nRF52840 only: Hardware access layer for Two Wire Interface Slave with EasyDMA (USBD) peripheral. More...

Enumerations
enum	nrf_usbd_task_t { NRF_USBD_TASK_STARTEPIN0 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[0] ), NRF_USBD_TASK_STARTEPIN1 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[1] ), NRF_USBD_TASK_STARTEPIN2 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[2] ), NRF_USBD_TASK_STARTEPIN3 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[3] ), NRF_USBD_TASK_STARTEPIN4 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[4] ), NRF_USBD_TASK_STARTEPIN5 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[5] ), NRF_USBD_TASK_STARTEPIN6 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[6] ), NRF_USBD_TASK_STARTEPIN7 = offsetof(NRF_USBD_Type, TASKS_STARTEPIN[7] ), NRF_USBD_TASK_STARTISOIN = offsetof(NRF_USBD_Type, TASKS_STARTISOIN ), NRF_USBD_TASK_STARTEPOUT0 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[0]), NRF_USBD_TASK_STARTEPOUT1 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[1]), NRF_USBD_TASK_STARTEPOUT2 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[2]), NRF_USBD_TASK_STARTEPOUT3 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[3]), NRF_USBD_TASK_STARTEPOUT4 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[4]), NRF_USBD_TASK_STARTEPOUT5 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[5]), NRF_USBD_TASK_STARTEPOUT6 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[6]), NRF_USBD_TASK_STARTEPOUT7 = offsetof(NRF_USBD_Type, TASKS_STARTEPOUT[7]), NRF_USBD_TASK_STARTISOOUT = offsetof(NRF_USBD_Type, TASKS_STARTISOOUT ), NRF_USBD_TASK_EP0RCVOUT = offsetof(NRF_USBD_Type, TASKS_EP0RCVOUT ), NRF_USBD_TASK_EP0STATUS = offsetof(NRF_USBD_Type, TASKS_EP0STATUS ), NRF_USBD_TASK_EP0STALL = offsetof(NRF_USBD_Type, TASKS_EP0STALL ), NRF_USBD_TASK_DRIVEDPDM = offsetof(NRF_USBD_Type, TASKS_DPDMDRIVE ), NRF_USBD_TASK_NODRIVEDPDM = offsetof(NRF_USBD_Type, TASKS_DPDMNODRIVE ) }
	USBD tasks. More...
enum	nrf_usbd_event_t { NRF_USBD_EVENT_USBRESET = offsetof(NRF_USBD_Type, EVENTS_USBRESET ), NRF_USBD_EVENT_STARTED = offsetof(NRF_USBD_Type, EVENTS_STARTED ), NRF_USBD_EVENT_ENDEPIN0 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[0] ), NRF_USBD_EVENT_ENDEPIN1 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[1] ), NRF_USBD_EVENT_ENDEPIN2 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[2] ), NRF_USBD_EVENT_ENDEPIN3 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[3] ), NRF_USBD_EVENT_ENDEPIN4 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[4] ), NRF_USBD_EVENT_ENDEPIN5 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[5] ), NRF_USBD_EVENT_ENDEPIN6 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[6] ), NRF_USBD_EVENT_ENDEPIN7 = offsetof(NRF_USBD_Type, EVENTS_ENDEPIN[7] ), NRF_USBD_EVENT_EP0DATADONE = offsetof(NRF_USBD_Type, EVENTS_EP0DATADONE), NRF_USBD_EVENT_ENDISOIN0 = offsetof(NRF_USBD_Type, EVENTS_ENDISOIN ), NRF_USBD_EVENT_ENDEPOUT0 