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DLPC3438: How to change the init behavior regarding image source / LED enabled status

Part Number: DLPC3438
Other Parts Discussed in Thread: DLP3010, , DLPA3000


we are implementing a design using the DLPC3438 alongside with a DLP3010 and a DLPA3000.

Everything is working fine so far but we didn't figure out yet how to influence the initialization behavior.

It is our goal to keep the LEDs powered off until we have configured the DLPC (Image Source/Image Size etc.) and only after that enable the LEDs.

I assume this would call for a customized firmware?

Currently we are using version 7.3.3 of the DLPC firmware.

Thanks in advance for any hints!