AnsweredAssumed Answered

noise pixel on adv7441a

Question asked by bzeng on Jan 4, 2012
Latest reply on Jan 5, 2012 by bzeng

Hello, Currently I am using adv7441a chip on a project. Through hdmi input, adv7441a output the yuv pixels. but there a lot of noise pixel in the output frame. The following is the register setting.

 

42 03 08 ; Disable TOD 16-bit @ LLC2 4:2:2
42 05 06 ; Prim_Mode =0110b HDMI
42 1D 40 ; Disable TRI_LLC
42 6B C3 ; Setting cp_op_sel = 2 & Enable Field (Video out 16-bit 4:2:2)
42 68 F0 ; Auto CSC , YUV Out
42 BA A0 ; Enable HDMI and Analog in
42 C8 08 ; Digital Fine Clamp Start position
42 7B 0D ; Disable AV code Insertion
42 F4 3F ; Max Drive Strength
62 F0 10 ; ADI Recommended Write
62 F1 0F ; ADI Recommended Write
62 F4 20 ; ADI Recommended Write
6A 15 EC ; Disable these mute mask bits
6A 1C 49 ; Set MCLKOUT to output 256fs
6A 1D 04 ;  & Set Unmute Delay to 1_5 sec.
6A 5A 01 ; Reset Audio Pll

 

The attach file is the output frame, there are lots of nosie pixel around the text. Anyone can tell me where is wrong?

 

best regards

Attachments

Outcomes