
@@ -80,6 +102,9 @@ int main(void)
 
 	/* Disconnect from the host - USB interface will be reset later along with the AVR */
 	USB_Detach();
+	
+	/* Unlock the forced application start mode of the bootloader if it is restarted */
+	MagicBootKey = MAGIC_BOOT_KEY;
 
 	/* Enable the watchdog and force a timeout to reset the AVR */
 	wdt_enable(WDTO_250MS);
@@ -122,17 +147,12 @@ ISR(TIMER1_OVF_vect, ISR_BLOCK)
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
 	/* Setup CDC Notification, Rx and Tx Endpoints */
-	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-	                           ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPADDR, EP_TYPE_INTERRUPT,
+	                           CDC_NOTIFICATION_EPSIZE, 1);
 
-	Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
-	                           ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_TX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
 
-	Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
-	                           ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_RX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
 }
 
 /** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
@@ -303,7 +323,7 @@ static void ReadWriteMemoryBlock(const uint8_t Command)
 static uint8_t FetchNextCommandByte(void)
 {
 	/* Select the OUT endpoint so that the next data byte can be read */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* If OUT endpoint empty, clear it and wait for the next packet from the host */
 	while (!(Endpoint_IsReadWriteAllowed()))
@@ -329,7 +349,7 @@ static uint8_t FetchNextCommandByte(void)
 static void WriteNextResponseByte(const uint8_t Response)
 {
 	/* Select the IN endpoint so that the next data byte can be written */
-	Endpoint_SelectEndpoint(CDC_TX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_TX_EPADDR);
 
 	/* If IN endpoint full, clear it and wait until ready for the next packet to the host */
 	if (!(Endpoint_IsReadWriteAllowed()))
@@ -353,7 +373,7 @@ static void WriteNextResponseByte(const uint8_t Response)
 static void CDC_Task(void)
 {
 	/* Select the OUT endpoint */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* Check if endpoint has a command in it sent from the host */
 	if (!(Endpoint_IsOUTReceived()))
@@ -549,7 +569,7 @@ static void CDC_Task(void)
 	}
 
 	/* Select the IN endpoint */
-	Endpoint_SelectEndpoint(CDC_TX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_TX_EPADDR);
 
 	/* Remember if the endpoint is completely full before clearing it */
 	bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed());
@@ -577,7 +597,7 @@ static void CDC_Task(void)
 	}
 
 	/* Select the OUT endpoint */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* Acknowledge the command from the host */
 	Endpoint_ClearOUT();

Bootloaders/CDC/BootloaderCDC.h

@@ -67,6 +67,9 @@
 		/** Eight character bootloader firmware identifier reported to the host when requested */
 		#define SOFTWARE_IDENTIFIER          "LUFACDC"
 
+		/** Magic bootloader key to unlock forced application start mode. */
+		#define MAGIC_BOOT_KEY            0xDC42CACA
+		
 	/* Type Defines: */
 		/** Type define for a non-returning pointer to the start of the loaded application in flash memory. */
 		typedef void (*AppPtr_t)(void) ATTR_NO_RETURN;
@@ -75,6 +78,8 @@
 		static void CDC_Task(void);
 		static void SetupHardware(void);
 
+		void Application_Jump_Check(void) ATTR_INIT_SECTION(3);
+
 		void EVENT_USB_Device_ConfigurationChanged(void);
 
 		#if defined(INCLUDE_FROM_BOOTLOADERCDC_C) || defined(__DOXYGEN__)

Bootloaders/CDC/BootloaderCDC.txt

@@ -47,9 +47,9 @@
  *  This bootloader enumerates to the host as a CDC Class device (virtual serial port), allowing for AVR109
  *  protocol compatible programming software to load firmware onto the AVR.
  *
- *  Out of the box this bootloader builds for the USB1287, and will fit into 4KB of bootloader space. If
- *  you wish to enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU
- *  values in the accompanying makefile.
+ *  Out of the box this bootloader builds for the AT90USB1287 with an 8KB bootloader section size, and will fit
+ *  into 4KB of bootloader space. If you wish to alter this size and/or change the AVR model, you will need to
+ *  edit the MCU, FLASH_SIZE_KB and BOOT_SECTION_SIZE_KB values in the accompanying makefile.
  *
  *  When the bootloader is running, the board's LED(s) will flash at regular intervals to distinguish the
  *  bootloader from the normal user application.

