设置LCD控制器,pixclock如何计算

设置LCD控制器

static struct fb_videomode at91_tft_vga_modes[]={

{

    .name = “TX09D50VM1CCA @ 60”

    .refresh = 60,

    .xres = 640,    .yres = 480,

    .pixclock = KHZ2PICOS(25000),

   

    .left_margin = 30,    .right_margin = 16,

    .upper_margin = 36, .lower_margin = 10,

    .hsync_len = 96,     .vsync_len = 2,

  

    其它的不改

}

}

其中 .pixclock = KHZ2PICOS((640+30+16+96)*(480+36+10+2)*60/1000),