Configuration macros for endpoints
[USB low level drivers]

Módulos
	USB device controller drivers
	USB endpoint drivers
Definiciones
#define	Usb_build_ep_config0(type, dir, nyet)   ((type<<6) | (nyet<<1) | (dir))
#define	Usb_build_ep_config1(size, bank)   ((size<<4) | (bank<<2) )
#define	usb_configure_endpoint(num, type, dir, size, bank, nyet)
#define	Usb_enable_regulator()   (UHWCON |= (1<<UVREGE))
#define	Usb_disable_uid_pin()   (UHWCON &= ~(1<<UIDE))
#define	Usb_force_device_mode()   (Usb_disable_uid_pin(), UHWCON |= (1<<UIMOD))
#define	Usb_enable()   (USBCON |= ((1<<USBE) | (1<<OTGPADE)))
#define	Usb_disable()   (USBCON &= ~((1<<USBE) | (1<<OTGPADE)))
#define	Usb_select_device()   (USBCON &= ~(1<<HOST))
#define	Usb_freeze_clock()   (USBCON |= (1<<FRZCLK))
#define	Usb_unfreeze_clock()   (USBCON &= ~(1<<FRZCLK))
#define	Is_usb_id_device()   ((USBSTA & (1<<ID)) ? TRUE : FALSE)
#define	Is_usb_vbus_high()   ((USBSTA & (1<<VBUS)) ? TRUE : FALSE)
#define	Is_usb_vbus_low()   ((USBSTA & (1<<VBUS)) ? FALSE : TRUE)
#define	Usb_write_word_enum_struc(x)   (wSWAP(x))

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Descripción detallada

List of the standard macro used to configure pipes and endpoints

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Documentación de las definiciones

 

#define Is_usb_id_device

(

)

((USBSTA & (1<<ID)) ? TRUE : FALSE)

 

#define Is_usb_vbus_high

(

)

((USBSTA & (1<<VBUS)) ? TRUE : FALSE)

 

#define Is_usb_vbus_low

(

)

((USBSTA & (1<<VBUS)) ? FALSE : TRUE)

#define Usb_build_ep_config0	(	type,
		dir,
		nyet		)	((type<<6) | (nyet<<1) | (dir))

#define Usb_build_ep_config1	(	size,
		bank		)	((size<<4) | (bank<<2) )

#define usb_configure_endpoint	(	num,
		type,
		dir,
		size,
		bank,
		nyet		)

Valor:

( Usb_select_endpoint(num),              \
                                      usb_config_ep(Usb_build_ep_config0(type, dir, nyet),\
                                                    Usb_build_ep_config1(size, bank)    ))

 

#define Usb_disable

(

)

(USBCON &= ~((1<<USBE) | (1<<OTGPADE)))

Disable both USB interface and Vbus pad.

 

#define Usb_disable_uid_pin

(

)

(UHWCON &= ~(1<<UIDE))

Disable external UID pin.

 

#define Usb_enable

(

)

(USBCON |= ((1<<USBE) | (1<<OTGPADE)))

Enable both USB interface and Vbus pad.

 

#define Usb_enable_regulator

(

)

(UHWCON |= (1<<UVREGE))

Enable internal USB pads regulator.

 

#define Usb_force_device_mode

(

)

(Usb_disable_uid_pin(), UHWCON |= (1<<UIMOD))

Disable external UID pin and force device mode.

 

#define Usb_freeze_clock

(

)

(USBCON |= (1<<FRZCLK))

Stop internal USB clock in interface (freeze the interface register).

 

#define Usb_select_device

(

)

(USBCON &= ~(1<<HOST))

 

#define Usb_unfreeze_clock

(

)

(USBCON &= ~(1<<FRZCLK))

#define Usb_write_word_enum_struc

(

x

)

(wSWAP(x))

Usb_write_word_enum_struc This macro help to fill the U16 fill in USB enumeration struct. Depending on the CPU architecture, the macro swap or not the nibbles

Parámetros:

x

(U16) the 16 bit word to be written

Devuelve:

(U16) the 16 bit word written