mikromedia for Tiva C Series: TM4C123GH6PZ, TFT LC

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Tiva C Series Multimedia Board Features

TM4C123GH6PZ ARM Cortex-M4 microcontroller

This high-performance 32-bit microcontroller with its integrated modules in combination with the on-board modules is ideal for multimedia applications.

Up to 100 DMIPS Operation
32-bit architecture
256KB of Flash memory
32KB of SRAM; 2KB EEPROM
69 I/O pins
Internal oscillators: 16MHz, 30kHz, PLL
16/32-bit and 32/64-bit timers
Ethernet, UART, SPI, I2C, CAN, ADC, etc.

USB power supply

You can apply power to the board using the Mini-B USB cable provided with in the package. On-board voltage regulators will make sure to regulate the appropriate voltage levels to each part of the board. A green LED will indicate the presence of power supply.

Battery power supply

You can also power the board using a Li-Polymer battery via the on-board battery connector. An MCP73832 battery charger circuit enables you to charge the battery over USB connection. Charging current is ~250mA and charging voltage is 4.2V DC. A red LED will indicate battery charging.

Programming with bootloader

For programming the microcontroller, you can use a bootloader program which is pre-installed in the MCU memory. To transfer a .hex file from a PC to the MCU, you can use the free mikroBootloader USB HID application. The board has a mini-USB connector and ships with a cable to connect to your PC.

Programming with external programmer/debugger

In case you want to remove the USB bootloader, need to re-install it, or want to perform in-circuit debugging, the microcontroller can be programmed with an external in-circuit programmer/debugger such as the mikroProg-Tiva (not included). The board has pads for installing programming headers compatible with that programmer, and also has a pre-installed Cortex Debug connector for other external programmers.

Reset Button

The board has a reset button on the LCD side, so it can be pressed by the end user in an encased device. A reset signal also can be provided through the extension header.

Crystal Oscillators

The board is equipped with a 16MHz crystal oscillator circuit that provides an external clock waveform to the microcontroller OSC0 and OSC1 pins. This base frequency is suitable for further clock multipliers and ideal for generation of the necessary USB clock, which ensures proper operation of the bootloader and your custom USB-based applications. The board also has a 32.768kHz crystal oscillator which provides external clock for the internal hibernation module.

microSD Card Slot

The board contains a microSD card slot for using microSD cards in your projects. It enables you to store large amounts of data externally, thus saving microcontroller memory. microSD cards use Serial Peripheral Interface (SPI) for communication with the microcontroller.

Touch Screen

The development system features a TFT 320×240 display covered with a resistive touch panel. Together they form a functional unit called a touch screen. It enables data to be entered and displayed at the same time. The TFT display is capable of showing data in 262,144 different colors.

Audio Module

mikromedia for Tiva C features a VS1053 audio controller. This module enables audio reproduction by using stereo headphones connected to the system via its 3.5mm connector. All functions of this module are controlled by the microcontroller over Serial Peripheral Interface (SPI).

USB Connection

The TM4C123GH6PZ microcontroller has an integrated USB module, which enables you to implement USB communication functionality with your mikromedia board. Connection with a target USB host is done over Mini-B USB connector which is positioned next to the battery connector.

Accelerometer

The on-board ADXL345 accelerometer, among other features, can be used to measure acceleration in three axes: x, y, and z. The accelerometer's function is defined by the program loaded into the microcontroller. Communication between the accelerometer and the microcontroller is performed via the I2C interface. You can set the accelerometer address to 0 or 1 by re-soldering the SMD jumper (zero-ohm resistor) to the appropriate position. This jumper is placed in address 1 position by default.

Flash Memory

The Flash memory module enables the microcontroller to use an additional 8Mbits of Flash memory. It is connected to the microcontroller via the Serial Peripheral Interface (SPI).

Software Examples

The downloadable software contains the following examples, both as ready-to-load compiled code and as source code written in mikroC, mikroBASIC and mikroPascal. The source codes provide detailed explanatory comments.

Demonstration of ADXL345 three-axis accelerometer. Values from accelerometer are shown on the TFT display.
Simple calculator demo for touchscreen.
Simple demonstration of display elements created in Visual TFT.
Map application demo. Displays a world map. Touching continents opens up an information display.
Demonstration of MMC/SD functions for reading/writing files and observing results through USART terminal.
Demonstration of communicating with VS1053B codec. Reads MP3 file from MMC and sends it to VS1053B for decoding and playback.
Simple progress bar demo.
Demonstration of SerialFlash usage (chip erase, read Flash ID, read/write a byte, read/write an array).
Demonstration of game graphic interfaces. Use a touch-joypad to move a ball through a maze with obstacles.
Demonstration of displaying a JPG image on the TFT display.

Package Contents

mikromedia for Tiva C Board
USB cable
Two 1×26 male headers (for GPIO expansion) and one 1x5 header (for mikroProg connection)
Printed documentation

Tiva C Multimedia Board Resources

mikromedia for Tiva C Series User Manual
mikromedia for Tiva C Series Schematic
mikromedia for Tiva C Series Pinout
mikromedia for Tiva C Series CAD File (AutoCAD DXF, useful if you want to design an enclosure for your system)
mikromedia for Tiva C Series Software Examples
mikromedia for Tiva C Series USB Bootloader
Timer Calculator Application which generates Tiva code for setting up MCU timers easily
Texas Instruments TM4C123GH6PZ Page with datasheet and other documentation

Optional Recommended Products for this Item

Plastic Pen Stylus for Touch Screens	+	US$2.00
microSDHC 4GB Flash Memory Card with Full-Size Adapter, Class 4	+	US$6.50
Li-Polymer Battery, 3.7V, 2000mAh, Molex 5264-2P	+	US$19.90
White Earphones with 3.5mm Stereo Connector	+	US$5.00
Visual TFT GUI Design Software w/ Templates for mikroElektronika	+	US$99.00
2x AAA Battery Adapter and Prototype Area (Battery Boost Shield)	+	US$14.00
Screw Terminal & Prototype Board for mikromedia (Connect Shield)	+	US$16.00
mikroBUS Shield for mikromedia	+	US$7.50
Prototype Board Shield for mikromedia (mikromedia PROTO Shield)	+	US$6.90
Gaming Shield for mikromedia: Control Buttons, Speakers, LEDs	+	US$18.00