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3.4
Using the GUI
3.4.1
The Main Window
3.4.1.1
TAS5414 Control Panel
3.4.1.2
Device Status Panel
Graphical User Interface
Figure 5. Various Panels of Main Window
The Control Panel consists of six buttons that perform basic functions on all four channels.
Reset: This button sends a software reset to the device via I
2
C. It is equivalent to sending a 9F to register
0x0C. All the I
2
C defaults are restored.
Read Faults: This button reads the four fault registers 0x00 through 0x03 and reports the data to the
Device Status Panel
Load Diag: This button runs a script to perform the built-in load diagnostics. It places all four channels
into Hi-Z mode, runs the load diagnostic, and reports any faults to the Device Status Panel. The details
are displayed for each channel.
Play All: This button uses I
2
C to run a script to place all four channels into play mode. An optional
enhanced play version is in the Options Menu. (See Options Menu.)
Mute All: This button uses I
2
C to mute all four channels. All channels switch at 50% duty cycle, and no
signal passes from the input to the output.
Hi-Z All: This button places all four channel outputs into a high-impedance state. The device is first placed
in mute. The Low-Low state is then invoked. The Low-Low state connects current sources to/from the
output to ground to provide a current path for any stored energy in the speaker. Then, the outputs are
placed in Hi-Z.
Device Panel Title: The title at the top of the Device Status Panel shows with which device the GUI is set
to communicate. The four options are: Master (shown in
), Slave1, Slave 2, and Slave 3. This is
changed in the menu item Device Select
Global: This provides fault feedback from the device. If a fault occurs, a red Fault is indicated. Read the
fault detail in the register 0x00 and 0x01.
Temperature: This has not been implemented as yet
Channel 1-4: These four items provide individual channel output states. Hi-Z, Mute, Low-Low, and Play.
The gain setting is displayed with the play indication.
Fsw: This item provides the switching frequency of the outputs.
SLOU202 – June 2007
TAS5414 and TAS5424 Evaluation Module
9