Example Summary

Sample application to periodically toggle an LED based off a timer.

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_TIMER_0 - Timer instance that toggles the LED.
• CONFIG_GPIO_LED_0 - LED toggled in the callback function.

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

• The example performs general initialization in mainThread.

Application Design Details

This application uses one thread, mainThread. The timer is operating in Timer_CONTINUOUS_CALLBACK mode which causes the callback function, timerCallback, to be called at a rate specified by period. A period of 1,000,000 microseconds or 1 second is used. Because the LED is toggled each time timerCallback is called, the observed frequency the LED blinks is once every 2 seconds.

FreeRTOS:

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