Bootloaders/CDC/Config/AppConfig.h

+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief LUFA Library Configuration Header File
+ *
+ *  This is a header file which is be used to configure LUFA's
+ *  compile time options, as an alternative to the compile time
+ *  constants supplied through a makefile.
+ *
+ *  For information on what each token does, refer to the LUFA
+ *  manual section "Summary of Compile Tokens".
+ */
+
+#ifndef _APP_CONFIG_H_
+#define _APP_CONFIG_H_
+
+	#define NO_BLOCK_SUPPORT
+	#define NO_EEPROM_BYTE_SUPPORT
+	#define NO_FLASH_BYTE_SUPPORT
+	#define NO_LOCK_BYTE_WRITE_SUPPORT
+
+#endif
\ No newline at end of file

Bootloaders/CDC/Config/LUFAConfig.h

+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2012.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief LUFA Library Configuration Header File
+ *
+ *  This is a header file which is be used to configure LUFA's
+ *  compile time options, as an alternative to the compile time
+ *  constants supplied through a makefile.
+ *
+ *  For information on what each token does, refer to the LUFA
+ *  manual section "Summary of Compile Tokens".
+ */
+
+#ifndef _LUFA_CONFIG_H_
+#define _LUFA_CONFIG_H_
+
+	#if (ARCH == ARCH_AVR8)
+
+		/* Non-USB Related Configuration Tokens: */
+//		#define DISABLE_TERMINAL_CODES
+
+		/* USB Class Driver Related Tokens: */
+//		#define HID_HOST_BOOT_PROTOCOL_ONLY
+//		#define HID_STATETABLE_STACK_DEPTH       {Insert Value Here}
+//		#define HID_USAGE_STACK_DEPTH            {Insert Value Here}
+//		#define HID_MAX_COLLECTIONS              {Insert Value Here}
+//		#define HID_MAX_REPORTITEMS              {Insert Value Here}
+//		#define HID_MAX_REPORT_IDS               {Insert Value Here}
+//		#define NO_CLASS_DRIVER_AUTOFLUSH
+
+		/* General USB Driver Related Tokens: */
+		#define ORDERED_EP_CONFIG
+		#define USE_STATIC_OPTIONS               (USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)
+		#define USB_DEVICE_ONLY
+//		#define USB_HOST_ONLY
+//		#define USB_STREAM_TIMEOUT_MS            {Insert Value Here}
+//		#define NO_LIMITED_CONTROLLER_CONNECT
+		#define NO_SOF_EVENTS
+
+		/* USB Device Mode Driver Related Tokens: */
+		#define USE_RAM_DESCRIPTORS
+//		#define USE_FLASH_DESCRIPTORS
+//		#define USE_EEPROM_DESCRIPTORS
+		#define NO_INTERNAL_SERIAL
+		#define FIXED_CONTROL_ENDPOINT_SIZE      8
+		#define DEVICE_STATE_AS_GPIOR            0
+		#define FIXED_NUM_CONFIGURATIONS         1
+//		#define CONTROL_ONLY_DEVICE
+//		#define INTERRUPT_CONTROL_ENDPOINT
+		#define NO_DEVICE_REMOTE_WAKEUP
+		#define NO_DEVICE_SELF_POWER
+
+		/* USB Host Mode Driver Related Tokens: */
+//		#define HOST_STATE_AS_GPIOR              {Insert Value Here}
+//		#define USB_HOST_TIMEOUT_MS              {Insert Value Here}
+//		#define HOST_DEVICE_SETTLE_DELAY_MS	     {Insert Value Here}
+//      #define NO_AUTO_VBUS_MANAGEMENT
+//      #define INVERTED_VBUS_ENABLE_LINE
+
+	#else
+
+		#error Unsupported architecture for this LUFA configuration file.
+
+	#endif
+#endif

Bootloaders/CDC/Descriptors.c

@@ -131,7 +131,7 @@ const USB_Descriptor_Configuration_t ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DIR_IN | CDC_NOTIFICATION_EPNUM),
+			.EndpointAddress        = CDC_NOTIFICATION_EPADDR,
 			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = CDC_NOTIFICATION_EPSIZE,
 			.PollingIntervalMS      = 0xFF
@@ -157,20 +157,20 @@ const USB_Descriptor_Configuration_t ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DIR_OUT | CDC_RX_EPNUM),
+			.EndpointAddress        = CDC_RX_EPADDR,
 			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = CDC_TXRX_EPSIZE,
-			.PollingIntervalMS      = 0x01
+			.PollingIntervalMS      = 0x05
 		},
 
