esp-idf/components/nvs_flash/include/nvs_flash.h

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at

//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef nvs_flash_h
#define nvs_flash_h

#ifdef __cplusplus
extern "C" {
#endif

/** Initialise NVS flash storage with default flash sector layout

    Temporarily, this region is hardcoded as a 12KB (0x3000 byte)
    region starting at 24KB (0x6000 byte) offset in flash.
*/
esp_err_t nvs_flash_init(void);

/** Initialise NVS flash storage with custom flash sector layout

    @param baseSector Flash sector (units of 4096 bytes) offset to start NVS.
    @param sectorCount Length (in flash sectors) of NVS region.

    @return ESP_OK if flash was successfully initialised.

    @note Use this parameter if you're not using the options in menuconfig for
          configuring flash layout & partition table.
*/
esp_err_t nvs_flash_init_custom(uint32_t baseSector, uint32_t sectorCount);


#ifdef __cplusplus
}
#endif


#endif /* nvs_flash_h */