41 lines
2.9 KiB
Markdown
41 lines
2.9 KiB
Markdown
**PLEASE NOTE: EMBITZ BUILD IS CURRENTLY UNMAINTAINED**
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Builds are mostly not working. Looking for volunteers!
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# Building uhsdr firmware with EmBitz
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This document describes how to build the uhsdr firmware using the EmBitz IDE on windows.
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### What is EmBitz
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[EmBitz](https://www.embitz.org) (formerly Em::Blocks) is a powerful C/C++ IDE for embedded software development on Windows. It is a free IDE built as a derivative of [Code::Block](http://www.codeblocks.org/) but specifically tailored for embedded software development. It comes with a bundled GNU ARM compiler 5.4 with different optimized libraries. See [features](https://www.embitz.org/feature-list/) at [Embitz.org](https://www.embitz.org).
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It is a light and fast IDE compared to Eclipse but with a lot of handy and powerfull features for embedded development. See the discussion on inexpensive ARM development tools on [EEVBLOG electronics Community Forum](http://www.eevblog.com/forum/microcontrollers/inexpensive-arm-development-tools/).
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### Prerequisites
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* EmBitz works on windows 7 and up.
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* Optional : Building the uhsdr firmware with the bundled GNU ARM toolchain 5.4 is fine, but you can install independent
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[GNU ARM Embedded Toolchains](https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads) if you prefer another toolchain version.
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* Optional : EmBitz doesn't include any Git interface or plugin, an external Git tool is needed to publish your modifications on GitHub. [GitHub Desktop](https://desktop.github.com/) or [SmartGit](https://www.syntevo.com/smartgit/) are very easy to use. Read the explanations by DF8OE in the [CONTRIBUTING.md](https://github.com/df8oe/uhsdr/blob/active-devel/CONTRIBUTING.md) file.
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### Building
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* Open the *uhsdr-embitz.eworkspace* file into EmBitz (File/Open/Workspace files menu)
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* Change the *ar* toolchain archiver to *arm-none-eabi-gcc-ar.exe* (Settings/Tools/Global Compiler Settings/Toolchain Executables), this is to allow link time optimization of libraries
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* Select the **Release** target of all projects and build them.
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* The ready to flash *fw-xxx.bin* file is in mchf-embitz/bin/Release directory.
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### Debugging
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EmBitz uses own tailor made GDB debuggers, allowing some features such as live variables and "hot" connect to running targets without stopping. The integrated ARM GDB supports the inexpensive ST-LINK V2 clones from Ebay.
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* Select the **Debug** target of all projects and build them.
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* Press and hold the **POWER** button of the radio and start the debug session with the F8 key. The GDB is started and automatically flashes the firmware onto the CPU. Don't release the **POWER** button until the main firmware is run to the point where the GPIO pin controlling the power (POWERDOWN signal) is set.
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** Once powered on, the firmware could be reseted or halted and breakpoints could be set without loosing the power.
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Have fun - Open-Source opens possibilities!
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F4FHH, Nicolas
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