Zoltan Hudak / Mbed OS TLE5012B_Hello

Example program for the TLE5012B magnetic 360° angle sensor.

Dependencies:   TLE5012B

Example program for the TLE5012B 360° angle sensor.

TLE5012B

200


The TLE5012B is a 360° angle sensor that detects the orientation of a magnetic field. This is achieved by measuring sine and cosine angle components with monolithic integrated Giant Magneto Resistance (iGMR) elements. These raw signals (sine and cosine) are digitally processed internally to calculate the angle orientation of the magnetic field (magnet). The TLE5012B is a pre-calibrated sensor. The calibration parameters are stored in laser fuses. At start-up the values of the fuses are written into flip-flops, where these values can be changed by the application-specific parameters. Further precision of the angle measurement over a wide temperature range and a long lifetime can be improved by enabling an optional internal autocalibration algorithm. Data communications are accomplished with a bi-directional Synchronous Serial Communication (SSC) that is SPI-compatible. The sensor configuration is stored in registers, which are accessible by the SSC interface.

A bi-directional Synchronous Serial Communication (SSC) Interface (aka 3-wire SPI) is used for the communication. The TLE5012B has a single pin for Data input and and Data output. This pin is connected to the Mbed's SPI MOSI and MISO pins using a series/pull-up resistor as proposed for the 3-wire SPI by Wim Huiskamp


Wiring of a SSC (aka 3-wire SPI) communication bus:

https://os.mbed.com/media/uploads/hudakz/tle5012b_wiring02.png



Used library:

Import libraryTLE5012B

Library for the TLE5012B magnetic 360° angle sensor.

Last commit 19 Sep 2020 by Zoltan Hudak

README.md

Committer:
hudakz
Date:
2020-09-19
Revision:
2:e2300152c6c5
Parent:
0:0a652123777c

File content as of revision 2:e2300152c6c5:

![](./resources/official_armmbed_example_badge.png)
# Blinky Mbed OS example

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/).

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).
(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).)

1. [Install Mbed CLI](https://os.mbed.com/docs/mbed-os/latest/quick-start/offline-with-mbed-cli.html).

1. Clone this repository on your system, and change the current directory to where the project was cloned:

    ```bash
    $ git clone git@github.com:armmbed/mbed-os-example-blinky && cd mbed-os-example-blinky
    ```

    Alternatively, you can download the example project with Arm Mbed CLI using the `import` subcommand:

    ```bash
    $ mbed import mbed-os-example-blinky && cd mbed-os-example-blinky
    ```


## Application functionality

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.

## Building and running

1. Connect a USB cable between the USB port on the board and the host computer.
2. <a name="build_cmd"></a> Run the following command to build the example project and program the microcontroller flash memory:
    ```bash
    $ mbed compile -m <TARGET> -t <TOOLCHAIN> --flash
    ```
The binary is located at `./BUILD/<TARGET>/<TOOLCHAIN>/mbed-os-example-blinky.bin`.

Alternatively, you can manually copy the binary to the board, which you mount on the host computer over USB.

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:

```bash
$ mbed compile -S
```

## Expected output
The LED on your target turns on and off every 500 milliseconds.


## Troubleshooting
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.

## Related Links

* [Mbed OS Stats API](https://os.mbed.com/docs/latest/apis/mbed-statistics.html).
* [Mbed OS Configuration](https://os.mbed.com/docs/latest/reference/configuration.html).
* [Mbed OS Serial Communication](https://os.mbed.com/docs/latest/tutorials/serial-communication.html).
* [Mbed OS bare metal](https://os.mbed.com/docs/mbed-os/latest/reference/mbed-os-bare-metal.html).
* [Mbed boards](https://os.mbed.com/platforms/).

### License and contributions

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.

This project contains code from other projects. The original license text is included in those source files. They must comply with our license guide.