DS90UB964-Q1: connect 4 sets DS90UB913A camera, setting

Hi, Ja,

From your description, it sounds that the OV's camera module can work well but IX19's camera cant run up in your system, correct?

if yes, pls check:

1. For UB933/UB964, our serdes just provide one link to transmit the video signal from sensor/ISP to the processor which sends the video output for display panel, so pls check if the OV's camera and IX19's camera can both match the processor's video input request?

2. For UB933 / UB964, the UB964 needs have correct video format setting, such as RAW10 or RAW12, data type (raw12 or yuv422?), vsync. and hsync. polarity etc., you need set it correcty, pls check the reference code in page22 (http://www.ti.com/lit/ug/snlu177/snlu177.pdf)

3. after you have correct reg. setting in ub964, you can check the reg. 0x4c/0x4d/0x4e and 0x73/74/75/76 of UB964 (read for more times), any error is reported or the video format is decoded correctly inside UB964's CSI2 port? If the link has error, it means the link has issue (either jitter margin issue or the sensor/isp output format mismatches with UB964's reg. setting (0x6x ~0x7x, example in page22).

after you check that ub964's registers have no issue, but the panel still has no output, it could be the ISP setting and  the processor's mismatch issue.

regards,

Steven

Hi Steven,

Due to SONY sensor is using 913A and we have issue to activate 4 camera module in 964. Due to you did not mention 913A, Would you please give a hand to advise how we change our 913A setting step by step.

Thanks

Ja

Hi Ja,

For UB913a,, it has no special setting request. But for UB964, it should know which parallel pins of UB913a are used? then you can configure UB964's reg. 0x7c accordingly to map the video signals to CSI2 port. Also, some cameras maybe is designed to be controlled by UB913a's GPO pins, for these cases, you should need how the camera is designed, then you can configure the UB913a's GPIO register accordingly.

best regards,

Steven

Hi Steven,

As mentioned earlier, we set one camera related TI964 registers and display correct image to our ECU system.

After we want to set the registers of 4 channels cameras, but is still does not work.

Then, we back to check the register of one camera(TI913A) shown as following:

It seem 0x4D~0x4E registers are abnormal.

Could you help us to review and resolve this issue?

Ja

Hi,

Can I have your feedback for this?

Ja

Hi Steven,

Could you give a hand to review the attached file and give us your suggestion?

Ja

設定frame sync.docx

Hi Steven,

Could you give a hand and give us your comment?

Ja

Hi Sir,

The attached show our latest information, please help to review that and give us your suggestion.

Ja.

2376.TI964 _ ISX019 issue.docx

pls refer to https://e2e.ti.com/support/interface/f/138/t/778547 and https://e2e.ti.com/support/interface/f/138/t/804906, maybe this issue has no solution.

JA,

I had given your example in my last reply, that is in our 964evm user guide, page22. You can refer to the script setting.

In your case, the forwarding is sync. mode, please secure that the issued camera module also can support the sync. mode, here, it sounds the camera module doesn't support the sync. mode (you need check the reg. 0x21).

as mentioned, if only one camera is used, it is synchronized by itself, so the 1pcs Sony camera should work well. but for the 4 channels, if Sonys camera is not designed as sync. mode (it is dependent on your camera vendor), then ub964 can't accept it well, and the buffer would be overflowed.

also, as mentioned, when you read the registers, you should select the port / channel in reg. 0x4c, but it sounds you always make a mistake when set reg. 0x4c before you dump the ub964's register.

Steven