ESP32 hangs when running my application in the OTA partition.

[JainamShah]

Hello,
I am working on the update using OTA. I have experienced a problem with my application. After downloading and restarting, my application hangs in the OTA partition. I have attached the console logs here.

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1. I (29) boot: ESP-IDF v4.3-dirty 2nd stage bootloader
2. I (29) boot: compile time 10:16:50
3. I (29) boot: chip revision: 1
4. I (32) boot_comm: chip revision: 1, min. bootloader chip revision: 0
5. I (39) boot.esp32: SPI Speed      : 40MHz
6. I (44) boot.esp32: SPI Mode       : DIO
7. I (48) boot.esp32: SPI Flash Size : 4MB
8. I (53) boot: Enabling RNG early entropy source...
9. I (58) boot: Partition Table:
10. I (62) boot: ## Label            Usage          Type ST Offset   Length
11. I (69) boot:  0 nvs              WiFi data        01 02 00009000 00004000
12. I (77) boot:  1 otadata          OTA data         01 00 0000d000 00002000
13. I (84) boot:  2 phy_init         RF data          01 01 0000f000 00001000
14. I (91) boot:  3 factory          factory app      00 00 00010000 00100000
15. I (99) boot:  4 ota_0            OTA app          00 10 00110000 00100000
16. I (106) boot:  5 ota_1            OTA app          00 11 00210000 00100000
17. I (114) boot: End of partition table
18. I (118) boot_comm: chip revision: 1, min. application chip revision: 0
19. I (125) esp_image: segment 0: paddr=00110020 vaddr=3f400020 size=25da0h (155040) map
20. I (193) esp_image: segment 1: paddr=00135dc8 vaddr=3ffb0000 size=04480h ( 17536) load
21. I (200) esp_image: segment 2: paddr=0013a250 vaddr=40080000 size=05dc8h ( 24008) load
22. I (210) esp_image: segment 3: paddr=00140020 vaddr=400d0020 size=a5178h (676216) map
23. I (466) esp_image: segment 4: paddr=001e51a0 vaddr=40085dc8 size=11094h ( 69780) load
24. I (496) esp_image: segment 5: paddr=001f623c vaddr=50000200 size=00010h (    16) load
25. I (508) boot: Loaded app from partition at offset 0x110000
26. I (509) boot: Disabling RNG early entropy source...
27. I (520) cpu_start: Pro cpu up.
28. I (520) cpu_start: Starting app cpu, entry

GeSHi © Codebox Plus Extension

As you see the current partition is ota_0 and it hangs at the last line every time.

Also, I have manually flashed the same application binary file on this OTA partition, it still hangs. And same working on factory app partition.

Kindly help me with this.

Regards,
Jainam shah.

[ESP_Sprite]

Just to make sure: your ESP32 indeed has 4MiB of flash, right?

[JainamShah]

Yes

[azeater]

Sorry to bump an old topic but I have the exact same issue. I'm using ESP-IDF v. 4.3.0 on Platform IO.

My project involves having a small test application written to the factory partition and on successful completion sets the next boot partition to ota_0. Since this is done in the factory I don't wish to do an OTA update from factory - I'd rather flash the partition manually and just set it after the fact.

My partition map is the following:

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# Name,   Type, SubType, Offset,  Size, Flags
nvs,      data, nvs,     0x9000,   0x4000,
otadata,  data, ota,     0xd000,   0x2000,
phy_init, data, phy,     0xf000,   0x1000,
factory,   app,  factory,  0x10000,  0x80000,
ota_0,    app,  ota_0,   0x90000,  0x140000,
ota_1,    app,  ota_1,   0x1D0000, 0x140000,

I use the following command to flash my images:

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esptool.py --chip esp32 --port "COM20" --baud 460800 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x1000 bootloader.bin 0x8000 partitions.bin 0xd000 ota_data_initial.bin 0x10000 test.bin 0x90000 app.bin

In my factory app, I set the OTA boot partition using

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esp_ota_set_boot_partition

but the application just hangs at

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(0) cpu_start: App cpu up.␛[0m

Has anyone had a similar issue and solved it? Or perhaps could share an example of a working project with a factory/test app in conjunction with 2 ota partitions.