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ADV7280 Script settings question

Question asked by JerryS on Sep 6, 2015
Latest reply on Sep 10, 2015 by JerryS

Hello,

 

I have reference ADI script setting V4.5 from ADI EZ.

According to my required spec, I checked "I2P- NTSC In Ain1, YPbPr Out(480p EAV/SAV)" from script.

I found Reg 0x13 is not belong INTRQ related settings, and Reg 0x13 is READ ONLY status register.

Is it something wrong typo?

2nd, there are many ADI recommendation write can't be found from ADV7280-UG637 user guide.

Why does ADI need to set these recommendation registers?

 

 

##CVBS INTERLACED TO PROGRESSIVE##

:I2P - NTSC In Ain1,YPrPb Out (480p EAV/SAV):

delay 10 ;

42 0F 00 ; Exit Power Down Mode [ADV7280 writes begin]

42 00 00 ; CVBS in on AIN1

42 0E 80 ; ADI Required Write

42 9C 00 ; ADI Required Write

42 9C FF ; ADI Required Write

42 0E 00 ; Enter User Sub Map

42 03 0C ; Enable Pixel & Sync output drivers

42 04 07 ; Power-up INTRQ, HS & VS pads

42 13 00 ; Enable INTRQ output driver

42 17 41 ; Enable SH1

42 1D 40 ; Enable LLC output driver

42 52 CD ; ADI Required Write

42 80 51 ; ADI Required Write

42 81 51 ; ADI Required Write

42 82 68 ; ADI Required Write

42 FD 84 ; Set VPP Map

84 A3 00 ; ADI Required Write [ADV7280 VPP writes begin]

84 5B 00 ; Enable Advanced Timing Mode

84 55 80 ; Enable the Deinterlacer for I2P [All ADV7280 writes finished]

56 17 02 ; Software Reset [Encoder writes begin]

56 00 9C ; Power up DAC's and PLL

56 01 70 ; ED at 54MHz input

56 30 04 ; 525p at 59.94 Hz with Embedded Timing

56 31 01 ; Pixel Data Valid [Encoder Writes finished]

End

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