What is the difference between data partitions fctry and nvs ?

[ytan86]

Hi

This is the partition.csv from rainmaker examples/switch:

Code: [Select all] [Expand/Collapse]

1. sec_cert,  0x3F, ,0xd000,    0x3000, ,  # Never mark this as an encrypted partition
2. nvs,      data, nvs,     0x10000,   0x6000,
3. otadata,  data, ota,     ,          0x2000
4. phy_init, data, phy,     ,          0x1000,
5. ota_0,    app,  ota_0,   0x20000,   1600K,
6. ota_1,    app,  ota_1,   ,          1600K,
7. fctry,    data, nvs,     0x340000,  0x6000

GeSHi © Codebox Plus Extension

What is fctry for? If is reserved for rainmaker only, or can I use fctry with esp_err_tnvs_flash_init_partition?

[ESP_Piyush]

Hello,

The nvs partition has information like Wi-Fi credentials, custom device names, and any other information you store using nvs calls. The fctry is also an nvs partition, but it is used for information like node id, private key and certificate required for cloud communication. You may consider it as a read-only partition which isn't erased during a factory reset operation.

Regards,
Piyush