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how to forbidden 7441a transfer audio signal in HDMI mode?

Question asked by greatmike@hotmail.com on Jul 4, 2012
Latest reply on Jul 5, 2012 by DaveD

hi,buddy

    My system consist of a 7441a and a 9889b.  signal--->7441a----->9889b----->display

     how to forbidden 7441a transfer audio signal in HDMI mode? I do not need audio.

 

   I use script  ADV7441A_ADV7441A@_ADV7441AVDP_ADV7441AHDMI_ADV7341-VER.MB2.0.TXT, as below:

 

##HDMI PORTA out through DAC/HDMI ##

:Port A  RGB/YPrPb 444 25Mhz <  f < 160MHz 30Bit IN RGB 444 OUT through DAC/HDMI Audio through Tx FS = 48KHz:

42 03 0C ; Disable TOD

42 05 06 ; Prim_Mode =0110b HDMI

42 1D 40 ; Disable TRI_LLC

42 37 00 ; Disable PCLK

42 6B E2 ; Setting cp_op_sel = 2 & Enable DE

42 68 F2 ; Auto CSC , RGB 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 58 ; Set MCLKOUT to output 128fs

6A 1D 04 ;  & Set Unmute Delay to 1_5 sec.

6A 3C 42 ; Set MCLKOUT to output 128fs

6A 3D 40 ; Change the VCO range for the audio PLL

6A 5A 01 ; Reset Audio Pll

/////50 22 01 ; HDMI Powerup 01

//////50 20 17 ; HPD

//////50 20 07 ; HPD

//////50 10 07 ; Mux Signals to Tx and DAC

7A 41 10 ; Power Up

7A A1 7C ; Power down TMDS lines

7A AF 16 ; Tx in HDMI Mode

7A 01 00 ; Set ACR 'N' value at 6144 (48KHz)

7A 02 18 ; Set ACR 'N' value at 6144 (48KHz)

7A 03 00 ; Set ACR 'N' value at 6144 (48KHz)

7A 0A 0C ; External CTS.MCLK Ratio, SET FOR 128FS as is DECODER.

7A 15 20 ; 24-bit, 444 YPrPb input, 48kHz Fs

7A 50 20 ; 2 ch mode

7A 17 02 ; Aspect ratio 16to9

7A 44 F8 ; spdif_en

7A 96 C4 ; Mask interrupts

7A 98 03 ; RSVD but Must Write

7A 9C 38 ; RSVD but Must Write

7A 9D 61 ; RSVD but Must Write

7A A2 87 ; RSVD but Must Write

7A A3 87 ; RSVD but Must Write

7A A5 C0 ; RSVD but Must Write

7A AB 00 ; RSVD but Must Write

7A AF 16 ; HDMI Mode Enable

7A BA 60 ; Pos Edge Clk

7A A1 00 ; Power up TMDS lines

End

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