I have a ADV734x evaluation board with an ADV7341 installed on it. I am trying to output color bars on DAC4 in SD NTSC CVBS format. For some reason only black/white/grey bars are being transmitted.
I'm setting the following registers using I2C (from the datasheet - internal test pattern)
The datasheet says that writing 0x24 to address 0x02 changes the color bars to black and white, but I am not writing to this register. I have also written to address 0x02 to clear bit 2 as well, with no change.
I am not doing any configuration for the other chips on the board. There is a 27MHz clock from the on-board ADV7180 that I have jumpered to the ADV7341 CLKIN_A.
Am I missing something? Why is the output not in color?