PROCESSOR-SDK-DRA7X: 4ch mix in/BT.1120 16bit to VIP Capture

Intellectual 680 points

Part Number: PROCESSOR-SDK-DRA7X
Other Parts Discussed in Thread: TDA2

Dear Sir,

I have a

4 Channel video sensor input to one video decoder.
This decoder will output one channel YUV422 BT.1120 16bit 74.25MHz to VIP captuer in TDA2.
use line mixed method

I need to confirm this kind application had verified, and the performace is fine.

And, please let me know how to cahnge the VIP setting on PROCESSOR_SDK_VISION_03_05_00_00.

Are these parameter coorrect?

SYSTEM_VIFM_MCH_LINE_MUX_ES
SYSTEM_VIFW_16BIT

Thanks!

over 6 years ago

0 Brijesh Jadav over 6 years ago

TI__Guru**** 477995 points

Hi Chen,

Any specific reason for using line mux mode? You could connect multiple input to different input port.

Rgds,

Brijesh

0 ks over 6 years ago in reply to Brijesh Jadav

Intellectual 680 points

Hi,

Becasue the source is form MIPI, so only line mux mode.

Why do you suggest to connect multiple input to different input port?

0 Brijesh Jadav over 6 years ago in reply to ks

TI__Guru**** 477995 points

But which device is converting from MIPI to parallel output?

Rgds,

Brijesh

0 ks over 6 years ago in reply to Brijesh Jadav

Intellectual 680 points

Hi,

we use FPGA to convert MIPI to BT.1120x1

0 Rishabh Garg over 6 years ago in reply to ks

TI__Guru 55685 points

Hi,

Can you use pixel mux mode?

Regards,

Rishabh

0 Brijesh Jadav over 6 years ago in reply to ks

TI__Guru**** 477995 points

Hi,

Can it output to multiple output ports?

Regards,

Brijesh

0 ks over 6 years ago in reply to Rishabh Garg

Intellectual 680 points

Hi,

Firstly, please let me know why can't use line mux mode,

then tell me the better solution.

0 Brijesh Jadav over 6 years ago in reply to ks

TI__Guru**** 477995 points

Hi Chen,

Line mux mode is not really recommended..

The other option is to use pixel mux mode. Is it possible to get the output in pixel mux mode?

Regards,

Brijesh

0 ks over 6 years ago in reply to Brijesh Jadav

Intellectual 680 points

Hi,

We refer the doc - TDA2x_Tech_Reference_Manual http://www.ti.com/lit/ug/sprui29f/sprui29f.pdf

In 9.4.5.8.4 Line Multiplexing, there is descibed the Line Mux mode is supported.

It's impossible to change to pixel mux mode on current board schematic design.

Please confirm line mux mode is verified, and performance is fine.

We only use pixel mux mode in mass production, so this information is verry important for us.

0 Brijesh Jadav over 6 years ago in reply to ks

TI__Guru**** 477995 points

Hi Chen,

Line mux is not much tested. I am not sure there could be challenges in bringing up line mux mode..

Since you are already considering pixel mux mode for mass production, why dont you use it for the bringup also?

Rgds,

Brijesh

0 Rishabh Garg over 6 years ago in reply to Brijesh Jadav

TI__Guru 55685 points

Hi Chen,

Current driver does not support line mux so please use pixel mux as suggested previously.

Regards,

Rishabh

0 ks over 6 years ago in reply to Rishabh Garg

Intellectual 680 points

Hi,

Thanks for your comment.

Processors

Processors forum

PROCESSOR-SDK-DRA7X: 4ch mix in/BT.1120 16bit to VIP Capture