Hi dizcza ,

The IDF 5.2 has added one more indirection inside the nvs security. The concept is called nvs_security_provider.

The on-flash format is identical — read_security_cfg_flash_enc() in 5.2 ultimately calls the same nvs_flash_read_security_cfg() against the same nvs_keys partition. So if ...

PETERESP
Let me clarify the ocupied space calculation for 8192 Bytes BLOB on the NVS partition.

After the first write

Page 1
1 entry - namespace metadata
1 entry - BLOB_INDEX metadata (first value)
1 entry - BLOB_DATA metadata chunk #1
123 entries - chunk #1 payload (123*32 = 3936 B)

Page 2
1 ...

Hi zliudr ,

You can get an idea how to modify the partition table from the running app from the example: https://github.com/espressif/esp-idf/tree/master/examples/system/ota/partitions_ota#partition-ota-example
Please read the warning related to the need for reliable power conditions when doing ...

Hi zliudr ,

When using the littlefs, the performance can be influenced by the available free space. You can try to change the size of the littlefs partition (incerease it) to figure out whether it helps the unencrypted performance.

You can also use the benchmark https://github.com/espressif/esp ...

Hi @ThomasESP32 ,

There is an example showing OTA manipulating partition table in ESP-IDF repo: https://github.com/espressif/esp-idf/tr ... ta-example
Hope it helps you.

Hi DevinKung ,

The problem may be caused by the write buffer not being 64 byte aligned.

Please check the address of the buffer and it's alignment to the 64 byte boundary - print the result of ((uintptr_t)buf % 64 == 0)

If the buffer is not 64 byte aligned, you can try to allocate the buffer from ...

Hi Huy_Tran_DF ,

There is definitely no need to create a gap between the end of the app partition and subsequent nvs partition.

From your post, it is not obvious, whether the OTA updated (ESP_Home) application was built using the same version of IDF as the initial one. If it is was the case, there ...

Hi @13302657252 ,

The resistor R18 (CLK) should not be present. Please remove it and retry.

Hi 13302657252 ,

Thanks for the answers to my questions. When I put everything together, the initialisation of the card works correctly if:
- Card is removed and inserted into the slot after reset of the chip
- The verbose log level is enabled.
- and the strange behavior related to the soldering ...

Hi 13302657252 ,

The "2. After soldering and heating, initialization succeeds the first few times, but fails after cooling." suggests some problem related to the reliability of the physical wiring rather than software issue.

Could you please clarify:

1. Whether you have only single prototype ...