Gpt

Data Structures
struct	_gpt_init_config
	Structure to configure the running mode. More...

Variables
gpt_clock_source_t	_gpt_init_config::clockSource
uint32_t	_gpt_init_config::divider
bool	_gpt_init_config::enableFreeRun
bool	_gpt_init_config::enableRunInWait
bool	_gpt_init_config::enableRunInStop
bool	_gpt_init_config::enableRunInDoze
bool	_gpt_init_config::enableRunInDbg
bool	_gpt_init_config::enableMode

Driver version
enum	_gpt_clock_source {   kGPT_ClockSource_Off = 0U , kGPT_ClockSource_Periph = 1U , kGPT_ClockSource_HighFreq = 2U , kGPT_ClockSource_Ext = 3U ,   kGPT_ClockSource_LowFreq = 4U , kGPT_ClockSource_Osc = 5U }
	List of clock sources. More...
enum	_gpt_input_capture_channel { kGPT_InputCapture_Channel1 = 0U , kGPT_InputCapture_Channel2 = 1U }
	List of input capture channel number. More...
enum	_gpt_input_operation_mode { kGPT_InputOperation_Disabled = 0U , kGPT_InputOperation_RiseEdge = 1U , kGPT_InputOperation_FallEdge = 2U , kGPT_InputOperation_BothEdge = 3U }
	List of input capture operation mode. More...
enum	_gpt_output_compare_channel { kGPT_OutputCompare_Channel1 = 0U , kGPT_OutputCompare_Channel2 = 1U , kGPT_OutputCompare_Channel3 = 2U }
	List of output compare channel number. More...
enum	_gpt_output_operation_mode {   kGPT_OutputOperation_Disconnected = 0U , kGPT_OutputOperation_Toggle = 1U , kGPT_OutputOperation_Clear = 2U , kGPT_OutputOperation_Set = 3U ,   kGPT_OutputOperation_Activelow = 4U }
	List of output compare operation mode. More...
enum	_gpt_interrupt_enable {   kGPT_OutputCompare1InterruptEnable = GPT_IR_OF1IE_MASK , kGPT_OutputCompare2InterruptEnable = GPT_IR_OF2IE_MASK , kGPT_OutputCompare3InterruptEnable = GPT_IR_OF3IE_MASK , kGPT_InputCapture1InterruptEnable = GPT_IR_IF1IE_MASK ,   kGPT_InputCapture2InterruptEnable = GPT_IR_IF2IE_MASK , kGPT_RollOverFlagInterruptEnable = GPT_IR_ROVIE_MASK }
	List of GPT interrupts. More...
enum	_gpt_status_flag {   kGPT_OutputCompare1Flag = GPT_SR_OF1_MASK , kGPT_OutputCompare2Flag = GPT_SR_OF2_MASK , kGPT_OutputCompare3Flag = GPT_SR_OF3_MASK , kGPT_InputCapture1Flag = GPT_SR_IF1_MASK ,   kGPT_InputCapture2Flag = GPT_SR_IF2_MASK , kGPT_RollOverFlag = GPT_SR_ROV_MASK }
	Status flag. More...
typedef enum _gpt_clock_source	gpt_clock_source_t
	List of clock sources.
typedef enum _gpt_input_capture_channel	gpt_input_capture_channel_t
	List of input capture channel number.
typedef enum _gpt_input_operation_mode	gpt_input_operation_mode_t
	List of input capture operation mode.
typedef enum _gpt_output_compare_channel	gpt_output_compare_channel_t
	List of output compare channel number.
typedef enum _gpt_output_operation_mode	gpt_output_operation_mode_t
	List of output compare operation mode.
typedef enum _gpt_interrupt_enable	gpt_interrupt_enable_t
	List of GPT interrupts.
typedef enum _gpt_status_flag	gpt_status_flag_t
	Status flag.
typedef struct _gpt_init_config	gpt_config_t
	Structure to configure the running mode.
#define	FSL_GPT_DRIVER_VERSION   (MAKE_VERSION(2, 0, 4))

Initialization and deinitialization
void	GPT_Init (GPT_Type *base, const gpt_config_t *initConfig)
	Initialize GPT to reset state and initialize running mode.
void	GPT_Deinit (GPT_Type *base)
	Disables the module and gates the GPT clock.
void	GPT_GetDefaultConfig (gpt_config_t *config)
	Fills in the GPT configuration structure with default settings.

Detailed Description

Typedef Documentation

gpt_clock_source_t

typedef enum _gpt_clock_source gpt_clock_source_t

List of clock sources.

Note

Actual number of clock sources is SoC dependent

Enumeration Type Documentation

_gpt_clock_source

enum _gpt_clock_source

List of clock sources.

Note

Actual number of clock sources is SoC dependent

Enumerator
kGPT_ClockSource_Off	GPT Clock Source Off.
kGPT_ClockSource_Periph	GPT Clock Source from Peripheral Clock.
kGPT_ClockSource_HighFreq	GPT Clock Source from High Frequency Reference Clock.
kGPT_ClockSource_Ext	GPT Clock Source from external pin.
kGPT_ClockSource_LowFreq	GPT Clock Source from Low Frequency Reference Clock.
kGPT_ClockSource_Osc	GPT Clock Source from Crystal oscillator.

