Comments (16)
Neothai
commented on July 2, 2024
1
I updated
lvgllibrary and still get this error:Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled" LVGL_Arduino-3.5CTP-gt911:5:10: fatal error: demos/lv_demos.h: No such file or directory #include <demos/lv_demos.h> ^~~~~~~~~~~~~~~~~~ compilation terminated. exit status 1 demos/lv_demos.h: No such file or directory This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
Have you set #define LV_USE_DEMO_WIDGETS in lv_conf.h to 1?
// Your code
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 6 );
/*初始化显示*/
static lv_disp_drv_t disp_drv;
lv_disp_drv_init( &disp_drv );
/*将以下行更改为显示分辨率*/
disp_drv.hor_res = screenWidth;
disp_drv.ver_res = screenHeight;
disp_drv.flush_cb = my_disp_flush;
disp_drv.draw_buf = &draw_buf;
lv_disp_drv_register( &disp_drv );
/*初始化（虚拟）输入设备驱动程序*/
static lv_indev_drv_t indev_drv;
lv_indev_drv_init( &indev_drv );
indev_drv.type = LV_INDEV_TYPE_POINTER;
indev_drv.read_cb = my_touchpad_read;
lv_indev_drv_register( &indev_drv );I think the style of your code in this section is probably that of LVGL version 8..
LVGL version 9 The code will look something like this.
/*LVGL draw into this buffer, 1/10 screen size usually works well. The size is in bytes*/
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
uint32_t draw_buf[DRAW_BUF_SIZE / 4];
/* LVGL calls it when a rendered image needs to copied to the display*/
void my_disp_flush( lv_display_t *disp, const lv_area_t *area, uint8_t * px_map){
/*For example ("my_..." functions needs to be implemented by you)
uint32_t w = lv_area_get_width(area);
uint32_t h = lv_area_get_height(area);
my_set_window(area->x1, area->y1, w, h);
my_draw_bitmaps(px_map, w * h);
*/
lv_disp_flush_ready(disp); /*Call it to tell LVGL you are ready*/
}
/*Read the touchpad*/
void my_touchpad_read( lv_indev_t * indev, lv_indev_data_t * data ){
/*For example ("my_..." functions needs to be implemented by you)
int32_t x, y;
bool touched = my_get_touch( &x, &y );
if(!touched) {
data->state = LV_INDEV_STATE_RELEASED;
} else {
data->state = LV_INDEV_STATE_PRESSED;
data->point.x = x;
data->point.y = y;
}
*/
}
void lvSystemSetup(){
lv_init();
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
lv_display_set_flush_cb(disp, my_disp_flush);
lv_display_set_buffers(disp, draw_buf, NULL, sizeof(draw_buf), LV_DISPLAY_RENDER_MODE_PARTIAL);
/*Initialize the input device driver*/
lv_indev_t * indev = lv_indev_create();
lv_indev_set_type(indev, LV_INDEV_TYPE_POINTER); /*Touchpad should have POINTER type*/
lv_indev_set_read_cb(indev, my_touchpad_read);
}I think this link might be useful. https://docs.lvgl.io/master/integration/framework/arduino.html
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Neothai
commented on July 2, 2024
1
I did that I got this error:
Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled" E:\Programs_Files\Arduino\libraries\lvgl\src\demos\widgets\assets\img_clothes.c:6:10: fatal error: lvgl/lvgl.h: No such file or directory #include "lvgl/lvgl.h" ^~~~~~~~~~~~~ compilation terminated. exit status 1 Error compiling for board ESP32 Dev Module. This report would have more information with "Show verbose output during compilation" option enabled in File -> Preferences.
In your ..\lvgl\src\demos\widgets\assets\img_clothes.c file
try changing #include "lvgl/lvgl.h" to #include "../../../lvgl.h" and try compiling again.
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Neothai
commented on July 2, 2024
1
Try compiling this again. LVGL_Arduino-3.5CTP-gt911_2.zip
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Neothai
commented on July 2, 2024
1
And add this:
typedef struct { void * buf1; void * buf2; uint32_t size; // Size of each buffer in bytes } lv_disp_draw_buf_t;At
E:\Programs_Files\Arduino\libraries\lvgl\src\display\lv_display.h
Why do you want to add this?
You want to customize the display buffer, e.g. Buffer size Number of buffers? If so, you can adjust it here.
