Matteo Zorat / Mbed OS mbed-os-example-mbed5-blinky

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README.md@0:551ca13362cd, 2021-10-25 (annotated)

Committer:
zoratmat
Date:
Mon Oct 25 12:35:43 2021 +0000
Revision:
0:551ca13362cd
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zoratmat 0:551ca13362cd 1 ![](./resources/official_armmbed_example_badge.png)
zoratmat 0:551ca13362cd 2 # Blinky Mbed OS example
zoratmat 0:551ca13362cd 3
zoratmat 0:551ca13362cd 4 The example project is part of the [Arm Mbed OS Official Examples](https://os.mbed.com/code/) and is the [getting started example for Mbed OS](https://os.mbed.com/docs/mbed-os/v5.14/quick-start/index.html). It contains an application that repeatedly blinks an LED on supported [Mbed boards](https://os.mbed.com/platforms/).
zoratmat 0:551ca13362cd 5
zoratmat 0:551ca13362cd 6 You can build the project with all supported [Mbed OS build tools](https://os.mbed.com/docs/mbed-os/latest/tools/index.html). However, this example project specifically refers to the command-line interface tool [Arm Mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
zoratmat 0:551ca13362cd 7 (Note: To see a rendered example you can import into the Arm Online Compiler, please see our [import quick start](https://os.mbed.com/docs/mbed-os/latest/quick-start/online-with-the-online-compiler.html#importing-the-code).)
zoratmat 0:551ca13362cd 8
zoratmat 0:551ca13362cd 9 1. [Install Mbed CLI](https://os.mbed.com/docs/mbed-os/latest/quick-start/offline-with-mbed-cli.html).
zoratmat 0:551ca13362cd 10
zoratmat 0:551ca13362cd 11 1. Clone this repository on your system, and change the current directory to where the project was cloned:
zoratmat 0:551ca13362cd 12
zoratmat 0:551ca13362cd 13 ```bash
zoratmat 0:551ca13362cd 14 $ git clone git@github.com:armmbed/mbed-os-example-blinky && cd mbed-os-example-blinky
zoratmat 0:551ca13362cd 15 ```
zoratmat 0:551ca13362cd 16
zoratmat 0:551ca13362cd 17 Alternatively, you can download the example project with Arm Mbed CLI using the `import` subcommand:
zoratmat 0:551ca13362cd 18
zoratmat 0:551ca13362cd 19 ```bash
zoratmat 0:551ca13362cd 20 $ mbed import mbed-os-example-blinky && cd mbed-os-example-blinky
zoratmat 0:551ca13362cd 21 ```
zoratmat 0:551ca13362cd 22
zoratmat 0:551ca13362cd 23
zoratmat 0:551ca13362cd 24 ## Application functionality
zoratmat 0:551ca13362cd 25
zoratmat 0:551ca13362cd 26 The `main()` function is the single thread in the application. It toggles the state of a digital output connected to an LED on the board.
zoratmat 0:551ca13362cd 27
zoratmat 0:551ca13362cd 28 ## Building and running
zoratmat 0:551ca13362cd 29
zoratmat 0:551ca13362cd 30 1. Connect a USB cable between the USB port on the board and the host computer.
zoratmat 0:551ca13362cd 31 2. <a name="build_cmd"></a> Run the following command to build the example project and program the microcontroller flash memory:
zoratmat 0:551ca13362cd 32 ```bash
zoratmat 0:551ca13362cd 33 $ mbed compile -m <TARGET> -t <TOOLCHAIN> --flash
zoratmat 0:551ca13362cd 34 ```
zoratmat 0:551ca13362cd 35 The binary is located at `./BUILD/<TARGET>/<TOOLCHAIN>/mbed-os-example-blinky.bin`.
zoratmat 0:551ca13362cd 36
zoratmat 0:551ca13362cd 37 Alternatively, you can manually copy the binary to the board, which you mount on the host computer over USB.
zoratmat 0:551ca13362cd 38
zoratmat 0:551ca13362cd 39 Depending on the target, you can build the example project with the `GCC_ARM`, `ARM` or `IAR` toolchain. After installing Arm Mbed CLI, run the command below to determine which toolchain supports your target:
zoratmat 0:551ca13362cd 40
zoratmat 0:551ca13362cd 41 ```bash
zoratmat 0:551ca13362cd 42 $ mbed compile -S
zoratmat 0:551ca13362cd 43 ```
zoratmat 0:551ca13362cd 44
zoratmat 0:551ca13362cd 45 ## Expected output
zoratmat 0:551ca13362cd 46 The LED on your target turns on and off every 500 milliseconds.
zoratmat 0:551ca13362cd 47
zoratmat 0:551ca13362cd 48
zoratmat 0:551ca13362cd 49 ## Troubleshooting
zoratmat 0:551ca13362cd 50 If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it.
zoratmat 0:551ca13362cd 51
zoratmat 0:551ca13362cd 52 ## Related Links
zoratmat 0:551ca13362cd 53
zoratmat 0:551ca13362cd 54 * [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html).
zoratmat 0:551ca13362cd 55 * [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html).
zoratmat 0:551ca13362cd 56 * [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html).
zoratmat 0:551ca13362cd 57 * [Mbed OS bare metal](https://os.mbed.com/docs/mbed-os/latest/reference/mbed-os-bare-metal.html).
zoratmat 0:551ca13362cd 58 * [Mbed boards](https://os.mbed.com/platforms/).
zoratmat 0:551ca13362cd 59
zoratmat 0:551ca13362cd 60 ### License and contributions
zoratmat 0:551ca13362cd 61
zoratmat 0:551ca13362cd 62 The software is provided under Apache-2.0 license. Contributions to this project are accepted under the same license. Please see contributing.md for more info.
zoratmat 0:551ca13362cd 63
zoratmat 0:551ca13362cd 64 This project contains code from other projects. The original license text is included in those source files. They must comply with our license guide.