Linux/DS90UB964-Q1: TI964 multi-channel camera synthesis problem

user5770265

Part Number: DS90UB964-Q1

Tool/software: Linux

Hello TI expert:
We currently use TI964, the single-channel camera (720p) picture is normal, the two-way camera can access the main control terminal to capture the picture, but according to the line, according to the frame, the analysis can not get the correct image, and the two-way camera is connected at the same time. When entering, read the 964 register 0x73 ~ 0x76 and the resolution is: 1280 *720, which is the resolution of a single camera. Please analyze the problem.

0x20 write 0xc0
0x21 write 0x1

thank a lot

over 6 years ago

0 Hamzeh Jaradat over 6 years ago

TI__Guru** 107740 points

Hello,

All registers from 0x4C till 0x7F are Port specific. that means registers 0x73 ~ 0x76 are indicating the info about the Port choosen in reg 0x4C.

0 user5770265 over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

TI expert:
Hello, at present, our two cameras use the same vc id. From the manual, the two camera images should be synthesized by line, so the value of 0x73 ~ 0x76 register should be 1280 * 1440, but currently read The resolution is still 1280 * 720.

0 user5770265 over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

TI experts:
Hello, when the two camera data is synthesized, how do I need to configure it to get the resolution of the two cameras?

0 Hamzeh Jaradat over 6 years ago in reply to user5770265

TI__Guru** 107740 points

Hello user5770265,

As I said, these registers are input signal related and showing the received data information per port. These are not output related. There is no register shows you the total number of lines at the output.

0 user5770265 over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

TI expert:
Hello, we currently use 964 external two cameras, both cameras use vc-0, you can collect image data, two cameras use different vc (c0 use vc-0, c1 use vc-1) The main control terminal cannot collect the image. What is the reason for the analysis?

thank.

0 Hamzeh Jaradat over 6 years ago in reply to user5770265

TI__Guru** 107740 points

Hello,

Can you sketch your data flow and the used components so that I understand your concern better? Thanks

0 user5770265 over 6 years ago in reply to Hamzeh Jaradat

Prodigy 50 points

TI expert:

Hello, the image data from sensor first to 913, 913 and then send the data to 964, 964 will receive the multi-channel image data, respectively, according to different vc output to mipi, the host according to different vc pairs of data Analyze.

0 Hamzeh Jaradat over 6 years ago in reply to user5770265

TI__Guru** 107740 points

Hello,

Have you assigned different VC to each RX Port? You do need to do that in reg 0x72 on the 960. Also you need to configure your video processor to be able to accept both data with two different VC.
Also have you forwarded the data coming from both RX Ports to one TX output (reg 0x20) on the 960?

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Linux/DS90UB964-Q1: TI964 multi-channel camera synthesis problem