 	.CDC_DataInEndpoint =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DIR_IN | CDC_TX_EPNUM),
+			.EndpointAddress        = CDC_TX_EPADDR,
 			.Attributes             = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = CDC_TXRX_EPSIZE,
-			.PollingIntervalMS      = 0x01
+			.PollingIntervalMS      = 0x05
 		}
 };
 

Bootloaders/CDC/Descriptors.h

@@ -92,14 +92,14 @@
 			#error The selected AVR part is not currently supported by this bootloader.
 		#endif
 
-		/** Endpoint number for the CDC control interface event notification endpoint. */
-		#define CDC_NOTIFICATION_EPNUM         2
+		/** Endpoint address for the CDC control interface event notification endpoint. */
+		#define CDC_NOTIFICATION_EPADDR        (ENDPOINT_DIR_IN | 2)
 
-		/** Endpoint number for the CDC data interface TX (data IN) endpoint. */
-		#define CDC_TX_EPNUM                   3
+		/** Endpoint address for the CDC data interface TX (data IN) endpoint. */
+		#define CDC_TX_EPADDR                  (ENDPOINT_DIR_IN | 3)
 
-		/** Endpoint number for the CDC data interface RX (data OUT) endpoint. */
-		#define CDC_RX_EPNUM                   4
+		/** Endpoint address for the CDC data interface RX (data OUT) endpoint. */
+		#define CDC_RX_EPADDR                  (ENDPOINT_DIR_OUT | 4)
 
 		/** Size of the CDC data interface TX and RX data endpoint banks, in bytes. */
 		#define CDC_TXRX_EPSIZE                16

Bootloaders/CDC/makefile

@@ -95,7 +95,7 @@ F_USB = $(F_CPU)
 # Note that the bootloader size and start address given in AVRStudio is in words and not
 # bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
 FLASH_SIZE_KB        = 128
-BOOT_SECTION_SIZE_KB = 4
+BOOT_SECTION_SIZE_KB = 8
 
 
 # Formulas used to calculate the starting address of the Bootloader section, and the User Application
@@ -124,22 +124,7 @@ LUFA_PATH = ../..
 
 
 # LUFA library compile-time options and predefined tokens
-LUFA_OPTS  = -D USB_DEVICE_ONLY
-LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
-LUFA_OPTS += -D ORDERED_EP_CONFIG
-LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8
-LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
-LUFA_OPTS += -D USE_RAM_DESCRIPTORS
-LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
-LUFA_OPTS += -D NO_INTERNAL_SERIAL
-LUFA_OPTS += -D NO_DEVICE_SELF_POWER
-LUFA_OPTS += -D NO_DEVICE_REMOTE_WAKEUP
-LUFA_OPTS += -D NO_SOF_EVENTS
-
-#LUFA_OPTS += -D NO_BLOCK_SUPPORT
-#LUFA_OPTS += -D NO_EEPROM_BYTE_SUPPORT
-#LUFA_OPTS += -D NO_FLASH_BYTE_SUPPORT
-#LUFA_OPTS += -D NO_LOCK_BYTE_WRITE_SUPPORT
+LUFA_OPTS  = -D USE_LUFA_CONFIG_HEADER
 
 
 # Create the LUFA source path variables by including the LUFA root makefile
@@ -184,7 +169,7 @@ DEBUG = dwarf-2
 #     Each directory must be seperated by a space.
 #     Use forward slashes for directory separators.
 #     For a directory that has spaces, enclose it in quotes.
-EXTRAINCDIRS = $(LUFA_PATH)/
+EXTRAINCDIRS = $(LUFA_PATH)/ Config/
 
 
 # Compiler flag to set the C Standard level.

Bootloaders/DFU/BootloaderDFU.c

@@ -92,6 +92,27 @@ static uint16_t StartAddr = 0x0000;
  */
 static uint16_t EndAddr = 0x0000;
 
+/** Magic lock for forced application start. If the HWBE fuse is programmed and BOOTRST is unprogrammed, the bootloader
+ *  will start if the /HWB line of the AVR is held low and the system is reset. However, if the /HWB line is still held
+ *  low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
+ *  \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
+ */
+uint32_t MagicBootKey ATTR_NO_INIT;
+
+
+/** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
+ *  start key has been loaded into \ref MagicBootKey. If the bootloader started via the watchdog and the key is valid,
+ *  this will force the user application to start via a software jump.
+ */
+void Application_Jump_Check(void)
+{
+	// If the reset source was the bootloader and the key is correct, clear it and jump to the application
+	if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+	{
+		MagicBootKey = 0;
+		AppStartPtr();
+	}
+}
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
  *  runs the bootloader processing routine until instructed to soft-exit, or hard-reset via the watchdog to start
@@ -695,6 +716,9 @@ static void ProcessWriteCommand(void)
 		{
 			if (SentCommand.Data[1] == 0x00)                                   // Start via watchdog
 			{
+				/* Unlock the forced application start mode of the bootloader if it is restarted */
+				MagicBootKey = MAGIC_BOOT_KEY;
+
 				/* Start the watchdog to reset the AVR once the communications are finalized */
 				wdt_enable(WDTO_250MS);
 			}

