#include?“includes.h“?
#include?“zyt_uart.h“
#include?“ZYT_AIN.h“

#define?KEYNUM??5??????????????????//定義按鍵的個數
#define?pressThreshold?0x12				//按下去的差值
#define?releaseThreshold?0x05???????????//釋放按鍵的閥值為按下的50%以下

typedef?struct
{
	INT16U?nowkeyvalue;?????????????????????//采集的當前值
	INT16U?basekeyvalue;???????????????????//?基準值
	INT16U?averagevalue;??????????????????//?無按鍵按下的平均值
	INT16U?dvalue;???????????????????????//?每次采集的差值
????INT8U??keyflag;??????????????????????//按鍵按下標志
????INT8U??Channel_Num;??????????????????//每一個KEY的通道號
????INT8U??baseoffset;???????????????????//設置偏移量
}touchkey;??
??
?xdata?touchkey?keyenum[KEYNUM];

??void?sys_enter_critical（void）
{
	EA?=?0;	
}

void?sys_exit_critical（void）
{
	EA?=?1;
}??

void?inittime0（void）
{
???AUXR|=0XC0;	???//12T模式
???TMOD|=0x02;???//16位定時計數器
???TH0?=?230;	??//5ms中斷	??0xc8
???TR0=1;???????//開始計數
???ET0=1;??????//允許中斷
}

???int8s?system_init（void）
{
	//?關閉系統所有中斷
	sys_enter_critical（）;
????inittime0（）;
	//串口初始化
	UART_Init（9600）;??
	AIN_Init?（）;???	
	//?打開系統中斷
	sys_exit_critical（）;

	return?0;
}

???
???void?initbaseline（void）
	{
	???INT8U?i;
	???INT32U?dataline;
?	???for（i=0;i	????{
???	????dataline=AIN_Vol_Read?（keyenum[i].Channel_Num500）;	??//大端模式?高位在低地址
	????keyenum[i].basekeyvalue=（（INT16U*）&dataline）[1];
????????keyenum[i].averagevalue=keyenum[i].basekeyvalue;
????????UART_Write（（INT8U*）&（keyenum[i].basekeyvalue）?2）;
????????}
	}
???
???void?updatabaseline（void）??//更新基準值
???	{
???	?INT8U?i;
	???for（i=0;i	{
	?keyenum[i].basekeyvalue?=keyenum[i].averagevalue;
	?UART_Write（（INT8U*）&（keyenum[i].basekeyvalue）?2）;
	?}
???	}
???
/*
???void?updataaverageline（void）
??	{
??	?INT8U?i;
	?for（i=0;i	{
	?keyenum[i].averagevalue=（keyenum[i].averagevalue?+?keyenum[i].nowkeyvalue）/2;
	?}
??	}?*/

???void?updataaverageline（INT8U?mode）
??	{
??	?INT8U?i;
	?for（i=0;i	{
	?switch（mode）
	?{
???????case?1:
	??????????keyenum[i].averagevalue=（keyenum[i].averagevalue?+?keyenum[i].nowkeyvalue）/2;
	??????????break;
	??case?2:?//avg?=?avg?-?（25%?*?avg）?+?（25%?*?reading）???
	??	??????keyenum[i].averagevalue-=（keyenum[i].averagevalue>>2）;
			??keyenum[i].averagevalue+=（keyenum[i].nowkeyvalue>>2）;
			??break;
	??case?3:?//avg?=?avg?-?（12.5%?*?avg）?+?（12.5%?*?reading）???
	??	??????keyenum[i].averagevalue-=（keyenum[i].averagevalue>>3）;
			??keyenum[i].averagevalue+=（keyenum[i].nowkeyvalue>>3）;
			??break;
	??case?4:??//average-average/16+now/16
	??	??????keyenum[i].averagevalue-=（keyenum[i].averagevalue>>4）;
			??keyenum[i].averagevalue+=（keyenum[i].nowkeyvalue>>4）;
			??break;
	?}
	?}
??	}


???void?releasekey（INT8U?key）??//釋放按鍵
??	{
??????INT8U?keynum;
	??INT16U?tmpdata;
	??INT32U?tmdata;
	??keynum=key;
	??while（1）?
		{
	??????tmdata=AIN_Vol_Read?（keyenum[keynum].Channel_Num10）;
	??????tmpdata=（（INT16U*）&tmdata）[1];
	??????if（tmpdata>（keyenum[keynum].bas

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????4737??2011-03-01?18:45??基于AD采集的電容觸摸\includes.h

?????文件???????6376??2011-08-04?11:51??基于AD采集的電容觸摸\STARTUP.A51

?????文件??????10680??2011-08-04?11:51??基于AD采集的電容觸摸\STARTUP.LST

?????文件????????750??2011-08-04?11:51??基于AD采集的電容觸摸\STARTUP.OBJ

?????文件??????17799??2010-12-06?16:02??基于AD采集的電容觸摸\STC12C5A60S2.H

?????文件??????40049??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey

?????文件???????5103??2011-08-06?17:01??基于AD采集的電容觸摸\touchkey.c

?????文件???????9551??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey.hex

?????文件?????????81??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey.lnp

?????文件??????10911??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey.LST

?????文件??????32705??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey.M51

?????文件??????19521??2011-08-06?17:02??基于AD采集的電容觸摸\touchkey.OBJ

?????文件???????2859??2011-08-06?17:47??基于AD采集的電容觸摸\touchkey.Opt

?????文件???????4079??2011-08-06?17:47??基于AD采集的電容觸摸\touchkey.plg

?????文件???????2377??2011-08-06?11:51??基于AD采集的電容觸摸\touchkey.Uv2

?????文件???????2849??2011-08-06?16:43??基于AD采集的電容觸摸\touchkey_Opt.Bak

?????文件???????2377??2011-08-06?11:48??基于AD采集的電容觸摸\touchkey_Uv2.Bak

?????文件???????8192??2011-08-05?18:20??基于AD采集的電容觸摸\Untitled?Project.IAB

?????文件????????408??2011-08-05?18:20??基于AD采集的電容觸摸\Untitled?Project.IAD

?????文件???????8192??2011-08-06?16:47??基于AD采集的電容觸摸\Untitled?Project.IMB

?????文件????????408??2011-08-06?16:47??基于AD采集的電容觸摸\Untitled?Project.IMD

?????文件?????????28??2011-08-06?17:46??基于AD采集的電容觸摸\Untitled?Project.PFI

?????文件????????776??2011-08-06?17:46??基于AD采集的電容觸摸\Untitled?Project.PO

?????文件???????2696??2011-08-05?18:20??基于AD采集的電容觸摸\Untitled?Project.PR

?????文件??????14680??2011-08-05?18:20??基于AD采集的電容觸摸\Untitled?Project.PRI

?????文件??????45748??2012-10-19?09:10??基于AD采集的電容觸摸\Untitled?Project.PS

?????文件????????346??2011-08-05?17:06??基于AD采集的電容觸摸\Untitled?Project.SearchResults

?????文件??????24332??2012-10-19?09:10??基于AD采集的電容觸摸\Untitled?Project.WK3

?????文件????????116??2011-08-06?11:59??基于AD采集的電容觸摸\UNTITL~1.SearchResults

?????文件???????4741??2011-08-06?16:46??基于AD采集的電容觸摸\ZYT_AIN.c

............此處省略11個文件信息