Please provide us the configuration details for YUV & RGB input configuration settings for ADV7181C.
Here's a set of scripts for various modes of operation.
Thank you...! Will check and let you know!
Our input format is RGB with SOG (Sync on Green) and output is 8bit YPrPb 422, Could you please suggest the configuration setting for this scenario? Which you have sent is having only SCART RGB settings.
These are the only tested scripts we have. I would start with the SCART script and then adjust the sync slicer to use SOG. Check out the manual paragraph 7.4.3, Also SYN_SRC[1:0] = 11
I use the ADV7181C with SD resolution RGB SOG video.
The hardware connections are:
Green video goes to SOG input via a 1nF capacitor, also connects to AIN2/AIN6
Red video goes to AIN3/5
Blue video goes to AIN4.
We used the Analog devices SCART RGB script but forced RGB mode.
The changes we made were:
42 00 01 ; INSEL= CVBS on AIN2 sync source.
42 ED C4; Force static switching and use RGB video.
42 2B A1; Ensure the Colour kill function is disabled.
42 F1 0D; Select SD RGB on AIN4, AIN5 and AIN6
We used a 16 bit output because that's what the FPGA accepted, I seem to remember that the RGB mode uses the CP core, which outputs 12/16 bits, not 8 bits. Can the ADI experts confirm this?
1) I assume you have 100nF caps in the RGB lines as shown in the reference schematic.
2) how are you programming 0xC3 and 0xC4. They control which analog input goes to which ADC.
1) Yes we have 100nF AC coupling capacitors on the RGB inputs.
2) Manual muxing control is:
42 C3 62 ; Connect ADC0 to AIN2 and ADC1 to AIN6 (GREEN)
42 C4 F5 ; Connect ADC2 to AIN5 (RED)
42 F3 4F ; Connect ADC3 to AIN4 (BLUE)
The input configuration was wired as described as the module only has 3 signal pairs that have to support NTSC Composite, NTSC S-Video (Y/C), NTSC RGB and SVGA, the latter two types have Sync-On-Green.
We are using ADV7181c to convert component video to BT.656 format. We tested with the
script provided in the sample scripts "##CP 720p## :720p/60Hz YPrPb In 16Bit 422 EAV/SAV Out Encoder:".
But we are getting dark bluish coloured video. Can u pls help with script for
both 16 bit and 8 bit output(BT.656) from video decoder for component input
Thanks in advance
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