Bootloaders/DFU/BootloaderDFU.h

@@ -66,6 +66,9 @@
 
 		/** Minor bootloader version number. */
 		#define BOOTLOADER_VERSION_REV   0
+		
+		/** Magic bootloader key to unlock forced application start mode. */
+		#define MAGIC_BOOT_KEY            0xDC42CACA
 
 		/** Complete bootloader version number expressed as a packed byte, constructed from the
 		 *  two individual bootloader version macros.
@@ -206,6 +209,8 @@
 			static void ProcessWriteCommand(void);
 			static void ProcessReadCommand(void);
 		#endif
+		
+		void Application_Jump_Check(void) ATTR_INIT_SECTION(3);
 
 #endif
 

Bootloaders/DFU/BootloaderDFU.txt

@@ -47,9 +47,9 @@
  *  This bootloader enumerates to the host as a DFU Class device, allowing for DFU-compatible programming
  *  software to load firmware onto the AVR.
  *
- *  Out of the box this bootloader builds for the USB1287, and should fit into 4KB of bootloader space. If
- *  you wish to enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU
- *  values in the accompanying makefile.
+ *  Out of the box this bootloader builds for the AT90USB1287 with an 8KB bootloader section size, and will fit
+ *  into 4KB of bootloader space. If you wish to alter this size and/or change the AVR model, you will need to
+ *  edit the MCU, FLASH_SIZE_KB and BOOT_SECTION_SIZE_KB values in the accompanying makefile.
  *
  *  When the bootloader is running, the board's LED(s) will flash at regular intervals to distinguish the
  *  bootloader from the normal user application.

Bootloaders/DFU/Descriptors.c

@@ -111,7 +111,7 @@ const USB_Descriptor_Configuration_t ConfigurationDescriptor =
 			.DetachTimeout          = 0x0000,
 			.TransferSize           = 0x0C00,
 
-			.DFUSpecification       = VERSION_BCD(01.01)
+			.DFUSpecification       = VERSION_BCD(01.10)
 		}
 };
 

Bootloaders/DFU/makefile

@@ -95,7 +95,7 @@ F_USB = $(F_CPU)
 # Note that the bootloader size and start address given in AVRStudio is in words and not
 # bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
 FLASH_SIZE_KB        = 128
-BOOT_SECTION_SIZE_KB = 4
+BOOT_SECTION_SIZE_KB = 8
 
 
 # Formulas used to calculate the starting address of the Bootloader section, and the User Application

Bootloaders/HID/BootloaderHID.c

@@ -41,6 +41,29 @@
  */
 static bool RunBootloader = true;
 
+/** Magic lock for forced application start. If the HWBE fuse is programmed and BOOTRST is unprogrammed, the bootloader
+ *  will start if the /HWB line of the AVR is held low and the system is reset. However, if the /HWB line is still held
+ *  low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
+ *  \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
+ */
+uint32_t MagicBootKey ATTR_NO_INIT;
+
+
+/** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
+ *  start key has been loaded into \ref MagicBootKey. If the bootloader started via the watchdog and the key is valid,
+ *  this will force the user application to start via a software jump.
+ */
+void Application_Jump_Check(void)
+{
+	/* If the reset source was the bootloader and the key is correct, clear it and jump to the application */
+	if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+	{
+		MagicBootKey = 0;
+		// cppcheck-suppress constStatement
+		((void (*)(void))0x0000)();
+	}
+}
+
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
  *  runs the bootloader processing routine until instructed to soft-exit.
  */
@@ -58,6 +81,9 @@ int main(void)
 	/* Disconnect from the host - USB interface will be reset later along with the AVR */
 	USB_Detach();
 
+	/* Unlock the forced application start mode of the bootloader if it is restarted */
+	MagicBootKey = MAGIC_BOOT_KEY;
+
 	/* Enable the watchdog and force a timeout to reset the AVR */
 	wdt_enable(WDTO_250MS);
 
