esp-idf/components/efuse/esp32/include/esp_efuse.h
2021-05-31 06:43:23 +02:00

47 lines
1.9 KiB
C

/*
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Type of eFuse blocks for ESP32
*/
typedef enum {
EFUSE_BLK0 = 0, /**< Number of eFuse block. Reserved. */
EFUSE_BLK1 = 1, /**< Number of eFuse block. Used for Flash Encryption. If not using that Flash Encryption feature, they can be used for another purpose. */
EFUSE_BLK_KEY0 = 1, /**< Number of eFuse block. Used for Flash Encryption. If not using that Flash Encryption feature, they can be used for another purpose. */
EFUSE_BLK_ENCRYPT_FLASH = 1, /**< Number of eFuse block. Used for Flash Encryption. If not using that Flash Encryption feature, they can be used for another purpose. */
EFUSE_BLK2 = 2, /**< Number of eFuse block. Used for Secure Boot. If not using that Secure Boot feature, they can be used for another purpose. */
EFUSE_BLK_KEY1 = 2, /**< Number of eFuse block. Used for Secure Boot. If not using that Secure Boot feature, they can be used for another purpose. */
EFUSE_BLK_SECURE_BOOT = 2, /**< Number of eFuse block. Used for Secure Boot. If not using that Secure Boot feature, they can be used for another purpose. */
EFUSE_BLK3 = 3, /**< Number of eFuse block. Uses for the purpose of the user. */
EFUSE_BLK_KEY2 = 3, /**< Number of eFuse block. Uses for the purpose of the user. */
EFUSE_BLK_KEY_MAX = 4,
EFUSE_BLK_MAX = 4,
} esp_efuse_block_t;
/**
* @brief Type of coding scheme
*/
typedef enum {
EFUSE_CODING_SCHEME_NONE = 0, /**< None */
EFUSE_CODING_SCHEME_3_4 = 1, /**< 3/4 coding */
EFUSE_CODING_SCHEME_REPEAT = 2, /**< Repeat coding */
} esp_efuse_coding_scheme_t;
#ifdef __cplusplus
}
#endif