wear_levelling example don't work with 512K partitions size (IDFGH-7517)

[nopnop2002]

Environment

$ idf.py --version
ESP-IDF v5.0-dev-3202-ga2d5041492-dirty

Problem Description

I tried this.

I changed partitions_example.csv:

# Name,   Type, SubType, Offset,  Size, Flags
# Note: if you have increased the bootloader size, make sure to update the offsets to avoid overlap
nvs,      data, nvs,     0x9000,  0x6000,
phy_init, data, phy,     0xf000,  0x1000,
factory,  app,  factory, 0x10000, 1M,
storage,  data, fat,            , 512K,
#storage,  data, fat,     ,        1M,

example don't work.

Debug Logs

I (27) boot: ESP-IDF v5.0-dev-3202-ga2d5041492-dirty 2nd stage bootloader
I (27) boot: compile time 11:42:42
I (28) boot: chip revision: 1
I (32) boot_comm: chip revision: 1, min. bootloader chip revision: 0
I (39) boot.esp32: SPI Speed      : 40MHz
I (44) boot.esp32: SPI Mode       : DIO
I (48) boot.esp32: SPI Flash Size : 2MB
I (53) boot: Enabling RNG early entropy source...
I (58) boot: Partition Table:
I (62) boot: ## Label            Usage          Type ST Offset   Length
I (69) boot:  0 nvs              WiFi data        01 02 00009000 00006000
I (77) boot:  1 phy_init         RF data          01 01 0000f000 00001000
I (84) boot:  2 factory          factory app      00 00 00010000 00100000
I (91) boot:  3 storage          Unknown data     01 81 00110000 00080000
I (99) boot: End of partition table
I (103) boot_comm: chip revision: 1, min. application chip revision: 0
I (110) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=08864h ( 34916) map
I (132) esp_image: segment 1: paddr=0001888c vaddr=3ffb0000 size=02648h (  9800) load
I (136) esp_image: segment 2: paddr=0001aedc vaddr=40080000 size=0513ch ( 20796) load
I (147) esp_image: segment 3: paddr=00020020 vaddr=400d0020 size=1a704h (108292) map
I (186) esp_image: segment 4: paddr=0003a72c vaddr=4008513c size=06954h ( 26964) load
I (197) esp_image: segment 5: paddr=00041088 vaddr=50000000 size=00010h (    16) load
I (203) boot: Loaded app from partition at offset 0x10000
I (204) boot: Disabling RNG early entropy source...
I (217) cpu_start: Pro cpu up.
I (218) cpu_start: Starting app cpu, entry point is 0x40081040
0x40081040: call_start_cpu1 at /home/nop/esp-idf/components/esp_system/port/cpu_start.c:152

I (0) cpu_start: App cpu up.
I (232) cpu_start: Pro cpu start user code
I (232) cpu_start: cpu freq: 160000000 Hz
I (232) cpu_start: Application information:
I (237) cpu_start: Project name:     wear_levelling_example
I (243) cpu_start: App version:      v5.0-dev-3202-ga2d5041492-dirty
I (250) cpu_start: Compile time:     Jun  2 2022 11:42:34
I (256) cpu_start: ELF file SHA256:  acfddc36ac10872c...
I (262) cpu_start: ESP-IDF:          v5.0-dev-3202-ga2d5041492-dirty
I (269) heap_init: Initializing. RAM available for dynamic allocation:
I (276) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (282) heap_init: At 3FFB2F90 len 0002D070 (180 KiB): DRAM
I (289) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (295) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (301) heap_init: At 4008BA90 len 00014570 (81 KiB): IRAM
I (309) spi_flash: detected chip: generic
I (312) spi_flash: flash io: dio
W (316) spi_flash: Detected size(4096k) larger than the size in the binary image header(2048k). Using the size in the binary image header.
I (330) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (340) example: Mounting FAT filesystem
W (350) vfs_fat_spiflash: f_mount failed (13)
I (350) vfs_fat_spiflash: Formatting FATFS partition, allocation unit size=4096
E (360) vfs_fat_spiflash: f_mkfs failed (14)
E (360) example: Failed to mount FATFS (ESP_FAIL)

[igrr]

Hi @nopnop2002,
For the default 4kB FAT sector size, 512kB is a bit too short for the minimal FAT partition plus wear levelling data. FAT has a minimum of 128 sectors, so the FAT part needs at least 512kB. Wear levelling needs another 4 sectors (16kB) at this partition size.

If you need to use a partition smaller than 528kB, you can change the FAT sector size to 512 bytes in menuconfig.

[nopnop2002]

Thank you for your quick response.

I added the following to sdkconfig.defaults.

It worked.

#
# Wear Levelling
#
CONFIG_WL_SECTOR_SIZE_512=y
CONFIG_WL_SECTOR_SIZE=512
CONFIG_WL_SECTOR_MODE_SAFE=y
CONFIG_WL_SECTOR_MODE=1

[franz-ms-muc]

same Error in this Example:

https://github.com/espressif/esp-idf/blob/master/examples/peripherals/i2c/i2c_tools/main/i2ctools_example_main.c