关于linux下pixclock、left_margin、right_margin、hsync_len等的计算
原文:http://www.tuicool.com/articles/NzQVR3
·
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,
更多推荐
已为社区贡献3条内容
所有评论(0)