JP1
3.3 V
S4
UART
Getting Started
3.2
Configuring the LaunchPad
The BOOSTXL-DRV8301 Motor Drive Booster Pack supplies 3.3-V power to the LaunchPad through the
onboard 1.5-A step-down buck converter of the DRV8301. TI™ recommends removing the jumper on the
LaunchPad that connects the 3.3-V emulation and controller power supplies.
The BOOSTXL-DRV8301 nFAULT and nOCTW signals share lines with the LaunchPad UART RX and TX
signals. To see proper nFAULT and nOCTW reporting on the onboard LEDs and microcontroller GPIO,
disconnect the UART lines from the emulation side of the LaunchPad to the microcontroller.
Ex. LAUNCHXL-F28027F
Remove the 3.3-V jumper, JP1, for the LAUNCHXL-F28027F LaunchPad. Turn switch S4 OFF (UART
connection to emulation hardware) on the LaunchPad.
Figure 5. LAUNCHXL-F28027F Configurations
5
SLVU974 – October 2013
BOOSTXL-DRV8301 Hardware User's Guide
Copyright © 2013, Texas Instruments Incorporated
