ESP32 Forum

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I (35) boot: ESP-IDF v5.5-490-gdf59d05d1d-dirty 2nd stage bootloader
I (35) boot: compile time Sep  1 2025 14:05:22
I (35) boot: Multicore bootloader
I (37) boot: chip revision: v0.1
I (40) boot: efuse block revision: v0.1
I (43) boot.esp32p4: SPI Speed      : 80MHz
I (47) boot.esp32p4: SPI Mode       : DIO
I (51) boot.esp32p4: SPI Flash Size : 2MB
I (55) boot: Enabling RNG early entropy source...
I (59) boot: Partition Table:
I (62) boot: ## Label            Usage          Type ST Offset   Length
I (68) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (74) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (81) boot:  2 factory          factory app      00 00 00010000 00100000
I (88) boot: End of partition table
I (91) esp_image: segment 0: paddr=00010020 vaddr=40030020 size=0c5ech ( 50668) map
I (106) esp_image: segment 1: paddr=0001c614 vaddr=30100000 size=00044h (    68) load
I (107) esp_image: segment 2: paddr=0001c660 vaddr=4ff00000 size=039b8h ( 14776) load
I (116) esp_image: segment 3: paddr=00020020 vaddr=40000020 size=2e4d8h (189656) map
I (148) esp_image: segment 4: paddr=0004e500 vaddr=4ff039b8 size=0be14h ( 48660) load
I (157) esp_image: segment 5: paddr=0005a31c vaddr=4ff0f800 size=02444h (  9284) load
I (163) boot: Loaded app from partition at offset 0x10000
I (164) boot: Disabling RNG early entropy source...
W (174) pmu_pvt: blk_version is less than 2, pvt auto dbias init not supported in efuse.
I (176) cpu_start: Multicore app
I (186) cpu_start: Pro cpu start user code
I (186) cpu_start: cpu freq: 360000000 Hz
I (186) app_init: Application information:
I (186) app_init: Project name:     sd_card
I (190) app_init: App version:      v5.5-490-gdf59d05d1d-dirty
I (195) app_init: Compile time:     Sep  1 2025 14:04:52
I (200) app_init: ELF file SHA256:  36ee08c88...
I (205) app_init: ESP-IDF:          v5.5-490-gdf59d05d1d-dirty
I (210) efuse_init: Min chip rev:     v0.1
I (214) efuse_init: Max chip rev:     v1.99 
I (218) efuse_init: Chip rev:         v0.1
I (222) heap_init: Initializing. RAM available for dynamic allocation:
I (228) heap_init: At 4FF13410 len 00027BB0 (158 KiB): RAM
I (233) heap_init: At 4FF3AFC0 len 00004BF0 (18 KiB): RAM
I (238) heap_init: At 4FF40000 len 00060000 (384 KiB): RAM
I (244) heap_init: At 50108080 len 00007F80 (31 KiB): RTCRAM
I (249) heap_init: At 30100044 len 00001FBC (7 KiB): TCM
I (255) spi_flash: detected chip: gd
I (257) spi_flash: flash io: dio
W (260) spi_flash: Detected size(16384k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (273) main_task: Started on CPU0
I (313) main_task: Calling app_main()
I (313) example: Initializing SD card
I (313) example: Using SDMMC peripheral
W (313) ldo: The voltage value 0 is out of the recommended range [500, 2700]
I (323) example: Mounting filesystem
E (343) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
E (343) vfs_fat_sdmmc: sdmmc_card_init failed (0x107).
E (343) example: Failed to initialize the card (ESP_ERR_TIMEOUT). Make sure SD card lines have pull-up resistors in place.
I (353) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
E (321) sdmmc_io: sdmmc_io_reset: unexpected return: 0x108
E (321) vfs_fat_sdmmc: sdmmc_card_init failed (0x108).
E (331) example: Failed to initialize the card (ESP_ERR_INVALID_RESPONSE). Make sure SD card lines have pull-up resistors in place.
I (341) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
E (361) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x109
E (361) vfs_fat_sdmmc: sdmmc_card_init failed (0x109).
E (361) example: Failed to initialize the card (ESP_ERR_INVALID_CRC). Make sure SD card lines have pull-up resistors in place.
I (371) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
E (721) sdmmc_cmd: sdmmc_read_sectors_dma: sdmmc_send_cmd returned 0x107, failed to get status (0x107)
E (721) diskio_sdmmc: sdmmc_read_blocks failed (0x107)
W (721) vfs_fat_sdmmc: failed to mount card (1)
E (731) vfs_fat_sdmmc: mount_to_vfs failed (0xffffffff).
E (731) example: Failed to mount filesystem. If you want the card to be formatted, set the EXAMPLE_FORMAT_IF_MOUNT_FAILED menuconfig option.
I (751) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
E (3341) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
E (3341) vfs_fat_sdmmc: sdmmc_card_init failed (0x107).
E (3341) example: Failed to initialize the card (ESP_ERR_TIMEOUT). Make sure SD card lines have pull-up resistors in place.
I (3351) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
E (341) sdmmc_common: sdmmc_init_ocr: send_op_cond (1) returned 0x107
E (341) vfs_fat_sdmmc: sdmmc_card_init failed (0x107).
E (341) example: Failed to initialize the card (ESP_ERR_TIMEOUT). Make sure SD card lines have pull-up resistors in place.
I (351) main_task: Returned from app_main()

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I (321) example: Mounting filesystem
I (461) example: Filesystem mounted
Name: 00000
Type: SDSC
Speed: 20.00 MHz (limit: 20.00 MHz)
Size: 1909MB
CSD: ver=1, sector_size=512, capacity=3909632 read_bl_len=10
SSR: bus_width=4
I (471) example: Opening file /sdcard/hello.txt
I (521) example: File written
I (541) example: Renaming file /sdcard/hello.txt to /sdcard/foo.txt
I (551) example: Reading file /sdcard/foo.txt
I (551) example: Read from file: 'Hello 00000!'
I (551) example: Opening file /sdcard/nihao.txt
I (591) example: File written
I (591) example: Reading file /sdcard/nihao.txt
I (591) example: Read from file: 'Nihao 00000!'
I (591) example: Card unmounted
I (591) main_task: Returned from app_main()