AnsweredAssumed Answered

ADV7441a CVBS in BT.1120 out

Question asked by JamieW on Mar 8, 2016
Latest reply on Jun 17, 2016 by mattp

Hello

 

I have an ADV7441a working fine with YPrPb 720p input and 16bit BT.1120 output but now I'm trying to get PAL input to work and don't seem to get any output.


I have CVBS video connected to AIN10 and an i.mx6 connected to the digital output ports (the same as for the component input)

 

I am setting the following registers:-

i2cset -f -y 2 0x20 0x00 0x0E

i2cset -f -y 2 0x20 0x03 0x09

i2cset -f -y 2 0x20 0x3A 0x07

i2cset -f -y 2 0x20 0xF3 0x0F

 

Leaving the rest in their reset defaults.

 

When querying 0x13 status 0xed is returned which looks like the CVBS is correctly identified (H lock, SD 50Hz, CVBS, standard field len, interlaced, PAL SW LOCK)

 

So I think the output is the issue however this set to the same value as works with the component input.

 

Any ideas?

 

Thanks

 

Jamie

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