HelloI am looking for the Sync and DE register settings to maintain 1080p25. In the manual there is only1080i25 or 1080p24. Another thread discussing the same problem was marked as answerded butI couldn't find any solution for this problem there.Thanks!KLaus Schneider
Hi, As per expert comment, "you can generate the DE generation settings for them from the CEA standards for those formats". And also refer ADV7511W programming Guide for more details.
I beleive you referred the below thread, ez.analog.com/.../271396Thanks,Poornima
Hi PoomimaCan you verify the attached values for a 1080p25 signal?Reg: Value0x17 0x030x30 0x840x31 0x020x32 0xc00x33 0x100x34 0x050x35 0x2f0x36 0xe90x37 0x0f0x38 0x000x39 0x430x3a 0x80When reading register 0x3d I get 0x21 and from 0x3e its 0x84.So both registers identify the correct format of the video source, but I get novideo on the monitor. When I disconnect the camera, the auto-sync is starting andthe monitor shows the video format by displaying 1080p25 on the screen, otherwise 'no signal'.Thanks for your help!Kind regardsKlaus Schneider
Your above register configuration seems different with recommended settings.
Please crosscheck your configuration with recommneded settings table 25,26,27,28 for DE generation, sync adjustment and embedded sync processing for 1080i30 & 1080i25
And also crosscheck with low refresh rate detection register 0xFB[2:1] for 1080p25.
Note: Registers 0x35 – 0x3A and 0xFB are used to define the DE. Registers 0xFB,0x35 and 0x36[7:6] define the number of pixels from the Hsync leading edge to the DE leading edge.
HiThanks for your message, but on the tables 25,26,27,28 there is no 1080p25 signal listed.So I tried to get the values like described on side 46 of the programming guide and from the CEA_861 description of 1920x1080p@25Hz(Format33).So the calculated values for Reg.0x35 - 0x3a are equal to 1080p50Sync adjustment registers are:0xd7-->0x840xd8-->0x020xd9-->0xc00xda-->0x140xdb-->0x050x17--> 0x03Register 0xFB --> 0x40 (for 25Hz)I rechecked it but can't find an error. Do you have a chance to verify the values?Thanks and kind regardsKlaus Schneider
But on the tables 25,26,27,28 there is no 1080p25 signal listed ?
As per expert comment,the section that does for 1080i30 & 1080i25(table25,26,27,28) can be use for 1080p25. Refer here https://ez.analog.com/video/f/q-a/9146/adv7513-scripts-for-1080p25-1080p29-30-formats/271396#271396 Please try with above recommended configuration on your side.