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[0]), NRF_USBD_EVENT_ENDEPOUT1 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[1]), NRF_USBD_EVENT_ENDEPOUT2 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[2]), NRF_USBD_EVENT_ENDEPOUT3 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[3]), NRF_USBD_EVENT_ENDEPOUT4 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[4]), NRF_USBD_EVENT_ENDEPOUT5 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[5]), NRF_USBD_EVENT_ENDEPOUT6 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[6]), NRF_USBD_EVENT_ENDEPOUT7 = offsetof(NRF_USBD_Type, EVENTS_ENDEPOUT[7]), NRF_USBD_EVENT_ENDISOOUT0 = offsetof(NRF_USBD_Type, EVENTS_ENDISOOUT ), NRF_USBD_EVENT_SOF = offsetof(NRF_USBD_Type, EVENTS_SOF ), NRF_USBD_EVENT_USBEVENT = offsetof(NRF_USBD_Type, EVENTS_USBEVENT ), NRF_USBD_EVENT_EP0SETUP = offsetof(NRF_USBD_Type, EVENTS_EP0SETUP ), NRF_USBD_EVENT_DATAEP = offsetof(NRF_USBD_Type, EVENTS_EPDATA ), NRF_USBD_EVENT_ACCESSFAULT = offsetof(NRF_USBD_Type, EVENTS_ACCESSFAULT) }
	USBD events. More...
enum	nrf_usbd_short_mask_t { NRF_USBD_SHORT_EP0DATADONE_STARTEPIN0_MASK = USBD_SHORTS_EP0DATADONE_STARTEPIN0_Msk, NRF_USBD_SHORT_EP0DATADONE_STARTEPOUT0_MASK = USBD_SHORTS_EP0DATADONE_STARTEPOUT0_Msk, NRF_USBD_SHORT_EP0DATADONE_EP0STATUS_MASK = USBD_SHORTS_EP0DATADONE_EP0STATUS_Msk, NRF_USBD_SHORT_ENDEPOUT0_EP0STATUS_MASK = USBD_SHORTS_ENDEPOUT0_EP0STATUS_Msk, NRF_USBD_SHORT_ENDEPOUT0_EP0RCVOUT_MASK = USBD_SHORTS_ENDEPOUT0_EP0RCVOUT_Msk }
	USBD shorts. More...
enum	nrf_usbd_int_mask_t { NRF_USBD_INT_USBRESET_MASK = USBD_INTEN_USBRESET_Msk, NRF_USBD_INT_STARTED_MASK = USBD_INTEN_STARTED_Msk, NRF_USBD_INT_ENDEPIN0_MASK = USBD_INTEN_ENDEPIN0_Msk, NRF_USBD_INT_ENDEPIN1_MASK = USBD_INTEN_ENDEPIN1_Msk, NRF_USBD_INT_ENDEPIN2_MASK = USBD_INTEN_ENDEPIN2_Msk, NRF_USBD_INT_ENDEPIN3_MASK = USBD_INTEN_ENDEPIN3_Msk, NRF_USBD_INT_ENDEPIN4_MASK = USBD_INTEN_ENDEPIN4_Msk, NRF_USBD_INT_ENDEPIN5_MASK = USBD_INTEN_ENDEPIN5_Msk, NRF_USBD_INT_ENDEPIN6_MASK = USBD_INTEN_ENDEPIN6_Msk, NRF_USBD_INT_ENDEPIN7_MASK = USBD_INTEN_ENDEPIN7_Msk, NRF_USBD_INT_EP0DATADONE_MASK = USBD_INTEN_EP0DATADONE_Msk, NRF_USBD_INT_ENDISOIN0_MASK = USBD_INTEN_ENDISOIN_Msk, NRF_USBD_INT_ENDEPOUT0_MASK = USBD_INTEN_ENDEPOUT0_Msk, NRF_USBD_INT_ENDEPOUT1_MASK = USBD_INTEN_ENDEPOUT1_Msk, NRF_USBD_INT_ENDEPOUT2_MASK = USBD_INTEN_ENDEPOUT2_Msk, NRF_USBD_INT_ENDEPOUT3_MASK = USBD_INTEN_ENDEPOUT3_Msk, NRF_USBD_INT_ENDEPOUT4_MASK = USBD_INTEN_ENDEPOUT4_Msk, NRF_USBD_INT_ENDEPOUT5_MASK = USBD_INTEN_ENDEPOUT5_Msk, NRF_USBD_INT_ENDEPOUT6_MASK = USBD_INTEN_ENDEPOUT6_Msk, NRF_USBD_INT_ENDEPOUT7_MASK = USBD_INTEN_ENDEPOUT7_Msk, NRF_USBD_INT_ENDISOOUT0_MASK = USBD_INTEN_ENDISOOUT_Msk, NRF_USBD_INT_SOF_MASK = USBD_INTEN_SOF_Msk, NRF_USBD_INT_USBEVENT_MASK = USBD_INTEN_USBEVENT_Msk, NRF_USBD_INT_EP0SETUP_MASK = USBD_INTEN_EP0SETUP_Msk, NRF_USBD_INT_DATAEP_MASK = USBD_INTEN_EPDATA_Msk, NRF_USBD_INT_ACCESSFAULT_MASK = USBD_INTEN_ACCESSFAULT_Msk }
	USBD interrupts. More...

