2.12 Connection Between C5545 And Launchpad - Texas Instruments TMS320C5545 BoosterPack Hardware User's Manual

Introduction to C5545 BoosterPack Board

2.12 Connection Between C5545 and LaunchPad

2.12.1 Interface Details
The C5545 BoosterPack supports UART, I2C and I2S that are connected to the LaunchPad headers. It
can be connected to either the MSP432 LaunchPad (Part Number: MSP-EXP432P401R) or the CC3200
Launchpad - LAUNCHXL Rev3.1. Level translators (U12, U13 - SN74AVC4T245 for UART and I2S
interface, U6 - TCA9517DGKR for I2C interface) are used between C5545 DSP and LaunchPad signals
because IO voltage of LaunchPad is 3.3 V while the C5545 DSP IO voltage is 1.8 V. The I2S interface
from CC3200 LaunchPad (always supports the I2S master) can be connected to C5545 BoosterPack
(slave).
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TMS320C5545 BoosterPack Hardware
Figure 20. Connection Between C5545 and LaunchPad
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SPRUI90 – September 2016
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