2、信號(hào)采樣與A/D轉(zhuǎn)換子程序的設(shè)計(jì)

extern uchar code adcount2［3］;

extern bit bAd;//已產(chǎn)生AD值

extern bit b_warnled;

extern bit b_steady;

extern bit b_up_last;

extern uchar adup_count;

extern ulong idata ad_steady;//AD數(shù)據(jù)處理后的穩(wěn)定值

extern uchar add_count;//AD累加計(jì)數(shù)器

extern ulong idata add_val;//AD累加值

extern uchar wdcount;

extern uchar adup_count;//AD異常值計(jì)數(shù)

extern uchar addcount3;

extern ulong idata up_val;

extern ulong idata adval;//AD芯片采樣值

extern ulong idata lvbo［6］;

extern uchar idata follow_time;//零位跟蹤時(shí)間

extern uchar idata time_weight;//重量為0時(shí)，消隱時(shí)間

void time（void）;

ulong buf_left（ulong temp）;

/*******************************************/

//

void ad_processor（void）

{ ulong temp1;

ulong temp2;

uchar i;

bit b_up;

if（bAd）

bAd=0;

time（）;//時(shí)間計(jì)數(shù)器自減

//--------------------------------------------------------

adval=adval》》4;

add_val=add_val+adval;//傳感器累加濾波

add_count++;

if（add_count《addcount3）

return;

temp1=add_val/addcount3; //累加n次平均

add_count=0;

add_val=0;//傳感器累加清零

i=（uchar）（temp1》》16）+1;