em_gpio.h File Reference

General Purpose IO (GPIO) peripheral API.

Version
5.5.0

License

Copyright 2016 Silicon Laboratories, Inc. www.silabs.com

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Definition in file em_gpio.h.

#include "em_device.h"
#include <stdbool.h>
#include "em_bus.h"
#include "em_assert.h"

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.
 
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.
 
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.