TDA4VM: CSIRX receive data error

xie jc

Part Number: TDA4VM

Dear TI experts,

Our customer needs to debug a new surround view camera(the number of cameras is 4). The image information about the camera is as follows: 1920 * 1536, 30fps, yuv422 8bits, 4lane.

And now we can detect the mipi signal at max96722, but the usecase has been hang in the vxWaitEvent function.

I modify laneBandSpeed from TIVX_CAPTURE_LANE_BAND_SPEED_1350_TO_1500_MBPS to TIVX_CAPTURE_LANE_BAND_SPEED_2000_TO_2250_MBPS, it's still hanging.

I also read register 0x04504060 value is 0x10000000,0x04504048(CSI0) value is 0x00222206.

Is there any other CSIRX code modify that I need to concern about?

Regards.

over 3 years ago

0 Brijesh Jadav over 3 years ago

TI__Guru**** 494515 points

Hi xie jc,

i think you have enabled camera earlier with CSIRX, isn't it? Are you making sure that virtual channel id, CSI data type, lane speed, lane polarity, number of lanes are matching with the deserializer output?

Regards,

Brijesh

0 xie jc over 3 years ago in reply to Brijesh Jadav

Expert 2410 points

Hi Brijesh，

Brijesh Jadav said:
i think you have enabled camera earlier with CSIRX, isn't it?

Yes，it is.

Brijesh Jadav said:
Are you making sure that virtual channel id, CSI data type, lane speed, lane polarity, number of lanes are matching with the deserializer output?

In fact, the same usecase can normally receive 720p camera data. The only difference is that the camera data is changed from 720p to 3M，I'm worried about whether there are other modifications besides these parameters(virtual channel id, CSI data type, lane speed, lane polarity, number of lanes) after the data volume increases.

Regards,

0 Brijesh Jadav over 3 years ago in reply to xie jc

TI__Guru**** 494515 points

Hi xie jc,

For 3MP camera, is there a change in the lane speed? What is the lane speed that you are enabling? Also have you enabled deskew calibration sequence in the deserializer? If not, can you try enabling it?

Regards,

Brijesh

0 xie jc over 3 years ago in reply to Brijesh Jadav

Expert 2410 points

Hi Brijesh,

It's useful for your suggestion.

Close this thread,please.

Regards.

0 Brijesh Jadav over 3 years ago in reply to xie jc

TI__Guru**** 494515 points

Thanks, closing this ticket.

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TDA4VM: CSIRX receive data error