EFUSE

EFUSE API Status

API	BK7237	BK7237_cp1
`bk_efuse_driver_init()`	Y	Y
`bk_efuse_driver_deinit()`	Y	Y
`bk_efuse_write()`	Y	Y
`bk_efuse_read()`	Y	Y

Efuse API Reference

Header File

efuse.h

Functions

bk_err_t bk_efuse_driver_init(void)

Init the EFUSE driver.

This API init the resoure common:

Init EFUSE driver control memory

Attention: 1. This API should be called before any other EFUSE APIs.

Returns

BK_OK: succeed
others: other errors.

bk_err_t bk_efuse_driver_deinit(void)

Deinit the EFUSE driver.

This API free all resource related to EFUSE and disable EFUSE.

Returns

BK_OK: succeed
others: other errors.

bk_err_t bk_efuse_write_byte(uint8_t addr, uint8_t data)

Efuse write operation.

Parameters

addr – efuse write address
data – efuse write data

Returns

BK_OK: succeed
BK_ERR_EFUSE_DRIVER_NOT_INIT: EFUSE driver not init
BK_ERR_EFUSE_ADDR_OUT_OF_RANGE: EFUSE address is out of range
BK_ERR_EFUSE_CANNOT_WRTIE: EFUSE cannot write, cannot change bit from 1 to 0
BK_ERR_EFUSE_WRTIE_NOT_EQUAL: EFUSE data read is not equal to the data written
others: other errors.

bk_err_t bk_efuse_read_byte(uint8_t addr, uint8_t *data)

Efuse read operation.

Parameters

addr – read address
data – pointer to accept value of efuse read data

Returns

BK_OK: succeed
BK_ERR_EFUSE_DRIVER_NOT_INIT: EFUSE driver not init
BK_ERR_EFUSE_ADDR_OUT_OF_RANGE: EFUSE address is out of range
others: other errors.

Efuse API Typedefs

Header File

efuse_types.h

Header File

hal/hal_efuse_types.h

Macros

BK_ERR_EFUSE_DRIVER_NOT_INIT: EFUSE driver not init

BK_ERR_EFUSE_ADDR_OUT_OF_RANGE: EFUSE address is out of range

BK_ERR_EFUSE_CANNOT_WRTIE: EFUSE cannot write, cannot change bit from 1 to 0

BK_ERR_EFUSE_WRTIE_NOT_EQUAL: EFUSE data read is not equal to the data written

BK_ERR_EFUSE_READ_FAIL: EFUSE data read fail

Type Definitions

typedef uint8_t efuse_unit_t: efuse uint id