Functions
__STATIC_INLINE void	nrf_usbd_task_trigger ( nrf_usbd_task_t task)
	Function for activating a specific USBD task. More...
__STATIC_INLINE uint32_t	nrf_usbd_task_address_get ( nrf_usbd_task_t task)
	Function for returning the address of a specific USBD task register. More...
__STATIC_INLINE void	nrf_usbd_event_clear ( nrf_usbd_event_t event)
	Function for clearing a specific event. More...
__STATIC_INLINE bool	nrf_usbd_event_check ( nrf_usbd_event_t event)
	Function for returning the state of a specific event. More...
__STATIC_INLINE bool	nrf_usbd_event_get_and_clear ( nrf_usbd_event_t event)
	Function for getting and clearing the state of specific event. More...
__STATIC_INLINE uint32_t	nrf_usbd_event_address_get ( nrf_usbd_event_t event)
	Function for returning the address of a specific USBD event register. More...
__STATIC_INLINE void	nrf_usbd_shorts_enable (uint32_t short_mask)
	Function for setting a shortcut. More...
__STATIC_INLINE void	nrf_usbd_shorts_disable (uint32_t short_mask)
	Function for clearing shortcuts. More...
__STATIC_INLINE uint32_t	nrf_usbd_shorts_get (void)
	Get the shorts mask. More...
__STATIC_INLINE void	nrf_usbd_int_enable (uint32_t int_mask)
	Function for enabling selected interrupts. More...
__STATIC_INLINE bool	nrf_usbd_int_enable_check (uint32_t int_mask)
	Function for retrieving the state of selected interrupts. More...
__STATIC_INLINE uint32_t	nrf_usbd_int_enable_get (void)
	Function for retrieving the information about enabled interrupts. More...
__STATIC_INLINE void	nrf_usbd_int_disable (uint32_t int_mask)
	Function for disabling selected interrupts. More...
enum	nrf_usbd_eventcause_mask_t { NRF_USBD_EVENTCAUSE_ISOOUTCRC_MASK = USBD_EVENTCAUSE_ISOOUTCRC_Msk, NRF_USBD_EVENTCAUSE_SUSPEND_MASK = USBD_EVENTCAUSE_SUSPEND_Msk, NRF_USBD_EVENTCAUSE_RESUME_MASK = USBD_EVENTCAUSE_RESUME_Msk, NRF_USBD_EVENTCAUSE_READY_MASK = USBD_EVENTCAUSE_READY_Msk }
	EVENTCAUSE register bit masks.
enum	nrf_usbd_busstate_t { NRF_USBD_BUSSTATE_DM_MASK = USBD_BUSSTATE_DM_Msk, NRF_USBD_BUSSTATE_DP_MASK = USBD_BUSSTATE_DP_Msk, NRF_USBD_BUSSTATE_DPDM_LL = (USBD_BUSSTATE_DM_Low << USBD_BUSSTATE_DM_Pos) | (USBD_BUSSTATE_DP_Low << USBD_BUSSTATE_DP_Pos), NRF_USBD_BUSSTATE_DPDM_HL = (USBD_BUSSTATE_DM_Low << USBD_BUSSTATE_DM_Pos) | (USBD_BUSSTATE_DP_High << USBD_BUSSTATE_DP_Pos), NRF_USBD_BUSSTATE_DPDM_LH = (USBD_BUSSTATE_DM_High << USBD_BUSSTATE_DM_Pos) | (USBD_BUSSTATE_DP_Low << USBD_BUSSTATE_DP_Pos), NRF_USBD_BUSSTATE_DPDM_HH = (USBD_BUSSTATE_DM_High << USBD_BUSSTATE_DM_Pos) | (USBD_BUSSTATE_DP_High << USBD_BUSSTATE_DP_Pos), NRF_USBD_BUSSTATE_J = NRF_USBD_BUSSTATE_DPDM_HL, NRF_USBD_BUSSTATE_K = NRF_USBD_BUSSTATE_DPDM_LH, NRF_USBD_BUSSTATE_SE0 = NRF_USBD_BUSSTATE_DPDM_LL, NRF_USBD_BUSSTATE_SE1 = NRF_USBD_BUSSTATE_DPDM_HH }
	BUSSTATE register bit masks.
enum	nrf_usbd_dpdmvalue_t { NRF_USBD_DPDMVALUE_RESUME = USBD_DPDMVALUE_STATE_Resume, NRF_USBD_DPDMVALUE_J = USBD_DPDMVALUE_STATE_J, NRF_USBD_DPMVALUE_K = USBD_DPDMVALUE_STATE_K }
	DPDMVALUE register.
enum	nrf_usbd_dtoggle_t { NRF_USBD_DTOGGLE_NOP = USBD_DTOGGLE_VALUE_Nop, NRF_USBD_DTOGGLE_DATA0 = USBD_DTOGGLE_VALUE_Data0, NRF_USBD_DTOGGLE_DATA1 = USBD_DTOGGLE_VALUE_Data1 }
	Dtoggle value or operation.
enum	nrf_usbd_epstatus_mask_t { NRF_USBD_EPSTATUS_EPIN0_MASK = USBD_EPSTATUS_EPIN0_Msk, NRF_USBD_EPSTATUS_EPIN1_MASK = USBD_EPSTATUS_EPIN1_Msk, NRF_USBD_EPSTATUS_EPIN2_MASK = USBD_EPSTATUS_EPIN2_Msk, NRF_USBD_EPSTATUS_EPIN3_MASK = USBD_EPSTATUS_EPIN3_Msk, NRF_USBD_EPSTATUS_EPIN4_MASK = USBD_EPSTATUS_EPIN4_Msk, NRF_USBD_EPSTATUS_EPIN5_MASK = USBD_EPSTATUS_EPIN5_Msk, NRF_USBD_EPSTATUS_EPIN6_MASK = USBD_EPSTATUS_EPIN6_Msk, NRF_USBD_EPSTATUS_EPIN7_MASK = USBD_EPSTATUS_EPIN7_Msk, NRF_USBD_EPSTATUS_EPOUT0_MASK = USBD_EPSTATUS_EPOUT0_Msk, NRF_USBD_EPSTATUS_EPOUT1_MASK = USBD_EPSTATUS_EPOUT1_Msk, NRF_USBD_EPSTATUS_EPOUT2_MASK = USBD_EPSTATUS_EPOUT2_Msk, NRF_USBD_EPSTATUS_EPOUT3_MASK = USBD_EPSTATUS_EPOUT3_Msk, NRF_USBD_EPSTATUS_EPOUT4_MASK = USBD_EPSTATUS_EPOUT4_Msk, NRF_USBD_EPSTATUS_EPOUT5_MASK = USBD_EPSTATUS_EPOUT5_Msk, NRF_USBD_EPSTATUS_EPOUT6_MASK = USBD_EPSTATUS_EPOUT6_Msk, NRF_USBD_EPSTATUS_EPOUT7_MASK = USBD_EPSTATUS_EPOUT7_Msk }
	EPSTATUS bit masks.
