/** \file * * This file contains special DoxyGen information for the generation of the main page and other special * documentation pages. It is not a project source file. */ /** \mainpage CDC Class USB AVR Bootloader * * \section Sec_Compat Demo Compatibility: * * The following list indicates what microcontrollers are compatible with this demo. * * - Series 7 USB AVRs (AT90USBxxx7) * - Series 6 USB AVRs (AT90USBxxx6) * - Series 4 USB AVRs (ATMEGAxxU4) * - Series 2 USB AVRs (AT90USBxx2, ATMEGAxxU2) * * \section Sec_Info USB Information: * * The following table gives a rundown of the USB utilization of this demo. * * * * * * * * * * * * * * * * * * * * * * *
USB Mode:Device
USB Class:Communications Device Class (CDC)
USB Subclass:Abstract Control Model (ACM)
Relevant Standards:USBIF CDC Class Standard
Usable Speeds:Full Speed Mode
* * \section Sec_Description Project Description: * * 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. * * When the bootloader is running, the board's LED(s) will flash at regular intervals to distinguish the * bootloader from the normal user application. * * \section Sec_Installation Driver Installation * * After running this bootloader for the first time on a new computer, you will need to supply the .INF * file located in this bootloader project's directory as the device's driver when running under Windows. * This will enable Windows to use its inbuilt CDC drivers, negating the need for custom drivers for the * device. Other Operating Systems should automatically use their own inbuilt CDC-ACM drivers. * * \section Sec_HostApp Host Controller Application * * This bootloader is compatible with the open source application AVRDUDE, Atmel's AVRPROG, or other * applications implementing the AVR109 protocol, which is documented on the Atmel website as an application * note. * * \subsection SSec_AVRDude AVRDUDE (Windows, Mac, Linux) * * AVRDude is a free, cross-platform and open source command line programmer for Atmel and third party AVR * programmers. It is available on the the Windows platform as part of the "WinAVR" package, or on other systems * either from a build from the official source code, or in many distributions as a precompiled binary package. * * To load a new HEX file with AVRDude, specify "AVR109" as the programmer, with the allocated COM port. On Windows * platforms this will be a COMx port name: * \code * avrdude -c AVR109 -p at90usb1287 -P COM0 -U flash:w:Mouse.hex * \endcode * * On Linux systems, this will typically be a /dev/ttyACMx port name: * \code * avrdude -c AVR109 -p at90usb1287 -P /dev/ttyACM0 -U flash:w:Mouse.hex * \endcode * * Refer to the AVRDude project documentation for additional usage instructions. * * \section Sec_API User Application API * * Several user application functions for FLASH and other special memory area manipulations are exposed by the bootloader, * allowing the user application to call into the bootloader at runtime to read and write FLASH data. * * By default, the bootloader API jump table is located 32 bytes from the end of the device's FLASH memory, and follows the * following layout: * * \code * #define BOOTLOADER_API_START(Index) (void*)(((FLASHEND - 32) + (2 * Index)) / 2) * void (*BootloaderAPI_ErasePage)(uint32_t Address) = BOOTLOADER_API_START(0); * void (*BootloaderAPI_WritePage)(uint32_t Address) = BOOTLOADER_API_START(1); * void (*BootloaderAPI_FillWord)(uint32_t Address, uint16_t Word) = BOOTLOADER_API_START(2); * uint8_t (*BootloaderAPI_ReadSignature)(uint16_t Address) = BOOTLOADER_API_START(3); * uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address) = BOOTLOADER_API_START(4); * uint8_t (*BootloaderAPI_ReadLock)(void) = BOOTLOADER_API_START(5); * void (*BootloaderAPI_WriteLock)(uint8_t LockBits) = BOOTLOADER_API_START(6); * * #define BOOTLOADER_SIG_START (FLASHEND - 32) * #define BOOTLOADER_SIGNATURE 0xDCFB * \endcode * * Bootloaders reporting a device release revision number of 1.00 or greater are bootloader API enabled. From the application * the API support of the bootloader can be detected by reading the FLASH memory bytes located at address \c BOOTLOADER_SIG_START * and comparing them to the value \c BOOTLOADER_SIGNATURE. * * \section Sec_Options Project Options * * The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value. * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Define Name:Location:Description:
NO_BLOCK_SUPPORTMakefile LUFA_OPTSDefine to disable memory block read/write support in the bootloader, requiring all reads and writes to be made * using the byte-level commands.
NO_EEPROM_BYTE_SUPPORTMakefile LUFA_OPTSDefine to disable EEPROM memory byte read/write support in the bootloader, requiring all EEPROM reads and writes * to be made using the block-level commands.
NO_FLASH_BYTE_SUPPORTMakefile LUFA_OPTSDefine to disable FLASH memory byte read/write support in the bootloader, requiring all FLASH reads and writes * to be made using the block-level commands.
NO_LOCK_BYTE_WRITE_SUPPORTMakefile LUFA_OPTSDefine to disable lock byte write support in the bootloader, preventing the lock bits from being set programmatically.
*/