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    全志T113 接LVDS 屏幕

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      daMing123 LV 6 last edited by

      用了MQ-r的板子,接上LVDS屏幕
      把LCD的引脚引出来,淘宝买了一个40Pin排线,把2.54mm针的距离引出来
      557dce4b-cc1d-4993-9716-76aa2010f34c-image.png
      然后查看原理图,查看board.dts,查看引脚,接上
      由于LVDS屏幕需要一个正负电压,查看规格书,
      922be46d-5aab-4c6a-9060-48d2497ee786-image.png
      VGH 18V,VGL -10V,手头没有,于是淘宝找了一个LVDS电压转接板,把负电压,正电压,升压得到合适的电压,下面是升级板
      a846596c-fc20-40dd-9c82-7c10ee399a53-image.png
      接上屏幕,另外一边接转接板。修改dts文件如下
      &lcd0 {
      lcd_used = <1>;

      lcd_driver_name     = "default_lcd";
      lcd_if              = <3>;
      
      lcd_x               = <1024>;
      lcd_y               = <600>;
      lcd_width           = <150>;
      lcd_height          = <94>;
      lcd_dclk_freq       = <51>;
      
      lcd_pwm_used        = <0>;
      
      lcd_hbp             = <80>;
      lcd_ht              = <1344>;
      lcd_hspw            = <20>;
      lcd_vbp             = <10>;
      lcd_vt              = <635>;
      lcd_vspw            = <10>;
      
      lcd_lvds_if         = <0>;
      lcd_lvds_colordepth = <1>;
      lcd_lvds_mode       = <1>;
      
      lcd_frm             = <1>;
      lcd_hv_clk_phase    = <0>;
      lcd_hv_sync_polarity= <0>;
      lcd_gamma_en        = <0>;
      lcd_bright_curve_en = <0>;
      lcd_cmap_en         = <0>;
      
      pinctrl-0 = <&lvds0_pins_a>;
      pinctrl-1 = <&lvds0_pins_b>;
      

      };
      最后上电,成功点亮
      e1f09b5a-84cc-4c7a-b4b4-f75da446cefd-image.png
      完成,走了很多弯路,因为对LVDS不了解,淘宝买东西耽搁几天时间。大家可以对照着来,如果用到LVDS的话。

      J 1 Reply Last reply Reply Quote Share 1
      • J
        Justyu666 LV 5 @daMing123 last edited by

        @daming123 在 全志T113 接LVDS 屏幕 中说:

        用了MQ-r的板子,接上LVDS屏幕
        把LCD的引脚引出来,淘宝买了一个40Pin排线,把2.54mm针的距离引出来
        557dce4b-cc1d-4993-9716-76aa2010f34c-image.png
        然后查看原理图,查看board.dts,查看引脚,接上
        由于LVDS屏幕需要一个正负电压,查看规格书,
        922be46d-5aab-4c6a-9060-48d2497ee786-image.png
        VGH 18V,VGL -10V,手头没有,于是淘宝找了一个LVDS电压转接板,把负电压,正电压,升压得到合适的电压,下面是升级板
        a846596c-fc20-40dd-9c82-7c10ee399a53-image.png
        接上屏幕,另外一边接转接板。修改dts文件如下
        &lcd0 {
        lcd_used = <1>;

        lcd_driver_name = "default_lcd";
        lcd_if = <3>;

        lcd_x = <1024>;
        lcd_y = <600>;
        lcd_width = <150>;
        lcd_height = <94>;
        lcd_dclk_freq = <51>;

        lcd_pwm_used = <0>;

        lcd_hbp = <80>;
        lcd_ht = <1344>;
        lcd_hspw = <20>;
        lcd_vbp = <10>;
        lcd_vt = <635>;
        lcd_vspw = <10>;

        lcd_lvds_if = <0>;
        lcd_lvds_colordepth = <1>;
        lcd_lvds_mode = <1>;

        lcd_frm = <1>;
        lcd_hv_clk_phase = <0>;
        lcd_hv_sync_polarity= <0>;
        lcd_gamma_en = <0>;
        lcd_bright_curve_en = <0>;
        lcd_cmap_en = <0>;

        pinctrl-0 = <&lvds0_pins_a>;
        pinctrl-1 = <&lvds0_pins_b>;
        };
        最后上电,成功点亮
        e1f09b5a-84cc-4c7a-b4b4-f75da446cefd-image.png
        完成,走了很多弯路,因为对LVDS不了解,淘宝买东西耽搁几天时间。大家可以对照着来,如果用到LVDS的话。

        亲,有 LVDS 适配步骤没?

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