data2/text/range/15001-20000/1244576.txt

Ticket Name: TDA4VM: Configure DPI0 to output BT1120

Query Text:
Part Number: TDA4VM Other Parts Discussed in Thread: TDA2 Hi team, SDK: ti-processor-sdk-rtos-j721e-evm-08_05_00_11 H/W design: VOUT0 connected externally to NVP6021, and BT.1120 switch to AHD output. And NVP6021 pin is defined as follows: TDA4VM <==> NVP6021 h/w connection： VOUT0_DATA2~9 connected to NVP6021 Y0~7 VOUT0_DATA12~19 connected to NVP6021 C0~7 These correspond to the data map mentioned in the manual: 1920*1080p 25fps was selected and the customer made the following modifications in SDK： app_init.c: appInit() prm.timings.hFrontPorch = 460U; prm.timings.hBackPorch = 110U; prm.timings.hSyncLen = 150U; prm.timings.vFrontPorch = 4U; prm.timings.vBackPorch = 34U; prm.timings.vSyncLen = 7U; prm.timings.pixelClock = 74250000ULL; app_dss_defaults.c: appDctrlDefaultInit() vpParams.dvoFormat = APP_DCTRL_DV_BT1120_EMBSYNC; app_dss_defaults.c appDssDefaultInit() The EVM uses VOUT0 to HDMI and the customer's design uses VOUT0 too, so they have modified the following under the code corresponding to the APP_DSS_DEFAULT_DISPLAY_TYPE_DPI_HDMI macro: else if(prm->display_type==APP_DSS_DEFAULT_DISPLAY_TYPE_DPI_HDMI) { appLogPrintf("DSS: Display type is HDMI !!!\n"); obj->nodeOverlayId = APP_DCTRL_NODE_OVERLAY2; obj->nodeVpId = APP_DCTRL_NODE_VP2; obj->nodeDpiId = APP_DCTRL_NODE_DPI_DPI0; obj->overlayId = APP_DSS_OVERLAY_ID_2; obj->vpId = APP_DSS_VP_ID_2; //yaogang modify //obj->videoIfWidth = APP_DCTRL_VIFW_24BIT; obj->videoIfWidth = APP_DCTRL_VIFW_16BIT; } NVP6021 Initialization: the registers of the NVP6021 have been set according to the configuration list given by the FAE. And please see the test: 1) The measured clock output is 74.25M with oscilloscope and it was good. 2) Enable the Colorbar test output of the NVP6021 and it display has no probelem. 3) Turn off the Colorbar test output of the NVP6021 and enable the TDA2VM Colorbar. dss_dctrl.h: Note: The screen identification signal was 1080p 25 for test item 2 and NTSC for test item 3. Could you help check is there any problem with the modification of the code above? And how to troubleshoot the issue next? Thanks. Best Regards, Cherry

Responses:
Hi Cherry, Above changes look to be fine. Can you please keep VideoIfWidth to be 24B, ie "obj->videoIfWidth = APP_DCTRL_VIFW_24BIT;" ? Also if the colorbar output is correct, can you please not connect any of the video pipeline and see if you are able to get correct background color from the overlay manager? You can try changing background color in overlay manager .. Regards, Brijesh

Hi Brijesh, Thank you for the support. 1) It's found that the code set the timing in csl_dssVideoPort.c 的CSL_dssVpSetLcdBlankTiming function. dvoFormat = BT1120 so enter 438 line else At the same time, scamFormat = FVID2_SF_PROGRESSIVE, hBackPorch hFrontPorch do not set the correspond register, only hSyncVal is being used when checking the code. So they modified prm.timings.hSyncLen = 720U; in app_init.c: appInit() (Sum of row blanking) Why is there no register setting for the blankCfg->vSyncLen field sync in the function? Test the TDA2 colorbar again, as shown below: The color is good, but there is a misalignment. 2) Using APP_DCTRL_VIFW_24BIT to test TDA2 colorbar is as same as the above figure. Thanks and regards, Cherry

Hi Cherry, For the embedded sync, ie BT1120 output format, there is no front porch or back porch. It just contains distance from EAV to SAV code and this can be specificied using hsyncLen and vsyncLen. Regarding VBP and VFP, they are just vertical blanking in BT mode. Please refer to below register description for more details. Regards, Brijesh

