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.

Macros
#define	gpioDriveStrengthStrong gpioDriveStrengthStrongAlternateStrong

#define	gpioDriveStrengthWeak gpioDriveStrengthWeakAlternateWeak

Enumerations
enum	GPIO_DriveStrength_TypeDef { gpioDriveStrengthWeakAlternateWeak = GPIO_P_CTRL_DRIVESTRENGTH_WEAK \| GPIO_P_CTRL_DRIVESTRENGTHALT_WEAK, gpioDriveStrengthWeakAlternateStrong = GPIO_P_CTRL_DRIVESTRENGTH_WEAK \| GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG, gpioDriveStrengthStrongAlternateWeak = GPIO_P_CTRL_DRIVESTRENGTH_STRONG \| GPIO_P_CTRL_DRIVESTRENGTHALT_WEAK, gpioDriveStrengthStrongAlternateStrong = GPIO_P_CTRL_DRIVESTRENGTH_STRONG \| GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG }

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, gpioModePushPullAlternate = _GPIO_P_MODEL_MODE0_PUSHPULLALT, 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, gpioModeWiredAndAlternate = _GPIO_P_MODEL_MODE0_WIREDANDALT, gpioModeWiredAndAlternateFilter = _GPIO_P_MODEL_MODE0_WIREDANDALTFILTER, gpioModeWiredAndAlternatePullUp = _GPIO_P_MODEL_MODE0_WIREDANDALTPULLUP, gpioModeWiredAndAlternatePullUpFilter = _GPIO_P_MODEL_MODE0_WIREDANDALTPULLUPFILTER }

enum	GPIO_Port_TypeDef

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

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

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

__STATIC_INLINE void	GPIO_DbgSWOEnable (bool enable)
	Enable/Disable serial wire output pin.

void	GPIO_DriveStrengthSet ( GPIO_Port_TypeDef port, GPIO_DriveStrength_TypeDef strength)
	Sets the drive strength for a GPIO port.

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

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.

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

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

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

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

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

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

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

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

__STATIC_INLINE uint32_t	GPIO_IntGet (void)
	Get pending GPIO interrupts.

__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.

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

__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.

__STATIC_INLINE void	GPIO_PinLock ( GPIO_Port_TypeDef port, unsigned int pin)
	Lock all GPIO configuration settings for a given pin. The lock can only be cleared by a chip reset.

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

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

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

__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.

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

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

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

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

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

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

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

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

__STATIC_INLINE void	GPIO_SlewrateSet ( GPIO_Port_TypeDef port, uint32_t slewrate, uint32_t slewrateAlt)
	Set slewrate for pins on a GPIO port.

__STATIC_INLINE void	GPIO_Unlock (void)
	Unlocks the GPIO configuration.

Enumeration Type Documentation

enum GPIO_DriveStrength_TypeDef

GPIO drive strength.

Enumerator
gpioDriveStrengthWeakAlternateWeak	GPIO weak 1mA and alternate function weak 1mA.
gpioDriveStrengthWeakAlternateStrong	GPIO weak 1mA and alternate function strong 10mA.
gpioDriveStrengthStrongAlternateWeak	GPIO strong 10mA and alternate function weak 1mA.
gpioDriveStrengthStrongAlternateStrong	GPIO strong 10mA and alternate function strong 10mA.

Definition at line 532 of file em_gpio.h .

enum GPIO_Mode_TypeDef

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

Enumerator
gpioModeDisabled	Input disabled. Pull-up 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.
gpioModePushPullAlternate	Push-pull using alternate control.
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 pull-up.
gpioModeWiredAndPullUpFilter	Open-drain output with filter and pull-up.
gpioModeWiredAndAlternate	Open-drain output using alternate control.
gpioModeWiredAndAlternateFilter	Open-drain output using alternate control with filter.
gpioModeWiredAndAlternatePullUp	Open-drain output using alternate control with pull-up.
gpioModeWiredAndAlternatePullUpFilter	Open-drain output using alternate control with filter and pull-up.

Definition at line 553 of file em_gpio.h .

enum GPIO_Port_TypeDef

GPIO ports IDs.

Definition at line 480 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 80 of file em_gpio.c .

References _GPIO_ROUTELOC0_SWVLOC_MASK , _GPIO_ROUTELOC0_SWVLOC_SHIFT , AFCHANLOC_MAX , and GPIO .

Referenced by DBG_SWOEnable() .

__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 624 of file em_gpio.h .

References _GPIO_ROUTEPEN_SWCLKTCKPEN_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 649 of file em_gpio.h .

References _GPIO_ROUTEPEN_SWDIOTMSPEN_SHIFT , BUS_RegBitWrite() , and GPIO .

__STATIC_INLINE void GPIO_DbgSWOEnable ( bool enable )

Enable/Disable serial wire output pin.

Note: Enabling this pin is not sufficient to fully enable serial wire output, which is also dependent on issues outside the GPIO module. Refer to DBG_SWOEnable() .

Parameters

[in]


              enable

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

Definition at line 677 of file em_gpio.h .

