Hendrik Lipka / ar1020

touch screen handler for the microchip AR1020

Embed: (wiki syntax)

« Back to documentation index

AR1020 Class Reference
Public Member Functions

AR1020 Class Reference

class handling all the connections to a AR1020 touch screen controller SPI is handled by bit-banging, since the SPI-mode is non-standard. More...

#include <ar1020.h>

Inherits TouchPanel.

Public Member Functions

 AR1020 (PinName mosi, PinName miso, PinName clk, PinName enable, PinName siq, PinName power)
 mosi the MOSI pin name (SDI) miso the MISO pin name (SDO) clk the CLK pin (SCL) enable the enable pin name (/CS) siq the SIQ pin name (SIQ) power the power pin name (connected to Vdd - this library does power handling for the AR1020)
virtual void init ()
 initialize the controller
virtual int x ()
 read X coordinate (from last update)
virtual int y ()
 read Y coordinate (from last update)
virtual int pen ()
virtual void read ()
 read coordinates on request
void calibrate ()
 execute touch screen calibration
template<class T >
void attachPenDown (T *item, uint32_t(T::*method)(uint32_t))
 attach listener called on 'pen-down' item the callback object method the callback method
void attachPenDown (uint32_t(*function)(uint32_t))
 attach listener called on 'pen-down' function the callback function
template<class T >
void attachPenMove (T *item, uint32_t(T::*method)(uint32_t))
 attach listener called on 'pen-move' item the callback object method the callback method
void attachPenMove (uint32_t(*function)(uint32_t))
 attach listener called on 'pen-move' function the callback function
template<class T >
void attachPenUp (T *item, uint32_t(T::*method)(uint32_t))
 attach listener called on 'pen-up' item the callback object method the callback method
void attachPenUp (uint32_t(*function)(uint32_t))
 attach listener called on 'pen-up' function the callback function

Detailed Description

class handling all the connections to a AR1020 touch screen controller SPI is handled by bit-banging, since the SPI-mode is non-standard.

Therefore all pins can be used for the connection. Since the AR1020 seems to be sensitive to the changing pin signals during reset and startup, this library controls the AR1020 power (so it's Vcc must be connected to an mbed pin)

Definition at line 37 of file ar1020.h.

Constructor & Destructor Documentation

AR1020 ( PinName  mosi,
PinName  miso,
PinName  clk,
PinName  enable,
PinName  siq,
PinName  power 
)

mosi the MOSI pin name (SDI) miso the MISO pin name (SDO) clk the CLK pin (SCL) enable the enable pin name (/CS) siq the SIQ pin name (SIQ) power the power pin name (connected to Vdd - this library does power handling for the AR1020)

Definition at line 27 of file ar1020.cpp.

Member Function Documentation

void attachPenDown ( T *  item,
uint32_t(T::*)(uint32_t)  method 
) [inherited]

attach listener called on 'pen-down' item the callback object method the callback method

Definition at line 66 of file touchpanel.h.

void attachPenDown ( uint32_t(*)(uint32_t)  function ) [inherited]

attach listener called on 'pen-down' function the callback function

Definition at line 71 of file touchpanel.h.

void attachPenMove ( T *  item,
uint32_t(T::*)(uint32_t)  method 
) [inherited]

attach listener called on 'pen-move' item the callback object method the callback method

Definition at line 78 of file touchpanel.h.

void attachPenMove ( uint32_t(*)(uint32_t)  function ) [inherited]

attach listener called on 'pen-move' function the callback function

Definition at line 83 of file touchpanel.h.

void attachPenUp ( T *  item,
uint32_t(T::*)(uint32_t)  method 
) [inherited]

attach listener called on 'pen-up' item the callback object method the callback method

Definition at line 90 of file touchpanel.h.

void attachPenUp ( uint32_t(*)(uint32_t)  function ) [inherited]

attach listener called on 'pen-up' function the callback function

Definition at line 95 of file touchpanel.h.

void calibrate (  )

execute touch screen calibration

Definition at line 241 of file ar1020.cpp.

void init (  ) [virtual]

initialize the controller

Definition at line 51 of file ar1020.cpp.

int pen (  ) [virtual]
Returns:
0 if pen is up, 1 if pen is down

Definition at line 99 of file ar1020.cpp.

void read (  ) [virtual]

read coordinates on request

Definition at line 104 of file ar1020.cpp.

int x (  ) [virtual]

read X coordinate (from last update)

Returns:
last known X coordinate

Definition at line 91 of file ar1020.cpp.

int y (  ) [virtual]

read Y coordinate (from last update)

Returns:
last known Y coordinate

Definition at line 95 of file ar1020.cpp.

Generated on Tue Jul 12 2022 18:15:38 by  doxygen 1.7.2