Initializing both LCD and Camera causes Interrupt wdt timeout (IDFGH-13426)

[pkvarnfors]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

v5,3

Espressif SoC revision.

ESP32-S3 (QFN56) (revision v0.1)

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

PowerShell

Development Kit.

ESP32-S3-DevKitC-1 v1.1

Power Supply used.

USB

What is the expected behavior?

Initializing both LCD using esp_lcd and then Camera using esp_camera should result in working LCD and Camera without errors during initialization.

What is the actual behavior?

After initializing the LCD using esp_lcd with 8-bit i8080 and then initializing esp_camera with an OV2640 a WDT Intrerrupt Timeout occurs. This happens when the ISR for camera VSYNC is installed in ll_cam_init_isr()

When running only the LCD it works and also when running only the camera it also works.
When initializing the camera first and then the LCD the WDT happens during initialzing the LCD.

Steps to reproduce.

The WDT happens during initialization of the periphials. The attached code should trigger the error during init_camera().

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_timer.h"
#include "esp_lcd_panel_io.h"
#include "esp_lcd_panel_vendor.h"
#include "esp_lcd_panel_ops.h"
#include "driver/gpio.h"
#include "esp_err.h"
#include "esp_log.h"

#include "esp_camera.h"

static const char *TAG = "esp32_i8080_camera";

#define LCD_PIXEL_CLOCK_HZ     (2 * 1000 * 1000)

#define LCD_BK_LIGHT_ON_LEVEL  1
#define LCD_BK_LIGHT_OFF_LEVEL !LCD_BK_LIGHT_ON_LEVEL
#define LCD_PIN_NUM_DATA0          8
#define LCD_PIN_NUM_DATA1          3
#define LCD_PIN_NUM_DATA2          46
#define LCD_PIN_NUM_DATA3          9
#define LCD_PIN_NUM_DATA4          10
#define LCD_PIN_NUM_DATA5          11
#define LCD_PIN_NUM_DATA6          12
#define LCD_PIN_NUM_DATA7          13
#define LCD_PIN_NUM_RD             -1
#define LCD_PIN_NUM_WR             17
#define LCD_PIN_NUM_CS             -1
#define LCD_PIN_NUM_DC             16 // RS
#define LCD_PIN_NUM_RST            2
#define LCD_PIN_NUM_BK_LIGHT       1


#define CAM_PIN_PWDN -1  //power down is not used
#define CAM_PIN_RESET -1 //software reset will be performed
#define CAM_PIN_XCLK 15
#define CAM_PIN_SIOD 7
#define CAM_PIN_SIOC 6

#define CAM_PIN_D7 42
#define CAM_PIN_D6 41
#define CAM_PIN_D5 40
#define CAM_PIN_D4 39
#define CAM_PIN_D3 0
#define CAM_PIN_D2 45
#define CAM_PIN_D1 21
#define CAM_PIN_D0 17
#define CAM_PIN_VSYNC 48
#define CAM_PIN_HREF 47
#define CAM_PIN_PCLK 14


// The pixel number in horizontal and vertical
#define LCD_H_RES              800
#define LCD_V_RES              480

// Bit number used to represent command and parameter
#define LCD_CMD_BITS           16
#define LCD_PARAM_BITS         16

// Supported alignment: 16, 32, 64. A higher alignment can enables higher burst transfer size, thus a higher i80 bus throughput.
#define PSRAM_DATA_ALIGNMENT   64

static camera_config_t camera_config = {
    .pin_pwdn = CAM_PIN_PWDN,
    .pin_reset = CAM_PIN_RESET,
    .pin_xclk = CAM_PIN_XCLK,
    .pin_sccb_sda = CAM_PIN_SIOD,
    .pin_sccb_scl = CAM_PIN_SIOC,

    .pin_d7 = CAM_PIN_D7,
    .pin_d6 = CAM_PIN_D6,
    .pin_d5 = CAM_PIN_D5,
    .pin_d4 = CAM_PIN_D4,
    .pin_d3 = CAM_PIN_D3,
    .pin_d2 = CAM_PIN_D2,
    .pin_d1 = CAM_PIN_D1,
    .pin_d0 = CAM_PIN_D0,
    .pin_vsync = CAM_PIN_VSYNC,
    .pin_href = CAM_PIN_HREF,
    .pin_pclk = CAM_PIN_PCLK,

    .xclk_freq_hz = 20000000,
    .ledc_timer = LEDC_TIMER_0,
    .ledc_channel = LEDC_CHANNEL_0,

    .pixel_format = PIXFORMAT_JPEG,  //YUV422,GRAYSCALE,RGB565,JPEG
    .frame_size = FRAMESIZE_QVGA,    //QQVGA-UXGA, For ESP32, do not use sizes above QVGA when not JPEG. The performance of the ESP32-S series has improved a lot, but JPEG mode always gives better frame rates.

