am335x显示有误

ZB_LAJI

Intellectual 980 points

你好，在自己的自制板中，u-boot及linux选用ti-sdk的最新版本，使用SD卡启动，显示屏有显示图A界面，但是当我选择命令cat logo-7.bmp > /dev/fb0，

logo-7.bmp 应该为下图的样子：

但在实际中屏幕显示如下图

请问这个是属于设备树中的屏幕参数错误吗？能否判断出大概是哪些参数有误。

4 年多前

0 Nancy Wang 4 年多前

TI__Guru** 110395 points

建议将相关的配置也贴出来一下。

0 ZB_LAJI 4 年多前回复 Nancy Wang

Intellectual 980 points

panel {

compatible = "ti,tilcdc,panel";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&lcd_pins_default>;
pinctrl-1 = <&lcd_pins_sleep>;
status = "okay";
panel-info {
ac-bias = <255>;
ac-bias-intrpt = <0>;
dma-burst-sz = <16>;
bpp = <32>;
fdd = <0x80>;
sync-edge = <0>;
sync-ctrl = <1>;
raster-order = <0>;
fifo-th = <0>;
};
display-timings {
800x480 {
hactive = <800>;
vactive = <480>;
hback-porch = <88>;
hfront-porch = <40>;
hsync-len = <128>;
vback-porch = <32>;
vfront-porch = <11>;
vsync-len = <2>;
clock-frequency = <33200000>;
hsync-active = <0>;
vsync-active = <0>;
};
};