!Certified to work on my machine
This project is designed as a template for a multi-directory ARM makefile project that also links to the mbed and mbed-rtos libraries. I tried to keep the build system fairly simple, but at the same time I wanted to keep everything neatly organized. The table below explains the contents of each top-level folder.
| Folder | Description |
|---|---|
| debug | Debugging symbols and binaries from the compiled project |
| lib | Libraries that will be linked in or compiled as part of the project |
| obj | Destination for all intermediate object files |
| release | Binaries compiled without debugging symbols, size-optimized by default |
| scripts | Scripts used during the build process (see below) |
| src | Source code |
I have not included copies of mbed and mbed-rtos with this project directly because up-to-date versions are easily obtainable from the mbed website. The links above provide access to the downloads. If you have an mbed account (which is free), you can download mbed as a Mercurial repository, which can be more convenient in some cases. Otherwise, anyone can download the zip or gz files for the current versions.
At the top of the makefile, there are several user-configurable parameters designed to enable the Makefile to be easily portable.
| Variable | Description |
|---|---|
| PROJECT | Project name, used to name the binary |
| TARGET | Target board/device to use |
| DEBUG | 1 => compile with debugging symbols; 0 => compile with -Os |
There are also a variety of rules that help with project management and debugging...
| Rule | Description |
|---|---|
| clean | Deletes automatically generated files (object files, logs, ...) and reverts submodules to their last commit |
| update | Pulls lastest changes in submodules |
| size | Outputs the size of the most recently compiled code |
| flash | Writes current binary to micrcontroller flash |
| gdb | Invokes gdb with the appropriate arguments |
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