Category: Hardware
Product Number: ADV7850
Hi Team,
We are experiencing an issue with the ADV7850 in Sync on Green (SOG) mode. While the same video timing parameters produce a clear display in VGA mode, the SOG mode results in noticeable ghosting, which affects image recognition.
We have provided the following chart to customer for confirmation. And you can find that CH1_SYNC_SRC[1:0](0x85) in ADV7850 has no option "11". They used "00 - Autodetect Mode" and read back CH1_CUR_SYNC_SRC[1:0]="11".
In this case, SOG mode was recognized by ADV7850 successfully. (cp_current_sync_sorc=b'11')
Following the chart below for confirmation. And you can find that CH1_SYNC_SRC[1:0](0x85) in ADV7850 has no option "11". They used "00 - Autodetect Mode" and read back CH1_CUR_SYNC_SRC[1:0]="11".
Could you advise if there are any specific settings or additional processing steps required to improve display quality under SOG mode?
Thank you for your guidance!
Bruce Tsao