enum	nrf_usbd_dataepstatus_mask_t { NRF_USBD_EPDATASTATUS_EPIN1_MASK = USBD_EPDATASTATUS_EPIN1_Msk, NRF_USBD_EPDATASTATUS_EPIN2_MASK = USBD_EPDATASTATUS_EPIN2_Msk, NRF_USBD_EPDATASTATUS_EPIN3_MASK = USBD_EPDATASTATUS_EPIN3_Msk, NRF_USBD_EPDATASTATUS_EPIN4_MASK = USBD_EPDATASTATUS_EPIN4_Msk, NRF_USBD_EPDATASTATUS_EPIN5_MASK = USBD_EPDATASTATUS_EPIN5_Msk, NRF_USBD_EPDATASTATUS_EPIN6_MASK = USBD_EPDATASTATUS_EPIN6_Msk, NRF_USBD_EPDATASTATUS_EPIN7_MASK = USBD_EPDATASTATUS_EPIN7_Msk, NRF_USBD_EPDATASTATUS_EPOUT1_MASK = USBD_EPDATASTATUS_EPOUT1_Msk, NRF_USBD_EPDATASTATUS_EPOUT2_MASK = USBD_EPDATASTATUS_EPOUT2_Msk, NRF_USBD_EPDATASTATUS_EPOUT3_MASK = USBD_EPDATASTATUS_EPOUT3_Msk, NRF_USBD_EPDATASTATUS_EPOUT4_MASK = USBD_EPDATASTATUS_EPOUT4_Msk, NRF_USBD_EPDATASTATUS_EPOUT5_MASK = USBD_EPDATASTATUS_EPOUT5_Msk, NRF_USBD_EPDATASTATUS_EPOUT6_MASK = USBD_EPDATASTATUS_EPOUT6_Msk, NRF_USBD_EPDATASTATUS_EPOUT7_MASK = USBD_EPDATASTATUS_EPOUT7_Msk }
	DATAEPSTATUS bit masks.
enum	nrf_usbd_isosplit_t { NRF_USBD_ISOSPLIT_OneDir = USBD_ISOSPLIT_SPLIT_OneDir, NRF_USBD_ISOSPLIT_Half = USBD_ISOSPLIT_SPLIT_HalfIN }
	ISOSPLIT configurations.
__STATIC_INLINE void	nrf_usbd_enable (void)
	Function for enabling USBD.
__STATIC_INLINE void	nrf_usbd_disable (void)
	Function for disabling USBD.
__STATIC_INLINE uint32_t	nrf_usbd_eventcause_get (void)
	Function for getting EVENTCAUSE register. More...
__STATIC_INLINE void	nrf_usbd_eventcause_clear (uint32_t flags)
	Function for clearing EVENTCAUSE flags. More...
__STATIC_INLINE uint32_t	nrf_usbd_eventcause_get_and_clear (void)
	Function for getting EVENTCAUSE register and clear flags that are set. More...
__STATIC_INLINE nrf_usbd_busstate_t	nrf_usbd_busstate_get (void)
	Function for getting BUSSTATE register value. More...
__STATIC_INLINE uint32_t	nrf_usbd_haltedep (uint8_t ep)
	Function for getting HALTEDEPIN register value. More...
__STATIC_INLINE bool	nrf_usbd_ep_is_stall (uint8_t ep)
	Function for checking if selected endpoint is stalled. More...
__STATIC_INLINE uint32_t	nrf_usbd_epstatus_get (void)
	Function for getting EPSTATUS register value. More...
__STATIC_INLINE void	nrf_usbd_epstatus_clear (uint32_t flags)
	Function for clearing EPSTATUS register value. More...
__STATIC_INLINE uint32_t	nrf_usbd_epstatus_get_and_clear (void)
	Function for getting and clearing EPSTATUS register value. More...
__STATIC_INLINE uint32_t	nrf_usbd_epdatastatus_get (void)
	Function for getting DATAEPSTATUS register value. More...
__STATIC_INLINE void	nrf_usbd_epdatastatus_clear (uint32_t flags)
	Function for clearing DATAEPSTATUS register value. More...
__STATIC_INLINE uint32_t	nrf_usbd_epdatastatus_get_and_clear (void)
	Function for getting and clearing DATAEPSTATUS register value. More...
#define	NRF_USBD_FRAMECNTR_SIZE ( (USBD_FRAMECNTR_FRAMECNTR_Msk >> USBD_FRAMECNTR_FRAMECNTR_Pos) + 1UL )
	Frame counter size. More...
#define	NRF_USBD_EPISO_FIRST 8
	First isochronous endpoint number. More...
#define	NRF_USBD_EPIN_CNT 9
	Total number of IN endpoints. More...
#define	NRF_USBD_EPOUT_CNT 9
	Total number of OUT endpoints. More...
#define	NRF_USBD_EP_DIR_Msk (1U << 7)
	Mask of the direction bit in endpoint number.
#define	NRF_USBD_EP_DIR_IN (1U << 7)
	The value of direction bit for IN endpoint direction.
#define	NRF_USBD_EP_DIR_OUT (0U << 7)
	The value of direction bit for OUT endpoint direction.
#define	NRF_USBD_EPIN (epnr)   (((uint8_t)(epnr)) | NRF_USBD_EP_DIR_IN )
	Macro for making IN endpoint identifier from endpoint number. More...
#define	NRF_USBD_EPOUT (epnr)   (((uint8_t)(epnr)) | NRF_USBD_EP_DIR_OUT )
	Macro for making OUT endpoint identifier from endpoint number. More...
#define	NRF_USBD_EP_NR_GET (ep)   ((uint8_t)(((uint8_t)(ep)) & 0xFU))
	Macro for extracting the endpoint number from endpoint identifier. More...
#define	NRF_USBD_EPIN_CHECK (ep)   ( (((uint8_t)(ep)) & NRF_USBD_EP_DIR_Msk ) == NRF_USBD_EP_DIR_IN )
	Macro for checking endpoint direction. More...
#define	NRF_USBD_EPOUT_CHECK (ep)   ( (((uint8_t)(ep)) & NRF_USBD_EP_DIR_Msk ) == NRF_USBD_EP_DIR_OUT )
	Macro for checking endpoint direction. More...
#define	NRF_USBD_EPISO_CHECK (ep)   ( NRF_USBD_EP_NR_GET (ep) >= NRF_USBD_EPISO_FIRST )
	Macro for checking if endpoint is isochronous. More...
#define	NRF_USBD_EP_VALIDATE (ep)
	Macro for checking if given number is valid endpoint number. More...

