14.6寸屏不显示
我在驱动另一款屏幕14.6，按照屏参，进行了配置，但什么也不显示，我把我配置的设备树，屏幕说明书，以及如何接线我提供出来。屏参：
Diagonal Size 14.6 inch
Resolution 1920(RGB) x 1080
Active Area(mm) 323.136x181.764
Parameter Symbol Min Typ. Max Unit
DCLK frequency FDCLK 66.05 68.18 70.18 MHz
Horizontal valid data thd 960 DCLK
Hsync pulse Width thpw - 20 - DCLK
Hsync back porch thbp - 20 - DCLK
Hsync front porch thfp - 20 - DCLK
1 horizontal line th - 1020 - H
Vertical valid data tvd 1080 H
Vsync pulse width tvpw - 2 - H
Vsync back porch tvbp - 8 - H
Vsync front porch tvfp - 24 - H
1 vertical field tv - 1114 - H
Frame rate FR - 60 - HZ
我配置的设备树:OKT507-C-Common.dtsi
lcd0: lcd0@01c0c000 {
lcd_used = <1>;
lcd_driver_name = "forlinx_gt911";
lcd_backlight = <250>;// 根据屏幕资料调整
lcd_if = <3>;
lcd_x = <1920>;
lcd_y = <1080>;
lcd_width = <323>;// 调整为屏幕的实际宽度 14inch
lcd_height = <181>; // 调整为屏幕的实际高度 14inch
lcd_dclk_freq = <68>; // 根据屏幕资料的中值调整14inch
lcd_pwm_used = <0>;
lcd_pwm_ch = <0>;
lcd_pwm_freq = <50000>;
lcd_pwm_pol = <1>;
lcd_pwm_max_limit = <255>;
/* hsync back porch(pixel) + hsync plus width(pixel)*/
/*
14inch
Hsync pulse Width thpw - 20 - DCLK
Hsync back porch thbp - 20 - DCLK
20+20 = 40
*/
lcd_hbp = <40>;
/* HBP + HFP + HSPW + Horizontal Resolution */
/* HBP + HFP + HSPW + Horizontal Resolution
40+ 20+20 + 1920 = 2000
*/
lcd_ht = <2000>;//14inch
/* Horizontal Sync Pluse Width */
lcd_hspw = <20>; //14inch
/* vsync back porch(line) + vysnc plus width(line) */
/*
Vsync pulse width tvpw - 2 - H
Vsync back porch tvbp- 8 - H
2 + 8 =10
*/
lcd_vbp = <10>; //14inch
/* VBP + VFP + VSPW + Vertical Resolution */
/*
VBP + VFP + VSPW + Vertical Resolution
10+24 +2 + 1080= 1116
*/
lcd_vt = <1116>; //14inch
/* Vertical Sync Pluse Width*/
lcd_vspw = <2>; //14inch
lcd_lvds_if = <1>;
lcd_lvds_colordepth = <0>;
lcd_lvds_mode = <0>;
lcd_frm = <0>;
lcd_hv_clk_phase = <0>;
lcd_hv_sync_polarity= <0>;
lcd_gamma_en = <0>;
lcd_bright_curve_en = <0>;
lcd_cmap_en = <0>;
lcd_fsync_en = <0>;
lcd_fsync_act_time= <1000>;
lcd_fsync_dis_time= <1000>;
lcd_fsync_pol = <0>;
deu_mode = <0>;
lcdgamma4iep = <22>;
smart_color = <90>;
lcd_pin_power = "bldo1";
lcd_power = "dc1sw";
lcd_bl_en = <&pio PE 22 1 0 3 1>;
pinctrl-0 = <&lvds2link_pins_a>;
pinctrl-1 = <&lvds2link_pins_b>;
}; 背光灯正常点亮 我任职的公司在用飞凌T507在做产品样机，我一共遇到两个问题，随时等回复 您这个屏幕是什么类型的？mipi，还是lcd、lvds，电容还是电阻呢？ shuishui 发表于 2023-9-26 08:48
您这个屏幕是什么类型的？mipi，还是lcd、lvds，电容还是电阻呢？
这是我的QQ号：86742187，我可以把21寸与14寸屏幕说明书说明给你。
电容屏幕，lvds
是这具体参数
1. Features
This is a 14.6inch LTPS-TFT-LCD (Low Temperature Poly-silicon Liquid Crystal Display) module with
normal-black technology. It is composed of a TFT-LCD panel, LCD Driver IC with T-con integrated and a PCB
unit. This product is designed for automotive and other high reliability electronic products and complies with
RoHS Directive.
2. General Specification
Feature Specification Remark
Diagonal Size 14.6 inch
Resolution 1920(RGB) x 1080
Active Area(mm) 323.136x181.764
Pixel Pitch (mm) 0.1683x0.1683
Pixel Configuration R.G.B. Vertical Stripe
Technology Type LTPS incell
Display Mode Normally Black
Landscape or Portrait Landscape
Su**ce Treatment (Top Polarizer) HC
Inte**ce 2Port LVDS
Color Depth 16.7M
Dimension (H x V x D) (mm) 327.736(H) x 191.224(V) x 1.23(D) Note1
Weight (g) TBD Note2 不好意思，我们这边不能通过私人方式加您，您可以联系我们公司和您对接的销售和他沟通一下，您还可以拨打我们的技术支持电话，以及您可以把您的问题发送至我们的邮箱，您可以在邮件中加入您的相关资料。 shuishui 发表于 2023-9-26 10:51
不好意思，我们这边不能通过私人方式加您，您可以联系我们公司和您对接的销售和他沟通一下，您还可以拨打我 ...
好，keep touch 双通道LVDS的DCLK是不是得双倍？ 可以看下您接线吗？还有屏幕手册，方便的话，可以放到我们邮箱。
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