    .jpeg_quality = 12, //0-63, for OV series camera sensors, lower number means higher quality
    .fb_count = 1,       //When jpeg mode is used, if fb_count more than one, the driver will work in continuous mode.
    .fb_location = CAMERA_FB_IN_PSRAM,
    .grab_mode = CAMERA_GRAB_WHEN_EMPTY,
};

static esp_err_t init_camera(void)
{
    ESP_LOGI(TAG, "Camera Init");
    esp_err_t err = esp_camera_init(&camera_config);
    if (err != ESP_OK)
    {
        ESP_LOGE(TAG, "Camera Init Failed");
        return err;
    }
    ESP_LOGI(TAG, "Camera Init OK");

    return ESP_OK;
}

void app_main(void)
{
    ESP_LOGI(TAG, "Turn off LCD backlight");
    gpio_config_t bk_gpio_config = {
        .mode = GPIO_MODE_OUTPUT,
        .pin_bit_mask = 1ULL << LCD_PIN_NUM_BK_LIGHT
    };
    ESP_ERROR_CHECK(gpio_config(&bk_gpio_config));
    gpio_set_level(LCD_PIN_NUM_BK_LIGHT, LCD_BK_LIGHT_OFF_LEVEL);

    ESP_LOGI(TAG, "Initialize Intel 8080 bus");
    esp_lcd_i80_bus_handle_t i80_bus = NULL;
    esp_lcd_i80_bus_config_t bus_config = {
        .clk_src = LCD_CLK_SRC_DEFAULT,
        .dc_gpio_num = LCD_PIN_NUM_DC,
        .wr_gpio_num = LCD_PIN_NUM_WR,
        .data_gpio_nums = {
            LCD_PIN_NUM_DATA0,
            LCD_PIN_NUM_DATA1,
            LCD_PIN_NUM_DATA2,
            LCD_PIN_NUM_DATA3,
            LCD_PIN_NUM_DATA4,
            LCD_PIN_NUM_DATA5,
            LCD_PIN_NUM_DATA6,
            LCD_PIN_NUM_DATA7,
        },
        .bus_width = 8,
        .max_transfer_bytes = LCD_H_RES * 100 * sizeof(uint16_t),
        .psram_trans_align = PSRAM_DATA_ALIGNMENT,
        .sram_trans_align = 4,
    };
    ESP_ERROR_CHECK(esp_lcd_new_i80_bus(&bus_config, &i80_bus));

    esp_lcd_panel_io_handle_t io_handle = NULL;
    esp_lcd_panel_io_i80_config_t io_config = {
        .cs_gpio_num = LCD_PIN_NUM_CS,
        .pclk_hz = LCD_PIXEL_CLOCK_HZ,
        .trans_queue_depth = 10,
        .dc_levels = {
            .dc_idle_level = 0,
            .dc_cmd_level = 0,
            .dc_dummy_level = 0,
            .dc_data_level = 1,
        },
        .flags = {
            .swap_color_bytes = 0, // !LV_COLOR_16_SWAP, // Swap can be done in LvGL (default) or DMA
        },
        .lcd_cmd_bits = LCD_CMD_BITS,
        .lcd_param_bits = LCD_PARAM_BITS,
    };
    ESP_ERROR_CHECK(esp_lcd_new_panel_io_i80(i80_bus, &io_config, &io_handle));

    esp_lcd_panel_handle_t panel_handle = NULL;
    ESP_LOGI(TAG, "Install LCD driver for nt35510");
    esp_lcd_panel_dev_config_t panel_config = {
        .reset_gpio_num = LCD_PIN_NUM_RST,
        .rgb_endian = LCD_RGB_ENDIAN_RGB,
        .bits_per_pixel = 16,
    };
    ESP_ERROR_CHECK(esp_lcd_new_panel_nt35510(io_handle, &panel_config, &panel_handle));

    esp_lcd_panel_reset(panel_handle);
    esp_lcd_panel_init(panel_handle);

