Detailed Description

General Purpose Input/Output (GPIO) API.

This module contains functions to control the GPIO peripheral of Silicon Labs 32-bit MCUs and SoCs. The GPIO peripheral is used for pin configuration and direct pin manipulation and sensing as well as routing for peripheral pin connections.

Enumerations
enum	GPIO_DriveMode_TypeDef { gpioDriveModeStandard = GPIO_P_CTRL_DRIVEMODE_STANDARD, gpioDriveModeLowest = GPIO_P_CTRL_DRIVEMODE_LOWEST, gpioDriveModeHigh = GPIO_P_CTRL_DRIVEMODE_HIGH, gpioDriveModeLow = GPIO_P_CTRL_DRIVEMODE_LOW }

enum	GPIO_Mode_TypeDef { gpioModeDisabled = _GPIO_P_MODEL_MODE0_DISABLED, gpioModeInput = _GPIO_P_MODEL_MODE0_INPUT, gpioModeInputPull = _GPIO_P_MODEL_MODE0_INPUTPULL, gpioModeInputPullFilter = _GPIO_P_MODEL_MODE0_INPUTPULLFILTER, gpioModePushPull = _GPIO_P_MODEL_MODE0_PUSHPULL, gpioModePushPullDrive = _GPIO_P_MODEL_MODE0_PUSHPULLDRIVE, gpioModeWiredOr = _GPIO_P_MODEL_MODE0_WIREDOR, gpioModeWiredOrPullDown = _GPIO_P_MODEL_MODE0_WIREDORPULLDOWN, gpioModeWiredAnd = _GPIO_P_MODEL_MODE0_WIREDAND, gpioModeWiredAndFilter = _GPIO_P_MODEL_MODE0_WIREDANDFILTER, gpioModeWiredAndPullUp = _GPIO_P_MODEL_MODE0_WIREDANDPULLUP, gpioModeWiredAndPullUpFilter = _GPIO_P_MODEL_MODE0_WIREDANDPULLUPFILTER, gpioModeWiredAndDrive = _GPIO_P_MODEL_MODE0_WIREDANDDRIVE, gpioModeWiredAndDriveFilter = _GPIO_P_MODEL_MODE0_WIREDANDDRIVEFILTER, gpioModeWiredAndDrivePullUp = _GPIO_P_MODEL_MODE0_WIREDANDDRIVEPULLUP, gpioModeWiredAndDrivePullUpFilter = _GPIO_P_MODEL_MODE0_WIREDANDDRIVEPULLUPFILTER }

enum	GPIO_Port_TypeDef

Functions
void	GPIO_DbgLocationSet (unsigned int location)
	Sets the pin location of the debug pins (Serial Wire interface). More...

__STATIC_INLINE void	GPIO_DbgSWDClkEnable (bool enable)
	Enable/disable serial wire clock pin. More...

__STATIC_INLINE void	GPIO_DbgSWDIOEnable (bool enable)
	Enable/disable serial wire data I/O pin. More...

void	GPIO_DriveModeSet (GPIO_Port_TypeDef port, GPIO_DriveMode_TypeDef mode)
	Sets the drive mode for a GPIO port. More...

__STATIC_INLINE void	GPIO_EM4DisablePinWakeup (uint32_t pinmask)
	Disable GPIO pin wake-up from EM4. More...

void	GPIO_EM4EnablePinWakeup (uint32_t pinmask, uint32_t polaritymask)
	Enable GPIO pin wake-up from EM4. When the function exits, EM4 mode can be safely entered. More...

__STATIC_INLINE uint32_t	GPIO_EM4GetPinWakeupCause (void)
	Check which GPIO pin(s) that caused a wake-up from EM4. More...

