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imx6DL How to make the input std PAL signal full screen display by  a/d  tp2825

Question asked by liang feng on Feb 23, 2017
Latest reply on Dec 15, 2017 by xiaojun ye

I want to full screen display now,But unsuccessfulHow to set up software?

 

my software settings are as follows

   p->if_type = V4L2_IF_TYPE_BT656; /* This is the only possibility. */
    p->u.bt656.mode = V4L2_IF_TYPE_BT656_MODE_NOBT_8BIT;
    p->u.bt656.nobt_hs_inv = 0;  
    p->u.bt656.bt_sync_correct = 1;     //use gated mode

    p->u.bt656.clock_curr = 37000000;

As the pixel after conversion through tp2825 is  960*624,The input of tp2825 A/D is STD CVBS PAL。

Use  param below:

Parameters are modified below,The image is displayed as follows:

   {            /*! (B, G, H, I, N) PAL */
     .v4l2_id = V4L2_STD_PAL,
     .name = "PAL",
     .raw_width = 960,    
     .raw_height = 624,  
     .active_width = 960, 
     .active_height = 312,
     .active_top = 0,
     .active_left = 0,
     },

 

   

 

Parameters are modified below,The image is displayed as follows:

{            /*! (B, G, H, I, N) PAL */
     .v4l2_id = V4L2_STD_PAL,
     .name = "PAL",
     .raw_width = 960,    
     .raw_height = 624,  
     .active_width = 960,
     .active_height = 624-16
     .active_top = 0,
     .active_left = 0,
     },

 

 

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