Dear Sir:
When we use the ADV7511W for HDMI output, we can't output it directly.Could you help to check it if any setting mistake?
*****
Source(RGB888)==>SCALER==>(BT.656)==>ADV7511W==>(HDMI)
Ps.BT656 : 8-bit 422 2x clock embedded syncs
Input Video Timing Form~
Pixel Rate [Hz] 32,8MHz
Htotal [px] 1360 (=1280+20+30+30)
Hdisplay [px] 1280
Hf [Hz] 24,124 (= 32,809,800 / 1360)
HSync + (rising edge)
HSyncLength [px] 20
HFrontPorch [px] 30
HBackPorch [px] 30
Vtotal [px] 804 (=720+24+30+30)
Vdisplay [px] 720
Vf [Hz] 30.006 (=32,809,800 / 1360 / 804)
VSync + (rising edge)
VSyncLength [px] 24
VFrontPorch [px] 30
VBackPorch [px] 30
H:V 16:9 (=1280:720)
***************Register setting***********************
0x01 00 ; Set N Value(6144)
0x02 18 ; Set N Value(6144)
0x03 00 ; Set N Value(6144)
0x15 14 ; 8-bit 422 2x clock embedded syncs
0x16 37 ; 8 bits, Style 2
0x17 00 ;
0x18 46 ;
0x40 80 ; General Control packet enable
0x41 10 ; Power up control
0x48 00 ; evenly justified
0x49 A8 ;
0x4C 00 ; 8 bit Output
0x55 40 ;
0x56 08 ;
0x96 20 ;
0x98 03 ;
0x99 02 ;
0x9A E0 ;
0x9C 30 ;
0x9D 61 ;
0xA1 00 ;
0xA2 A4 ;
0xA3 A4 ;
0xA4 08 ;
0xA5 04 ;
0xA6 00 ;
0xA7 00 ;
0xA8 00 ;
0xA9 00 ;
0xAA 00 ;
0xAB 40 ;
0xAF 16 ; Set HDMI Mode
0xBA 60 ;
0xD1 FF ;
0xDE 9C ;
0xE0 D0 ;
0xE4 60 ;
0x17 03 ; gen de
0xF9 00 ;
//Enable 7511 sync regenerators
0x30 07
0x31 81
0x32 40
0x33 78
0x34 18
0x35 07
0x36 AE
0x37 0A
0x38 00
0x39 2D
0x3A 00
0xD7 07
0xD8 81
0xD9 40
0xDA 78
0xDB 18
0xDC 00
0xDD 00
0xFA 00
0xFB 0E
Hi,
Have you tried with available format sync regenerators for embedded sync,which has mentioned in table28(Register Settings for Embedded Sync Processing) in ADV7511W programming guide. If so have you observe the same failure case,the one you mentioned above ?Please crosscheck your sync adjustment configuration with below attached settings.
5305.bt656-ADV7842_7511-hdmi.txt.zip
And also when compare with reference configuration, Your sync polarity configuration seems different in register 0x17.Please crosscheck.
Thanks,
Poornima
Dear Poornima:
Thanks for your support.
1. We used Table28 and 0x17[6:5] for cross-testing, but it still no improvement.2. In addition, when I set the 0xAF[1] to HDMI mode and used HDMI analyzer to test.Then we found that it show the DVI mode. According to your experience, do you know what kind of event to affect?
Thank you very much.
Hub~
Please try to configure below registers as per reference script.
72 16 79 ; 8 bits, Style 1 72 17 61 ; gen de
And also have you face the same problem for available format provided in table28(Register settings for embedded sync processing)?