3
Operation
3.1
Running the Software
3.2
Software Features
www.ti.com
Operation
Turn on the input supply voltage.
Move S1 from OFF to ON.
The 16 LEDs now are displaying a default pattern.
This section provides instructions on how to turn on the TLC5944EVM and operate the software.
The user now can run the host computer software and change the LED programming with the easy-to-use
graphical interface.
Click on the TLC594x EVM GUI icon on the host computer to start the software. If no icon appears on the
host computer, then use the start button in the lower left corner of the screen to browse the program
folders to find the software. The default directory for software installation is Program Files\Texas
Instruments\TLC594x EVM GUI Application. The executable file name is TLC594x.exe. Once started, the
software checks the firmware in the DSP board to ensure it is compatible with the software. If the firmware
is not compatible, the software gives the user instructions on how to reprogram it. Once the software is
started and communication is established between the GUI and the EVM, the user can use the graphical
interface to program the LEDs. If the EVM is properly connected, the software screen looks like
when first opened.
Figure 2. TLC5944EVM Software Start-Up Screen
SLVU306 – April 2009
TLC5944EVM-358
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