#define DRAW_BUF_SIZE (screenWidth * screenHeight / 10 * (LV_COLOR_DEPTH / 8))
uint8_t draw_buf[DRAW_BUF_SIZE / 4];
/*If you need to use 2 display buffer, uncomment this line*/
//uint8_t draw_buf2[DRAW_BUF_SIZE / 4];
//=====================================================================//
// in lvSystemSetup()
/*If you need to use 2 display buffer, uncomment this line*/
//lv_display_set_buffers(disp, draw_buf, draw_buf2, sizeof(DRAW_BUF_SIZE), LV_DISPLAY_RENDER_MODE_PARTIAL);And this is the latest file I updated. Try compiling it. LVGL_Arduino-3.5CTP-gt911_3.zip
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hape65
commented on July 2, 2024
you have to copy the demos and the examples folder from ..llibraries/vgl/demos to ..libraries/lvgl/src/demos same for examples
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eagl1
commented on July 2, 2024
I did that:
And get this error:
Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled"
E:\Programs_Files\Arduino\libraries\lvgl-master\src\demos\widgets\assets\img_clothes.c:6:10: fatal error: lvgl/lvgl.h: No such file or directory
#include "lvgl/lvgl.h"
^~~~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board ESP32 Dev Module.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
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eagl1
commented on July 2, 2024
I just want to include this file as a start:
E:\Programs_Files\Arduino\libraries\lvgl\src\indev\lv_indev.h
In the arduino code I did this:
#include "lvgl/src/indev/lv_indev.h" but it didn't work. What to do ?
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eagl1
commented on July 2, 2024
Where lv_indev_drv_t is declared ? I want to run a simple sketch.
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eagl1
commented on July 2, 2024
Have you set
#define LV_USE_DEMO_WIDGETSinlv_conf.hto 1?
Yes. But when I use the old lvgl that came with the display folder from the seller, I don't get any error. I've tried to troubleshoot the source of the error when using the new lvgl library but it will be a difficult one to solve in a short time since I don't have a general understanding of how the library folder works.
I think this link might be useful. https://docs.lvgl.io/master/integration/framework/arduino.html
I did that I got this error:
Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled"
E:\Programs_Files\Arduino\libraries\lvgl\src\demos\widgets\assets\img_clothes.c:6:10: fatal error: lvgl/lvgl.h: No such file or directory
#include "lvgl/lvgl.h"
^~~~~~~~~~~~~
compilation terminated.
exit status 1
Error compiling for board ESP32 Dev Module.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
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eagl1
commented on July 2, 2024
I did and got this list of errors:
Arduino: 1.8.19 (Windows 10), Board: "ESP32 Dev Module, Disabled, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled"
LVGL_Arduino-3.5CTP-gt911_2:652:21: error: variable or field 'my_disp_flush' declared void
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~~~~~~~
LVGL_Arduino-3.5CTP-gt911_2:652:21: error: 'lv_disp_drv_t' was not declared in this scope
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:21: note: suggested alternative: 'lv_fs_drv_t'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~~~~~~~
lv_fs_drv_t
LVGL_Arduino-3.5CTP-gt911_2:652:36: error: 'disp' was not declared in this scope
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:36: note: suggested alternative: 'dup'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~
dup
LVGL_Arduino-3.5CTP-gt911_2:652:42: error: expected primary-expression before 'const'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~
LVGL_Arduino-3.5CTP-gt911_2:652:76: error: expected primary-expression before '*' token
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^
LVGL_Arduino-3.5CTP-gt911_2:652:77: error: 'color_p' was not declared in this scope
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:77: note: suggested alternative: 'lv_color_t'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~
lv_color_t
LVGL_Arduino-3.5CTP-gt911_2:490:24: error: 'TFT_HOR_RES' was not declared in this scope
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:24: note: in definition of macro 'DRAW_BUF_SIZE'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:24: note: suggested alternative: 'LV_HOR_RES'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:24: note: in definition of macro 'DRAW_BUF_SIZE'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
LVGL_Arduino-3.5CTP-gt911_2:490:38: error: 'TFT_VER_RES' was not declared in this scope
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:38: note: in definition of macro 'DRAW_BUF_SIZE'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:38: note: suggested alternative: 'LV_VER_RES'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:490:38: note: in definition of macro 'DRAW_BUF_SIZE'
#define DRAW_BUF_SIZE (TFT_HOR_RES * TFT_VER_RES / 10 * (LV_COLOR_DEPTH / 8))
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino: In function 'void lvSystemSetup()':
LVGL_Arduino-3.5CTP-gt911_2:526:5: error: 'disp' was not declared in this scope
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:526:5: note: suggested alternative: 'dup'
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~
dup
LVGL_Arduino-3.5CTP-gt911_2:526:30: error: 'TFT_HOR_RES' was not declared in this scope
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:526:30: note: suggested alternative: 'LV_HOR_RES'
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~~~~~~~~
LV_HOR_RES
LVGL_Arduino-3.5CTP-gt911_2:526:43: error: 'TFT_VER_RES' was not declared in this scope
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:526:43: note: suggested alternative: 'LV_VER_RES'
disp = lv_display_create(TFT_HOR_RES, TFT_VER_RES);
^~~~~~~~~~~
LV_VER_RES
LVGL_Arduino-3.5CTP-gt911_2:528:34: error: 'draw_buf' was not declared in this scope
lv_display_set_buffers(disp, draw_buf, NULL, sizeof(draw_buf), LV_DISPLAY_RENDER_MODE_PARTIAL);
^~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:528:34: note: suggested alternative: 'lv_draw_buf_t'
lv_display_set_buffers(disp, draw_buf, NULL, sizeof(draw_buf), LV_DISPLAY_RENDER_MODE_PARTIAL);
^~~~~~~~
lv_draw_buf_t
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino: At global scope:
LVGL_Arduino-3.5CTP-gt911_2:541:8: error: 'lv_disp_draw_buf_t' does not name a type; did you mean 'lv_draw_buf_t'?
