ESP32-3248S035C with GT911 touch chip, arduino demo compile error #6214
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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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I did that:
And get this error: |
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I just want to include this file as a start: In the arduino code I did this: |
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Where |
Have you set // 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 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 |
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 did that I got this error: |
In your |
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I did and got this list of errors: This is the code example I'm using: |
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Try compiling this again. LVGL_Arduino-3.5CTP-gt911_2.zip |
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I had to uncomment these lines: And add this: At It compiles but nothing shows on the display. |
Why do you want to add this? #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 |
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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I opened a new issue in Bodmer TFT_eSPI library: I'm waiting for the support because nothing shows on the display running any of the library's examples. |
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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 version
v9.1.1
What happened?
I ran an example came in
3.5inch_ESP32-3248S035folder, I don't remember where I downloaded it. It includeslvglandTFT_eSPIlibraries.I updated
lvgllibrary and still get this error:In the attachment the example file I used:
LVGL_Arduino-3.5CTP-gt911.zip
How to reproduce?
No response
The text was updated successfully, but these errors were encountered: