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标题:
RK3288调试SHARP 15寸屏问题
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作者:
bouncingnote
时间:
2015-9-16 12:40
标题:
RK3288调试SHARP 15寸屏问题
目前在RK3288板上调试SHARP 型号为lq150x1lg91 lvds屏,参照其规格书信息目前配置dtsi如下,现屏已能点亮能输出画面,但是画面上下两边会出现左右抖动图像扭曲变形,若这时RK3288板接上HDMI输出后屏的图像就恢复正常显示,盼大侠们指点迷津,谢谢!
屏规格书:
http://media.digikey.com/pdf/Dat ... DFs/LQ150X1LG91.pdf
目前dtsi文件的配置如下:
/ {
disp_timings: display-timings {
native-mode = <&timing0>;
timing0: timing0 {
screen-type = <SCREEN_LVDS>;
lvds-format = <LVDS_8BIT_1>;
out-face = <OUT_D888_P666>;
clock-frequency = <65000000>;
hactive = <1024>;
vactive = <768>;
hback-porch = <0>;
hfront-porch = <320>;
vback-porch = <38>;
vfront-porch = <0>;
hsync-len = <20>;
vsync-len = <16>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
swap-rb = <0>;
swap-rg = <0>;
swap-gb = <0>;
};
};
};
截图为规格书中的信号时序
file:///D:/Tencent/userdata/179826561/FileRecv/MobileFile/Image/OOQBN_F9HZ%25MB7YLV492)0J.png
作者:
bouncingnote
时间:
2015-9-16 12:42
截图为规格书中的信号时序
OOQBN_F9HZ%MB7YLV492)0J.png
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2015-9-16 12:41 上传
作者:
carlinluo
时间:
2015-9-16 13:36
hback-porch = <50>;
hfront-porch = <50>;
vback-porch = <19>;
vfront-porch = <19>;
hsync-len = <20>;
vsync-len = <10>;
试试
作者:
bouncingnote
时间:
2015-9-16 13:54
谢谢carlinluo,更改上面设置后已正常,另请问下上述参数是如何算出的?
作者:
carlinluo
时间:
2015-9-16 14:01
1344-1024=hback-porch +hfront-porch + hsync-len
806-768=vback-porch +vfront-porch + vsync-len
上面公式相等就可以了,其实我也是瞎猜的
作者:
bouncingnote
时间:
2015-9-16 14:11
佩服+感谢! :)
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