Example Summary

This example uses the Algorithm Processing Unit (APU) to implement the MUSIC algorithm, used for Bluetooth Channel Sounding. This example uses test measurements for a distance of 16m.

Peripherals & Pin Assignments

When this project is built, the SysConfig tool will generate the TI-Driver configurations into the ti_drivers_config.c and ti_drivers_config.h files. Information on pins and resources used is present in both generated files. Additionally, the System Configuration file (*.syscfg) present in the project may be opened with SysConfig’s graphical user interface to determine pins and resources used.

• CONFIG_APU_0 - Singleton APU instance used by the application.

BoosterPacks, Board Resources & Jumper Settings

For board specific jumper settings, resources and BoosterPack modifications, refer to the Board.html file.

If you’re using an IDE such as Code Composer Studio (CCS) or IAR, please refer to Board.html in your project directory for resources used and board-specific jumper settings.

The Board.html can also be found in your SDK installation:

<SDK_INSTALL_DIR>/source/ti/boards/<BOARD>

Example Usage

• Open a serial session (e.g. PuTTY, etc.) to the appropriate COM port.
  • The COM port can be determined via Device Manager in Windows or via ls /dev/tty* in Linux.

The connection will have the following settings:

    Baud-rate:     115200
    Data bits:          8
    Stop bits:          1
    Parity:          None
    Flow Control:    None

• Before running the MUSIC algorithm, Hello MUSIC! is displayed.

• After running the algorithm, the run time and estimated distance is displayed.

Application Design Details

• This example shows how to use many of the APU’s most important functions, which are the main steps of the MUSIC algorithm.

• Note that aside from the initial buffer, all operations happen within the APU memory. This is far more efficient, as it avoid copying data in and out for each operation.

• The input data is a Phase Corrected Term (PCT) vector. See this page for more information about measurements.

FreeRTOS:

• Please view the FreeRTOSConfig.h header file for example configuration information.