    // user can flush pre-defined pattern to the screen before we turn on the screen or backlight
    ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(panel_handle, true));

    ESP_LOGI(TAG, "Turn on LCD backlight");
    gpio_set_level(LCD_PIN_NUM_BK_LIGHT, LCD_BK_LIGHT_ON_LEVEL);

    if(ESP_OK != init_camera()) {
        ESP_LOGI(TAG, "No camera");
    }

    ESP_LOGI(TAG, "Taking picture...");
    camera_fb_t *pic = esp_camera_fb_get();

    // use pic->buf to access the image
    ESP_LOGI(TAG, "Picture taken! Its size was: %zu bytes", pic->len);
    esp_camera_fb_return(pic);

    while (1) {
        // raise the task priority of LVGL and/or reduce the handler period can improve the performance
        vTaskDelay(pdMS_TO_TICKS(10));
    }
}

Debug Logs.

I (1399) main_task: Calling app_main()
I (1409) esp32_i8080_camera: Turn off LCD backlight
I (1409) gpio: GPIO[1]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1419) esp32_i8080_camera: Initialize Intel 8080 bus
D (1429) intr_alloc: Connected src 24 to int 8 (cpu 0)
D (1429) gdma: new group (0) at 0x3fca6720
D (1439) gdma: new pair (0,0) at 0x3fca67ac
D (1439) gdma: new tx channel (0,0) at 0x3fca66e8
D (1449) lcd_panel.io.i80: new i80 bus(0) @0x3fca6460, 40 dma nodes
D (1449) lcd_panel.io.i80: new i80 lcd panel io @0x3c050b4c on bus(0)
I (1459) esp32_i8080_camera: Install LCD driver for nt35510
I (1469) gpio: GPIO[2]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
D (1479) lcd_panel.nt35510: new nt35510 panel @0x3fca68cc
I (1599) esp32_i8080_camera: Turn on LCD backlight
I (1599) esp32_i8080_camera: Camera Init
D (1599) gdma: new rx channel (0,0) at 0x3fca6978
I (1599) s3 ll_cam: DMA Channel=0
I (1599) cam_hal: cam init ok
D (1609) camera: Enabling XCLK output
D (1609) camera: Initializing SCCB
I (1609) sccb: pin_sda 7 pin_scl 6
I (1619) sccb: sccb_i2c_port=0
D (1619) intr_alloc: Connected src 42 to int 9 (cpu 0)
D (1629) camera: Searching for camera address
I (1639) camera: Detected camera at address=0x30
I (1639) camera: Detected OV2640 camera
D (1639) ov2640: OV2640 Attached
I (1639) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
D (1649) camera: Doing SW reset of sensor
I (1729) cam_hal: buffer_size: 16384, half_buffer_size: 1024, node_buffer_size: 1024, node_cnt: 16, total_cnt: 15
I (1729) cam_hal: Allocating 15360 Byte frame buffer in PSRAM
D (1739) intr_alloc: Connected src 66 to int 8 (cpu 0)
Guru Meditation Error: Core  0 panic'ed (Interrupt wdt timeout on CPU0).

Core  0 register dump:
PC      : 0x40376958  PS      : 0x00060034  A0      : 0x4037798c  A1      : 0x3fc96c10
0x40376958: shared_intr_isr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/intr_alloc.c:442
0x4037798c: _xt_lowint1 at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/xtensa_vectors.S:1240

A2      : 0x3fca66bc  A3      : 0x00000008  A4      : 0x8037676c  A5      : 0x4037daf2
0x4037daf2: _frxt_int_enter at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/portasm.S:140

A6      : 0x3fcaad0c  A7      : 0x3fca66cc  A8      : 0x00000002  A9      : 0x00000000
A10     : 0x00000001  A11     : 0xffffffff  A12     : 0x8037673c  A13     : 0x00060023
A14     : 0x3fcaad0c  A15     : 0x0000cdcd  SAR     : 0x00000018  EXCCAUSE: 0x00000005
EXCVADDR: 0x00000000  LBEG    : 0x400570e8  LEND    : 0x400570f3  LCOUNT  : 0x00000000
0x400570e8: memset in ROM
0x400570f3: memset in ROM

Core  0 was running in ISR context:
EPC1    : 0x42026d83  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x40376958
0x42026d83: uart_hal_write_txfifo at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/hal/uart_hal_iram.c:27
0x40376958: shared_intr_isr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/intr_alloc.c:442



