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Dependencies:   RemoteIR TextLCD

README.md@0:0d0037aabe41, 2020-07-14 (annotated)

Committer:
yangtzuli
Date:
Tue Jul 14 01:20:09 2020 +0000
Revision:
0:0d0037aabe41
mode-rimokon

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yangtzuli 0:0d0037aabe41 1 ![](./resources/official_armmbed_example_badge.png)
yangtzuli 0:0d0037aabe41 2 # Blinky Mbed OS example
yangtzuli 0:0d0037aabe41 3
yangtzuli 0:0d0037aabe41 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/).
yangtzuli 0:0d0037aabe41 5
yangtzuli 0:0d0037aabe41 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).
yangtzuli 0:0d0037aabe41 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).)
yangtzuli 0:0d0037aabe41 8
yangtzuli 0:0d0037aabe41 9 1. [Install Mbed CLI](https://os.mbed.com/docs/mbed-os/latest/quick-start/offline-with-mbed-cli.html).
yangtzuli 0:0d0037aabe41 10
yangtzuli 0:0d0037aabe41 11 1. Clone this repository on your system, and change the current directory to where the project was cloned:
yangtzuli 0:0d0037aabe41 12
yangtzuli 0:0d0037aabe41 13 ```bash
yangtzuli 0:0d0037aabe41 14 $ git clone git@github.com:armmbed/mbed-os-example-blinky && cd mbed-os-example-blinky
yangtzuli 0:0d0037aabe41 15 ```
yangtzuli 0:0d0037aabe41 16
yangtzuli 0:0d0037aabe41 17 Alternatively, you can download the example project with Arm Mbed CLI using the `import` subcommand:
yangtzuli 0:0d0037aabe41 18
yangtzuli 0:0d0037aabe41 19 ```bash
yangtzuli 0:0d0037aabe41 20 $ mbed import mbed-os-example-blinky && cd mbed-os-example-blinky
yangtzuli 0:0d0037aabe41 21 ```
yangtzuli 0:0d0037aabe41 22
yangtzuli 0:0d0037aabe41 23
yangtzuli 0:0d0037aabe41 24 ## Application functionality
yangtzuli 0:0d0037aabe41 25
yangtzuli 0:0d0037aabe41 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.
yangtzuli 0:0d0037aabe41 27
yangtzuli 0:0d0037aabe41 28 ## Building and running
yangtzuli 0:0d0037aabe41 29
yangtzuli 0:0d0037aabe41 30 1. Connect a USB cable between the USB port on the board and the host computer.
yangtzuli 0:0d0037aabe41 31 2. <a name="build_cmd"></a> Run the following command to build the example project and program the microcontroller flash memory:
yangtzuli 0:0d0037aabe41 32 ```bash
yangtzuli 0:0d0037aabe41 33 $ mbed compile -m <TARGET> -t <TOOLCHAIN> --flash
yangtzuli 0:0d0037aabe41 34 ```
yangtzuli 0:0d0037aabe41 35 The binary is located at `./BUILD/<TARGET>/<TOOLCHAIN>/mbed-os-example-blinky.bin`.
yangtzuli 0:0d0037aabe41 36
yangtzuli 0:0d0037aabe41 37 Alternatively, you can manually copy the binary to the board, which you mount on the host computer over USB.
yangtzuli 0:0d0037aabe41 38
yangtzuli 0:0d0037aabe41 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:
yangtzuli 0:0d0037aabe41 40
yangtzuli 0:0d0037aabe41 41 ```bash
yangtzuli 0:0d0037aabe41 42 $ mbed compile -S
yangtzuli 0:0d0037aabe41 43 ```
yangtzuli 0:0d0037aabe41 44
yangtzuli 0:0d0037aabe41 45 ## Expected output
yangtzuli 0:0d0037aabe41 46 The LED on your target turns on and off every 500 milliseconds.
yangtzuli 0:0d0037aabe41 47
yangtzuli 0:0d0037aabe41 48
yangtzuli 0:0d0037aabe41 49 ## Troubleshooting
yangtzuli 0:0d0037aabe41 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.
yangtzuli 0:0d0037aabe41 51
yangtzuli 0:0d0037aabe41 52 ## Related Links
yangtzuli 0:0d0037aabe41 53
yangtzuli 0:0d0037aabe41 54 * [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html).
yangtzuli 0:0d0037aabe41 55 * [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html).
yangtzuli 0:0d0037aabe41 56 * [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html).
yangtzuli 0:0d0037aabe41 57 * [Mbed OS bare metal](https://os.mbed.com/docs/mbed-os/latest/reference/mbed-os-bare-metal.html).
yangtzuli 0:0d0037aabe41 58 * [Mbed boards](https://os.mbed.com/platforms/).
yangtzuli 0:0d0037aabe41 59
yangtzuli 0:0d0037aabe41 60 ### License and contributions
yangtzuli 0:0d0037aabe41 61
yangtzuli 0:0d0037aabe41 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.
yangtzuli 0:0d0037aabe41 63
yangtzuli 0:0d0037aabe41 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.