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For power conversion to start, the EN line for the rail must be high. The EN lines are driven by the USB to
GPIO pod. Control Line #1 drives the A_EN pin. Control Line #2 drives the B_EN pin. To gain access to
the Control Lines, go back to the System View window (Figure 3) and click on the System Monitor button
on the top row. This will open the System Monitor window as shown in
Lines is selected by the buttons in the box at the top of the window. Clicking on a control line button will
immediately change the state of the line. This window offers another way to select and display the
telemetry data. You can customize the display to your liking.
SNAU240 – August 2018
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Start & Stop PMBus
data collection here.
Figure 6. Monitor Window: Parametric Data Plots
Figure 7. System Monitor Window: Control Lines
Copyright © 2018, Texas Instruments Incorporated
Using the Fusion Digital Power Designer GUI
Figure
Using the TPSM831D31 Power Module Evaluation Module
7. The state of the Control
9
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