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# GEX Firmware for STM32F072
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Copy `build.mk.example` to `build.mk`, configure as desired,
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and build the firmware image with `make`.
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Individual GEX units can be enabled or disabled in this config file, and the target platform is selected here as well.
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## Requirements
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Listed versions were used during development. Other (particularly newer) versions may work too, but without guarantee.
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Please submit patches needed to fix incompatibilities, or at least let me know.
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- **arm-none-eabi-gcc** (v8.1)
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- **arm-none-eabi-binutils** (v2.30)
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- **arm-none-eabi-newlib** (v3.0)
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- **make** (GNU, v4.2)
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- **tr** (GNU coreutils 8.29 - but any version should work)
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- **dfu-util** (v0.9) for DFU flashing
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- **stlink** (texane, v1.5) for ST-Link flashing
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## Make Targets
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- **make** - basic build (recommended to use with `-j` for faster builds)
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- **make flash** - flash using `st-flash`
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- **make dfu** - flash using `dfu-convert` and `dfu-util`
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- **make clean** - clean files generated during build
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All make targets depend on all Makefiles, meaning any modification triggers a full (`-B`)
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rebuild the next time you try to build or flash the firmware.
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