Testing TPS652170 DCDC1 Voltage Change with IPG-UI
14
SLVUBH6 – November 2018
Copyright © 2018, Texas Instruments Incorporated
Software Instructions
Figure 13. Disable GO Bit in SLEW Register
•
Click on the row for the
DEFDCDC1
register (0x0E) again, and this time move the slider on the right-
hand side of the window to change the output voltage of DCDC1 to a new value. Write the new value
of this register by clicking the button labeled
W
in this row of the register map table, as shown in
. The value in the
PASSWORD
register (0x10) will also change because the IPG-UI is
automatically writing the correct password to this register in advance so that the DCDC1 register will
accept the new data.
Figure 14. Modifying DEFDCDC1 Register Value
•
Verify the new voltage setting by measuring the
DCDC1
test point (TP14) on the BOOSTXL-
