TouchKit Drivers

Data Structures

struct TOUCH_Config_TypeDef
struct TOUCH_Pos_TypeDef

Macros

#define TOUCH_INIT_DEFAULT

Typedefs

typedef void( TOUCH_Upcall_TypeDef ) ( TOUCH_Pos_TypeDef *)

Functions

int TOUCH_CalibrationTable (POINT *displayPtr, POINT *screenPtr)
Set calibration table.
TOUCH_Pos_TypeDef * TOUCH_GetPos (void)
Returns current touch position and state.
void TOUCH_Init ( TOUCH_Config_TypeDef *config)
Initialize touch panel driver.
int TOUCH_IsBusy (void)
Check status of the touch panel.
void TOUCH_RegisterUpcall ( TOUCH_Upcall_TypeDef *new_upcall)
Register upcall which will be call every position or state change.

Macro Definition Documentation

#define TOUCH_INIT_DEFAULT
Value:
{ 500000, /* 500kHz sampling frequency */ \
1, /* Ignore moves not greater than 1 pixel */ \
adcOvsRateSel128, /* Oversampling 128 times */ \
}

Initializes Touch default values

Definition at line 61 of file touch.h .

Typedef Documentation

typedef void( TOUCH_Upcall_TypeDef) ( TOUCH_Pos_TypeDef *)

touch panel upcall type definition

Definition at line 68 of file touch.h .

Function Documentation

int TOUCH_CalibrationTable ( POINT * displayPtr,
POINT * screenPtr
)

Set calibration table.

Parameters
[in] displayPtr Table of display points
[in] screenPtr Table of adc values reflecting display points
Returns
Returns OK if calibration table is set.

Definition at line 406 of file touch.c .

References calibrationMatrix .

TOUCH_Pos_TypeDef * TOUCH_GetPos ( void )

Returns current touch position and state.

Returns
Current touch position and state

Definition at line 369 of file touch.c .

References ADC0 , ADC_IF_SINGLE , ADC_IntDisable() , ADC_IntEnable() , TOUCH_Pos_TypeDef::adcx , TOUCH_Pos_TypeDef::adcy , TOUCH_Pos_TypeDef::pen , TOUCH_Pos_TypeDef::x , and TOUCH_Pos_TypeDef::y .

void TOUCH_Init ( TOUCH_Config_TypeDef * config )

Initialize touch panel driver.

Parameters
config Driver configuration data.

Definition at line 337 of file touch.c .

References _ADC_IF_MASK , ADC0 , ADC0_IRQn , ADC_IF_SINGLE , ADC_Init() , ADC_INIT_DEFAULT , ADC_InitSingle() , ADC_IntClear() , ADC_IntDisable() , ADC_IntEnable() , ADC_PrescaleCalc() , ADC_Start() , ADC_Y , adcRefVDD , adcResOVS , adcStartSingle , BSP_PeripheralAccess() , BSP_TOUCH , CMU_ClockEnable() , cmuClock_ADC0 , TOUCH_Config_TypeDef::frequency , TOUCH_Config_TypeDef::ignore , TOUCH_Config_TypeDef::oversampling , ADC_Init_TypeDef::ovsRateSel , ADC_Init_TypeDef::prescale , ADC_InitSingle_TypeDef::reference , and ADC_InitSingle_TypeDef::resolution .

int TOUCH_IsBusy ( void )

Check status of the touch panel.

Returns
0 if panel is idle (not touched).

Definition at line 317 of file touch.c .

References GPIO_PinInGet() , TOUCH_X2_PIN , and TOUCH_X2_PORT .

void TOUCH_RegisterUpcall ( TOUCH_Upcall_TypeDef * new_upcall )

Register upcall which will be call every position or state change.

Parameters
[in] new_upcall Pointer to upcall function

Definition at line 389 of file touch.c .