@@ -85,9 +111,7 @@ static void SetupHardware(void)
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
 	/* Setup HID Report Endpoint */
-	Endpoint_ConfigureEndpoint(HID_IN_EPNUM, EP_TYPE_INTERRUPT,
-		                       ENDPOINT_DIR_IN, HID_IN_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(HID_IN_EPADDR, EP_TYPE_INTERRUPT, HID_IN_EPSIZE, 1);
 }
 
 /** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to

Bootloaders/HID/BootloaderHID.h

@@ -52,9 +52,14 @@
 		/** Bootloader special address to start the user application */
 		#define COMMAND_STARTAPPLICATION   0xFFFF
 
+		/** Magic bootloader key to unlock forced application start mode. */
+		#define MAGIC_BOOT_KEY            0xDC42CACA
+		
 	/* Function Prototypes: */
 		static void SetupHardware(void);
 
+		void Application_Jump_Check(void) ATTR_INIT_SECTION(3);
+		
 		void EVENT_USB_Device_ConfigurationChanged(void);
 		void EVENT_USB_Device_UnhandledControlRequest(void);
 

Bootloaders/HID/BootloaderHID.txt

@@ -51,10 +51,10 @@
  *  from PJRC (used with permission). This bootloader is deliberatley non-compatible with the properietary PJRC
  *  HalfKay bootloader GUI; only the command line interface software accompanying this bootloader will work with it.
  *  
- *  Out of the box this bootloader builds for the USB1287, and will fit into 2KB of bootloader space for the
- *  Series 2 USB AVRs (ATMEGAxxU2, AT90USBxx2) or 4KB of bootloader space for all other models. If you wish to
- *  enlarge this space and/or change the AVR model, you will need to edit the BOOT_START and MCU values in the
- *  accompanying makefile.
+ *  Out of the box this bootloader builds for the AT90USB1287 with an 8KB bootloader section size, and will fit
+ *  into 2KB of bootloader space for the Series 2 USB AVRs (ATMEGAxxU2, AT90USBxx2) or 4KB of bootloader space for
+ *  all other models. If you wish to alter this size and/or change the AVR model, you will need to edit the MCU,
+ *  FLASH_SIZE_KB and BOOT_SECTION_SIZE_KB values in the accompanying makefile.
  *
  *  \section Sec_Installation Driver Installation
  *

Bootloaders/HID/Descriptors.c

@@ -137,10 +137,10 @@ const USB_Descriptor_Configuration_t ConfigurationDescriptor =
 		{
 			.Header                 = {.Size = sizeof(USB_Descriptor_Endpoint_t), .Type = DTYPE_Endpoint},
 
-			.EndpointAddress        = (ENDPOINT_DIR_IN | HID_IN_EPNUM),
+			.EndpointAddress        = HID_IN_EPADDR,
 			.Attributes             = (EP_TYPE_INTERRUPT | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),
 			.EndpointSize           = HID_IN_EPSIZE,
-			.PollingIntervalMS      = 0x01
+			.PollingIntervalMS      = 0x05
 		},
 };
 

Bootloaders/HID/Descriptors.h

@@ -55,8 +55,8 @@
 		} USB_Descriptor_Configuration_t;
 
 	/* Macros: */
-		/** Endpoint number of the HID data IN endpoint. */
-		#define HID_IN_EPNUM                 1
+		/** Endpoint address of the HID data IN endpoint. */
+		#define HID_IN_EPADDR                (ENDPOINT_DIR_IN | 1)
 
 		/** Size in bytes of the HID reporting IN endpoint. */
 		#define HID_IN_EPSIZE                64

Bootloaders/HID/HostLoaderApp/hid_bootloader_cli.c

@@ -970,13 +970,9 @@ void parse_options(int argc, char **argv)
 			} else if (strncmp(arg, "-mmcu=", 6) == 0) {
 				arg += 6;
 
-				uint8_t valid_prefix = 0;
-
 				if (strncmp(arg, "at90usb", 7) == 0) {
-					valid_prefix = 1;
 					arg += 7;
 				} else if (strncmp(arg, "atmega", 6) == 0) {
-					valid_prefix = 1;
 					arg += 6;
 				} else {
 					die("Unknown MCU type\n");

Bootloaders/HID/makefile

@@ -95,7 +95,7 @@ F_USB = $(F_CPU)
 # Note that the bootloader size and start address given in AVRStudio is in words and not
 # bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
 FLASH_SIZE_KB        = 128
-BOOT_SECTION_SIZE_KB = 4
+BOOT_SECTION_SIZE_KB = 8
 
 
 # Formulas used to calculate the starting address of the Bootloader section. These formulas