__STATIC_INLINE void	GPIO_EM4SetPinRetention (bool enable)
	Enable GPIO pin retention of output enable, output value, pull enable and pull direction in EM4. More...

void	GPIO_ExtIntConfig (GPIO_Port_TypeDef port, unsigned int pin, unsigned int intNo, bool risingEdge, bool fallingEdge, bool enable)
	Configure GPIO external pin interrupt. More...

__STATIC_INLINE void	GPIO_InputSenseSet (uint32_t val, uint32_t mask)
	Enable/disable input sensing. More...

__STATIC_INLINE void	GPIO_IntClear (uint32_t flags)
	Clear one or more pending GPIO interrupts. More...

__STATIC_INLINE void	GPIO_IntConfig (GPIO_Port_TypeDef port, unsigned int pin, bool risingEdge, bool fallingEdge, bool enable)
	Configure GPIO interrupt. More...

__STATIC_INLINE void	GPIO_IntDisable (uint32_t flags)
	Disable one or more GPIO interrupts. More...

__STATIC_INLINE void	GPIO_IntEnable (uint32_t flags)
	Enable one or more GPIO interrupts. More...

__STATIC_INLINE uint32_t	GPIO_IntGet (void)
	Get pending GPIO interrupts. More...

__STATIC_INLINE uint32_t	GPIO_IntGetEnabled (void)
	Get enabled and pending GPIO interrupt flags. Useful for handling more interrupt sources in the same interrupt handler. More...

__STATIC_INLINE void	GPIO_IntSet (uint32_t flags)
	Set one or more pending GPIO interrupts from SW. More...

__STATIC_INLINE void	GPIO_Lock (void)
	Locks the GPIO configuration.

__STATIC_INLINE unsigned int	GPIO_PinInGet (GPIO_Port_TypeDef port, unsigned int pin)
	Read the pad value for a single pin in a GPIO port. More...

GPIO_Mode_TypeDef	GPIO_PinModeGet (GPIO_Port_TypeDef port, unsigned int pin)
	Get the mode for a GPIO pin. More...

void	GPIO_PinModeSet (GPIO_Port_TypeDef port, unsigned int pin, GPIO_Mode_TypeDef mode, unsigned int out)
	Set the mode for a GPIO pin. More...

__STATIC_INLINE void	GPIO_PinOutClear (GPIO_Port_TypeDef port, unsigned int pin)
	Set a single pin in GPIO data out port register to 0. More...

__STATIC_INLINE unsigned int	GPIO_PinOutGet (GPIO_Port_TypeDef port, unsigned int pin)
	Get current setting for a pin in a GPIO port data out register. More...

__STATIC_INLINE void	GPIO_PinOutSet (GPIO_Port_TypeDef port, unsigned int pin)
	Set a single pin in GPIO data out register to 1. More...

__STATIC_INLINE void	GPIO_PinOutToggle (GPIO_Port_TypeDef port, unsigned int pin)
	Toggle a single pin in GPIO port data out register. More...

__STATIC_INLINE uint32_t	GPIO_PortInGet (GPIO_Port_TypeDef port)
	Read the pad values for GPIO port. More...

__STATIC_INLINE void	GPIO_PortOutClear (GPIO_Port_TypeDef port, uint32_t pins)
	Set bits in DOUT register for a port to 0. More...

__STATIC_INLINE uint32_t	GPIO_PortOutGet (GPIO_Port_TypeDef port)
	Get current setting for a GPIO port data out register. More...

__STATIC_INLINE void	GPIO_PortOutSet (GPIO_Port_TypeDef port, uint32_t pins)
	Set bits GPIO data out register to 1. More...

__STATIC_INLINE void	GPIO_PortOutSetVal (GPIO_Port_TypeDef port, uint32_t val, uint32_t mask)
	Set GPIO port data out register. More...

__STATIC_INLINE void	GPIO_PortOutToggle (GPIO_Port_TypeDef port, uint32_t pins)
	Toggle pins in GPIO port data out register. More...