_gpt_input_capture_channel

enum _gpt_input_capture_channel

List of input capture channel number.

Enumerator
kGPT_InputCapture_Channel1	GPT Input Capture Channel1.
kGPT_InputCapture_Channel2	GPT Input Capture Channel2.

_gpt_input_operation_mode

enum _gpt_input_operation_mode

List of input capture operation mode.

Enumerator
kGPT_InputOperation_Disabled	Don't capture.
kGPT_InputOperation_RiseEdge	Capture on rising edge of input pin.
kGPT_InputOperation_FallEdge	Capture on falling edge of input pin.
kGPT_InputOperation_BothEdge	Capture on both edges of input pin.

_gpt_interrupt_enable

enum _gpt_interrupt_enable

List of GPT interrupts.

Enumerator
kGPT_OutputCompare1InterruptEnable	Output Compare Channel1 interrupt enable
kGPT_OutputCompare2InterruptEnable	Output Compare Channel2 interrupt enable
kGPT_OutputCompare3InterruptEnable	Output Compare Channel3 interrupt enable
kGPT_InputCapture1InterruptEnable	Input Capture Channel1 interrupt enable
kGPT_InputCapture2InterruptEnable	Input Capture Channel1 interrupt enable
kGPT_RollOverFlagInterruptEnable	Counter rolled over interrupt enable

_gpt_output_compare_channel

enum _gpt_output_compare_channel

List of output compare channel number.

Enumerator
kGPT_OutputCompare_Channel1	Output Compare Channel1.
kGPT_OutputCompare_Channel2	Output Compare Channel2.
kGPT_OutputCompare_Channel3	Output Compare Channel3.

_gpt_output_operation_mode

enum _gpt_output_operation_mode

List of output compare operation mode.

Enumerator
kGPT_OutputOperation_Disconnected	Don't change output pin.
kGPT_OutputOperation_Toggle	Toggle output pin.
kGPT_OutputOperation_Clear	Set output pin low.
kGPT_OutputOperation_Set	Set output pin high.
kGPT_OutputOperation_Activelow	Generate a active low pulse on output pin.

_gpt_status_flag

enum _gpt_status_flag

Status flag.

Enumerator
kGPT_OutputCompare1Flag	Output compare channel 1 event.
kGPT_OutputCompare2Flag	Output compare channel 2 event.
kGPT_OutputCompare3Flag	Output compare channel 3 event.
kGPT_InputCapture1Flag	Input Capture channel 1 event.
kGPT_InputCapture2Flag	Input Capture channel 2 event.
kGPT_RollOverFlag	Counter reaches maximum value and rolled over to 0 event.

Function Documentation

GPT_Deinit()

void GPT_Deinit

(

GPT_Type *

base

)

Disables the module and gates the GPT clock.

Parameters

base	GPT peripheral base address.

brief Disables the module and gates the GPT clock.

param base GPT peripheral base address.

GPT_GetDefaultConfig()

void GPT_GetDefaultConfig

(

gpt_config_t *

config

)

Fills in the GPT configuration structure with default settings.

The default values are:

config->clockSource = kGPT_ClockSource_Periph;
config->divider = 1U;
config->enableRunInStop = true;
config->enableRunInWait = true;
config->enableRunInDoze = false;
config->enableRunInDbg = false;
config->enableFreeRun = false;
config->enableMode  = true;

Parameters

config

Pointer to the user configuration structure.

brief Fills in the GPT configuration structure with default settings.

The default values are: code config->clockSource = kGPT_ClockSource_Periph; config->divider = 1U; config->enableRunInStop = true; config->enableRunInWait = true; config->enableRunInDoze = false; config->enableRunInDbg = false; config->enableFreeRun = false; config->enableMode = true; endcode param config Pointer to the user configuration structure.

GPT_Init()

void GPT_Init	(	GPT_Type *	base,
		const gpt_config_t *	initConfig
	)

Initialize GPT to reset state and initialize running mode.

Parameters

base	GPT peripheral base address.
initConfig	GPT mode setting configuration.

brief Initialize GPT to reset state and initialize running mode.

param base GPT peripheral base address. param initConfig GPT mode setting configuration.

Variable Documentation

clockSource

gpt_clock_source_t _gpt_init_config::clockSource

clock source for GPT module.

divider

uint32_t _gpt_init_config::divider

clock divider (prescaler+1) from clock source to counter.

enableFreeRun

bool _gpt_init_config::enableFreeRun

true: FreeRun mode, false: Restart mode.

enableMode

bool _gpt_init_config::enableMode

true: counter reset to 0 when enabled; false: counter retain its value when enabled.

enableRunInDbg

bool _gpt_init_config::enableRunInDbg

GPT enabled in debug mode.

enableRunInDoze

bool _gpt_init_config::enableRunInDoze

GPT enabled in doze mode.

enableRunInStop

bool _gpt_init_config::enableRunInStop

GPT enabled in stop mode.

enableRunInWait

bool _gpt_init_config::enableRunInWait

GPT enabled in wait mode.