static lv_disp_draw_buf_t draw_buf;
^~~~~~~~~~~~~~~~~~
lv_draw_buf_t
LVGL_Arduino-3.5CTP-gt911_2:652:21: error: variable or field 'my_disp_flush' declared void
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~~~~~~~
LVGL_Arduino-3.5CTP-gt911_2:652:21: error: 'lv_disp_drv_t' was not declared in this scope
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:21: note: suggested alternative: 'lv_fs_drv_t'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~~~~~~~
lv_fs_drv_t
LVGL_Arduino-3.5CTP-gt911_2:652:36: error: 'disp' was not declared in this scope
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:36: note: suggested alternative: 'dup'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~
dup
LVGL_Arduino-3.5CTP-gt911_2:652:42: error: expected primary-expression before 'const'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~
LVGL_Arduino-3.5CTP-gt911_2:652:76: error: expected primary-expression before '*' token
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^
LVGL_Arduino-3.5CTP-gt911_2:652:77: error: 'color_p' was not declared in this scope
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:652:77: note: suggested alternative: 'lv_color_t'
void my_disp_flush( lv_disp_drv_t *disp, const lv_area_t *area, lv_color_t *color_p )
^~~~~~~
lv_color_t
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino: In function 'void setup()':
LVGL_Arduino-3.5CTP-gt911_2:816:31: error: 'draw_buf' was not declared in this scope
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 6 );
^~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:816:31: note: suggested alternative: 'lv_draw_buf_t'
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 6 );
^~~~~~~~
lv_draw_buf_t
LVGL_Arduino-3.5CTP-gt911_2:816:7: error: 'lv_disp_draw_buf_init' was not declared in this scope
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 6 );
^~~~~~~~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:816:7: note: suggested alternative: 'lv_draw_buf_init'
lv_disp_draw_buf_init( &draw_buf, buf, NULL, screenWidth * screenHeight / 6 );
^~~~~~~~~~~~~~~~~~~~~
lv_draw_buf_init
LVGL_Arduino-3.5CTP-gt911_2:819:14: error: 'lv_disp_drv_t' does not name a type; did you mean 'lv_fs_drv_t'?
static lv_disp_drv_t disp_drv;
^~~~~~~~~~~~~
lv_fs_drv_t
LVGL_Arduino-3.5CTP-gt911_2:820:26: error: 'disp_drv' was not declared in this scope
lv_disp_drv_init( &disp_drv );
^~~~~~~~
LVGL_Arduino-3.5CTP-gt911_2:820:7: error: 'lv_disp_drv_init' was not declared in this scope
lv_disp_drv_init( &disp_drv );
^~~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:820:7: note: suggested alternative: 'lv_fs_drv_init'
lv_disp_drv_init( &disp_drv );
^~~~~~~~~~~~~~~~
lv_fs_drv_init
LVGL_Arduino-3.5CTP-gt911_2:826:7: error: 'lv_disp_drv_register' was not declared in this scope
lv_disp_drv_register( &disp_drv );
^~~~~~~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:826:7: note: suggested alternative: 'lv_fs_drv_register'
lv_disp_drv_register( &disp_drv );
^~~~~~~~~~~~~~~~~~~~
lv_fs_drv_register
LVGL_Arduino-3.5CTP-gt911_2:829:14: error: 'lv_indev_drv_t' does not name a type; did you mean 'lv_indev_data_t'?
