关于linux下pixclock、left_margin、right_margin、hsync_len等的计算

原文：http://www.tuicool.com/articles/NzQVR3



xres <===========> TEP

yres <===========> Tvd

left_margin <===========> Thf

right_margin <===========> Thb

hsync_len <===========> THS

upper_margin <===========> Tvf

lower_margin <===========> Tvb

vsync_len <===========> Tvs

Pixelclock:

xfree: in MHz

fb: in picoseconds (ps)

pixclock = 1000000 / DCF



上面示例LCD对应的fb参数如下：

.pixclock = 1000000/64=15625,

.xres = 768,

.yres = 1024,

.left_margin =0,

.right_margin = 180,

.hsync_len =THS= TH-THD-THB=948-768-180=0 ,

.upper_margin = 0,

.lower_margin = TVB=116,

.vsync_len = TVS=TV-TVD-TVB=1140-1024-116=0,