Texas Instruments LM25056 Evaluation Board LM25056EVAL/NOPB LM25056EVAL/NOPB Datenbogen

The device should be detected on the PMBus and the initial
load screen should appear as shown in 

.

If a device is not detected, an option is provided to rescan,
ignore, or exit the GUI. If the hardware is intended to be con-
nected, check the USB connection to the PCB, FTDI connec-
tion to the evaluation module, and verify that the power is
present on the evaluation PCB by measuring the voltage be-
tween the GND and VIN testpoints. Ignoring the detection
message allows use of the integrated design tool without the
hardware connected.

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Click on the detected device ID (NSC-LM25056-AA) to dis-
play a block level representation of the device as shown in

. The block level view of the device provides a display

of all the telemetry data as well as the faults and warnings
supported by the device. The faults and warnings supported
are generally associated with an invalid input or output con-
dition.
The warnings shown on the left side of the block representa-
tion are generally associated with the input. These include
input under voltage (UV), input over voltage (OV), and input
over power (OP). The SMBus alert status (SMBA) is also
shown on the left side and will turn red during any warning or
fault event. To facilitate the evaluation of the device, SMBus
alerts are automatically cleared by the GUI.
The warnings or faults shown on the right side of the block
representation include input over current (OC), and over tem-
perature (OT).
The warnings shown at the bottom of the block representation
are asscociated with the VAUX measurement. The VAUX un-
dervoltage (UV) and the VAUX overvoltage (OV) indicators
are shown next to the auxiliary measurement.
To show a repetitive update of the device telemetry and status
click on the play icon at the top of the screen. The play button
starts an active telemetry log of the gathered data. Clicking
the stop icon stops the telemetry collection and allows for the
log file to be viewed and saved. The pause button pauses both
the displaying and logging of telemetry information.
To disable displaying undesired telemetry click the display
icon on the block representation. This will open the window
shown in 

desired telemetry, fault, and warning information from ap-
pearing on the block level device representation.

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