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CVBS signal tuning in DM365

Casper Hsieh
Prodigy 50 points

Hi, everyone

I took DAC2 in DM365 as CVBS output and set related registers as following:

CVBS.CVLVL = 0
CVBS.CSTUP = 1 for NTSC
CVBS.CSTUP = 0 for PAL

By color bar measurement, the chroma value is lower than standard value. If the gain for DAC2 is enabled and enlarged by registers  GAMCTL.DAFUL2 and DACAMP, the ampiltudes of lumi and chroma signals will be enlarged at the same time.
Problem1: Can the ampiltudes of lumi and chroma in CVBS signal be tuned separately in DM365?
Problem2: Can the ampiltudes of sync and burst in CVBS signal  be tuned in DM365?

Thanks!