Version 1 mit Interruptverriegeling

Committer:
JoergSturm
Date:
Thu Dec 17 11:30:32 2020 +0000
Revision:
0:5e36fcac4547
Version 1

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JoergSturm 0:5e36fcac4547 1 ![](./resources/official_armmbed_example_badge.png)
JoergSturm 0:5e36fcac4547 2 # Blinky Mbed OS example
JoergSturm 0:5e36fcac4547 3
JoergSturm 0:5e36fcac4547 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/).
JoergSturm 0:5e36fcac4547 5
JoergSturm 0:5e36fcac4547 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).
JoergSturm 0:5e36fcac4547 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).)
JoergSturm 0:5e36fcac4547 8
JoergSturm 0:5e36fcac4547 9 1. [Install Mbed CLI](https://os.mbed.com/docs/mbed-os/latest/quick-start/offline-with-mbed-cli.html).
JoergSturm 0:5e36fcac4547 10
JoergSturm 0:5e36fcac4547 11 1. Clone this repository on your system, and change the current directory to where the project was cloned:
JoergSturm 0:5e36fcac4547 12
JoergSturm 0:5e36fcac4547 13 ```bash
JoergSturm 0:5e36fcac4547 14 $ git clone git@github.com:armmbed/mbed-os-example-blinky && cd mbed-os-example-blinky
JoergSturm 0:5e36fcac4547 15 ```
JoergSturm 0:5e36fcac4547 16
JoergSturm 0:5e36fcac4547 17 Alternatively, you can download the example project with Arm Mbed CLI using the `import` subcommand:
JoergSturm 0:5e36fcac4547 18
JoergSturm 0:5e36fcac4547 19 ```bash
JoergSturm 0:5e36fcac4547 20 $ mbed import mbed-os-example-blinky && cd mbed-os-example-blinky
JoergSturm 0:5e36fcac4547 21 ```
JoergSturm 0:5e36fcac4547 22
JoergSturm 0:5e36fcac4547 23
JoergSturm 0:5e36fcac4547 24 ## Application functionality
JoergSturm 0:5e36fcac4547 25
JoergSturm 0:5e36fcac4547 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.
JoergSturm 0:5e36fcac4547 27
JoergSturm 0:5e36fcac4547 28 ## Building and running
JoergSturm 0:5e36fcac4547 29
JoergSturm 0:5e36fcac4547 30 1. Connect a USB cable between the USB port on the board and the host computer.
JoergSturm 0:5e36fcac4547 31 2. <a name="build_cmd"></a> Run the following command to build the example project and program the microcontroller flash memory:
JoergSturm 0:5e36fcac4547 32 ```bash
JoergSturm 0:5e36fcac4547 33 $ mbed compile -m <TARGET> -t <TOOLCHAIN> --flash
JoergSturm 0:5e36fcac4547 34 ```
JoergSturm 0:5e36fcac4547 35 The binary is located at `./BUILD/<TARGET>/<TOOLCHAIN>/mbed-os-example-blinky.bin`.
JoergSturm 0:5e36fcac4547 36
JoergSturm 0:5e36fcac4547 37 Alternatively, you can manually copy the binary to the board, which you mount on the host computer over USB.
JoergSturm 0:5e36fcac4547 38
JoergSturm 0:5e36fcac4547 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:
JoergSturm 0:5e36fcac4547 40
JoergSturm 0:5e36fcac4547 41 ```bash
JoergSturm 0:5e36fcac4547 42 $ mbed compile -S
JoergSturm 0:5e36fcac4547 43 ```
JoergSturm 0:5e36fcac4547 44
JoergSturm 0:5e36fcac4547 45 ## Expected output
JoergSturm 0:5e36fcac4547 46 The LED on your target turns on and off every 500 milliseconds.
JoergSturm 0:5e36fcac4547 47
JoergSturm 0:5e36fcac4547 48
JoergSturm 0:5e36fcac4547 49 ## Troubleshooting
JoergSturm 0:5e36fcac4547 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.
JoergSturm 0:5e36fcac4547 51
JoergSturm 0:5e36fcac4547 52 ## Related Links
JoergSturm 0:5e36fcac4547 53
JoergSturm 0:5e36fcac4547 54 * [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html).
JoergSturm 0:5e36fcac4547 55 * [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html).
JoergSturm 0:5e36fcac4547 56 * [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html).
JoergSturm 0:5e36fcac4547 57 * [Mbed OS bare metal](https://os.mbed.com/docs/mbed-os/latest/reference/mbed-os-bare-metal.html).
JoergSturm 0:5e36fcac4547 58 * [Mbed boards](https://os.mbed.com/platforms/).
JoergSturm 0:5e36fcac4547 59
JoergSturm 0:5e36fcac4547 60 ### License and contributions
JoergSturm 0:5e36fcac4547 61
JoergSturm 0:5e36fcac4547 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.
JoergSturm 0:5e36fcac4547 63
JoergSturm 0:5e36fcac4547 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.