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display

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Example Summary

Application that writes to the UART and the available LCD display using Display driver.

Peripherals Exercised

• Board_GPIO_LED0 - Toggled by example task periodically
• Board_UART - (If enabled) Outputs test strings
• Board_SPI - (If enabled) Outputs test strings to LCDs

Resources & Jumper Settings

This example requires an external display device. If you’re using an IDE (such as CCS or IAR), please refer to Board.html in your project directory for resources used and board-specific jumper settings. Otherwise, you can find Board.html in the directory <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

• Run the example
• A splash screen will be displayed on LCD’s and a welcome string on UART
• Board_GPIO_LED0 is toggled periodically
• The state of LED0 is output periodically on UART and LCD

Application Design Details

• Check the Board.html file for any board-specific settings if using an externel display device.
• If an externel display is not used, the code can be disabled by adding the precompiler define BOARD_DISPLAY_EXCLUDE_LCD.

For SensorTags there is a pin conflict, so either the DEVPACK-DEBUG or the DEVPACK-WATCH must be used and BOARD_DISPLAY_EXCLUDE_UART must be added to the global precompiler defines in order to use LCD.

For IAR users using any SensorTag(STK) Board, the XDS110 debugger must be selected with the 4-wire JTAG connection within your projects’ debugger configuration.

TI-RTOS:

• When building in Code Composer Studio, the kernel configuration project will be imported along with the example. The kernel configuration project is referenced by the example, so it will be built first. The “release” kernel configuration is the default project used. It has many debug features disabled. These features include assert checking, logging and runtime stack checks. For a detailed difference between the “release” and “debug” kernel configurations and how to switch between them, please refer to the SimpleLink MCU SDK User’s Guide. The “release” and “debug” kernel configuration projects can be found under <SDK_INSTALL_DIR>/kernel/tirtos/builds/<BOARD>/(release|debug)/(ccs|gcc).

FreeRTOS:

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