efuse API

[中文]

efuse (Electrically Fusable) API interface.

Header File

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 @Notice: Each efuse address area has specific usage, please apply the area from PM before write data to the efuse address.

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.