Two way DS90UB953 camera ,one way 960 of Soc

Hello,

By chaotic do you mean that the resolution is unstable?  If so, it is typically caused by an issue where the 960 is trying to map multiple video streams to the same VCID.  Select each individually by changing register 0x4C and change the value in register 0x72 to something unique to that port.

Regards,

Nick

Dear Darash:

This is a Module diagram，At present, we only use 960 port 0. Do you mean to add a port 1? Which register configuration needs to be changed? Do VC channels need to be distinguished？Single channel camera debugging is successful

Thank you for your help!

Hi Zhang,

Yes it is important to set VCIDs correctly, especially if you are using a repeater circuit.  You need to set register 0x72 in the left-most 960 to map all data coming from each 953 to different VCIDs.  Then you need to set 0x72 on the right-most 960 to map the VCIDs received from the 953 accordingly as well.

Regards,

Nick

Dear Nick,

Left-most 960 is OK, we are debuging right-most 960, set 0x72 value is 0xe4.All four VC channels should be open. Do you need to configure other properties? At present, it is still unable to plot normally from port 0.

Regards!

Hello,

If you were to connect the left 960 to the SoC it would work?  But if you connect the right 960 to the SoC it fails?  If that is the case then we may have some issues with the limitations of the devices?  What resolution cameras are you using and can you provide registers from the right-most 960 and 953?

Regards,

Nick

Hi ,

The left 960 can work ,but the right 960 fails ,the resolution of both cameras is 1920 * 1080, 

0x4d Fail 0x03 Success 0x03 
0x4e Fail 0x0d Success 0x0c 
0xdb Fail 0x6a Success 0x08 
0x7a Fail 0x00 Success 0x00 
0x4c Fail 0x01 Success 0x01 
0x32 Fail 0x01 Success 0x01 
0xe4 Fail 0x00 Success 0x00 
0x70 Fail 0x1e Success 0x1e

Regards,

Gerrard

Hi Gerrard,

Can you share all the registers from both 960s?  I am still thinking this is an issue with the VCIDs.  Also have you tried to use the patgen tool internal to the device?

Regards,

Nick

Hi Nicholas,

Can you provide the patgen tool of 1920 * 1080 ? Is there any relevant tool to export all register information at one time? Can you provide me?

Thank you for your reply!

Hi Nicholas,

I use port 0 and transmitter 0. According to the datasheet, there should be no additional configuration and automatically map two groups of virtual channels.

HI Nicholas,

At present, the virtual channel buffer output from our virtual channel is unstable, The width is 3920 and the height is constantly changing. I hope the height is 1080..I don't know whether the problem is decoding or csi-2 protocol interface.

This is a binocular camera with two inputs and one output.

Thank you for your help!

Hey Zhang,

Since tomorrow 4/15 is a US holiday for TI, we will resume activity on this thread on Monday 4/18. Thank you for your patience

Best Regards,

Casey 

Hi Casey ,

Any update?

I also provided some registers. 0x73 and 0x74 are constantly changing .

0x1f  fail 0x02 success 0x06
0x23 fail 0x00 success 0x00
0x37 fail 0x00 success 0x00
0x02 fail 0x1e success 0x3e
0x35 fail 0x00 success 0x01
0x21 fail 0x03 success 0x83

Zhang,

Reading through this thread I am struggling to clearly understand your issue here. Can you please try to rephrase your question with more detail or diagrams so we can understand what the problem is exactly?

Best Regards,

Casey