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27 lines
2.0 KiB
27 lines
2.0 KiB
/** \file |
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* |
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* This file contains special DoxyGen information for the generation of the main page and other special |
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* documentation pages. It is not a project source file. |
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*/ |
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/** \page Page_ProgrammingApps Programming an Application into a USB AVR |
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* |
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* Once you have built an application, you will need a way to program in the resulting ".HEX" file (and, if your |
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* application uses EEPROM variables with initial values, also a ".EEP" file) into your USB AVR. Normally, the |
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* reprogramming of an AVR device must be performed using a special piece of programming hardware, through one of the |
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* supported AVR programming protocols - ISP, HVSP, HVPP, JTAG or dW. This can be done through a custom programmer, |
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* a third party programmer, or an official Atmel AVR tool - for more information, see the Atmel.com website. |
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* |
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* Alternatively, you can use the bootloader. From the Atmel factory, each USB AVR comes preloaded with the Atmel |
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* DFU (Device Firmware Update) class bootloader, a small piece of AVR firmware which allows the remainder of the |
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* AVR to be programmed through a non-standard interface such as the serial USART port, SPI, or (in this case) USB. |
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* Bootloaders have the advantage of not requiring any special hardware for programming, and cannot usually be erased |
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* or broken without an external programming device. They have disadvantages however; they cannot change the fuses of |
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* the AVR (special configuration settings that control the operation of the chip itself) and a small portion of the |
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* AVR's FLASH program memory must be reserved to contain the bootloader firmware, and thus cannot be used by the |
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* loaded application. Atmel's DFU bootloader is either 4KB (for the smaller USB AVRs) or 8KB (for the larger USB AVRs). |
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* |
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* If you wish to use the DFU bootloader to program in your application, refer to your DFU programmer's documentation. |
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* Atmel provides a free utility called FLIP which is USB AVR compatible, and an open source (Linux compatible) |
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* alternative exists called "dfu-programmer". |
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*/ |