References _GPIO_ROUTEPEN_SWVPEN_SHIFT , BUS_RegBitWrite() , and GPIO .

Referenced by DBG_SWOEnable() .

void GPIO_DriveStrengthSet	(	GPIO_Port_TypeDef	`port,`
		GPIO_DriveStrength_TypeDef	`strength`
	)

Sets the drive strength for a GPIO port.

Parameters

[in]	`port`	The GPIO port to access.
[in]	`strength`	The drive strength to use for the port.

Definition at line 128 of file em_gpio.c .

References _GPIO_P_CTRL_DRIVESTRENGTH_MASK , _GPIO_P_CTRL_DRIVESTRENGTHALT_MASK , BUS_RegMaskedWrite() , and GPIO .

__STATIC_INLINE void GPIO_EM4DisablePinWakeup ( uint32_t pinmask )

Disable GPIO pin wake-up from EM4.

Parameters

[in] pinmask Bit mask 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 708 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`	A bitmask containing the bitwise logic OR of which GPIO pin(s) to enable. See Reference Manuals for a pinmask to the GPIO port/pin mapping.
[in]	`polaritymask`	A bitmask containing the bitwise logic OR of GPIO pin(s) wake-up polarity. See Reference Manuals for pinmask-to-GPIO port/pin mapping.

Definition at line 348 of file em_gpio.c .

References _GPIO_EM4WUEN_MASK , _GPIO_EXTILEVEL_MASK , GPIO , 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: Bit mask 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 729 of file em_gpio.h .

References _GPIO_IF_EM4WU_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: On series 0 devices EM4 gpio retention can either be turned on or off. On series 1 devices there are three EM4 GPIO retention modes available. These modes are "Disabled", "EM4EXIT" and "SWUNLATCH". Use the EMU_EM4Init() to configure the GPIO retention mode on a series 1 device.

The behavior of this function depends on the configured GPIO retention mode. If the GPIO retention mode is configured to be "SWUNLATCH" then this function will not change anything. If the retention mode is anything else then this function will set the GPIO retention mode to "EM4EXIT" when the enable argument is true, and "Disabled" when false.

Parameters

[in]


              enable

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

Definition at line 761 of file em_gpio.h .

References _EMU_EM4CTRL_EM4IORETMODE_MASK , BUS_RegBitWrite() , EMU , EMU_EM4CTRL_EM4IORETMODE_DISABLE , EMU_EM4CTRL_EM4IORETMODE_EM4EXIT , EMU_EM4CTRL_EM4IORETMODE_SWUNLATCH , and GPIO .

Referenced by GPIO_EM4EnablePinWakeup() .

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

Configure the GPIO external pin interrupt.

It is recommended to disable interrupts before configuring the GPIO pin interrupt. See GPIO_IntDisable() for more information.

The 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, the 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 (interrupt number 0-3) 1: pins 4-7 (interrupt number 4-7) 2: pins 8-11 (interrupt number 8-11) 3: pins 12-15 (interrupt number 12-15)

Parameters

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

Definition at line 183 of file em_gpio.c .

References _GPIO_EXTIPINSELH_EXTIPINSEL8_MASK , _GPIO_EXTIPINSELH_EXTIPINSEL9_SHIFT , _GPIO_EXTIPINSELL_EXTIPINSEL0_MASK , _GPIO_EXTIPINSELL_EXTIPINSEL1_SHIFT , _GPIO_EXTIPSELH_EXTIPSEL8_MASK , _GPIO_EXTIPSELH_EXTIPSEL9_SHIFT , _GPIO_EXTIPSELL_EXTIPSEL0_MASK , _GPIO_EXTIPSELL_EXTIPSEL1_SHIFT , BUS_RegBitWrite() , BUS_RegMaskedWrite() , GPIO , and GPIO_IntClear() .

Referenced by BOARD_alsEnableIRQ() , BOARD_envSensEnableIRQ() , BOARD_gasSensorEnableIRQ() , BOARD_hallSensorEnableIRQ() , BOARD_imuEnableIRQ() , BOARD_pushButtonEnableIRQ() , and 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 807 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 824 of file em_gpio.h .

References GPIO .

Referenced by BOARD_alsClearIRQ() , BOARD_gasSensorClearIRQ() , BOARD_hallSensorClearIRQ() , BOARD_imuClearIRQ() , BOARD_picGetFwRevision() , BOARD_pushButton0ClearIRQ() , BOARD_pushButton1ClearIRQ() , GPIO_EM4EnablePinWakeup() , GPIO_ExtIntConfig() , 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; i.e., 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. 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 will be enabled on rising edge, otherwise false.
[in]	`fallingEdge`	Set to true if interrupts will be enabled on falling edge, otherwise false.
[in]	`enable`	Set to true if interrupt will be enabled after configuration completed, false to leave disabled. See GPIO_IntDisable() and GPIO_IntEnable() .

Definition at line 1297 of file em_gpio.h .

References GPIO_ExtIntConfig() .

