Texas Instruments BoosterPack C5545, Hardware User'S Manual, Page: 24 / 43

Introduction to C5545 BoosterPack Board
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24 SPRUI90 – September 2016
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TMS320C5545 BoosterPack Hardware
2.12.2 Powering C5545 BoosterPack From LaunchPad
The C5545 BoosterPack can be powered from an attached LaunchPad (LP_5V from pin 2 on LaunchPad
header J7) or through either of the micro USB ports. Diodes on the BoosterPack prevent back-powering
from one power source into another, but this also means that an attached LaunchPad cannot be powered
by the BoosterPack.
Figure 22. C5545 BoosterPack Powering Options
2.12.3 LaunchPad Reset (refer to Section 2.3 )
Hardware reset from the LaunchPad is tied to the BoosterPack through pin 16 on the LaunchPad headers.
When the LaunchPad reset button is pressed or when the LaunchPad debugger initiates a reset, both the
LaunchPad MCU and the C5545 BoosterPack will be reset together.
The LaunchPad MCU can also initiate a software reset through pin 5 that affects only the C5545
BoosterPack. The reset button (SW1) on the BoosterPack will only affect devices on the BoosterPack and
leave the LaunchPad undisturbed.