文件名称:s3c44b0chumoping
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当手指或笔触摸屏幕时,平常相互绝缘的两层导电层就在触摸
点位置有了一个接触,因其中一面导电层接通X轴方向的5V均匀电压场(图a)
,使得检测层的电压由零变为非零,控制器侦测到这个接通后,进行A/D转换
,并将得到的电压值与5V相比即可得触摸点的X轴坐标为(原点在靠近接地点
的那端):Xi=Lx*Vi / V(即分压原理)同理得出Y轴的坐标,这就是所有电
阻技术触摸屏共同的最基本原理。-finger or pen to touch the screen, usually two mutually insulated conductive layer on location in touch with a contact, because either side conductive layer connected to the X-axis 5 V voltage field uniformity (a map), measuring the voltage level from zero to nonzero, the controller connected to the detection of this now, A / D conversion, and the voltage V compared with the five it can touch points for the X axis coordinates (close to the original point of getting access locations) : Xi'an Lx = Vi * / V (ie pressure principle) come empathy Y axis coordinates, This is all technical resistance Touchscreen common basic principles.
点位置有了一个接触,因其中一面导电层接通X轴方向的5V均匀电压场(图a)
,使得检测层的电压由零变为非零,控制器侦测到这个接通后,进行A/D转换
,并将得到的电压值与5V相比即可得触摸点的X轴坐标为(原点在靠近接地点
的那端):Xi=Lx*Vi / V(即分压原理)同理得出Y轴的坐标,这就是所有电
阻技术触摸屏共同的最基本原理。-finger or pen to touch the screen, usually two mutually insulated conductive layer on location in touch with a contact, because either side conductive layer connected to the X-axis 5 V voltage field uniformity (a map), measuring the voltage level from zero to nonzero, the controller connected to the detection of this now, A / D conversion, and the voltage V compared with the five it can touch points for the X axis coordinates (close to the original point of getting access locations) : Xi'an Lx = Vi * / V (ie pressure principle) come empathy Y axis coordinates, This is all technical resistance Touchscreen common basic principles.
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下载文件列表
压缩包 : 33753141s3c44b0chumoping.rar 列表 Touch Touch\readme.txt.txt Touch\source Touch\source\44B.H Touch\source\44BINIT.S Touch\source\44blib.a Touch\source\44blib.h Touch\source\Def.h Touch\source\Memcfg.s Touch\source\OPTION.H Touch\source\OPTION.s Touch\source\touch.c Touch\touch.mcp Touch\touch_Data Touch\touch_Data\CWSettingsWindows.stg Touch\touch_Data\Debug Touch\touch_Data\Debug\ObjectCode Touch\touch_Data\Debug\ObjectCode\44BINIT.o Touch\touch_Data\Debug\ObjectCode\touch.o Touch\touch_Data\Debug\TargetDataWindows.tdt Touch\touch_Data\Debug\touch.axf Touch\touch_Data\Debug\touch.bin