Detailed Description

nRF52840 only: Hardware access layer for Two Wire Interface Slave with EasyDMA (USBD) peripheral.

Macro Definition Documentation

#define NRF_USBD_EP_NR_GET

(

ep

)

((uint8_t)(((uint8_t)(ep)) & 0xFU))

Macro for extracting the endpoint number from endpoint identifier.

Macro that strips out the information about endpoint direction.

Parameters

[in]

ep

Endpoint identifier

Returns

Endpoint number

#define NRF_USBD_EP_VALIDATE

(

ep

)

Value:

         (                                              \
        

         (
         
          NRF_USBD_EPIN_CHECK
         
         (ep) && (
         
          NRF_USBD_EP_NR_GET
         
         (ep) <
         
          NRF_USBD_EPIN_CNT
         
         ))   \
        

         ||                                                                          \
        

         (
         
          NRF_USBD_EPOUT_CHECK
         
         (ep) && (
         
          NRF_USBD_EP_NR_GET
         
         (ep) <
         
          NRF_USBD_EPOUT_CNT
         
         )) \
        

         )
        

Macro for checking if given number is valid endpoint number.

Parameters

ep	Endpoint number to check

Return values

true	The endpoint is valid
false	The endpoint is not valid

#define NRF_USBD_EPIN

(

epnr

)

(((uint8_t)(epnr)) | NRF_USBD_EP_DIR_IN )

Macro for making IN endpoint identifier from endpoint number.

Macro that sets direction bit to make IN endpoint

Parameters

[in]

epnr

Endpoint number

Returns

IN Endpoint identifier

#define NRF_USBD_EPIN_CHECK

(

ep

)

( (((uint8_t)(ep)) & NRF_USBD_EP_DIR_Msk ) == NRF_USBD_EP_DIR_IN )

Macro for checking endpoint direction.

This macro checks if given endpoint has IN direction

Parameters

ep	Endpoint identifier

Return values

true	If the endpoint direction is IN
false	If the endpoint direction is OUT

#define NRF_USBD_EPIN_CNT   9

Total number of IN endpoints.

Total number of IN endpoint (including ISOCHRONOUS).

#define NRF_USBD_EPISO_CHECK

(

ep

)

( NRF_USBD_EP_NR_GET (ep) >= NRF_USBD_EPISO_FIRST )

Macro for checking if endpoint is isochronous.

Parameters

ep	It can be endpoint identifier or just endpoint number to check

Return values

true	The endpoint is isochronous type
false	The endpoint is bulk of interrupt type

#define NRF_USBD_EPISO_FIRST   8

First isochronous endpoint number.

The number of the first isochronous endpoint

#define NRF_USBD_EPOUT

(

epnr

)

(((uint8_t)(epnr)) | NRF_USBD_EP_DIR_OUT )

Macro for making OUT endpoint identifier from endpoint number.

Macro that sets direction bit to make OUT endpoint

Parameters

[in]

epnr

Endpoint number

Returns

OUT Endpoint identifier

#define NRF_USBD_EPOUT_CHECK

(

ep

)

( (((uint8_t)(ep)) & NRF_USBD_EP_DIR_Msk ) == NRF_USBD_EP_DIR_OUT )

Macro for checking endpoint direction.

This macro checks if given endpoint has OUT direction

Parameters

ep	Endpoint identifier

Return values

true	If the endpoint direction is OUT
false	If the endpoint direction is IN

#define NRF_USBD_EPOUT_CNT   9

Total number of OUT endpoints.

Total number of OUT endpoint (including ISOCHRONOUS).

#define NRF_USBD_FRAMECNTR_SIZE   ( (USBD_FRAMECNTR_FRAMECNTR_Msk >> USBD_FRAMECNTR_FRAMECNTR_Pos) + 1UL )

Frame counter size.