__STATIC_INLINE void	GPIO_Unlock (void)
	Unlocks the GPIO configuration.

Enumeration Type Documentation

enum GPIO_DriveMode_TypeDef

GPIO drive mode.

Enumerator
gpioDriveModeStandard	Default 6mA
gpioDriveModeLowest	0.5 mA
gpioDriveModeHigh	20 mA
gpioDriveModeLow	2 mA

Definition at line 384 of file em_gpio.h.

enum GPIO_Mode_TypeDef

Pin mode. For more details on each mode, please refer to the reference manual.

Enumerator
gpioModeDisabled	Input disabled. Pullup if DOUT is set.
gpioModeInput	Input enabled. Filter if DOUT is set
gpioModeInputPull	Input enabled. DOUT determines pull direction
gpioModeInputPullFilter	Input enabled with filter. DOUT determines pull direction
gpioModePushPull	Push-pull output
gpioModePushPullDrive	Push-pull output with drive-strength set by DRIVEMODE
gpioModeWiredOr	Wired-or output
gpioModeWiredOrPullDown	Wired-or output with pull-down
gpioModeWiredAnd	Open-drain output
gpioModeWiredAndFilter	Open-drain output with filter
gpioModeWiredAndPullUp	Open-drain output with pullup
gpioModeWiredAndPullUpFilter	Open-drain output with filter and pullup
gpioModeWiredAndDrive	Open-drain output with drive-strength set by DRIVEMODE
gpioModeWiredAndDriveFilter	Open-drain output with filter and drive-strength set by DRIVEMODE
gpioModeWiredAndDrivePullUp	Open-drain output with pullup and drive-strength set by DRIVEMODE
gpioModeWiredAndDrivePullUpFilter	Open-drain output with filter, pullup and drive-strength set by DRIVEMODE

Definition at line 421 of file em_gpio.h.

enum GPIO_Port_TypeDef

GPIO ports ids.

Definition at line 345 of file em_gpio.h.

Function Documentation

void GPIO_DbgLocationSet ( unsigned int location )

Sets the pin location of the debug pins (Serial Wire interface).

Note: Changing the pins used for debugging uncontrolled, may result in a lockout.

Parameters

[in] location The debug pin location to use (0-3).

Definition at line 83 of file em_gpio.c.

References GPIO.

__STATIC_INLINE void GPIO_DbgSWDClkEnable ( bool enable )

Enable/disable serial wire clock pin.

Note: Disabling SWDClk will disable the debug interface, which may result in a lockout if done early in startup (before debugger is able to halt core).

Parameters

[in]

enable

false - disable serial wire clock.
true - enable serial wire clock (default after reset).

Definition at line 493 of file em_gpio.h.

References _GPIO_ROUTE_SWCLKPEN_SHIFT, BUS_RegBitWrite(), and GPIO.

__STATIC_INLINE void GPIO_DbgSWDIOEnable ( bool enable )

Enable/disable serial wire data I/O pin.

Note: Disabling SWDClk will disable the debug interface, which may result in a lockout if done early in startup (before debugger is able to halt core).

Parameters

[in]

enable

false - disable serial wire data pin.
true - enable serial wire data pin (default after reset).

Definition at line 516 of file em_gpio.h.

References _GPIO_ROUTE_SWDIOPEN_SHIFT, BUS_RegBitWrite(), and GPIO.

void GPIO_DriveModeSet	(	GPIO_Port_TypeDef	port,
		GPIO_DriveMode_TypeDef	mode
	)

Sets the drive mode for a GPIO port.

Parameters

[in]	port	The GPIO port to access.
[in]	mode	Drive mode to use for port.

Definition at line 106 of file em_gpio.c.

References _GPIO_P_CTRL_DRIVEMODE_MASK, _GPIO_P_CTRL_DRIVEMODE_SHIFT, and GPIO.

Referenced by CAPLESENSE_setupGPIO().