Backtrace: 0x40376955:0x3fc96c10 0x40377989:0x3fc96c30 0x400559dd:0x3fc9cf40 0x4037da6b:0x3fc9cf50 0x42004d32:0x3fc9cf70 0x42016e77:0x3fc9cfc0 0x4200d1a8:0x3fc9cff0 0x4200c8af:0x3fc9d020 0x4200a4d3:0x3fc9d060 0x4200a6e3:0x3fc9d080 0x42029133:0x3fc9d160 0x4037d6c5:0x3fc9d190
0x40376955: vPortEnterCritical at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h:568
 (inlined by) shared_intr_isr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/intr_alloc.c:440
0x40377989: _xt_lowint1 at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/xtensa_vectors.S:1240
0x400559dd: _xtos_set_intlevel in ROM
0x4037da6b: vPortClearInterruptMaskFromISR at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h:560
 (inlined by) vPortExitCritical at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:504
0x42004d32: esp_intr_alloc_intrstatus at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/intr_alloc.c:650
0x42016e77: ll_cam_init_isr at C:/Code/embedded/esp/esp32_i8080_camera/managed_components/espressif__esp32-camera/target/esp32s3/ll_cam.c:412
0x4200d1a8: cam_config at C:/Code/embedded/esp/esp32_i8080_camera/managed_components/espressif__esp32-camera/driver/cam_hal.c:405
0x4200c8af: esp_camera_init at C:/Code/embedded/esp/esp32_i8080_camera/managed_components/espressif__esp32-camera/driver/esp_camera.c:302
0x4200a4d3: init_camera at C:/Code/embedded/esp/esp32_i8080_camera/main/main.c:107
0x4200a6e3: app_main at C:/Code/embedded/esp/esp32_i8080_camera/main/main.c:188
0x42029133: main_task at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/app_startup.c:208
0x4037d6c5: vPortTaskWrapper at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:134



Core  1 register dump:
PC      : 0x40378ff6  PS      : 0x00060734  A0      : 0x82003b75  A1      : 0x3fc9dfe0
0x40378ff6: esp_cpu_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/cpu.c:64

A2      : 0x00000000  A3      : 0x00000000  A4      : 0x3fc9c030  A5      : 0x3fc9c010
A6      : 0x4037619c  A7      : 0x00000001  A8      : 0x820199be  A9      : 0x3fc9dfa0
0x4037619c: ipc_task at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_system/esp_ipc.c:53

A10     : 0x00000000  A11     : 0x00000000  A12     : 0x3fc9c010  A13     : 0x3fc9bff0
A14     : 0x00000001  A15     : 0x3fc9e1b0  SAR     : 0x00000000  EXCCAUSE: 0x00000005
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000


Backtrace: 0x40378ff3:0x3fc9dfe0 0x42003b72:0x3fc9e000 0x4037e609:0x3fc9e020 0x4037d6c5:0x3fc9e040
0x40378ff3: xt_utils_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/include/xt_utils.h:82
 (inlined by) esp_cpu_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/cpu.c:55
0x42003b72: esp_vApplicationIdleHook at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_system/freertos_hooks.c:58
0x4037e609: prvIdleTask at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/tasks.c:4344 (discriminator 1)
0x4037d6c5: vPortTaskWrapper at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:134

More Information.

We have tried with different software and hardware setups with the same result, including standard devkits and a custom board.
The example used above is used with a ESP32-S3-DevkitC-1 v1.1, a NT35510 LCD driver in 8-bit i8080 mode and a OV2640 Camera connected via a ESP-LyraP-Cam v1.1 board (from a Kaluga kit).

We have also tried to run the LCD and Camera on different CPUs but with no difference.

I have traced the shard ISR handler and see different behavior with and without initializing the LCD before the camera.
The values in the log below are:
ISR Interrupt status register: Status register value - Status register mask - Shared interrupt enabled ## Triggered if Mask and Value matches.

