www.ti.com
Hardware
13
SLAU597E–March 2015–Revised January 2018
Submit Documentation Feedback
Copyright © 2015–2018, Texas Instruments Incorporated
MSP432P401R SimpleLink™ Microcontroller LaunchPad™ Development Kit
(MSP
‑
EXP432P401R)
2.4 Power
The board was designed to accommodate various powering methods, including through the onboard
XDS110-ET and from an external source or BoosterPack plug-in module.
Figure 10. MSP‑‑EXP432P401R Power Block Diagram
2.4.1 XDS110-ET USB Power
The most common power-supply scenario is from USB through the XDS110-ET debug probe. This
provides 5-V power from the USB and also regulates this power rail to 3.3 V for XDS110-ET operation and
3.3 V to the target side of the LaunchPad development kit. Power from the XDS110-ET is controlled by
the isolation block 3V3 jumper, ensure this jumper is connected for power to be provided to the target
MCU side.
Under normal operation, the LDO on the XDS110-ET can supply up to 500 mA of current to the target side
including any BoosterPack plug-in modules plugged in. However, when debugging and using the
EnergyTrace technology tool, this current is limited to 75 mA total. Be aware of this current limitation when
using EnergyTrace technology.
2.4.2 BoosterPack Plug-in Module and External Power Supply
Header J6 is present on the board to supply external power directly. It is important to comply with the
device voltage operation specifications when supplying external power. The MSP432P401R has an
operating range of 1.62 V to 3.7 V. More information can be found in MSP432P401xx SimpleLink™
Mixed-Signal Microcontrollers.
To Next Page
Loading...