__STATIC_INLINE void GPIO_EM4DisablePinWakeup ( uint32_t pinmask )

Disable GPIO pin wake-up from EM4.

Parameters

[in] pinmask Bitmask containing the bitwise logic OR of which GPIO pin(s) to disable. Refer to Reference Manuals for pinmask to GPIO port/pin mapping.

Definition at line 570 of file em_gpio.h.

References _GPIO_EM4WUEN_MASK, and GPIO.

void GPIO_EM4EnablePinWakeup	(	uint32_t	pinmask,
		uint32_t	polaritymask
	)

Enable GPIO pin wake-up from EM4. When the function exits, EM4 mode can be safely entered.

Note: It is assumed that the GPIO pin modes are set correctly. Valid modes are gpioModeInput and gpioModeInputPull.

Parameters

[in]	pinmask	Bitmask containing the bitwise logic OR of which GPIO pin(s) to enable. Refer to Reference Manuals for pinmask to GPIO port/pin mapping.
[in]	polaritymask	Bitmask containing the bitwise logic OR of GPIO pin(s) wake-up polarity. Refer to Reference Manuals for pinmask to GPIO port/pin mapping.

Definition at line 361 of file em_gpio.c.

References _GPIO_EM4WUEN_MASK, _GPIO_EM4WUPOL_MASK, GPIO, GPIO_CMD_EM4WUCLR, GPIO_EM4SetPinRetention(), and GPIO_IntClear().

Referenced by UTIL_shutdown().

__STATIC_INLINE uint32_t GPIO_EM4GetPinWakeupCause ( void )

Check which GPIO pin(s) that caused a wake-up from EM4.

Returns: Bitmask containing the bitwise logic OR of which GPIO pin(s) caused the wake-up. Refer to Reference Manuals for pinmask to GPIO port/pin mapping.

Definition at line 591 of file em_gpio.h.

References _GPIO_EM4WUCAUSE_MASK, and GPIO.

__STATIC_INLINE void GPIO_EM4SetPinRetention ( bool enable )

Enable GPIO pin retention of output enable, output value, pull enable and pull direction in EM4.

Note: For platform 2 parts, EMU_EM4Init() and EMU_UnlatchPinRetention() offers more pin retention features. This function implements the EM4EXIT retention mode on platform 2.

Parameters

[in]

enable

true - enable EM4 pin retention.
false - disable EM4 pin retention.

Definition at line 616 of file em_gpio.h.

References EMU, GPIO, and GPIO_CTRL_EM4RET.

Referenced by GPIO_EM4EnablePinWakeup().

void GPIO_ExtIntConfig	(	GPIO_Port_TypeDef	port,
		unsigned int	pin,
		unsigned int	intNo,
		bool	risingEdge,
		bool	fallingEdge,
		bool	enable
	)

Configure GPIO external pin interrupt.

If reconfiguring a GPIO interrupt that is already enabled, it is generally recommended to disable it first, see GPIO_Disable().

The actual GPIO interrupt handler must be in place before enabling the interrupt.

Notice that any pending interrupt for the selected interrupt is cleared by this function.

Note: On series 0 devices the pin number parameter is not used. The pin number used on these devices is hardwired to the interrupt with the same number.
On series 1 devices, pin number can be selected freely within a group. Interrupt numbers are divided into 4 groups (intNo / 4) and valid pin number within the interrupt groups are: 0: pins 0-3 1: pins 4-7 2: pins 8-11 3: pins 12-15

Parameters

[in]	port	The port to associate with `pin`.
[in]	pin	The pin number on the port.
[in]	intNo	The interrupt number to trigger.
[in]	risingEdge	Set to true if interrupts shall be enabled on rising edge, otherwise false.
[in]	fallingEdge	Set to true if interrupts shall be enabled on falling edge, otherwise false.
[in]	enable	Set to true if interrupt shall be enabled after configuration completed, false to leave disabled. See GPIO_IntDisable() and GPIO_IntEnable().

Definition at line 181 of file em_gpio.c.

References _GPIO_EXTIPSELH_EXTIPSEL8_MASK, _GPIO_EXTIPSELH_EXTIPSEL9_SHIFT, _GPIO_EXTIPSELL_EXTIPSEL0_MASK, _GPIO_EXTIPSELL_EXTIPSEL1_SHIFT, BUS_RegBitWrite(), BUS_RegMaskedWrite(), and GPIO.

Referenced by GPIO_IntConfig().

__STATIC_INLINE void GPIO_InputSenseSet	(	uint32_t	val,
		uint32_t	mask
	)

Enable/disable input sensing.

Disabling input sensing if not used, can save some energy consumption.

Parameters

[in]	val	Bitwise logic OR of one or more of: GPIO_INSENSE_INT - interrupt input sensing. GPIO_INSENSE_PRS - peripheral reflex system input sensing.
[in]	mask	Mask containing bitwise logic OR of bits similar as for `val` used to indicate which input sense options to disable/enable.

Definition at line 662 of file em_gpio.h.

References GPIO.

Referenced by ezradio_hal_GpioInit().

__STATIC_INLINE void GPIO_IntClear ( uint32_t flags )

Clear one or more pending GPIO interrupts.

Parameters

[in] flags Bitwise logic OR of GPIO interrupt sources to clear.

Definition at line 674 of file em_gpio.h.

References GPIO.

Referenced by BOARD_picGetFwRevision(), GPIO_EM4EnablePinWakeup(), and GPIOINT_CallbackRegister().

__STATIC_INLINE void GPIO_IntConfig	(	GPIO_Port_TypeDef	port,
		unsigned int	pin,
		bool	risingEdge,
		bool	fallingEdge,
		bool	enable
	)

Configure GPIO interrupt.

If reconfiguring a GPIO interrupt that is already enabled, it is generally recommended to disable it first, see GPIO_Disable().

The actual GPIO interrupt handler must be in place before enabling the interrupt.

Notice that any pending interrupt for the selected pin is cleared by this function.

Deprecated:: Deprecated function. New code should use GPIO_ExtIntConfig().

Note: A certain pin number can only be associated with one port. Ie, if GPIO interrupt 1 is assigned to port A/pin 1, then it is not possible to use pin 1 from any other ports for interrupts. Please refer to the reference manual. On devices which implement GPIO_EXTIPINSEL registers a more flexible approach is possible, refer to GPIO_ExtIntConfig().

Parameters

[in]	port	The port to associate with `pin`.
[in]	pin	The pin number on the port ( == GPIO EXTI interrupt number).
[in]	risingEdge	Set to true if interrupts shall be enabled on rising edge, otherwise false.
[in]	fallingEdge	Set to true if interrupts shall be enabled on falling edge, otherwise false.
[in]	enable	Set to true if interrupt shall be enabled after configuration completed, false to leave disabled. See GPIO_IntDisable() and GPIO_IntEnable().

Definition at line 1104 of file em_gpio.h.

References GPIO_ExtIntConfig().

Referenced by BOARD_init(), BOARD_pushButtonEnableIRQ(), ezradio_hal_GpioInit(), SI7210_config(), and SI7210_deInit().

__STATIC_INLINE void GPIO_IntDisable ( uint32_t flags )

Disable one or more GPIO interrupts.

Parameters

[in] flags GPIO interrupt sources to disable.

Definition at line 686 of file em_gpio.h.

References GPIO.

Referenced by BOARD_picGetFwRevision().

__STATIC_INLINE void GPIO_IntEnable ( uint32_t flags )

Enable one or more GPIO interrupts.

Note: Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. Consider using GPIO_IntClear() prior to enabling if such a pending interrupt should be ignored.

Parameters

[in] flags GPIO interrupt sources to enable.

Definition at line 703 of file em_gpio.h.

References GPIO.

Referenced by BOARD_picGetFwRevision().

__STATIC_INLINE uint32_t GPIO_IntGet ( void )

Get pending GPIO interrupts.

Returns: GPIO interrupt sources pending.

Definition at line 715 of file em_gpio.h.

References GPIO.

__STATIC_INLINE uint32_t GPIO_IntGetEnabled ( void )

Get enabled and pending GPIO interrupt flags. Useful for handling more interrupt sources in the same interrupt handler.

Note: Interrupt flags are not cleared by the use of this function.

Returns

Pending and enabled GPIO interrupt sources. The return value is the bitwise AND combination of

the OR combination of enabled interrupt sources in GPIO_IEN register and
the OR combination of valid interrupt flags in GPIO_IF register.

Definition at line 735 of file em_gpio.h.

References GPIO.

Referenced by GPIOINT_CallbackRegister().

__STATIC_INLINE void GPIO_IntSet ( uint32_t flags )

Set one or more pending GPIO interrupts from SW.

Parameters

[in] flags GPIO interrupt sources to set to pending.

Definition at line 754 of file em_gpio.h.

References GPIO.

__STATIC_INLINE unsigned int GPIO_PinInGet	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Read the pad value for a single pin in a GPIO port.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin number to read.

Returns: The pin value, 0 or 1.

Definition at line 781 of file em_gpio.h.

References BUS_RegBitRead(), and GPIO.

Referenced by ADC0_IRQHandler(), BSP_McuBoard_UsbVbusOcFlagGet(), ezradio_hal_NirqLevel(), IMU_isDataReadyFlag(), and TOUCH_IsBusy().

GPIO_Mode_TypeDef GPIO_PinModeGet	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Get the mode for a GPIO pin.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin number in the port.

Returns: The pin mode.

Definition at line 329 of file em_gpio.c.

References GPIO.

void GPIO_PinModeSet	(	GPIO_Port_TypeDef	port,
		unsigned int	pin,
		GPIO_Mode_TypeDef	mode,
		unsigned int	out
	)

Set the mode for a GPIO pin.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin number in the port.
[in]	mode	The desired pin mode.
[in]	out	Value to set for pin in DOUT register. The DOUT setting is important for even some input mode configurations, determining pull-up/down direction.

Definition at line 269 of file em_gpio.c.

References GPIO, GPIO_PinOutClear(), GPIO_PinOutSet(), and gpioModeDisabled.

Referenced by ADC0_IRQHandler(), BOARD_flashDeepPowerDown(), BOARD_init(), BSP_BccPinsEnable(), BSP_BusControlModeSet(), BSP_EbiInit(), BSP_McuBoard_DeInit(), BSP_McuBoard_Init(), BSP_McuBoard_UsbVbusPowerEnable(), CAPLESENSE_setupGPIO(), ezradio_hal_GpioInit(), I2CSPM_Init(), ICM20648_spiInit(), KSZ8851SNL_SPI_Init(), MICROSD_Deinit(), MICROSD_Init(), MSDD_Init(), RETARGET_SerialInit(), setupI2C(), SI7210_deInit(), SI7210_init(), SPI_TFT_Init(), TFT_DirectGPIOConfig(), and UTIL_shutdown().

__STATIC_INLINE void GPIO_PinOutClear	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Set a single pin in GPIO data out port register to 0.

Note: In order for the setting to take effect on the output pad, the pin must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin to set.

Definition at line 811 of file em_gpio.h.

References BUS_RegBitWrite(), and GPIO.

Referenced by BOARD_flashDeepPowerDown(), BOARD_ledSet(), BOARD_picGetFwRevision(), BSP_McuBoard_UsbStatusLedEnable(), ezradio_hal_ClearNsel(), ezradio_hal_DeassertShutdown(), GPIO_PinModeSet(), I2CSPM_Init(), KSZ8851SNL_SPI_SetChipSelect(), and SPI_TFT_WriteRegister().

__STATIC_INLINE unsigned int GPIO_PinOutGet	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Get current setting for a pin in a GPIO port data out register.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin to get setting for.

Returns: The DOUT setting for the requested pin, 0 or 1.

Definition at line 834 of file em_gpio.h.

References BUS_RegBitRead(), and GPIO.

__STATIC_INLINE void GPIO_PinOutSet	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Set a single pin in GPIO data out register to 1.

Note: In order for the setting to take effect on the output pad, the pin must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin to set.

Definition at line 856 of file em_gpio.h.

References BUS_RegBitWrite(), and GPIO.

Referenced by BOARD_flashDeepPowerDown(), BOARD_ledSet(), BOARD_picGetFwRevision(), BSP_McuBoard_UsbStatusLedEnable(), ezradio_hal_AssertShutdown(), ezradio_hal_SetNsel(), GPIO_PinModeSet(), I2CSPM_Init(), KSZ8851SNL_SPI_SetChipSelect(), and SPI_TFT_WriteRegister().

__STATIC_INLINE void GPIO_PinOutToggle	(	GPIO_Port_TypeDef	port,
		unsigned int	pin
	)

Toggle a single pin in GPIO port data out register.

Note: In order for the setting to take effect on the output pad, the pin must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pin	The pin to toggle.

Definition at line 881 of file em_gpio.h.

References GPIO.

__STATIC_INLINE uint32_t GPIO_PortInGet ( GPIO_Port_TypeDef port )

Read the pad values for GPIO port.

Parameters

[in] port The GPIO port to access.

Definition at line 895 of file em_gpio.h.

References GPIO.

Referenced by BOARD_pushButtonGetState().

__STATIC_INLINE void GPIO_PortOutClear	(	GPIO_Port_TypeDef	port,
		uint32_t	pins
	)

Set bits in DOUT register for a port to 0.

Note: In order for the setting to take effect on the output pad, the pin must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pins	Bit mask for bits to clear in DOUT register.

Definition at line 917 of file em_gpio.h.

References BUS_RegMaskedClear(), and GPIO.

__STATIC_INLINE uint32_t GPIO_PortOutGet ( GPIO_Port_TypeDef port )

Get current setting for a GPIO port data out register.

Parameters

[in] port The GPIO port to access.

Returns: The data out setting for the requested port.

Definition at line 937 of file em_gpio.h.

References GPIO.

__STATIC_INLINE void GPIO_PortOutSet	(	GPIO_Port_TypeDef	port,
		uint32_t	pins
	)

Set bits GPIO data out register to 1.

Note: In order for the setting to take effect on the respective output pads, the pins must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pins	Bit mask for bits to set to 1 in DOUT register.

Definition at line 959 of file em_gpio.h.

References BUS_RegMaskedSet(), and GPIO.

__STATIC_INLINE void GPIO_PortOutSetVal	(	GPIO_Port_TypeDef	port,
		uint32_t	val,
		uint32_t	mask
	)

Set GPIO port data out register.

Note: In order for the setting to take effect on the respective output pads, the pins must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	val	Value to write to port data out register.
[in]	mask	Mask indicating which bits to modify.

Definition at line 987 of file em_gpio.h.

References GPIO.

__STATIC_INLINE void GPIO_PortOutToggle	(	GPIO_Port_TypeDef	port,
		uint32_t	pins
	)

Toggle pins in GPIO port data out register.

Note: In order for the setting to take effect on the output pad, the pin must have been configured properly. If not, it will take effect whenever the pin has been properly configured.

Parameters

[in]	port	The GPIO port to access.
[in]	pins	Bitmask with pins to toggle.

Definition at line 1011 of file em_gpio.h.

References GPIO.

Detailed Description

Enumerations

Functions

Enumeration Type Documentation

Function Documentation