#include?
#include?

#define?V_REF?3

#define?BIT4?0x01?<#define?BIT5?0x01?<#define?BIT7?0x01?<
unsigned?char?volt;

void?main（void）
{
/*?disable?to?watchdog?timer?
??EA?=?0;
??WDTCN?=?0xDE;
??WDTCN?=?0xAD;
??EA?=?1;*/

/*?setup?serial?0?*/
??SCON0??=?0x50;????/*?SCON0:?mode?1?8-bit?UART?enable?rcvr???????????*/
??TMOD??|=?0x20;????/*?TMOD:??timer?1?mode?2?8-bit?reload?????????????*/
??TH1????=?221;?????/*?TH1:???reload?value?for?9600?baud?@?16MHz????????*/
??TR1????=?1;???????/*?TR1:???timer?1?run???????????????????????????????*/
??TI0????=?1;???????/*?TI0:???set?TI?to?send?first?char?of?UART?????????*/

??P0MDIN?&=?!0x01;??/*?Set?pin?P0.0?as?analog?input?????????????????????*/
??REF0CN??=?0x0A;???/*?Set?voltage?reference?to?“internal“??????????????*/
??ADC0CF??=?0xF9;???/*?Set?analog?amp?gain?to?1.0???????????????????????*/
??AMX0SL??=?0xF0;???/*?Set?MUX?to?pin?0?single?ended???????????????????*/
??AD0EN???=?1;??????/*?Set?AD1EN?to?activate?the?ADC????????????????????*/

/*?Start?first?sample?*/?
???AD0INT?=?0;??????/*?Clear?AD0INT?flag????????????????????????????????*/
???AD0BUSY?=?1;?????/*?Set?AD0BUSY?flag?this?starts?conversion?????????*/

??while（1）
??{
????if（AD0INT）
????{
??????//printf?（“ADC0?Count?%4u?=?%01u.%04u?Volts\r“
??????//??（unsigned）?ADC0
??????//??（unsigned）?（ADC0?*?V_REF）?>>?8????????????????????????/*?Output?Integer?Portion?*/
??????//??（unsigned）?（（ADC0?*?V_REF?*?10000UL）?>>?8UL）?%?10000）;?/*?Output?Decimal?Portion?*/??????
??????AD0INT?=?0;????/*?Clear?AD0INT?flag?????????????????????????*/
??????AD0BUSY?=?1;???/*?Set?AD0BUSY?flag?this?starts?conversion??*/
????}
??}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????4375??2004-07-14?15:29??ADC.Opt
?????文件????????1714??2004-07-14?15:18??main.c
?????文件????????2506??2004-07-14?15:24??main.OBJ
?????文件????????5115??2002-04-16?14:32??STARTUP.A51
?????文件?????????749??2004-07-14?15:24??STARTUP.OBJ
?????文件????????1147??2004-07-14?15:26??abstract.txt
?????文件????????3911??2004-07-14?15:23??debug.ini
?????文件?????????313??2004-07-14?15:29??ADC.plg
?????文件????????4077??2004-07-14?15:26??ADC.Uv2