如题，这玩意儿很多人都lu过成功了。
老规矩上过程:
1、clone
https://github.com/lvgl/lv_port_linux_frame_buffer.git
2、改Makefile
#CC ?= gcc
CC := arm-linux-gnueabihf-gcc
3、make
4、加触摸
荔枝派zero 已经有电阻屏了，直接用 evdev，校准也搞一下，diff一波：
diff --git a/lv_drv_conf.h b/lv_drv_conf.h
index 975c7b4..3623d2d 100644
--- a/lv_drv_conf.h
+++ b/lv_drv_conf.h
@@ -314,18 +314,18 @@
#endif
/*-------------------------------------------------
* Mouse or touchpad as evdev interface (for Linux based systems)
*------------------------------------------------*/
#ifndef USE_EVDEV
-# define USE_EVDEV 0
+# define USE_EVDEV 1
#endif
#if USE_EVDEV
-# define EVDEV_NAME "/dev/input/event0" /*You can use the "evtest" Linux tool to get the list of devices and test them*/
+# define EVDEV_NAME "/dev/input/event1" /*You can use the "evtest" Linux tool to get the list of devices and test them*/
# define EVDEV_SWAP_AXES 0 /*Swap the x and y axes of the touchscreen*/
# define EVDEV_SCALE 0 /* Scale input, e.g. if touchscreen resolution does not match display resolution */
@@ -334,11 +334,11 @@
# define EVDEV_SCALE_VER_RES (4096) /* Vertical resolution of touchscreen */
# endif /*EVDEV_SCALE*/
-# define EVDEV_CALIBRATE 0 /*Scale and offset the touchscreen coordinates by using maximum and minimum values for each axis*/
+# define EVDEV_CALIBRATE 1 /*Scale and offset the touchscreen coordinates by using maximum and minimum values for each axis*/
# if EVDEV_CALIBRATE
-# define EVDEV_HOR_MIN 3800 /*If EVDEV_XXX_MIN > EVDEV_XXX_MAX the XXX axis is automatically inverted*/
-# define EVDEV_HOR_MAX 200
-# define EVDEV_VER_MIN 200
+# define EVDEV_HOR_MIN 200 /*If EVDEV_XXX_MIN > EVDEV_XXX_MAX the XXX axis is automatically inverted*/
+# define EVDEV_HOR_MAX 3800
+# define EVDEV_VER_MIN 400
# define EVDEV_VER_MAX 3800
# endif /*EVDEV_SCALE*/
#endif /*USE_EVDEV*/别忘了初始化加入触摸设备注册一下回调函数：
diff --git a/main.c b/main.c
index d286cc7..317a604 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,8 @@
#include "lvgl/lvgl.h"
#include "lv_drivers/display/fbdev.h"
#include "lv_examples/lv_examples.h"
+#include "lv_drivers/indev/evdev.h"
+#include "lvgl/src/lv_hal/lv_hal_indev.h"
#include <unistd.h>
#include <pthread.h>
#include <time.h>
@@ -30,6 +32,14 @@ int main(void)
disp_drv.flush_cb = fbdev_flush;
lv_disp_drv_register(&disp_drv);
+
+ lv_indev_drv_t indev_drv;
+ lv_indev_drv_init(&indev_drv); /*Basic initialization*/
+ evdev_init();
+ indev_drv.type = LV_INDEV_TYPE_POINTER; /*See below.*/
+ indev_drv.read_cb = evdev_read; /*See below.*/
+ lv_indev_drv_register(&indev_drv); /*Register the driver in LittlevGL*/
+
/*Create a Demo*/
lv_demo_widgets();再编译一下。
起飞！
加图片我还不是很熟悉，lvgl7.0 懂的都懂。
离线