Hi Brijesh, As per the NVP6021 manual, app_init.c: appInit() modified timing as follows: And review the NVP6021 VOUT output signal through oscilloscope: 1) Enable the colorbar of NVP6021. 2) Turn off the colorbar test output of NVP6021 and enable the colorbar of TDA2VM. As you can see the cycles are the same, but the contents are different. So they suspected the output data from BT1120 is wrong and synchronization is good. Thanks and regards, Cherry

Hi Cherry, Are you sure that the BT1120 output is connected over vout0? Because, if i remember, it is not possible to get BT110 output on vout1. So can you please check and confirm? Regards, Brijesh

I am sure it is VOUT0 output. Here is a screenshot of part of our schematic diagram

There were a number of typos of TDA2VM in the previous description, but to correct this, TDA4VM is used.

” it requires two pixel clock cycles to send out one pixel.“ Could this be the problem? I'm looking at the TDA4VM datasheet and the code

Hi Gang Yao, When you say you are enabling color bar, can you please tell us where/how you are enabling color bard? Are you enabling it in the overlay managar? Which Video port are you using to connect to vout0? Can you please share the registers of this video port and register of overlay manager? Regards, Brijesh

gang yao said: ” it requires two pixel clock cycles to send out one pixel.“ Could this be the problem? I'm looking at the TDA4VM datasheet and the code This should not be an issue for BT1120 format, as this requires just one clock cycle to output a pixel. To confirm, can you please share VP and overlay manager's register dump? Regards, Brijesh

enable color bar vision_apps/utils/dss/src/app_dss_defaults.c :
appDctrlDefaultInit()
{
    overlayParams.overlayId = obj->overlayId;   //APP_DSS_OVERLAY_ID_2
  overlayParams.colorKeyEnable = 1;
  overlayParams.colorKeySel = APP_DCTRL_OVERLAY_TRANS_COLOR_SRC;
  overlayParams.transColorKeyMin = 0x0u;
  overlayParams.transColorKeyMax = 0x0u;
  overlayParams.backGroundColor = 0x0u;

	retVal+= appRemoteServiceRun(cpuId, APP_DCTRL_REMOTE_SERVICE_NAME, APP_DCTRL_CMD_SET_OVERLAY_PARAMS, &overlayParams, sizeof(overlayParams), 0U);
}

vision_apps/utils/dss/src/app_dctrl.c :
appDctrlControl()
{
	case APP_DCTRL_CMD_SET_OVERLAY_PARAMS:
    retVal = appDctrlSetOverlayParamsCmd(gAppDctrlHandle,
                      					(const app_dctrl_overlay_params_t*) params,
                                        size);
}

appDctrlSetOverlayParamsCmd()
{
	Dss_dctrlOverlayParamsInit(&drvOverlayParams);
  drvOverlayParams.overlayId = overlayParams->overlayId;
  drvOverlayParams.overlayCfg.colorKeyEnable = overlayParams->colorKeyEnable;
  drvOverlayParams.overlayCfg.colorKeySel = overlayParams->colorKeySel;
  drvOverlayParams.overlayCfg.transColorKeyMin = overlayParams->transColorKeyMin;
  drvOverlayParams.overlayCfg.transColorKeyMax = overlayParams->transColorKeyMax;
  drvOverlayParams.overlayCfg.backGroundColor = overlayParams->backGroundColor;
  retVal = Fvid2_control(handle, IOCTL_DSS_DCTRL_SET_OVERLAY_PARAMS, &drvOverlayParams, NULL);
}

app_dctrl.h :
Dss_dctrlOverlayParamsInit()
{
    if(NULL != overlayParams)
    {
        overlayParams->overlayId = CSL_DSS_OVERLAY_ID_1;
        overlayParams->colorbarEnable = TRUE;	//yaogang modify
        CSL_dssOverlayCfgInit(&(overlayParams->overlayCfg));
    }
}

