TDA4VM: After TDA4VL receives RAW data and processed by isp modular, can CSIRX directly transmit data to CSITX through physical channel?

Hi Li,

What is the usecase for sending CSIRX data directly for CSITX? Since they are RAW data, they would required to be processed in ISP. So why do you need them to go to CSITX before ISP? 

Yes, ISP does support YUV422 output. 

Regards,

Brijesh

hi  Brijesh

   It is not that CSIRX goes directly to CSITX, but the data of csitx is processed by isp and then directly output to CSITX  through the physical channel, without going through the cpu. The purpose of doing this is :we need to reduce the time of camera data to ivi.

After the image data is processed by ISP, it is impossible to go to CSIRX again, right?

Hi lify,

Yes, after ISP processing, it is not possible to send data to CSITX directly. It has to go via DDR. So frame will be saved in DDR from ISP/VISS and then it can be read back by CSITX and can be sent out.

There is no direct physical channel. 

Regards,

Brijesh

hi  Brijesh

    For YUV sensor, is direct physical channel that from csirx to csitx  supported?

Hi lify,

From the HW point of view, yes, CSIRX can be connected to CSITX (may have some limitations), but not yet supported in SDK. 

Regards,

Brijesh