I'm using EVAL-ADV7850EBZ to test out AVES3 scripts, with HDMI-in there is no issue - tested all HDMI input ports. While trying analog video in with analog audio, no audio at the output - only video.
Appreciate your help to advice. Thanks...
Are you supplying AC_MCLK pin (J11-16) with a 24.576MHz clock?
Yes. 24.576MHz clock has been applied.
Video ok, only problem is no audio.
Appreciate your advice.
Which script from the script file are you using?
What audio format do you want?
Is the amplitude to the ADC inputs correct?
Script from ADV7850ES2-Ver.3.08d_AVEB.
Tried 1-2a CVBS PAL SECAM 576i 422 out through HDMI and 1-3b CVBS PAL SECAM 576i 422 out through HDMI with Analog Audio(AC Mux1).
Video and audio source from DVD player.
Why you mention about audio format and amplitude of ADC inputs? do we need to change anything? my test source is dvd player.
When inserting audio into a video stream you need to configure N and CTS registers along with some other registers in the audio infoframe so the sink can extract the audio correctly. This is why I wanted to know what audio format you wanted to transmit. Stereo PCM is the most common format.
Also if you are inputting analog audio into the ADCs, the amplitude must be correct.
Yes. Stereo PCM.
Appreciate if you could help to advice on registers value.
As we are using eval board for this test, may I check with you how could we modify the input amplitude - input is DVD player, direct into eval board.
The DVD output will already have audio inserted in the HDMI stream. Are you trying to overlay a different audio on the video?
If so you need to look at scripts 6-1a and 6-1b
Retrieving data ...