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

__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 840 of file em_gpio.h .

References GPIO .

Referenced by BOARD_picGetFwRevision() , and DisableSi114xInterrupt() .

__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. To ignore a pending interrupt, consider using GPIO_IntClear() prior to enabling the interrupt.

Parameters

[in] flags GPIO interrupt sources to enable.

Definition at line 857 of file em_gpio.h .

References GPIO .

Referenced by BOARD_picGetFwRevision() , and EnableSi114xInterrupt() .

__STATIC_INLINE uint32_t GPIO_IntGet ( void )

Get pending GPIO interrupts.

Returns: GPIO interrupt sources pending.

Definition at line 869 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 889 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 908 of file em_gpio.h .

References GPIO .

Referenced by EnableSi114xInterrupt() .

__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 939 of file em_gpio.h .

References BUS_RegBitRead() , and GPIO .

Referenced by ADC0_IRQHandler() , BSP_McuBoard_UsbVbusOcFlagGet() , EnableSi114xInterrupt() , ezradio_hal_NirqLevel() , and TOUCH_IsBusy() .

__STATIC_INLINE void GPIO_PinLock	(	GPIO_Port_TypeDef	`port,`
		unsigned int	`pin`
	)

Lock all GPIO configuration settings for a given pin. The lock can only be cleared by a chip reset.

Parameters

[in]	`port`	The GPIO port to access.
[in]	`pin`	The pin number to lock.

Definition at line 958 of file em_gpio.h .

References BUS_RegBitWrite() , and GPIO .

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 319 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`	A value to set for the pin in the DOUT register. The DOUT setting is important for some input mode configurations to determine the pull-up/down direction.

Definition at line 270 of file em_gpio.c .

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

Referenced by ADC0_IRQHandler() , BOARD_envSensEnable() , BOARD_flashDeepPowerDown() , BOARD_gasSensorEnable() , BOARD_hallSensorEnable() , BOARD_init() , BSP_BccPinsEnable() , BSP_BusControlModeSet() , BSP_EbiInit() , BSP_initBoard() , BSP_McuBoard_DeInit() , BSP_McuBoard_Init() , BSP_McuBoard_UsbVbusPowerEnable() , CAPLESENSE_setupGPIO() , DBG_SWOEnable() , ezradio_hal_GpioInit() , gpioInit() , I2CSPM_Init() , ICM20648_spiInit() , initGpio() , KSZ8851SNL_SPI_Init() , MIC_deInit() , MIC_init() , MICROSD_Deinit() , MICROSD_Init() , MSDD_Init() , RETARGET_SerialEnableFlowControl() , RETARGET_SerialInit() , 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 987 of file em_gpio.h .

References BUS_RegMaskedClear() , and GPIO .

Referenced by BOARD_envSensEnable() , BOARD_flashDeepPowerDown() , BOARD_gasSensorEnable() , BOARD_gasSensorWake() , BOARD_hallSensorEnable() , BOARD_imuEnable() , BOARD_ledSet() , BOARD_micEnable() , BOARD_picGetFwRevision() , BOARD_rgbledEnable() , BOARD_rgbledPowerEnable() , BSP_McuBoard_UsbStatusLedEnable() , CAPT_enable() , 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 1012 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 1034 of file em_gpio.h .

References BUS_RegMaskedSet() , and GPIO .

Referenced by BOARD_envSensEnable() , BOARD_flashDeepPowerDown() , BOARD_gasSensorEnable() , BOARD_gasSensorWake() , BOARD_hallSensorEnable() , BOARD_imuEnable() , BOARD_ledSet() , BOARD_micEnable() , BOARD_picGetFwRevision() , BOARD_rgbledEnable() , BOARD_rgbledPowerEnable() , BSP_McuBoard_UsbStatusLedEnable() , CAPT_enable() , ezradio_hal_AssertShutdown() , ezradio_hal_SetNsel() , GPIO_PinModeSet() , I2CSPM_Init() , initEbiCommon() , 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 1061 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 1081 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 1103 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 1125 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 1147 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 1177 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`	Bit mask with pins to toggle.

Definition at line 1201 of file em_gpio.h .

References GPIO .

__STATIC_INLINE void GPIO_SlewrateSet	(	GPIO_Port_TypeDef	`port,`
		uint32_t	`slewrate,`
		uint32_t	`slewrateAlt`
	)

Set slewrate for pins on a GPIO port.

Parameters

[in]	`port`	The GPIO port to configure.
[in]	`slewrate`	The slewrate to configure for pins on this GPIO port.
[in]	`slewrateAlt`	The slewrate to configure for pins using alternate modes on this GPIO port.

Definition at line 1225 of file em_gpio.h .

References _GPIO_P_CTRL_SLEWRATE_MASK , _GPIO_P_CTRL_SLEWRATE_SHIFT , _GPIO_P_CTRL_SLEWRATEALT_MASK , _GPIO_P_CTRL_SLEWRATEALT_SHIFT , and GPIO .

GPIOEMLIB

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