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Texas Instruments DLP NIRscan User Manual

Texas Instruments DLP NIRscan
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External Power Supply Requirements
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Figure 4-3 shows the Tiva connections to the DLPC150 controller board. Tiva powers up the DLP
subsystem through PJ7. The TIva's LCD interface is connected to the DLPC150 Parallel Port interface.
Through this interface 24 patterns are transmitted per frame. DLPC150 sends two interrupts to the Tiva to
indicate when a pattern is exposed (TRIG_OUT_2) and when a new frame begins (TRIG_OUT_1). For
DLPC150 firmware updates, the Tiva con write to the DLPC150 serial flash through its SSI2 peripheral
when the DLP subsystem is powered down. Tiva's PD2 controls the lamp. A lamp photodiode is measured
by the DLPA2005 when a scan occurs. The value of the photodiode is transmitted to the DLPC150 and
then to the Tiva. This photodiode measures the lamp intensity.
Figure 4-3. DLP NIRscan Nano Tiva Connections to DLPC150 Controller Board
34
DLP NIRscan Nano Hardware DLPU030B–June 2015–Revised July 2015
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Texas Instruments DLP NIRscan Specifications

General IconGeneral
BrandTexas Instruments
ModelDLP NIRscan
CategoryMotherboard
LanguageEnglish

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