DLP4710EVM-LC：Dlp4710 can't display test picture

user6201499

Part Number: DLP4710EVM-LC
Other Parts Discussed in Thread: DLP4710, DLPC3439, DLPA3005

Hello:

The system is dlp4710 + dlpc3439 + dlpa3005, which is designed according to the schematic diagram provided by www.ti.com/.../tida-01226, without optical structure added

Now I want to realize DMD display test picture

DMD can see that the mirror surface of DMD changes every time it is powered on. The GUI test picture shows that the surface of DMD does not change. The CLK measurement and other control signals and power supply meet the requirements

over 4 years ago

0 YiKai Chen over 4 years ago

Guru 735455 points

I would suggest you to post DLP related issue at DLP® products forum.

0 Hirak Biswas over 4 years ago

TI__Genius 10925 points

Hi User,

Welcome to TI E2E Forums! Could you kindly elaborate your problem a bit further? Are you able to see the splash image on the screen on bootup? This will help us to understand your problem better.

Thanks & Regards,

Hirak.

0 user6201499 over 4 years ago in reply to Hirak Biswas

Prodigy 200 points

Hello:

Now I am not connected to the optical machine structure, not a complete projection device, but a DMD chip. I can hear the sound of DMD action every time I turn on the machine, but I use the test picture to observe that there is no change on the DMD mirror

0 Mayank Khandelwal over 4 years ago in reply to user6201499

TI__Genius 9971 points

Hi User,

Please answer the following questions -

1. Is the ASIC booting up properly ? - You can confirm this by probing HOST_IRQ.

2. Are you able to see the test image on DMD?

3. Are you able to communicate to the controller through GUI?

Regards,

Mayank

0 user6201499 over 4 years ago in reply to Mayank Khandelwal

Prodigy 200 points

All control signals of DMD are normal, ASIC is started normally, USB communication is normal, i.e. there is no picture display and test picture is not displayed

0 user6201499 over 4 years ago in reply to Mayank Khandelwal

Prodigy 200 points

All control signals of DMD are normal, ASIC is started normally, USB communication is normal, i.e. there is no picture display and test picture is not displayed

My problem now is that I can't see the test image

0 Navneet Singh over 4 years ago in reply to user6201499

TI__Expert 4610 points

Hi User,

Looks like you have two threads running in parallel for the same issue. i am closing this thread and we can continue on other thread (https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/868398)to resolve your issue.

Thanks,

Navneet

Bluetooth®︎

Bluetooth forum

DLP4710EVM-LC：Dlp4710 can't display test picture