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SourceVuESP-IDF Framework and ExamplesESP-IDFesp_efuse_write_block()

esp_efuse_write_block() function

Write key to efuse block starting at the offset and the required size.

Syntax

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Summary

Declaration

Definition

from esp_efuse.h:276

esp_err_t esp_efuse_write_block(esp_efuse_block_t blk, const void* src_key, size_t offset_in_bits, size_t size_bits);

Implemented in esp_efuse_api.c:227

Arguments

Argument

Description

blk

Block number of eFuse.

src_key

A pointer to array that contains the key for writing.

offset_in_bits

Start bit in block.

size_bits

The number of bits required to write.

Return value

- ESP_OK: The operation was successfully completed. - ESP_ERR_INVALID_ARG: Error in the passed arguments. - ESP_ERR_CODING: Error range of data does not match the coding scheme. - ESP_ERR_EFUSE_REPEATED_PROG: Error repeated programming of programmed bits

References

Code

Location

Referrer

esp_err_t esp_efuse_write_block(esp_efuse_block_t blk, const void* src_key, size_t offset_in_bits, size_t size_bits)

esp_efuse_api.c:227

esp_err_t esp_efuse_write_block(esp_efuse_block_t blk, const void* src_key, size_t offset_in_bits, size_t size_bits);

esp_efuse.h:276

esp_efuse_write_block(block, data, 0, blk_len_bit);

esp_efuse_api.c:323

destroy_block()

ESP_EFUSE_CHK(esp_efuse_write_block(block, key, 0, key_size_bytes * 8));

esp_efuse_api_key.c:200

esp_efuse_write_key()

Call Tree

esp_efuse_write_block() is called by 2 functions and calls 1 function:

destroy_block()

esp_efuse_write_key()

esp_efuse_write_block()

esp_efuse_write_field_blob()

Data Use

esp_efuse_write_block() reads 2 variables:

esp_efuse_block_t::EFUSE_BLK0

esp_efuse_block_t::EFUSE_BLK_MAX

esp_efuse_write_block()

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