Just initializing the camera (works):

I (2350) s3 ll_cam: Inter Alloc GDMA Reg  6003f00c, Mask 2
I (2360) s3 ll_cam: Inter Alloc CAM  Reg  6004106c, Mask 4
...
ISR 6004106c: 4-4 - Enabled ## Triggered
ISR 6003f00c: 0-2 - Enabled

ISR 6004106c: 4-4 - Enabled ## Triggered
ISR 6003f00c: 0-2 - Enabled

ISR 6004106c: 0-4 - Enabled
ISR 6003f00c: 2-2 - Enabled ## Triggered

Initializing LCD first and then Camera (gives Interrupt WDT Timeout):

I (5680) lcd_panel.io.i80: Inter Alloc LCD  Reg  6004106c, Mask 2
...
I (2350) s3 ll_cam: Inter Alloc GDMA Reg  6003f00c, Mask 2
I (2360) s3 ll_cam: Inter Alloc CAM  Reg  6004106c, Mask 4
...

ISR 6004106c: 2-4 - Enabled
ISR 6003f00c: 0-2 - Enabled
ISR 6004106c: 2-2

ISR 6004106c: 2-4 - Enabled
ISR 6003f00c: 0-2 - Enabled
ISR 6004106c: 2-2

ISR 6004106c: 2-4 - Enabled
ISR 6003f00c: 0-2 - Enabled
ISR 6004106c: 2-2

ISR 6004106c: 2-4 - Enabled
ISR 6003f00c: 0-2 - Enabled
ISR 6004106c: 2-2

...
And then Guru Meditation Error: Core 0 panic'ed (Interrupt wdt timeout on CPU0)

[WangYuxin-esp]

@pkvarnfors Hi, Thank you for reporting this issue. We have already dealt with a similar issue here, so could you check if the ESP32-camera you are currently using includes this change?

[pkvarnfors]

Hi,
Yes I have read that issue and it looks similar. I have tested the suggested solution in the referenced issue to run camera and lcd on different CPUs but with no success.

The changes referenced in your comment is included in our code which uses SDK v5.3 and esp_camera 2.0.10.

[WangYuxin-esp]

The changes here will add some modifications when LCD_CAM_ISR_IRAM_SAFE is enabled. Has this option been enabled in your configuration menu?

[pkvarnfors]

Yes, it is. I have tested with different combinations of LCD and CAM IRAM_SAFE, and also to initialize the camera and lcd in different order. When initilizing the camera first and then the lcd, the camera init works and the WDT trigger in the lcd init, but after the panic reboot the WDT triggers in the camera init. The same if I use the hardware reset, it is just after a power cycle that I get the camera init to work.

I (1385) main_task: Calling app_main()
I (1395) esp32_i8080_camera: Start camera_task
I (1395) esp32_i8080_camera: Initilizing camera
D (1405) gdma: new group (0) at 0x3fca70c4
D (1405) gdma: new pair (0,0) at 0x3fca7150
D (1415) gdma: new rx channel (0,0) at 0x3fca7088
I (1415) s3 ll_cam: DMA Channel=0
I (1425) cam_hal: cam init ok
D (1425) camera: Enabling XCLK output
D (1425) camera: Initializing SCCB
I (1435) sccb: pin_sda 7 pin_scl 6
I (1435) sccb: sccb_i2c_port=0
D (1435) intr_alloc: Connected src 42 to int 2 (cpu 1)
D (1445) camera: Searching for camera address
I (1455) camera: Detected camera at address=0x30
I (1455) camera: Detected OV2640 camera
D (1455) ov2640: OV2640 Attached
I (1465) camera: Camera PID=0x26 VER=0x42 MIDL=0x7f MIDH=0xa2
D (1465) camera: Doing SW reset of sensor
I (1565) s3 ll_cam: node_size: 3840, nodes_per_line: 1, lines_per_node: 6
I (1565) s3 ll_cam: dma_half_buffer_min:  3840, dma_half_buffer: 15360, lines_per_half_buffer: 24, dma_buffer_size: 30720
I (1565) cam_hal: buffer_size: 30720, half_buffer_size: 15360, node_buffer_size: 3840, node_cnt: 8, total_cnt: 10
I (1585) cam_hal: Allocating 153600 Byte frame buffer in PSRAM
D (1585) intr_alloc: Connected src 66 to int 3 (cpu 1)
D (1595) intr_alloc: Connected src 24 to int 3 (cpu 1)
I (1595) cam_hal: cam config ok
D (1605) camera: Setting frame size to 320x240
I (1605) ov2640: Set PLL: clk_2x: 1, clk_div: 3, pclk_auto: 1, pclk_div: 8
I (1685) esp32_i8080_camera: Camera Init OK
I (1685) esp32_i8080_camera: Camera Init done
I (2895) esp32_i8080_camera: Turn off LCD backlight
I (2895) gpio: GPIO[1]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (2895) esp32_i8080_camera: Initialize Intel 8080 bus
D (2895) intr_alloc: Connected src 24 to int 8 (cpu 0)
D (2905) gdma: new tx channel (0,0) at 0x3fcaf840
D (2905) lcd_panel.io.i80: new i80 bus(0) @0x3fcaf5b8, 40 dma nodes
Guru Meditation Error: Core  1 panic'ed (Interrupt wdt timeout on CPU1). 

