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DLP6500FLQ: change video mode to "video pattern mode"

Part Number: DLP6500FLQ
Other Parts Discussed in Thread: DLPC900

Hello Team,

My customer has written some USB control software for a DLP6500 DMD controlled by a DLPC900. When they try to change video mode to "video pattern mode" they get a command failed error because video is not locked. If they first set the input source configuration to "24 bit parallel" first, then they can change the video mode. The odd part is that if read the input configuration before setting it, it is already set to "24 bit parallel" on startup. This is problematic because even though it says it is set properly, they cannot change the video mode or achieve video lock unless they set it manually anyways.

System details (read with USB commands 0x0205 and 0x0206):
Application software: 3.0
API software: 4.1e
Software configuration: 68.33
Sequencer configuration: 68.33
Hardware config: DLP6500
Firmware tag: DLPR900PROM-6500-v3.0.0

Regards,

Renan

  • Hello Renan,

    If they are attempting to do this through a batch file, at this time it cannot be done.  Any attempt to use "DELAY" in the batch file ties up the controller so it does not achieve sync before the command to switch to video Pattern mode.  We have listed this as an item to address in the next firmware.

    In their code, they should set up regular video mode and give it time to complete sync with their incoming video stream.  It is not possible to switch to Video Pattern Mode without first being in Video Mode with a valid sync, which means that the receiver must be set up and synchronized before switching.

    This is mentioned in the latest Programmer's Guide DLPU018 on page 45.

    Fizix