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TDA2PX /RTOS RGB 565 Interlaced output from LCD3

deepikateriar
Genius 5870 points

Part Number: TDA2P

Tool/software: TI-RTOS

Hi All,

We have D0-D15 ,Hsync, Field and Pix clock connected to LCD3 interface of TDA2PX.

I need RGB565 Interlaced output. I tried changing the scan format in chains_common.c  from SYSTEM_SF_PROGRESSIVE to SYSTEM_SF_INTERLACED.

I am getting Assertion from DSS

[IPU1-0] 9.724455 s: DISPLAY: Create in progress !!!
[IPU1-0] 9.724760 s: dispcore/src/vpscore_dss.c @ Line 1412:
[IPU1-0] 9.724852 s: Format(interlaced/progressive) conversion is not supported
[IPU1-0] 9.724943 s: dispdrv/src/vpsdrv_displayCore.c @ Line 304:
[IPU1-0] 9.725065 s: Set DSS parameter failed

Does LCD interface does not support Interlaced data?

Is there any way to output RGB 565 interlaced data from SoC

Currently I am using VSDK 3.05 version.

Regards,

Deepika

  • 0
    TI__Guru 55685 points

    Hi Deepika,

    You have not passed scan format correctly in IOCTL_VPS_DCTRL_SET_CONFIG.

    Please change scan format to interlaced here and try.

    Regards,

    Rishabh

  • 0 in reply to Rishabh Garg
    Genius 5870 points

    Hi Rishabh,

    Thanks for reply. I have passed the parameter for setting INTERLACED output in the function ChainsCommon_SetDctrlConfig()

    pPrm->deviceId = DISPLAYCTRL_LINK_USE_LCD;
    /* Changing the display port to LCD3 */
    pVInfo->vencId = SYSTEM_DCTRL_DSS_VENC_LCD3; //SYSTEM_DCTRL_DSS_VENC_LCD1
    pVInfo->outputPort = SYSTEM_DCTRL_DSS_DPI3_OUTPUT; //SYSTEM_DCTRL_DSS_DPI1_OUTPUT
    if
    pVInfo->vencOutputInfo.vsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;
    pVInfo->vencOutputInfo.hsPolarity = SYSTEM_DCTRL_POLARITY_ACT_LOW;

    /* Below are of dont care for EVM LCD */
    pVInfo->vencOutputInfo.fidPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;
    pVInfo->vencOutputInfo.actVidPolarity = SYSTEM_DCTRL_POLARITY_ACT_HIGH;

    pVInfo->mInfo.standard = SYSTEM_STD_CUSTOM;
    pVInfo->mInfo.width = displayWidth;
    pVInfo->mInfo.height = displayHeight;
    pVInfo->mInfo.scanFormat = SYSTEM_SF_INTERLACED

    I have passed it like this.  This function calls the IOCTL_VPS_DCTRL_SET_CONFIG. Is there any other method to pass the parameters.

    Regards,

    Deepika

  • 0 in reply to deepikateriar
    TI__Guru 55685 points

    Hi Deepika,

    Can you do a single step and check.

    Also you use use FVID2 macros while passing parameters to driver IOCTL.

    Regards,

    Rishabh

  • 0 in reply to Rishabh Garg
    Genius 5870 points

    Hi Rishabh,

    While debugging I found that 

    pathCfg->inFmt.scanFormat= 1   --------------pathCfg is the  pointer to VpsCore_DispDssParams

     pathObj->dispScanFormat =0 ------------------ pathObj is the pointer to VpsCore_DssPathObj 

    As these two are not equal I am getting above assertion.

    dispScanFormat =0 specifies Interlaced , Can you please tell me how to set inFmt.scanFormat to 1. 

     I am also checking at my end.

    Regards

    Deepika

  • 0 in reply to deepikateriar
    TI__Guru 55685 points

    Hi Deepika,

    Please see IOCTL IOCTL_VPS_DISP_SET_DSS_PARAMS.

    Vps_DispDssParams has inFmt where you need to set scanFormat.

    Regards,

    Rishabh

  • 0 in reply to Rishabh Garg
    TI__Guru 55685 points

    Hi Deepika,

    Is this issue resolved now?

    Regards,

    Rishabh

  • 0 in reply to Rishabh Garg
    Genius 5870 points

    Hi Rishabh,

    Thanks for your reply.

    With pObj->DisplayPrm.displayScanFormat = FVID2_SF_INTERLACED;  (Here  pObj --use case Object)

    we were able to set Interlaced output from display.Now the problem is that I need the data output from LCD3 interface to be BGR565i.

    Internally YUV420_SP is set.When we change this value to BGR565 we get assertion.

    My query is related to the thread https://e2e.ti.com/support/processors/f/791/t/803192

    This thread is still open.I need RGB 565i to input to ADV7393 Encoder.

    Regards,

    Deepika

  • 0 in reply to deepikateriar
    TI__Guru 55685 points

    Hi Deepika,

    Please mark the appropriate posts as "This resolved my issue" and close the thread,

    Kindly follow up on the ADV issue in other thread.

    Regards,

    Rishabh

  • 0 in reply to Rishabh Garg
    Genius 5870 points

    Hi,

    Thanks a lot Rishabh for your reply.

    Regards,

    Deepika