The number of counts that can be fitted into frame counter

Enumeration Type Documentation

enum nrf_usbd_event_t

USBD events.

Enumerator
NRF_USBD_EVENT_USBRESET	Signals that a USB reset condition has been detected on the USB lines
NRF_USBD_EVENT_STARTED	Confirms that the EPIN[n].PTR, EPIN[n].MAXCNT, EPIN[n].CONFIG, or EPOUT[n].PTR, EPOUT[n].MAXCNT and EPOUT[n].CONFIG registers have been captured on all endpoints reported in the EPSTATUS register
NRF_USBD_EVENT_ENDEPIN0	The whole EPIN[0] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN1	The whole EPIN[1] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN2	The whole EPIN[2] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN3	The whole EPIN[3] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN4	The whole EPIN[4] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN5	The whole EPIN[5] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN6	The whole EPIN[6] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPIN7	The whole EPIN[7] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_EP0DATADONE	An acknowledged data transfer has taken place on the control endpoint
NRF_USBD_EVENT_ENDISOIN0	The whole ISOIN buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT0	The whole EPOUT[0] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT1	The whole EPOUT[1] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT2	The whole EPOUT[2] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT3	The whole EPOUT[3] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT4	The whole EPOUT[4] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT5	The whole EPOUT[5] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT6	The whole EPOUT[6] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDEPOUT7	The whole EPOUT[7] buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_ENDISOOUT0	The whole ISOOUT buffer has been consumed. The RAM buffer can be accessed safely by software.
NRF_USBD_EVENT_SOF	Signals that a SOF (start of frame) condition has been detected on the USB lines
NRF_USBD_EVENT_USBEVENT	An event or an error not covered by specific events has occurred, check EVENTCAUSE register to find the cause
NRF_USBD_EVENT_EP0SETUP	A valid SETUP token has been received (and acknowledged) on the control endpoint
NRF_USBD_EVENT_DATAEP	A data transfer has occurred on a data endpoint, indicated by the EPDATASTATUS register
NRF_USBD_EVENT_ACCESSFAULT	>Access to an unavailable USB register has been attempted (software or EasyDMA)

enum nrf_usbd_int_mask_t

USBD interrupts.

Enumerator
NRF_USBD_INT_USBRESET_MASK	Enable or disable interrupt for USBRESET event
NRF_USBD_INT_STARTED_MASK	Enable or disable interrupt for STARTED event
NRF_USBD_INT_ENDEPIN0_MASK	Enable or disable interrupt for ENDEPIN[0] event
NRF_USBD_INT_ENDEPIN1_MASK	Enable or disable interrupt for ENDEPIN[1] event
NRF_USBD_INT_ENDEPIN2_MASK	Enable or disable interrupt for ENDEPIN[2] event
NRF_USBD_INT_ENDEPIN3_MASK	Enable or disable interrupt for ENDEPIN[3] event
NRF_USBD_INT_ENDEPIN4_MASK	Enable or disable interrupt for ENDEPIN[4] event
NRF_USBD_INT_ENDEPIN5_MASK	Enable or disable interrupt for ENDEPIN[5] event
NRF_USBD_INT_ENDEPIN6_MASK	Enable or disable interrupt for ENDEPIN[6] event
NRF_USBD_INT_ENDEPIN7_MASK	Enable or disable interrupt for ENDEPIN[7] event
NRF_USBD_INT_EP0DATADONE_MASK	Enable or disable interrupt for EP0DATADONE event
NRF_USBD_INT_ENDISOIN0_MASK	Enable or disable interrupt for ENDISOIN[0] event
NRF_USBD_INT_ENDEPOUT0_MASK	Enable or disable interrupt for ENDEPOUT[0] event
NRF_USBD_INT_ENDEPOUT1_MASK	Enable or disable interrupt for ENDEPOUT[1] event
NRF_USBD_INT_ENDEPOUT2_MASK	Enable or disable interrupt for ENDEPOUT[2] event
NRF_USBD_INT_ENDEPOUT3_MASK	Enable or disable interrupt for ENDEPOUT[3] event
NRF_USBD_INT_ENDEPOUT4_MASK	Enable or disable interrupt for ENDEPOUT[4] event
NRF_USBD_INT_ENDEPOUT5_MASK	Enable or disable interrupt for ENDEPOUT[5] event
NRF_USBD_INT_ENDEPOUT6_MASK	Enable or disable interrupt for ENDEPOUT[6] event
NRF_USBD_INT_ENDEPOUT7_MASK	Enable or disable interrupt for ENDEPOUT[7] event
NRF_USBD_INT_ENDISOOUT0_MASK	Enable or disable interrupt for ENDISOOUT[0] event
NRF_USBD_INT_SOF_MASK	Enable or disable interrupt for SOF event
NRF_USBD_INT_USBEVENT_MASK	Enable or disable interrupt for USBEVENT event
NRF_USBD_INT_EP0SETUP_MASK	Enable or disable interrupt for EP0SETUP event
NRF_USBD_INT_DATAEP_MASK	Enable or disable interrupt for EPDATA event
NRF_USBD_INT_ACCESSFAULT_MASK	Enable or disable interrupt for ACCESSFAULT event

enum nrf_usbd_short_mask_t

USBD shorts.

