ESp32 with LVGA and GC9A01 round Display

Im trying to get the LVGL V8 Library to work but so far no luck. And since I have spend nearly 3 whole days on research with try and error and I downt know any further… I hope that somebody here can provide me with some new ideas to fix it.

I just wanted to get the example to work on a round GC9A01 Display. But I only get colored pixel noise on the screen.

The Code and Output is as follows:

	#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_freertos_hooks.h"
#include "freertos/semphr.h"
#include "esp_system.h"
#include "driver/gpio.h"

// Special GC9A01 related Headers
//#include "esp_lcd_gc9a01.h"
#include "lvgl.h"
#include "lvgl_helpers.h"

#include "demos/lv_demos.h"

 *      DEFINES
#define TAG "demo"
#define LV_MEME_SIZE    (50ul * 1024ul)
#define LVGL_LCD_BUF_SIZE 240*8
#define MY_DISP_HOR_RES 240
#define MY_DISP_VER_RES 240

static void lv_tick_task(void *arg);
static void lvglDemoTask(void *pvParameter);
static void create_demo_application(void);

void app_main() {
    /* If you want to use a task to create the graphic, you NEED to create a Pinned task
     * Otherwise there can be problem such as memory corruption and so on.
     * NOTE: When not using Wi-Fi nor Bluetooth you can pin the guiTask to core 0 */
    xTaskCreatePinnedToCore(lvglDemoTask, "gui", 32000, NULL, 0, NULL, 0);

 *   Function Definitions
static void create_demo_application(void)

static void lv_tick_task(void *arg) {
    (void) arg;


static void lvglDemoTask(void *pvParameter) {

    (void) pvParameter;


    /*A static or global variable to store the buffers*/
    static lv_disp_draw_buf_t disp_buf;

    /*Static or global buffer(s). The second buffer is optional*/
    static lv_color_t buf_1[MY_DISP_HOR_RES * 10];
    static lv_color_t buf_2[MY_DISP_VER_RES * 10];

    /*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
    lv_disp_draw_buf_init(&disp_buf, buf_1, buf_2, MY_DISP_HOR_RES*10);

    static lv_disp_drv_t disp_drv;          /*A variable to hold the drivers. Must be static or global.*/
    lv_disp_drv_init(&disp_drv);            /*Basic initialization*/
    disp_drv.draw_buf = &disp_buf;          /*Set an initialized buffer*/
    //disp_drv.flush_cb = my_flush_cb;        /*Set a flush callback to draw to the display*/
    disp_drv.hor_res = 240;                 /*Set the horizontal resolution in pixels*/
    disp_drv.ver_res = 240;                 /*Set the vertical resolution in pixels*/

    lv_disp_t * disp;
    disp = lv_disp_drv_register(&disp_drv); /*Register the driver and save the created display objects*/

    /* Create and start a periodic timer interrupt to call lv_tick_inc */
    const esp_timer_create_args_t periodic_timer_args = {
        .callback = &lv_tick_task,
        .name = "periodic_gui"
    esp_timer_handle_t periodic_timer;
    ESP_ERROR_CHECK(esp_timer_create(&periodic_timer_args, &periodic_timer));
    ESP_ERROR_CHECK(esp_timer_start_periodic(periodic_timer, LV_TICK_PERIOD_MS * 1000));