vp2 connect to vout0 vision_apps/utils/dss/src/app_dss_defaults.c : 
appDssDefaultInit()
{
    else if(prm->display_type==APP_DSS_DEFAULT_DISPLAY_TYPE_DPI_HDMI)
    {
        appLogPrintf("DSS: Display type is HDMI !!!\n");
        obj->nodeOverlayId = APP_DCTRL_NODE_OVERLAY2;
        obj->nodeVpId      = APP_DCTRL_NODE_VP2;
        obj->nodeDpiId     = APP_DCTRL_NODE_DPI_DPI0;
        obj->overlayId     = APP_DSS_OVERLAY_ID_2;
        obj->vpId          = APP_DSS_VP_ID_2;
        //yaogang modify
        //obj->videoIfWidth  = APP_DCTRL_VIFW_24BIT;
        obj->videoIfWidth  = APP_DCTRL_VIFW_16BIT;
    }
    
    if(prm->enableM2m == TRUE)
    {
        appLogPrintf("DSS: M2M Path is enabled !!!\n");
        obj->m2m.enableM2m     = true;
        obj->m2m.nodeOverlayId = APP_DCTRL_NODE_OVERLAY4;
        obj->m2m.overlayId     = APP_DSS_OVERLAY_ID_4;
        obj->m2m.pipeId        = APP_DCTRL_NODE_VIDL2;
        obj->m2m.vpId          = APP_DSS_VP_ID_4;
        obj->m2m.nodeVpId      = APP_DCTRL_NODE_VP4;
    }
    ......
    appDctrlDefaultInit(obj);
}

appDctrlDefaultInit()
{
	pathInfo.edgeInfo[pathInfo.numEdges].startNode = APP_DCTRL_NODE_VID1;
  pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->nodeOverlayId;	//APP_DCTRL_NODE_OVERLAY2
  printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
    pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
  pathInfo.numEdges++;
  
  pathInfo.edgeInfo[pathInfo.numEdges].startNode = APP_DCTRL_NODE_VID2;
  pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->nodeOverlayId;
  printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
    pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
  pathInfo.numEdges++;
  
  pathInfo.edgeInfo[pathInfo.numEdges].startNode = APP_DCTRL_NODE_VIDL1;
  pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->nodeOverlayId;
  printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
    pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
  pathInfo.numEdges++;
  
  pathInfo.edgeInfo[pathInfo.numEdges].startNode = obj->nodeOverlayId;
  pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->nodeVpId;		//APP_DCTRL_NODE_VP2
  printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
    pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
  pathInfo.numEdges++;
  
  pathInfo.edgeInfo[pathInfo.numEdges].startNode = obj->nodeVpId;
  pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->nodeDpiId;	//APP_DCTRL_NODE_DPI_DPI0
  printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
    pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
  pathInfo.numEdges++;

  if (true == obj->m2m.enableM2m)
  {
      pathInfo.edgeInfo[pathInfo.numEdges].startNode = obj->m2m.pipeId;	//APP_DCTRL_NODE_VIDL2
      pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->m2m.nodeOverlayId;	//APP_DCTRL_NODE_OVERLAY4
      printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
      pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
      pathInfo.numEdges++;

      pathInfo.edgeInfo[pathInfo.numEdges].startNode = obj->m2m.nodeOverlayId;
      pathInfo.edgeInfo[pathInfo.numEdges].endNode   = obj->m2m.nodeVpId;		//APP_DCTRL_NODE_VP4
      printf("edge[%d]: %d --> %d\n", pathInfo.numEdges,
      pathInfo.edgeInfo[pathInfo.numEdges].startNode,	pathInfo.edgeInfo[pathInfo.numEdges].endNode);
      pathInfo.numEdges++;
  }
}

DSS0_OVR2 Registers reg_addr                 reg_val
0x4a90000                0x00000C00
0x4a90004                0x00000000
0x4a90008                0x00000000
0x4a9000c                0x00000000
0x4a90010                0x0F00F00F
0x4a90014                0x00000000
0x4a90018                0x00000000
0x4a9001c                0x00000000
0x4a90020                0x00000001
0x4a90024                0x00000005
0x4a90028                0x00000000
0x4a9002c                0x00000000
0x4a90030                0x00000003
0x4a90034                0x00000000
0x4a90038                0x00000000
0x4a9003c                0x00000000
0x4a90040                0x00000000
0x4a90044                0x00000000
0x4a90048                0x00000000

DSS0_VP2 Registers reg_addr                 reg_val
0x4aa0000                0x03200000
0x4aa0004                0x00000141
0x4aa0008                0x00810042
0x4aa000c                0x07DA0019
0x4aa0010                0x007007B6
0x4aa0014                0x00000000
0x4aa0018                0x00000000
0x4aa001c                0x00000000
0x4aa0020                0x00000000
0x4aa0024                0x00000000
0x4aa0028                0x00000000
0x4aa002c                0x00000000
0x4aa0030                0x00000000
0x4aa0034                0x00000000
0x4aa0038                0x00000000
0x4aa003c                0x00000000
0x4aa0040                0x00000000
0x4aa0044                0x00000433
0x4aa0048                0x00000000
0x4aa004c                0x00000000
0x4aa0050                0x0437077F
0x4aa0054                0x000000D1
0x4aa0058                0x02900402
0x4aa005c                0x07A20070
0x4aa0060                0x000007EE
0x4aa0064                0x00000000
0x4aa0068                0x00000000
0x4aa006c                0x40004000
0x4aa0070                0x00000000
0x4aa0074                0x00000000
0x4aa0078                0x00000000
0x4aa007c                0x00000000
0x4aa0080                0x00000000
0x4aa0084                0x00000000
0x4aa0088                0x00000000
0x4aa008c                0x00000000
0x4aa0090                0x00000000
0x4aa0094                0x00000000
0x4aa0098                0x00000000
0x4aa009c                0x00000000
0x4aa00a0                0x00000000
0x4aa00a4                0x00000000
0x4aa00a8                0x00000000
0x4aa00ac                0x00000000
0x4aa00b0                0x00000000
0x4aa00b4                0x00000000
0x4aa00b8                0x00000000
0x4aa00bc                0x00000000
0x4aa00c0                0x00000000
0x4aa00c4                0x00000000
0x4aa00c8                0x00000000
0x4aa00cc                0x00000000
0x4aa00d0                0x00000000
0x4aa00d4                0x00000000
0x4aa00d8                0x00000000
0x4aa00dc                0x00000000
0x4aa00e0                0x00000000
0x4aa00e4                0x00000000
0x4aa00e8                0x00000000
0x4aa00ec                0x00000000
0x4aa00f0                0x00000000
0x4aa00f4                0x00000000
0x4aa00f8                0x00000000
0x4aa00fc                0x00000000
0x4aa0100                0x00000000
0x4aa0104                0x00000000
0x4aa0108                0x00000000
0x4aa010c                0x00000000
0x4aa0110                0x00000000
0x4aa0114                0x00000000
0x4aa0118                0x00000000
0x4aa011c                0x00000000
0x4aa0120                0x00000000
0x4aa0124                0x00000000
0x4aa0128                0x00000000
0x4aa012c                0x00000000
0x4aa0130                0x00000000
0x4aa0134                0x00000000
0x4aa0138                0x00000000
0x4aa013c                0x00000000
0x4aa0140                0x00000000
0x4aa0144                0x00000000
0x4aa0148                0x00000000
0x4aa014c                0x00000000
0x4aa0150                0x00000000
0x4aa0154                0x00000000
0x4aa0158                0x00000000
0x4aa015c                0x00000000
0x4aa0160                0x00000000
0x4aa0164                0x00000000
0x4aa0168                0x00000000
0x4aa016c                0x00000000
0x4aa0170                0x00000000
0x4aa0174                0x00000000
0x4aa0178                0x00000000

Hi Brijesh, Is there any progress on this issue

Hi gang yao, There are couple of things in the register dump that i suspect. - I see you have enabled three inputs in the overlay manager registers, VID1, VID2 and VIDL1 and there is not color bar output enable in the overlay manager. Can you please disable these inputs and enable just color bar from overlay manager? - In DATALINES field of VP_CONTROL register, it is set to 0x1, which means 16bit output, can we please try changing it to 0x5, ie full 36 bit output from overlay manager? - In addition, horizontal blanking is set to 722 clock pulses. can you please review and see if it is ok? Typically for YUV422, it should be multiple of 4.. Can you please set it to multiple of 4 value? Regards, Brijesh