Enumerator
NRF_USBD_SHORT_EP0DATADONE_STARTEPIN0_MASK	Shortcut between EP0DATADONE event and STARTEPIN0 task
NRF_USBD_SHORT_EP0DATADONE_STARTEPOUT0_MASK	Shortcut between EP0DATADONE event and STARTEPOUT0 task
NRF_USBD_SHORT_EP0DATADONE_EP0STATUS_MASK	Shortcut between EP0DATADONE event and EP0STATUS task
NRF_USBD_SHORT_ENDEPOUT0_EP0STATUS_MASK	Shortcut between ENDEPOUT[0] event and EP0STATUS task
NRF_USBD_SHORT_ENDEPOUT0_EP0RCVOUT_MASK	Shortcut between ENDEPOUT[0] event and EP0RCVOUT task

enum nrf_usbd_task_t

USBD tasks.

Enumerator
NRF_USBD_TASK_STARTEPIN0	Captures the EPIN[0].PTR, EPIN[0].MAXCNT and EPIN[0].CONFIG registers values, and enables control endpoint IN 0 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN1	Captures the EPIN[1].PTR, EPIN[1].MAXCNT and EPIN[1].CONFIG registers values, and enables data endpoint IN 1 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN2	Captures the EPIN[2].PTR, EPIN[2].MAXCNT and EPIN[2].CONFIG registers values, and enables data endpoint IN 2 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN3	Captures the EPIN[3].PTR, EPIN[3].MAXCNT and EPIN[3].CONFIG registers values, and enables data endpoint IN 3 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN4	Captures the EPIN[4].PTR, EPIN[4].MAXCNT and EPIN[4].CONFIG registers values, and enables data endpoint IN 4 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN5	Captures the EPIN[5].PTR, EPIN[5].MAXCNT and EPIN[5].CONFIG registers values, and enables data endpoint IN 5 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN6	Captures the EPIN[6].PTR, EPIN[6].MAXCNT and EPIN[6].CONFIG registers values, and enables data endpoint IN 6 to respond to traffic from host
NRF_USBD_TASK_STARTEPIN7	Captures the EPIN[7].PTR, EPIN[7].MAXCNT and EPIN[7].CONFIG registers values, and enables data endpoint IN 7 to respond to traffic from host
NRF_USBD_TASK_STARTISOIN	Captures the ISOIN.PTR, ISOIN.MAXCNT and ISOIN.CONFIG registers values, and enables sending data on iso endpoint 8
NRF_USBD_TASK_STARTEPOUT0	Captures the EPOUT[0].PTR, EPOUT[0].MAXCNT and EPOUT[0].CONFIG registers values, and enables control endpoint 0 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT1	Captures the EPOUT[1].PTR, EPOUT[1].MAXCNT and EPOUT[1].CONFIG registers values, and enables data endpoint 1 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT2	Captures the EPOUT[2].PTR, EPOUT[2].MAXCNT and EPOUT[2].CONFIG registers values, and enables data endpoint 2 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT3	Captures the EPOUT[3].PTR, EPOUT[3].MAXCNT and EPOUT[3].CONFIG registers values, and enables data endpoint 3 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT4	Captures the EPOUT[4].PTR, EPOUT[4].MAXCNT and EPOUT[4].CONFIG registers values, and enables data endpoint 4 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT5	Captures the EPOUT[5].PTR, EPOUT[5].MAXCNT and EPOUT[5].CONFIG registers values, and enables data endpoint 5 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT6	Captures the EPOUT[6].PTR, EPOUT[6].MAXCNT and EPOUT[6].CONFIG registers values, and enables data endpoint 6 to respond to traffic from host
NRF_USBD_TASK_STARTEPOUT7	Captures the EPOUT[7].PTR, EPOUT[7].MAXCNT and EPOUT[7].CONFIG registers values, and enables data endpoint 7 to respond to traffic from host
NRF_USBD_TASK_STARTISOOUT	Captures the ISOOUT.PTR, ISOOUT.MAXCNT and ISOOUT.CONFIG registers values, and enables receiving of data on iso endpoint 8
NRF_USBD_TASK_EP0RCVOUT	Allows OUT data stage on control endpoint 0
NRF_USBD_TASK_EP0STATUS	Allows status stage on control endpoint 0
NRF_USBD_TASK_EP0STALL	STALLs data and status stage on control endpoint 0
NRF_USBD_TASK_DRIVEDPDM	Forces D+ and D-lines to the state defined in the DPDMVALUE register
NRF_USBD_TASK_NODRIVEDPDM	Stops forcing D+ and D- lines to any state (USB engine takes control)

Function Documentation

__STATIC_INLINE nrf_usbd_busstate_t nrf_usbd_busstate_get

(

void

)

Function for getting BUSSTATE register value.

Returns

The value of BUSSTATE register

__STATIC_INLINE bool nrf_usbd_ep_is_stall

(

uint8_t

ep

)

Function for checking if selected endpoint is stalled.

Function to be used as a syntax sweeter for nrf_usbd_haltedep .

Also as the isochronous endpoint cannot be halted - it returns always false if isochronous endpoint is checked.

Parameters

ep	Endpoint number with IN/OUT flag

Returns

The information if the enepoint is halted.

