191 lines
5.5 KiB
Markdown
191 lines
5.5 KiB
Markdown
DMBS - Dean's Makefile Build System
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===================================
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Module: AVRDUDE
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-----------------
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The AVRDUDE module provides build targets for use with the official
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open source `AVRDUDE` programmer utility, for the reprogramming of Atmel devices
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using a wide variety of official and non-official programming devices and
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bootloaders.
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## Importing This Module into a Makefile:
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To use this module in your application makefile, add the following code to your
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makefile:
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include $(DMBS_PATH)/avrdude.mk
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## Prerequisites:
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This module requires the `avrdude` utility to be available in your
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system's `PATH` variable. The `avrdude` utility is distributed on the project's
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[official site](https://savannah.nongnu.org/projects/avrdude) but is also
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made available in many *nix operating system's package managers.
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## Build Targets:
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The following targets are supported by this module:
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<table>
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<tbody>
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<tr>
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<td>avrdude-lfuse</td>
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<td>Program the device low fuse. Requires AVRDUDE_LFUSE variable set.</td>
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</tr>
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<tr>
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<td>avrdude-hfuse</td>
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<td>Program the device high fuse. Requires AVRDUDE_HFUSE variable set.</td>
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</tr>
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<tr>
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<td>avrdude-efuse</td>
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<td>Program the device extended fuse. Requires AVRDUDE_EFUSE variable set.</td>
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</tr>
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<tr>
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<td>avrdude-lock</td>
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<td>Program the device lock bits. Requires AVRDUDE_LOCK variable set.</td>
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</tr>
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<tr>
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<td>avrdude-fuses</td>
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<td>
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Program the device fuses (lfuse, hfuse, efuse, lock bits).<br>
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Requires AVRDUDE_LFUSE, AVRDUDE_HFUSE and AVRDUDE_LOCK variable set. AVRDUDE_EFUSE is optional.
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</td>
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</tr>
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<tr>
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<td>avrdude</td>
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<td>Program the device FLASH memory with the application's executable data.</td>
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</tr>
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<tr>
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<td>avrdude-ee</td>
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<td>Program the device EEPROM memory with the application's EEPROM data.</td>
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</tr>
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<tr>
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<td>avrdude-all</td>
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<td>Same as avrdude + avrdude-fuses.</td>
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</tr>
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<tr>
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<td>avrdude-all-ee</td>
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<td>Same as avrdude + avrdude-ee + avrdude-fuses.</td>
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</tr>
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</tbody>
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</table>
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## Mandatory Variables:
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The following variables must be defined (with a `NAME = VALUE` syntax, one
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variable per line) in the user makefile to be able to use this module:
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<table>
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<tbody>
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<tr>
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<td>MCU</td>
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<td>Name of the Atmel processor model (e.g. `at90usb1287`).</td>
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</tr>
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<tr>
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<td>TARGET</td>
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<td>Name of the application output file prefix (e.g. `TestApplication`).</td>
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</tr>
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</tbody>
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</table>
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## Optional Variables:
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The following variables may be defined (with a `NAME = VALUE` syntax, one
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variable per line) in the user makefile. If not specified, a default value will
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be assumed.
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<table>
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<tbody>
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<tr>
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<td>AVRDUDE_MCU</td>
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<td>Override the `MCU` variable for `avrdude`. On some controllers, `avrdude` expects another spelling than the compiler needs. Default is `MCU`.</td>
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</tr>
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<tr>
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<td>AVRDUDE_PROGRAMMER</td>
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<td>Name of the programmer/debugger tool or bootloader to communicate with (e.g. `jtagicemkii`). Default is `jtagicemkii`.</td>
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</tr>
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<tr>
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<td>AVRDUDE_PORT</td>
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<td>Name of the communication port to use when when programming with a serially connected tool (e.g. `COM2`). Default is `usb`.</td>
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</tr>
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<tr>
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<td>AVRDUDE_FLAGS</td>
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<td>Additional flags to pass to `avrdude` when invoking the tool. Default is empty (no additional flags).</td>
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</tr>
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<tr>
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<td>AVRDUDE_MEMORY</td>
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<td>Memory space to program when executing the `avrdude` target (e.g. 'application` for an XMEGA device). Default is `flash`.</td>
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</tr>
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<tr>
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<td>AVRDUDE_BAUD</td>
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<td>Baud rate to use when executing the `avrdude` target (e.g. '115200` for an Optiboot device). Default is empty.</td>
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</tr>
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<tr>
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<td>AVRDUDE_BITCLK</td>
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<td>ISP bit clock period in microseconds to use when executing the `avrdude` target (format: float). Must be minimum 4x longer than MCU clock period. Default is 1 us.</td>
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</tr>
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<tr>
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<td>AVRDUDE_HFUSE</td>
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<td>Fuse setting to use when executing the `avrdude-hfuse` target (format: 0x??). Default is empty.</td>
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</tr>
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<tr>
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<td>AVRDUDE_EFUSE</td>
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<td>Fuse setting to use when executing the `avrdude-efuse` target (format: 0x??). Default is empty.</td>
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</tr>
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<tr>
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<td>AVRDUDE_LFUSE</td>
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<td>Fuse setting to use when executing the `avrdude-lfuse` target (format: 0x??). Default is empty.</td>
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</tr>
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<tr>
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<td>AVRDUDE_LOCK</td>
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<td>Bit bits setting to use when executing the `avrdude-lock` target (format: 0x??). Default is empty.</td>
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</tr>
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</tbody>
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</table>
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## Provided Variables:
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The following variables may be referenced in a user makefile (via `$(NAME)`
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syntax) if desired, as they are provided by this module.
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<table>
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<tbody>
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<tr>
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<td>N/A</td>
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<td>This module provides no variables.</td>
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</tr>
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</tbody>
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</table>
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## Provided Macros:
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The following macros may be referenced in a user makefile (via
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`$(call NAME, ARG1, ARG2, ...)` syntax) if desired, as they are provided by
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this module.
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<table>
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<tbody>
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<tr>
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<td>N/A</td>
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<td>This module provides no macros.</td>
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</tr>
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</tbody>
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</table>
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## Module Changelog:
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The changes to this module since its initial release are listed below, as of the
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DMBS version where the change was made.
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### 20210412
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Made `AVRDUDE_EFUSE` optional for `avrdude-fuses` because not every AVR has this fuse.
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### 20171231
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Added `AVRDUDE_BAUD`, `AVRDUDE_HFUSE`, `AVRDUDE_EFUSE`, `AVRDUDE_LFUSE` and
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`AVRDUDE_LOCK` optional variables.
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### 20160403
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Initial release.
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