Texas Instruments DLP3021LEQ1EVM, Руководство пользователя, Страница: 5 / 32

CAUTION
Projection Lamp
May be harmful to the eyes.
Do not stare at the operating lamp.
CAUTION
Hot Surface
Contact may cause burns.
Do not touch.
1.2.1 Formatter Subsystem
The formatter subsystem converts and translates image/video data stored in external flash memory through the
FPGA based DMD controller into the Double Data Rate (DDR) interface format compatible with the DLP3021-
Q1 data bus. The EVM offers two operating modes to specify what and how the image/video content is to
be displayed: in a closed-loop stand-alone mode using the on-board MSP430 MCU, or through an external
controller (such as the FTDI USB-to-SPI cable or Cheetah™ SPI Host Adapter) for GUI operation.
A DIP two-position switch at S1 on the DLP3021L1Q1EVM allows the user to physically set the operating mode
of the formatter subsystem. The SPI Adapter board also has two physical switches (S1 and S2) to set the same
operating modes.
Figure 1-3 and Figure 1-4 show the default S1 switch state for Host Control operating mode for
stand-alone operation, and the default switch state for Host Mute operating mode when the SPI Adapter Board is
connected.
Figure 1-3. Operating Mode Switches: Electronics
Board S1-A and S1-B Switches
Figure 1-4. Operating Mode Switches: SPI Adapter
Board S1 and S2 Switches
See Table 1-1 for the switch positions required of each operating mode.
www.ti.com DLP3021-Q1 Electronics EVM Overview
DLPU106A – MARCH 2021 – REVISED OCTOBER 2021
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DLP3021LEQ1EVM Evaluation Module 5
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