__STATIC_INLINE void nrf_usbd_epdatastatus_clear

(

uint32_t

flags

)

Function for clearing DATAEPSTATUS register value.

Parameters

flags

Flags defined in nrf_usbd_dataepstatus_mask_t

__STATIC_INLINE uint32_t nrf_usbd_epdatastatus_get

(

void

)

Function for getting DATAEPSTATUS register value.

Returns

Flag values defined in nrf_usbd_dataepstatus_mask_t

__STATIC_INLINE uint32_t nrf_usbd_epdatastatus_get_and_clear

(

void

)

Function for getting and clearing DATAEPSTATUS register value.

Function clears all flags in register set before returning its value.

Returns

Flag values defined in nrf_usbd_dataepstatus_mask_t

__STATIC_INLINE void nrf_usbd_epstatus_clear

(

uint32_t

flags

)

Function for clearing EPSTATUS register value.

Parameters

flags

Flags defined in nrf_usbd_epstatus_mask_t

__STATIC_INLINE uint32_t nrf_usbd_epstatus_get

(

void

)

Function for getting EPSTATUS register value.

Returns

Flag values defined in nrf_usbd_epstatus_mask_t

__STATIC_INLINE uint32_t nrf_usbd_epstatus_get_and_clear

(

void

)

Function for getting and clearing EPSTATUS register value.

Function clears all flags in register set before returning its value.

Returns

Flag values defined in nrf_usbd_epstatus_mask_t

__STATIC_INLINE uint32_t nrf_usbd_event_address_get

(

nrf_usbd_event_t

event

)

Function for returning the address of a specific USBD event register.

Parameters

event

Event.

Returns

Address.

__STATIC_INLINE bool nrf_usbd_event_check

(

nrf_usbd_event_t

event

)

Function for returning the state of a specific event.

Parameters

event

Event.

Return values

true	If the event is set.
false	If the event is not set.

__STATIC_INLINE void nrf_usbd_event_clear

(

nrf_usbd_event_t

event

)

Function for clearing a specific event.

Parameters

event

Event.

__STATIC_INLINE bool nrf_usbd_event_get_and_clear

(

nrf_usbd_event_t

event

)

Function for getting and clearing the state of specific event.

This function checks the state of the event and clears it.

Parameters

event

Event.

Return values

true	If the event was set.
false	If the event was not set.

__STATIC_INLINE void nrf_usbd_eventcause_clear

(

uint32_t

flags

)

Function for clearing EVENTCAUSE flags.

Parameters

flags

Flags defined in nrf_usbd_eventcause_mask_t

__STATIC_INLINE uint32_t nrf_usbd_eventcause_get

(

void

)

Function for getting EVENTCAUSE register.

Returns

Flag values defined in nrf_usbd_eventcause_mask_t

__STATIC_INLINE uint32_t nrf_usbd_eventcause_get_and_clear

(

void

)

Function for getting EVENTCAUSE register and clear flags that are set.

The safest way to return current EVENTCAUSE register. All the flags that are returned would be cleared inside EVENTCAUSE register.

Returns

Flag values defined in nrf_usbd_eventcause_mask_t

__STATIC_INLINE uint32_t nrf_usbd_haltedep

(

uint8_t

ep

)

Function for getting HALTEDEPIN register value.

Parameters

ep	Endpoint number with IN/OUT flag

Returns

The value of HALTEDEPIN or HALTEDOUT register for selected endpoint

Note

Use this function for the response for GetStatus() request to endpoint. To check if endpoint is stalled in the code use nrf_usbd_ep_is_stall .

__STATIC_INLINE void nrf_usbd_int_disable

(

uint32_t

int_mask

)

Function for disabling selected interrupts.

Parameters

int_mask

Interrupts mask.

__STATIC_INLINE void nrf_usbd_int_enable

(

uint32_t

int_mask

)

Function for enabling selected interrupts.

Parameters

int_mask

Interrupts mask.

__STATIC_INLINE bool nrf_usbd_int_enable_check

(

uint32_t

int_mask

)

Function for retrieving the state of selected interrupts.

Parameters

int_mask

Interrupts mask.

Return values

true	If any of selected interrupts is enabled.
false	If none of selected interrupts is enabled.

__STATIC_INLINE uint32_t nrf_usbd_int_enable_get

(

void

)

Function for retrieving the information about enabled interrupts.

Returns

The flags of enabled interrupts.

__STATIC_INLINE void nrf_usbd_shorts_disable

(

uint32_t

short_mask

)

Function for clearing shortcuts.

Parameters

short_mask

Shortcuts mask.

__STATIC_INLINE void nrf_usbd_shorts_enable

(

uint32_t

short_mask

)

Function for setting a shortcut.

Parameters

short_mask

Shortcuts mask.

__STATIC_INLINE uint32_t nrf_usbd_shorts_get

(

void

)

Get the shorts mask.

Function returns shorts register.

Returns

Flags of currently enabled shortcuts

__STATIC_INLINE uint32_t nrf_usbd_task_address_get

(

nrf_usbd_task_t

task

)

Function for returning the address of a specific USBD task register.

Parameters

task

Task.

Returns

Task address.

__STATIC_INLINE void nrf_usbd_task_trigger

(

nrf_usbd_task_t

task

)

Function for activating a specific USBD task.

Parameters

task

Task.