     while (1) {



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ets Jul 29 2019 12:21:46

configsip: 0, SPIWP:0xee
mode:DIO, clock div:2
ho 0 tail 12 room 4
entry 0x40080694
␛[0;32mI (29) boot: ESP-IDF 4.4.1 2nd stage bootloader␛[0m
␛[0;32mI (29) boot: compile time 09:26:38␛[0m
␛[0;32mI (29) boot: chip revision: 3␛[0m
␛[0;32mI (32) boot_comm: chip revision: 3, min. bootloader chip revision: 0␛[0m
␛[0;32mI (39) boot.esp32: SPI Speed      : 40MHz␛[0m
␛[0;32mI (44) boot.esp32: SPI Mode       : DIO␛[0m
␛[0;32mI (48) boot.esp32: SPI Flash Size : 16MB␛[0m
␛[0;32mI (53) boot: Enabling RNG early entropy source...␛[0m
␛[0;32mI (58) boot: Partition Table:␛[0m
␛[0;32mI (62) boot: ## Label            Usage          Type ST Offset   Length␛[0m
␛[0;32mI (69) boot:  0 nvs              WiFi data        01 02 00009000 00006000␛[0m
␛[0;32mI (76) boot:  1 phy_init         RF data          01 01 0000f000 00001000␛[0m
␛[0;32mI (84) boot:  2 factory          factory app      00 00 00010000 00100000␛[0m
␛[0;32mI (91) boot: End of partition table␛[0m
␛[0;32mI (96) boot_comm: chip revision: 3, min. application chip revision: 0␛[0m
␛[0;32mI (103) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=23b0ch (146188) map␛[0m
␛[0;32mI (164) esp_image: segment 1: paddr=00033b34 vaddr=3ffb0000 size=026d4h (  9940) load␛[0m
␛[0;32mI (168) esp_image: segment 2: paddr=00036210 vaddr=40080000 size=09e08h ( 40456) load␛[0m
␛[0;32mI (187) esp_image: segment 3: paddr=00040020 vaddr=400d0020 size=48f34h (298804) map␛[0m
␛[0;32mI (295) esp_image: segment 4: paddr=00088f5c vaddr=40089e08 size=03368h ( 13160) load␛[0m
␛[0;32mI (301) esp_image: segment 5: paddr=0008c2cc vaddr=50000000 size=00010h (    16) load␛[0m
␛[0;32mI (307) boot: Loaded app from partition at offset 0x10000␛[0m
␛[0;32mI (308) boot: Disabling RNG early entropy source...␛[0m
␛[0;32mI (324) cpu_start: Pro cpu up.␛[0m
␛[0;32mI (325) cpu_start: Starting app cpu, entry point is 0x40082478␛[0m
␛[0;32mI (0) cpu_start: App cpu up.␛[0m
␛[0;32mI (340) cpu_start: Pro cpu start user code␛[0m
␛[0;32mI (340) cpu_start: cpu freq: 160000000␛[0m
␛[0;32mI (340) cpu_start: Application information:␛[0m
␛[0;32mI (345) cpu_start: Project name:     BA_Test_lvgl␛[0m
␛[0;32mI (350) cpu_start: App version:      1␛[0m
␛[0;32mI (355) cpu_start: Compile time:     Nov  6 2022 09:26:03␛[0m
␛[0;32mI (361) cpu_start: ELF file SHA256:  6749270671493832...␛[0m
␛[0;32mI (367) cpu_start: ESP-IDF:          4.4.1␛[0m
␛[0;32mI (372) heap_init: Initializing. RAM available for dynamic allocation:␛[0m
␛[0;32mI (379) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM␛[0m
␛[0;32mI (385) heap_init: At 3FFD5A98 len 0000A568 (41 KiB): DRAM␛[0m
␛[0;32mI (391) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM␛[0m
␛[0;32mI (397) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM␛[0m
␛[0;32mI (404) heap_init: At 4008D170 len 00012E90 (75 KiB): IRAM␛[0m
␛[0;32mI (411) spi_flash: detected chip: generic␛[0m
␛[0;32mI (415) spi_flash: flash io: dio␛[0m
␛[0;32mI (419) cpu_start: Starting scheduler on PRO CPU.␛[0m
␛[0;32mI (0) cpu_start: Starting scheduler on APP CPU.␛[0m
␛[0;32mI (445) lvgl_helpers: Display buffer size: 9600␛[0m
␛[0;32mI (445) lvgl_helpers: Initializing SPI master for display␛[0m
␛[0;32mI (445) lvgl_helpers: Configuring SPI host SPI3_HOST␛[0m
␛[0;32mI (465) lvgl_helpers: MISO pin: -1, MOSI pin: 23, SCLK pin: 18, IO2/WP pin: -1, IO3/HD pin: -1␛[0m
␛[0;32mI (465) lvgl_helpers: Max transfer size: 19200 (bytes)␛[0m
␛[0;32mI (465) lvgl_helpers: Initializing SPI bus...␛[0m
␛[0;32mI (485) disp_spi: Adding SPI device␛[0m
␛[0;32mI (485) disp_spi: Clock speed: 40000000Hz, mode: 0, CS pin: 5␛[0m
␛[0;32mI (705) GC9A01: Initialization.␛[0m
␛[0;32mI (925) GC9A01: Display orientation: PORTRAIT␛[0m
␛[0;32mI (925) GC9A01: 0x36 command value: 0x08␛[0m
␛[0;32mI (925) disp_backlight: Setting LCD backlight: 100%␛[0m