TDA4VM: TDA4 ISP handle each channel's data separately, or does all the channels handle uniformly?

Hi Li,

Please find answer to your questions below.

lify said:

   1. If 4 serializers (raw format) are connected to a deserializer, and the surround view camera receives four channels of data each time, then, the ISP processes the received raw data, each channel is processed separately, or four are processed together？

ISP is memory to memory module, so it processes each channel separately. Since it is a single module, it cannot process all channels simultaneously. 

lify said:

 2. I checked the documentation and found that the VPAC module processes raw data, one pixel at a cycle, right?

Yes, this is correct. ISP is part of the VPAC and it can process one pixel per clock cycle. 

lify said:

    So if the data of the four cameras, some cameras have very dark ambient light, and some cameras have very bright ambient light, they can be processed well respectively, right?

Yes, it just requires different tuning/ISP parameters.

Regards,

Brijesh

hi  Jadav

Tanks a lot for your help! Is there any documentation about ISP debugging?

hi Li,

What kind of ISP debugging are you looking for? For ISP tuning, you can use offline DCC tool. If you want to debug code, you could use CCS+JTAG to debug the ISP code.. 

Regards,

Brijesh