ESP32.enableBT(false) - where is that setting stored?

[espruino-discuss3]

Posted at 2024-04-17 by @MaBecker

Hi, there is that espouse.py on GitHub that can read the efuse data.

// disable BT
ESP32.enableBLE(false);
//this can onyl be reverted by another call with true as argument

now reading the efuse section

espefuse.py summary --format json --port $COMPORT | grep _BT -A6
    "DISABLE_BT": {
        "bit_len": 1,
        "block": 0,
        "category": "config",
        "description": "Disables Bluetooth",
        "efuse_type": "bool",
        "name": "DISABLE_BT",
        "pos": 1,
        "readable": true,
        "value": false,
        "word": 3,
        "writeable": true
    },

"value" : false does not match the expected result ....

Any hints?

[espruino-discuss3]

Posted at 2024-04-17 by @gfwilliams

Well, the function at https://github.com/espruino/Espruino/blob/8f3a9cb52/targets/esp32/jswrap_esp32.c#L246 uses ESP32_Set_NVS_Status(ESP_NETWORK_BLE,enable);

And that is https://github.com/espruino/Espruino/blob/79a91cb8825a3a2b2efbfed92087da42e377d85d/targets/esp32/jshardwareESP32.c#L43

So it seems it uses nvs_open/nvs_set_u32 with bleStatus - I don't think it's related to efuse?

---

Posted at 2024-04-17 by @MaBecker

Thanks, so will dig here Non-Volatile Storage for a solution.

// esp32/build/app/partitions_espruino.csv
....
nvs,data,nvs,0x9000,12K
....

Found this tool named Espressif-NVS-Analyzer to decode the nvs data.