全志在线开发者论坛

daMing123

@jasonzhang 好的，谢谢，可以了

daMing123

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

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，

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

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

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。

daMing123

请教一下各位大神，全志的T113，编译自已写的驱动模块时候，makefile ，应该如何写，有没有例子？
我写了，老是提示有问题
问题如下：

lin@ubuntu:~/mydata2/T113_Tina5.0/usrdriver/focaltech_touch$ make
make ARCH=arm  -I/home/lin/mydata2/T113_Tina5.0/T113-Tina5.0-V1.2/out/t113/kernel/build/    CROSS_COMPILE=/home/lin/mydata2/T113_Tina5.0/T113-Tina5.0-V1.2/out/toolchain/gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabi/bin/arm-linux-gnueabi- -C /home/lin/mydata2/T113_Tina5.0/T113-Tina5.0-V1.2/kernel/linux-5.4/ M=/home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch modules
make[1]: 进入目录“/home/lin/mydata2/T113_Tina5.0/T113-Tina5.0-V1.2/kernel/linux-5.4”
awk: 致命错误： 无法以读模式打开文件“include/generated/asm-offsets.h”(没有那个文件或目录)
awk: 致命错误： 无法以读模式打开文件“include/generated/asm-offsets.h”(没有那个文件或目录)
  CC [M]  /home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch/focaltech_core.o
cc1: error: cannot load plugin ./scripts/gcc-plugins/arm_ssp_per_task_plugin.so
./scripts/gcc-plugins/arm_ssp_per_task_plugin.so: cannot open shared object file: No such file or directory
scripts/Makefile.build:286: recipe for target '/home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch/focaltech_core.o' failed
make[2]: *** [/home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch/focaltech_core.o] Error 1
Makefile:1810: recipe for target '/home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch' failed
make[1]: *** [/home/lin/mydata2/T113_Tina5.0/usrdriver/focaltech_touch] Error 2
make[1]: 离开目录“/home/lin/mydata2/T113_Tina5.0/T113-Tina5.0-V1.2/kernel/linux-5.4”
Makefile:36: recipe for target 'kernel_modules' failed
make: *** [kernel_modules] Error 2

makefile 如下：

TINA_SDK_ROOT = /home/lin/mydata2/T113_Tina5.0/T113-Tina5.0


KERNELDIR := $(TINA_SDK_ROOT)/kernel/linux-5.4/

CURRENT_PATH := $(shell pwd)
STAGING_DIR := $(TINA_SDK_ROOT)/out/t113/100ask_nand/openwrt/staging_dir/target

obj-m := ft5446.o
ft5446-objs += focaltech_core.o focaltech_ex_fun.o  focaltech_ex_mode.o
ft5446-objs += focaltech_gesture.o focaltech_esdcheck.o  focaltech_i2c.o focaltech_point_report_check.o  

ARCH            := arm
CROSS_COMPILE   := $(TINA_SDK_ROOT)/out/toolchain/gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabi/bin/arm-linux-gnueabi-
#CROSS_COMPILE = ${TINA_SDK_ROOT}/prebuilt/rootfsbuilt/arm/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf/bin/arm-none-linux-gnueabihf-

CFLAGS  += -I$(TINA_SDK_ROOT)/out/t113/kernel/build/

build: kernel_modules

kernel_modules:
	$(MAKE) ARCH=$(ARCH)  $(CFLAGS)  $(LCOMPILELIBAll)  CROSS_COMPILE=$(CROSS_COMPILE) -C $(KERNELDIR) M=$(CURRENT_PATH) modules
clean:
	$(MAKE) -C $(KERNELDIR) M=$(CURRENT_PATH) clean

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