Getting Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled. for 0x42019b4b: esp_code_scanner_set_config at /media/gansichen/UBUNTU/home/gansichen/esp-s3/esp-code-scanner/components/esp-code-scanner/scanner/img_scanner.c:29 0x42009625: decode_task at C:/Users/trainee/workspace_V1/ESP32S3_QR_RFID_READER/main/main.c:52 0x4037d559: vPortTaskWrapper at C:/Espressif/frameworks/esp-idf-v5.1.2/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:162

[nitinGangurde]

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Issue or Suggestion Description

Below is the code for above problem in

Board :- lilygo esp32-s3 DRAM ;- 16MB IDF-version :- 5.1.2

include "Global.h"

include "Gvar.h"

include "esp_code_scanner.h"

static const char *QR_TAG = "APP_CODE_SCANNER";

uint8_t mac[MAC_SIZE];

static int64_t last_qr_read_time = 0; // Last QR read time static const int64_t READ_INTERVAL_MS = 2000; // QR and RFID read interval time

/ Task created for decoding the QR code / static void decode_task() { / Check if esp32 camera module is initialize successfully or not / if(ESP_OK != init_camera()) { return; }

camera_fb_t *fb = NULL;                                       // Initialize the camera buffer with NULL data
char *predata = NULL;                                         // Initialize the previous store data of QR code scan with NULL data
bool qr_detected = false;                                     // It keep track of the QR code detection
int64_t time1, time2;
esp_code_scanner_symbol_t result;                             // Structure to store the QR decoded data into the result

while (1)
{
    /* Get the frame buffer of image captured by the esp32 camera module */
    fb = esp_camera_fb_get();
    if (fb == NULL)
    {
        ESP_LOGI(QR_TAG, "camera get failed\n");
        continue;
    }

    time1 = esp_timer_get_time();
    if (time1 - last_qr_read_time < READ_INTERVAL_MS * 1000)
    {
        /* Send the frame buffer of the QR captured by the esp32 camera module */
        esp_camera_fb_return(fb);
        vTaskDelay(10 / portTICK_PERIOD_MS);
        continue;
    }

    /* QR Decode Progress */
    esp_image_scanner_t *esp_scn = esp_code_scanner_create();
    esp_code_scanner_config_t config = {ESP_CODE_SCANNER_MODE_FAST, ESP_CODE_SCANNER_IMAGE_RGB565, fb->width, fb->height};
    esp_code_scanner_set_config(esp_scn, config);
    int decoded_num = esp_code_scanner_scan_image(esp_scn, fb->buf);

    /* To check if QR code is detected or not detected */
    if (decoded_num)
    {
        /* Get the data of QR code */
        result = esp_code_scanner_result(esp_scn);
        time2 = esp_timer_get_time();

        /* Check for QR Data received from esp32 camera module */
        if (result.data != NULL)
        {
            /* If QR data received then compare the data of Previous QR and Current QR data */
            if (!qr_detected || strcmp(predata, result.data) != 0)
            {

                /* Publish the QR data to the MQTT */
                //MQTT_SendQRRFIDData(mergeStrings("READER/", string, "/", "QR", 0), result.data, 2);

                printf("QR Decoded %s \n",result.data);

                /* Free previous data and assign new data */
                free(predata);

                /* Store the duplicate data of QR into previous data */
                predata = strdup(result.data);

                qr_detected = true;
            }

        }

        last_qr_read_time = time2;
    }
    else
    {
        if(qr_detected)
        {
            qr_detected = false;
            free(predata);
            predata = NULL;
        }
    }

    /* After scanning the QR code destroy the image captured by the esp32 camera module */
    esp_code_scanner_destroy(esp_scn);

    /* Return the esp32 camera frame buffer */
    esp_camera_fb_return(fb);
    vTaskDelay(10 / portTICK_PERIOD_MS);
}

}

void app_main(void) { esp_task_wdt_deinit();

/* Task for Scanning the QR code */
xTaskCreatePinnedToCore(decode_task, QR_TAG, 4 * 1024, NULL, 0, NULL, 0);

}