KMU HAL¶
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group
nrf_kmu_hal
Hardware access layer for managing the Key Management Unit (KMU) peripheral.
Enums
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enum
nrf_kmu_task_t
¶ KMU tasks.
Values:
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enumerator
NRF_KMU_TASK_PUSH_KEYSLOT
¶ Push a key slot over secure APB.
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enumerator
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enum
nrf_kmu_event_t
¶ KMU events.
Values:
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enumerator
NRF_KMU_EVENT_KEYSLOT_PUSHED
¶ Key successfully pushed over secure APB.
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enumerator
NRF_KMU_EVENT_KEYSLOT_REVOKED
¶ Key has been revoked and cannot be tasked for selection.
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enumerator
NRF_KMU_EVENT_KEYSLOT_ERROR
¶ No key slot selected or no destination address defined or error during push mechanism.
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enumerator
Functions
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NRF_STATIC_INLINE void
nrf_kmu_task_trigger
(NRF_KMU_Type *p_reg, nrf_kmu_task_t task)¶ Function for activating a specific KMU task.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] Task to be activated.
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NRF_STATIC_INLINE uint32_t
nrf_kmu_task_address_get
(NRF_KMU_Type const *p_reg, nrf_kmu_task_t task)¶ Function for getting the address of a specific KMU task register.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
task – [in] Requested task.
- Returns
Address of the specified task register.
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NRF_STATIC_INLINE void
nrf_kmu_event_clear
(NRF_KMU_Type *p_reg, nrf_kmu_event_t event)¶ Function for clearing a specific KMU event.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Event to clear.
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NRF_STATIC_INLINE bool
nrf_kmu_event_check
(NRF_KMU_Type const *p_reg, nrf_kmu_event_t event)¶ Function for retrieving the state of the KMU event.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Event to be checked.
- Returns true
The event has been generated.
- Returns false
The event has not been generated.
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NRF_STATIC_INLINE uint32_t
nrf_kmu_event_address_get
(NRF_KMU_Type const *p_reg, nrf_kmu_event_t event)¶ Function for getting the address of a specific KMU event register.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
event – [in] Requested event.
- Returns
Address of the specified event register.
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NRF_STATIC_INLINE void
nrf_kmu_int_enable
(NRF_KMU_Type *p_reg, uint32_t mask)¶ Function for enabling specified interrupts.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Interrupts to be enabled.
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NRF_STATIC_INLINE void
nrf_kmu_int_disable
(NRF_KMU_Type *p_reg, uint32_t mask)¶ Function for disabling specified interrupts.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Interrupts to be disabled.
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NRF_STATIC_INLINE uint32_t
nrf_kmu_int_enable_check
(NRF_KMU_Type const *p_reg, uint32_t mask)¶ Function for checking if the specified interrupts are enabled.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
mask – [in] Mask of interrupts to be checked.
- Returns
Mask of enabled interrupts.
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NRF_STATIC_INLINE uint32_t
nrf_kmu_intpend_get
(NRF_KMU_Type const *p_reg)¶ Function for retrieving the state of interrupts.
Function returns bitmask. Please use nrf_kmu_int_mask_t to check interrupts status.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
- Returns
Bitmask with pending interrupts bits.
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NRF_STATIC_INLINE uint32_t
nrf_kmu_status_get
(NRF_KMU_Type const *p_reg)¶ Function for getting status bits of the KMU operation.
Function returns bitmask. Please use nrf_kmu_status_t to check operations status.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
- Returns
Bitmask with operation status bits.
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NRF_STATIC_INLINE void
nrf_kmu_keyslot_set
(NRF_KMU_Type *p_reg, uint8_t keyslot_id)¶ Function for selecting the key slot ID.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
keyslot_id – [in] Key slot ID to be read over AHB or pushed over secure APB when TASKS_PUSH_KEYSLOT is started.
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NRF_STATIC_INLINE uint8_t
nrf_kmu_keyslot_get
(NRF_KMU_Type const *p_reg)¶ Function for getting the key slot ID.
- Parameters
p_reg – [in] Pointer to the structure of registers of the peripheral.
- Returns
Key slot ID.
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enum