MTK Touch panel Driver(MTK平台触摸屏驱动).ppt

MTK Touch panel
2010/10/14
Agenda
Introduction
Features
Files
Frameworke
Driver
Touch Panel Introduction
Touch Panel Calibration Process
Touch panel event
Flow diagram
Exercise: tocuh panel event
Draw Manager
Introduction
Draw flow diagram
Event flow diagram
Controls map
Control sets
Coordinate Sets
Exercise: Add new screen
Editor and handwriting
Features
Enable touch panel in project()
TOUCH_PANEL_SUPPORT = TRUE
HAND_WRITING = MMI_HANWANG # MMI_HANWANG, MMI_PENPOWER
Enable touch panel in MMI(,do not modify)
#ifdef TOUCH_PANEL_SUPPORT
#define __MMI_TOUCH_SCREEN__
#endif
#ifdef __MMI_TOUCH_SCREEN__
#define __MMI_TOUCH_DIAL_SCREEN__
#define __MMI_DRAW_MANAGER__
#define __MMI_WGUI_CSK_ENABLE__
#endif
Files
System Driver
(drv\src)
(interface\hwdrv)
(interface\hwdrv)
(drv\src)
Custom Driver
(custom\drv\misc_drv\BOARD_VER)
(custom\drv\misc_drv\BOARD_VER)
(custom\drv\misc_drv\BOARD_VER)
(custom\drv\misc_drv\BOARD_VER)
MMI framework
(plutommi\mmi\framework\eventhandling\eventssrc)
(plutommi\mmi\framework\eventhandling\eventsinc)
MMI GUI
(plutommi\mmi\gui\gui_src)
(plutommi\mmi\gui\gui_inc)
(plutommi\mmi\gui\gui_src)
(plutommi\mmi\gui\gui_inc)
(plutommi\customer\custresource)
(plutommi\mmi\editorpen\editorpensrc)
Framework
System :
MMI :
MMI Application
Category screens
WGUI
GUI
Draw Manager
Protocol / Keypad / Interrupt event manager
Touch panel event manager
Driver: 4-Wire Resistive Touch Panel(1/3)
Driver: 4-Wire Resistive Touch Panel(2/3)
Driver: 4-Wire Resistive Touch Panel(3/3)
How to get a touch point coordinate?
on Y+,Y- drivers.
X+ ADC.
3. Use calibration data to transformed ADC value into coordina