We have a board with ADV7401 decoder and we need to config it in the following mode:
- The input signal is RGB with sync on green, PAL format, 768x576 visible pixels.
- The output data should be BT.656 8 bit 4:2:2 YCbCr .
The firs question is about physical connection:
In typical connection diagram of the chip (see attached file) mentioned pins AIN1,AIN2,AIN3 or
AIN7,AIN8,AIN9 as possible inputs for RGB signal. However, in datasheet manual mentioned pins
AIN1,AIN4,AIN5 or AIN2,AIN3,AIN6 as inputs of YPrPb signal which can be processed like SCART RGB
input. The question is what is the physical pin connection should be and which pins I should config as input in
the I2C register 0x00.
The second question is about square pixel mode (768x576 visible pixels)
I know, that ADV7401 does not support this mode as a standard mode,
but I know that this is possible to config the CP for non-standards modes of operation
("ADV740xA Component Processor Non-Standard Video Formats" document).
In addition, I found on this forum the following possible solution: http://ez.analog.com/thread/17426.
But it is not working for me.
Do you have the exactly script for the needed configuration ?