CHIP: LPC13xx GPIO Driver

Detailed Description

Functions
void	Chip_GPIO_Init (LPC_GPIO_T *pGPIO)
	Initialize GPIO block.
STATIC INLINE void	Chip_GPIO_WritePortBit (LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit, bool setting)
	Set a GPIO port/bit state.
STATIC INLINE void	Chip_GPIO_WriteDirBit (LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit, bool setting)
	Seta GPIO direction.
STATIC INLINE bool	Chip_GPIO_ReadPortBit (LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit)
	Read a GPIO state.
STATIC INLINE bool	Chip_GPIO_ReadDirBit (LPC_GPIO_T *pGPIO, uint32_t port, uint8_t bit)
	Read a GPIO direction (out or in)
STATIC INLINE void	Chip_GPIO_IntCmd (LPC_GPIO_T *pGPIO, uint8_t portNum, uint8_t bitValue, IP_GPIOPININT_MODE_T mode)
	Enable GPIO Interrupt.
STATIC INLINE bool	Chip_GPIO_IntGetStatus (LPC_GPIO_T *pGPIO, uint8_t portNum, uint8_t pinNum, uint8_t mode)
	Get GPIO Interrupt Status.
STATIC INLINE void	Chip_GPIO_IntClear (LPC_GPIO_T *pGPIO, uint8_t portNum, uint8_t bitValue)
	Clear GPIO Interrupt (Edge interrupt cases only)
void	Chip_GPIO_SetDir (LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue, uint8_t out)
	Set Direction for a GPIO port.
STATIC INLINE void	Chip_GPIO_SetValue (LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue)
	Set a GPIO port/bit to the high state.
STATIC INLINE void	Chip_GPIO_ClearValue (LPC_GPIO_T *pGPIO, uint8_t portNum, uint32_t bitValue)
	Set a GPIO port/bit to the low state.
STATIC INLINE uint32_t	Chip_GPIO_ReadValue (LPC_GPIO_T *pGPIO, uint8_t portNum)
	Read current bit states for the selected port.

Function Documentation

STATIC INLINE void Chip_GPIO_ClearValue	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint32_t	bitValue
	)

Set a GPIO port/bit to the low state.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: Port number
bitValue	: Bit(s) in the port to set low

Returns

None

Note

Any bit set as a '0' will not have it's state changed. This only applies to ports configured as an output.

Definition at line 332 of file gpio_13xx.h.

void Chip_GPIO_Init

(

LPC_GPIO_T *

pGPIO

)

Initialize GPIO block.

Parameters

pGPIO

: The base of GPIO peripheral on the chip

Returns

Nothing

Definition at line 51 of file gpio_11xx.c.

STATIC INLINE void Chip_GPIO_IntClear	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint8_t	bitValue
	)

Clear GPIO Interrupt (Edge interrupt cases only)

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: GPIO port number interrupt, should be: 0 to 7
bitValue	: GPIO bit to clear (Not used)

Returns

None

Definition at line 161 of file gpio_13xx.h.

STATIC INLINE void Chip_GPIO_IntCmd	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint8_t	bitValue,
		IP_GPIOPININT_MODE_T	mode
	)

Enable GPIO Interrupt.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: GPIO port number interrupt, should be: 0 to 7
bitValue	: GPIO bit to enable (Not used)
mode	: Interrupt mode

Returns

None

Definition at line 128 of file gpio_13xx.h.

STATIC INLINE bool Chip_GPIO_IntGetStatus	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint8_t	pinNum,
		uint8_t	mode
	)

Get GPIO Interrupt Status.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: GPIO port number interrupt, should be: 0 to 7
pinNum	: GPIO pin to check (Not used)
mode	: Interrupt mode (Not used)

Returns

true if interrupt is pending, otherwise false

Definition at line 145 of file gpio_13xx.h.

STATIC INLINE bool Chip_GPIO_ReadDirBit	(	LPC_GPIO_T *	pGPIO,
		uint32_t	port,
		uint8_t	bit
	)

Read a GPIO direction (out or in)

Parameters

pGPIO	: The base of GPIO peripheral on the chip
port	: GPIO port to read
bit	: GPIO bit to read

Returns

true of the GPIO is an output, false if input

Definition at line 111 of file gpio_13xx.h.

STATIC INLINE bool Chip_GPIO_ReadPortBit	(	LPC_GPIO_T *	pGPIO,
		uint32_t	port,
		uint8_t	bit
	)

Read a GPIO state.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
port	: GPIO port to read
bit	: GPIO bit to read

Returns

true of the GPIO is high, false if low

Definition at line 95 of file gpio_13xx.h.

STATIC INLINE uint32_t Chip_GPIO_ReadValue	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum
	)

Read current bit states for the selected port.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: Port number to read

Returns

Current value of GPIO port

Note

The current states of the bits for the port are read, regardless of whether the GPIO port bits are input or output.

Definition at line 349 of file gpio_13xx.h.

void Chip_GPIO_SetDir	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint32_t	bitValue,
		uint8_t	out
	)

Set Direction for a GPIO port.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: Port Number
bitValue	: GPIO bit to set
out	: Direction value, 0 = input, !0 = output

Returns

None

Note

Bits set to '0' are not altered.

Definition at line 68 of file gpio_11xx.c.

STATIC INLINE void Chip_GPIO_SetValue	(	LPC_GPIO_T *	pGPIO,
		uint8_t	portNum,
		uint32_t	bitValue
	)

Set a GPIO port/bit to the high state.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
portNum	: Port number
bitValue	: Bit(s) in the port to set high

Returns

None

Note

Any bit set as a '0' will not have it's state changed. This only applies to ports configured as an output.

Definition at line 314 of file gpio_13xx.h.

STATIC INLINE void Chip_GPIO_WriteDirBit	(	LPC_GPIO_T *	pGPIO,
		uint32_t	port,
		uint8_t	bit,
		bool	setting
	)

Seta GPIO direction.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
port	: GPIO port to set
bit	: GPIO bit to set
setting	: true for output, false for input

Returns

Nothing

Definition at line 79 of file gpio_13xx.h.

STATIC INLINE void Chip_GPIO_WritePortBit	(	LPC_GPIO_T *	pGPIO,
		uint32_t	port,
		uint8_t	bit,
		bool	setting
	)

Set a GPIO port/bit state.

Parameters

pGPIO	: The base of GPIO peripheral on the chip
port	: GPIO port to set
bit	: GPIO bit to set
setting	: true for high, false for low

Returns

Nothing

Definition at line 62 of file gpio_13xx.h.