/********************************************************
*??說明：AD0809的應用：初始化時配置通道，首先鎖存允許，	*
*	?????輸入地址，再把start和oe拉低，產生啟動脈沖，啟??*
*		?動轉換，等待EOC電平變為無效，等待轉換結束，拉??*
*		?高OE接受輸出數據								*
********************************************************/

#include?“AD0809.h“

extern?u8?adval;

//AD0809初始化
static?void?AD0809_init（void）
{
	ALE?=?1;???//地址鎖存允許
	ADDA?=?0;???//選擇通道0??CBA?000
	ADDB?=?0;
	ADDC?=?0;
	ALE?=?0;???//地址鎖存禁止（即是無法寫地址值進去）

	START?=?0;?
	OE?=?0;??
}

//AD0809啟動轉換
void?AD0809_start（void）
{
	AD0809_init（）;??
	START?=?1;?//上升沿清除寄存器值
	START?=?0;?//下降沿啟動轉換
	
	delay（1）;??//啟動轉換后EOC在10us之后才變為無效的，若在10us之前檢測EOC狀態都是得到錯誤的數據
	while（!EOC）;?//等待轉換結束	?轉換結束EOC輸出高電平
	
	OE?=1;?//讀取數據
	adval?=?P3;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2013-05-30?02:16??LCD1602與AD0809\
?????目錄???????????0??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\
?????文件???????14039??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809
?????文件?????????905??2013-05-15?23:12??LCD1602與AD0809\LCD1602與AD0809\AD0809.c
?????文件?????????272??2013-05-15?22:06??LCD1602與AD0809\LCD1602與AD0809\AD0809.h
?????文件????????2008??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.hex
?????文件??????????85??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.lnp
?????文件????????2357??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.LST
?????文件???????15277??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.M51
?????文件????????2931??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.OBJ
?????文件?????????617??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.plg
?????文件???????58089??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809.uvopt
?????文件???????14051??2013-05-15?22:21??LCD1602與AD0809\LCD1602與AD0809\AD0809.uvproj
?????文件???????58085??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\AD0809_uvopt.bak
?????文件???????13719??2013-05-15?20:58??LCD1602與AD0809\LCD1602與AD0809\AD0809_uvproj.bak
?????文件??????967470??2013-05-15?21:21??LCD1602與AD0809\LCD1602與AD0809\AD0809中文.pdf
?????文件????????5769??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\lcd.c
?????文件?????????372??2013-05-15?23:01??LCD1602與AD0809\LCD1602與AD0809\lcd.h
?????文件???????11942??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\lcd.LST
?????文件????????8307??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\lcd.OBJ
?????文件?????????577??2013-05-15?23:30??LCD1602與AD0809\LCD1602與AD0809\main.c
?????文件????????2029??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\main.LST
?????文件????????3463??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\main.OBJ
?????文件????????6376??2009-05-07?14:37??LCD1602與AD0809\LCD1602與AD0809\STARTUP.A51
?????文件???????14062??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\STARTUP.LST
?????文件?????????749??2013-05-30?02:17??LCD1602與AD0809\LCD1602與AD0809\STARTUP.OBJ