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DLP3021LEQ1EVM: DLP3021LEQ1EVM question about trigger to external devices

Vladimir Zhukov
Intellectual 370 points
Part Number: DLP3021LEQ1EVM
Other Parts Discussed in Thread: DLP3021-Q1

Good day!

Please tell me if the DLP3021LEQ1EVM demo board has triggers for controlling (synchronizing) external devices?
Input trigger from an external device.

Input sync trigger from an external device.
Output sync trigger to an external device.

Synchronization is necessary for monochrome (black-and-white) 2D picture control of matrix micromirrors with external devices.

Best regards, Vladimir Zhukov.

  • +1
    TI__Mastermind 27780 points

    Hi Vladimir,

    The only external interface available to the DLP3021-Q1 chipset is a SPI connection, so there are no input or output sync triggers/pins specifically available.

    The intended dynamic ground projection use-case requiring the synchronization of multiple DLP3021-Q1 modules requires a broadcast X-to-SPI command from an external host controller. In your situation where you want to synchronize the system with other non-DGP modules, you could monitor the LED_EN and SHUNT_EN signals as sync triggers. When LED_EN transitions from low-to-high, the module is turning-on to display, while a SHUNT_EN transition from low-to-high indicates the module is disabling the display.