Texas Instruments DLP® LightCrafter™ Evaluation Module DLPLIGHTCRAFTER DLPLIGHTCRAFTER Datenbogen

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DLPLIGHTCRAFTER

DLP LightCrafter Embedded Software Overview

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•

A timing generator, which implements the internal auto trigger for continuously repeated pattern
display.

•

Control for the illumination LEDs; generates LED strobe signals with configurable delay and duration to
set exposure; synchronized with the trigger.

•

A video data source input selector (MUX); sends the video data to the DLPC300 parallel input. Inputs
are:

–

Video from the TFP401A DVI receiver

–

DM365 24-bit RGB (not bit identical with stored patterns)

–

DM365 YUV4:2:2 video converted to RGB888 (bit identical with stored patterns).

•

Timing and signal management for a "circular" frame buffer.

Please read the DLP LightCrafter FPGA Overview application note for more details. TI literature number

DLPA042

Figure 1-6

shows the block diagram of the FPGA hardware.

Figure 1-6. DLP LightCrafter FPGA Block Diagram

1.3.3 MSP430 Overview and Shutdown Protection Modes

The MSP430 controls the power sequencing, initializes the DLPC300, and provides safety shutdown
protection modes for DLP LightCrafter. The MSP430 has three shutdown protection modes. The shutdown
modes require that both the system power and USB cable be disconnected before a reboot is allowed.
Each mode is displayed by blinking the Red LED (D3) on the driver board at different rates.

Table 1-2

describes the protection modes.

Table 1-2. DLP LightCrafter Protection Shutdown Modes

Shutdown Mode Description

D3 On Time (s)

D3 Off Time (s)

System voltage less than 3.9 V or greater than 5.5 V

5.0

0.5

LED anode voltage above 5.8 V

5.0

Light engine thermistor above 70°C

1.5

1.0

DLP

LightCrafter™ Module Overview

DLPU006C – January 2012 – Revised December 2013

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