DLPC350: DLPC350 buffer freeze

jning Li

Prodigy 40 points

Part Number: DLPC350
Other Parts Discussed in Thread: DLP4500,

Hi,

I make a new design on the DLPC350 + DLP4500 and the Port 2 (FPD-LINK interface ) has been selected as the video port.

The DMD projection function is ok when i use the internal pattern to test it.

In video mode, the DMD can continue to project hundreds of image stream from FPD-LINK interface .

But i found DLPC350 frame buffer frozen after it receved hundreds of frames. I monitor current read buffer pointer but the value of feed back is not exchange.

I can't find any description about what will lead to the buffer freeze in datasheet or UG.

I have checked the frame timing, it match the spec.

what can I do to troubleshoot the issue?

over 4 years ago

0 Azad over 4 years ago

TI__Expert 5485 points

Hi jning,

What firmware are you currently using?

Regards

azad

0 jning Li over 4 years ago in reply to Azad

Prodigy 40 points

Hi,

DLPR350PROM_v3.1.0.bin which is from TI.

0 jning Li over 4 years ago in reply to Azad

Prodigy 40 points

Hi,

It can get the firmware version from DLP LightCrafter 4500 Control Software.

0 Hirak Biswas over 4 years ago in reply to jning Li

TI__Genius 10925 points

Hi Jhing Li,

As understood from the description above, you are operating the device in "Pattern sequence from video source" mode, am I correct? In that case, can you provide us the INI of the pattern configuration you are using? Also kindly provide the video timings you are using. This will help us to reproduce the issue at our end.

Thanks & Regards,

Hirak.

0 Hirak Biswas over 4 years ago in reply to Hirak Biswas

TI__Genius 10925 points

Hi Jhing Li,

Do you still need the answer to your question? We'll be temporarily closing this thread due to inactivity, you can reopen anytime!

Thanks & Regards,

Hirak.

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DLPC350: DLPC350 buffer freeze