Part Number: DLPC3430
I have a design which uses the DLPC3430 and it receives pixel data over the DSI interface. Under normal operation (both host DSI processor and DLP are operating) the output is fine.
The issue occurs when the host processor DSI interface is disabled and then re-enabled. In most instances, the DLP DSI interface is not affected and the output is updated correctly. But occasionally the DLP DSI interface seems to lock up and not update the output. When this occurs, the video output can be changed to test mode and test mode images can be output correctly, so the device is not completely locked up.
In order to get the DSI interface working again the DLP3430 needs to have the PROG_ON signal cycled to re-initialize the device.
Are there any I2C commands that can be used to 1) reset the DSI port and 2) monitor the status of the DSI port?
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In reply to Philippe Dollo:
In reply to Chuck Rumbolt:
Could you try re-sending the operating mode select command (0x36 05 00) to set to external video? If that doesn't work you could try setting to test pattern then back to external video (0x36 05 01 followed by 0x36 05 00).
I'd also recommend to check your DSI setup against the below debugging guide. If any of your DSI parameters are out of spec (or perhaps close to the edge of our specification), it's possible there may be some issues.
1452.DSI Setup and Debugging Guide v0.2.pdf
In reply to Kyle Rakos:
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