/********************************************************************/
/********************************************************************/
/*****??????????????????????????????????????????????????????????*****/
/*****????????L?A?B?C?E?N?T?E?R????E?L?E?C?T?R?O?N?I?C?S????????*****/
/*****??????????????????????????????????????????????????????????*****/
/*****???????LABCENTER?INTEGRATED?SIMULATION?ARCHITECTURE???????*****/
/*****??????????????????????????????????????????????????????????*****/
/*****????????????Test?program?for?AD1674?and?80C51?????????????*****/
/*****??????????????????????????????????????????????????????????*****/
/********************************************************************/
/********************************************************************/

#include?
#include??
#include?

//?define?P1.0?to?check?STATUS.
sbit?STATUS?=?P1^0;

unsigned?char?xdata?CTRL??_at_?0x2FFF;
unsigned?char?xdata?ADSEL?_at_?0x4FFF;
unsigned?char?hByte;
unsigned?char?lByte;

void?adc_Convert?（void）
?{?//?Start?a?conversion?with?A0?and?A/$C$?low.?
???//?The?convesion?takes?place?on?rising?CE?edge.
???CTRL??=?0x00;?
???ADSEL?=?0x00;
???//?Wait?until?we?have?completed?a?conversion?.
???while（STATUS==1）;
???//?Set?R/$C$?with?A0?low?and?read?the?low?byte.?
???CTRL??=?0x02;?
???hByte?=?ADSEL;?
???//?Set?R/$C$?with?A0?high?and?read?the?high.?
???CTRL??=?0x03;?
???lByte?=?ADSEL;?
?}


void?main（void）
?{?unsigned?int?delay?MSB??LSB?adc_Res;
???//?Initialize?serial?interface
???SCON??=?0xDA;????????//?SCON:?mode?1?8-bit?UART?enable?rcvr??????*/
???TMOD?|=?0x20;????????//?TMOD:?timer?1?mode?2?8-bit?reload????????*/
???TH1???=?0xFD;????????//?TH1:??reload?value?for?1200?baud?@?12MHz???*/
???TR1???=?1;???????????//?TR1:??timer?1?run??????????????????????????*/
???TI????=?1;???????????//?TI:???set?TI?to?send?first?char?of?UART????*/
???
???while（1）
????{?adc_Convert（）;
??????MSB=（unsigned?int）（hByte?<??????LSB=（unsigned?int）（lByte?>>?4）;
??????//?adc_Res?now?has?the?converted?data?with?12-bit?resolution.
??????adc_Res?=?MSB?+?LSB;
??????//?Send?adc?results?to?the?serial?interface
??????printf（“ADC?READINGS:?%03Xh\n“?adc_Res）;
?????//?simple?delay?-?it?is?mcu?clock?dependent?!
??????for?（delay=0;?delay<10000;?delay++）?
	????;
????}
?}
?

?屬性????????????大小?????日期????時間???名稱
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?????目錄???????????0??2018-02-25?11:01??Proteus?7?Professional\
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