static lv_indev_drv_t indev_drv;
^~~~~~~~~~~~~~
lv_indev_data_t
LVGL_Arduino-3.5CTP-gt911_2:830:27: error: 'indev_drv' was not declared in this scope
lv_indev_drv_init( &indev_drv );
^~~~~~~~~
LVGL_Arduino-3.5CTP-gt911_2:830:7: error: 'lv_indev_drv_init' was not declared in this scope
lv_indev_drv_init( &indev_drv );
^~~~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:830:7: note: suggested alternative: 'lv_fs_drv_init'
lv_indev_drv_init( &indev_drv );
^~~~~~~~~~~~~~~~~
lv_fs_drv_init
LVGL_Arduino-3.5CTP-gt911_2:833:7: error: 'lv_indev_drv_register' was not declared in this scope
lv_indev_drv_register( &indev_drv );
^~~~~~~~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:833:7: note: suggested alternative: 'lv_fs_drv_register'
lv_indev_drv_register( &indev_drv );
^~~~~~~~~~~~~~~~~~~~~
lv_fs_drv_register
LVGL_Arduino-3.5CTP-gt911_2:848:7: error: 'lv_demo_widgets' was not declared in this scope
lv_demo_widgets(); // OK
^~~~~~~~~~~~~~~
E:\projects_electronics_programming\tft\esp32_3248s035\LVGL_Arduino-3.5CTP-gt911_2\LVGL_Arduino-3.5CTP-gt911_2.ino:848:7: note: suggested alternative: 'lv_demos_create'
lv_demo_widgets(); // OK
^~~~~~~~~~~~~~~
lv_demos_create
exit status 1
variable or field 'my_disp_flush' declared void
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
This is the code example I'm using:
LVGL_Arduino-3.5CTP-gt911_2.zip
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eagl1
commented on July 2, 2024
I had to uncomment these lines:
static const uint16_t screenWidth = 320;
static const uint16_t screenHeight = 480;
And add this:
typedef struct {
void * buf1;
void * buf2;
uint32_t size; // Size of each buffer in bytes
} lv_disp_draw_buf_t;
At E:\Programs_Files\Arduino\libraries\lvgl\src\display\lv_display.h
It compiles but nothing shows on the display.
from lvgl.
eagl1
commented on July 2, 2024
Why do you want to add this?
Because it's not there and if I don't add it in one of the header files, I will get an error. I even didn't find any declaration anywhere about that typedef, I got it by asking chatgpt.
You want to customize the display buffer, e.g. Buffer size Number of buffers? If so, you can adjust it here.
All I want now is to get the display to work. Even TFT_eSPI examples aren't working. So, now I better know what is the display problem and get it to work with TFT_eSPI examples then run lvgl examples.
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eagl1
commented on July 2, 2024
I opened a new issue in Bodmer TFT_eSPI library:
https://github.com/Bodmer/TFT_eSPI/issues/3323
I'm waiting for the support because nothing shows on the display running any of the library's examples.
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eagl1
commented on July 2, 2024
I flashed the board with the binary in the folder package and it worked to its original demo code it came with:
But programming it with arduino platform doesn't work.
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lvgl-bot
commented on July 2, 2024
We need some feedback on this issue.
Now we mark this as "stale" because there was no activity here for 14 days.
Remove the "stale" label or comment else this will be closed in 7 days.
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eagl1
commented on July 2, 2024
Anyway, I was able to program the board with:
#include <Arduino_GFX_Library.h>.
So I will try to know the related issues on lvgl if it worked with me eventually.
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Related Issues (20)
- Alternative solutions for the implementation of lv_obj_is_valid() HOT 9
- toutch freeze gui HOT 4
- README has broken picture HOT 2
- Assertion on lv_obj_send_event when using lv_screen_load_anim HOT 4
- How to delete dots on a line chart HOT 1
- Draw arc not working if LV_DRAW_SDL is enabled. HOT 2
- How to use rounder_cb in LVGL9.1 HOT 3
- lv_event.c void function have a return code HOT 8
- lv_timer_handler hangs when running on separate thread on ESP32 using FREERTOS using Arduino framework HOT 2
- I think there is an issue when refreshing the display HOT 2
- Online simulator broken HOT 3
- Make Grids and Flex Layout Visible for Debugging HOT 3
- My SSD1619 driver not working, how to fix it? HOT 4
- Compile Error with Code Blocks 20.03 (solved) HOT 2
- Hardware Rotation in Generic MIPI Display Driver HOT 2
- documentation for msgbox needs to be updated. HOT 2
- How can I using a callback function of events handle in a class? HOT 2
- Event Sequence
- Does 9.1 have LV_COLOR_16_SWAP
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