SYSCON Registers

Collaboration diagram for SYSCON Registers:

Macros
#define	SYSCON_SWD_SEL   MMIO32(SYSTEM_CON_BASE + 0x30)
	SWD Enable register. More...
#define	SYSCON_PORTA_SEL   MMIO32(SYSTEM_CON_BASE + 0x80)
	Pin Alternate function selection register. More...
#define	SYSCON_PORTA_PULLUP   MMIO32(SYSTEM_CON_BASE + 0x90)
	Pin Pull up register. More...
#define	SYSCON_PORTA_INEN   MMIO32(SYSTEM_CON_BASE + 0xe0)
	Pin Input enable register. More...

Functions
void	syscon_sel_af (uint16_t gpios, bool af_en)
	Select the alternative function of a Group of Pins. More...
void	syscon_pullup (uint16_t gpios, bool en)
	Enable the internal pull-up of a Group of Pins. More...
void	syscon_input_enable (uint16_t gpios, bool en)
	Enable the input function of a Group of Pins. More...
void	syscon_sel_swd (bool en)
	Select the SWD function of GPIO 1/2. More...

Detailed Description

Macro Definition Documentation

SYSCON_PORTA_INEN

#define SYSCON_PORTA_INEN   MMIO32(SYSTEM_CON_BASE + 0xe0)

Pin Input enable register.

Definition at line 44 of file syscon.h.

SYSCON_PORTA_PULLUP

#define SYSCON_PORTA_PULLUP   MMIO32(SYSTEM_CON_BASE + 0x90)

Pin Pull up register.

Definition at line 42 of file syscon.h.

SYSCON_PORTA_SEL

#define SYSCON_PORTA_SEL   MMIO32(SYSTEM_CON_BASE + 0x80)

Pin Alternate function selection register.

Definition at line 40 of file syscon.h.

SYSCON_SWD_SEL

#define SYSCON_SWD_SEL   MMIO32(SYSTEM_CON_BASE + 0x30)

SWD Enable register.

Definition at line 38 of file syscon.h.

Function Documentation

syscon_input_enable()

void syscon_input_enable	(	uint16_t	gpios,
		bool	en
	)

Enable the input function of a Group of Pins.

Enable or disable the input function of one or more pins of GPIO. Disabling the input function of pins decreases the power usage of the MCU.

Parameters

[in]	gpios	Pin identifiers GPIO Pin Identifiers If multiple pins are to be changed, use bitwise OR '|' to separate them.
[in]	en	True to enable input function.

Definition at line 95 of file syscon.c.

References SYSCON_PORTA_INEN.

syscon_pullup()

void syscon_pullup	(	uint16_t	gpios,
		bool	en
	)

Enable the internal pull-up of a Group of Pins.

Enable or disable the internal pull-up of one or more pins of GPIO.

Parameters

[in]	gpios	Pin identifiers GPIO Pin Identifiers If multiple pins are to be changed, use bitwise OR '|' to separate them.
[in]	en	True to enable pull-up, false to disable.

Definition at line 75 of file syscon.c.

References SYSCON_PORTA_PULLUP.

syscon_sel_af()

void syscon_sel_af	(	uint16_t	gpios,
		bool	af_en
	)

Select the alternative function of a Group of Pins.

Select the alternative function of one or more pins of GPIO.

Parameters

[in]	gpios	Pin identifiers GPIO Pin Identifiers If multiple pins are to be changed, use bitwise OR '|' to separate them.
[in]	af_en	Whether alternative function is selected

Definition at line 43 of file syscon.c.

References GPIO0, GPIO1, GPIO2, GPIO7, and SYSCON_PORTA_SEL.

syscon_sel_swd()

void syscon_sel_swd

(

bool

en

)

Select the SWD function of GPIO 1/2.

Enable or disable the SWD debugging port at GPIO 1/2. When SWD debugging port is enabled, GPIO and AF of the SWD pins will be both unavailable.

Parameters

[in]

en

True to enable SWD.

Definition at line 112 of file syscon.c.

References SYSCON_SWD_SEL.