AnsweredAssumed Answered

ADV7611 with qHD (960x540)

Question asked by SpectoFun on Dec 27, 2013
Latest reply on Jan 16, 2014 by SpectoFun

Hi all,

I am fairly new to the ADV7611 development, and currently I am trying to use it with a qHD resolution (not a VESA standard) for a mobile application. I used the Avantiv editor to create a custom EDID and the computer recognized it fine. However, the clock is calculated to be around 36Mhz but checking the LLC line under scope I only got 25.17 Mhz, and the screen output is black with a red line at the bottom.

 

Is there a recommended setting for it to operate in this mode, does anyone else have this problem?

Here is my initialization code:

 

        {CP_ADDRESS,       0x6C,    0x00},  //ADI recommended write

        {HDMI_ADDRESS,    0x6F,    0x0C},  //ADI recommended write

        {HDMI_ADDRESS,    0x85,    0x1F},  //ADI recommended write

        {HDMI_ADDRESS,    0x87,    0x70},  //ADI recommended write

        {HDMI_ADDRESS,    0x57,    0xDA},  //ADI recommended write

        {HDMI_ADDRESS,    0x58,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0x03,    0X98},  //Set DIS_I2C_ZERO_COMPR 0x03[7]=1

        {HDMI_ADDRESS,    0x4C,    0x44},  //Set NEW_VS_PARAM 0x44[2]=1

        {HDMI_ADDRESS,    0x8D,    0x04},  //ADI recommended write

        {HDMI_ADDRESS,    0x8E,    0x1E},  //ADI recommended write

        {HDMI_ADDRESS,    0xC1,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC2,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC3,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC4,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC5,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC6,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC7,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC8,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xC9,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xCA,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xCB,    0x01},  //ADI recommended write

        {HDMI_ADDRESS,    0xCC,    0x01},  //ADI recommended write

        {HDMI_IO,    0x0B,    0x44},  //power up part

        {HDMI_IO,    0x0C,    0x42},  //power up part

        {HDMI_IO,    0x14,    0x7F},  //max drive strength

        {HDMI_IO,    0x03,    0x4C},  //24-bit SDR mode

        {HDMI_IO,    0x15,    0x80},  //disable tristates of pins

        {HDMI_IO,    0x06,    0xA0},  //VS out and DE, VS and HS

        {HDMI_IO,    0x19,    0x83},  //LLC DLL phase

        {HDMI_IO,    0x33,    0x40},  //LLC DLL enable

        {HDMI_IO,    0x02,    0x12},  //force full range RGB in-out

        {KSV_ADDRESS,   0x40,   0x81}   //Disable HDCP 1.1 features

Attachments

Outcomes