TDA4AEN-Q1: CCM trigger condition

Taylar Huang

Intellectual 400 points

Part Number: TDA4AEN-Q1

Tool/software:

Dear TI experts,

Recently we want to add photospace for CCM tuning.

For example:

1st trigger using DCC gain 1 ~ 16

2nd trigger using Color temp 2000K~3000K, 4000K~5000K, 6000K~7000K

1st trigger using DCC gain 17 ~ 1024

2nd trigger using Color temp 2000K~3000K, 4000K~5000K, 6000K~7000K

However, it seems to have effect only for Color temp photospace. May I know if current source code defines region only Color temp?

3 months ago

0 Gang Hua 3 months ago

TI__Guru 59380 points

Hi Taylar,

Taylar Huang said:
1st trigger using DCC gain 1 ~ 16

2nd trigger using Color temp 2000K~3000K, 4000K~5000K, 6000K~7000K

1st trigger using DCC gain 17 ~ 1024

2nd trigger using Color temp 2000K~3000K, 4000K~5000K, 6000K~7000K

It looks like you would like to interpolate CCM for bright and dark scenes separately.

I believe the current CCM interpolation is done in the links below for 1D (CCT) interpolation (ignores the digital gain).

https://git.ti.com/cgit/processor-sdk/imaging/tree/kernels/hwa/vpac_viss/vx_vpac_viss_target_dcc.c?h=main#n808

https://git.ti.com/cgit/processor-sdk/imaging/tree/algos/dcc/src/parse_data.c?h=main#n1205

You would need to make some code changes so that interpolation is done according to digital gain.

Processors

Processors forum

TDA4AEN-Q1: CCM trigger condition