Core  1 register dump:
PC      : 0x4037d74b  PS      : 0x00060034  A0      : 0x8037693b  A1      : 0x3fc96ef0
0x4037d74b: vPortClearInterruptMaskFromISR at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h:560
 (inlined by) vPortExitCritical at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:504

A2      : 0x3fc95758  A3      : 0xffffffff  A4      : 0x82018498  A5      : 0x00060023
A6      : 0x3fc95fbc  A7      : 0x0000abab  A8      : 0x40001c38  A9      : 0x00000000
0x40001c38: __call__xtos_set_intlevel in ROM

A10     : 0x00060021  A11     : 0x00000000  A12     : 0xb33fffff  A13     : 0x3fc9d9e0
A14     : 0x00060323  A15     : 0x00000000  SAR     : 0x00000000  EXCCAUSE: 0x00000006
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000
Core  1 was running in ISR context:
EPC1    : 0x42025867  EPC2    : 0x00000000  EPC3    : 0x00000000  EPC4    : 0x4037d74b
0x42025867: uart_hal_write_txfifo at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/hal/uart_hal_iram.c:27
0x4037d74b: vPortClearInterruptMaskFromISR at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h:560
 (inlined by) vPortExitCritical at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:504



Backtrace: 0x4037d748:0x3fc96ef0 0x40376938:0x3fc96f10 0x403779e5:0x3fc96f30 0x4037904f:0x3fc9da50 0x420039fe:0x3fc9da70 0x4037e2e9:0x3fc9da90 0x4037d3a5:0x3fc9dab0
0x4037d748: vPortClearInterruptMaskFromISR at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/include/freertos/portmacro.h:560
 (inlined by) vPortExitCritical at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:504
0x40376938: shared_intr_isr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/intr_alloc.c:454
0x403779e5: _xt_lowint1 at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/xtensa_vectors.S:1240
0x4037904f: xt_utils_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/include/xt_utils.h:82
 (inlined by) esp_cpu_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/cpu.c:55
0x420039fe: esp_vApplicationIdleHook at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_system/freertos_hooks.c:58
0x4037e2e9: prvIdleTask at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/tasks.c:4344 (discriminator 1)
0x4037d3a5: vPortTaskWrapper at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:134



Core  0 register dump:
PC      : 0x40379052  PS      : 0x00060834  A0      : 0x82003a01  A1      : 0x3fc9d2f0
0x40379052: esp_cpu_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/cpu.c:64

A2      : 0x00000000  A3      : 0x0000cdcd  A4      : 0x8037d74e  A5      : 0x3fc9ca80
A6      : 0x00060323  A7      : 0x00000000  A8      : 0x820184a2  A9      : 0x3fc9d2b0
A10     : 0x00000000  A11     : 0x3fc9a990  A12     : 0x00000000  A13     : 0x01ffffff
A14     : 0x3fc95fb4  A15     : 0x3fc9d4bc  SAR     : 0x00000000  EXCCAUSE: 0x00000006
EXCVADDR: 0x00000000  LBEG    : 0x00000000  LEND    : 0x00000000  LCOUNT  : 0x00000000


Backtrace: 0x4037904f:0x3fc9d2f0 0x420039fe:0x3fc9d310 0x4037e2e9:0x3fc9d330 0x4037d3a5:0x3fc9d350
0x4037904f: xt_utils_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/xtensa/include/xt_utils.h:82
 (inlined by) esp_cpu_wait_for_intr at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_hw_support/cpu.c:55
0x420039fe: esp_vApplicationIdleHook at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/esp_system/freertos_hooks.c:58
0x4037e2e9: prvIdleTask at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/tasks.c:4344 (discriminator 1)
0x4037d3a5: vPortTaskWrapper at C:/Apps/Espressif/frameworks/v5.3/esp-idf/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:134

Attached is the complete VS Code project where the camera is running in its own task on CPU1.

esp32_i8080_camera.zip