//線性區(qū)間標度變換公式：????y=（115-15）/（243-13）*X+15kpa???


#include??
#include?
#include?


#define?R24C04ADD?0xA1
#define?W24C04ADD?0xA0

//ADC0832的引腳
sbit?ADCS?=P2^2;??//ADC0832?chip?seclect
sbit?ADDI?=P2^4;??//ADC0832?k?in
sbit?ADDO?=P2^4;??//ADC0832?k?out
sbit?ADCLK?=P2^3;??//ADC0832?clock?signal


sbit?SDA?=?P2?^?1;	????????????????????????//數(shù)據(jù)線
sbit?SCL?=?P2?^?0;	????????????????????????//時鐘線
bit?bAck;	??????????????????????????????????//應(yīng)答標志?當bbAck=1是為正確的應(yīng)答

unsigned?char?dispbitcode[8]={0xf70xfb0xfd0xfe0xef0xdf0xbf0x7f};??//位掃描
unsigned?char?dispcode[11]={0xC00xF90xA40xB00x990x920x820xF80x800x900xff};??//共陽數(shù)碼管字段碼
unsigned?char?dispbuf[4];
unsigned?int?temp;
unsigned?char?getdata;?//獲取ADC轉(zhuǎn)換回來的值


void?delay_1ms（void）??//12mhz?delay?1.01ms
{
???unsigned?char?xy;???
???x=3;
???while（x--）?
??{
???????y=40;
???????while（y--）;
????}
}
void?display（void）??//數(shù)碼管顯示函數(shù)
{
??char?k;
??for（k=0;k<4;k++）
??{

??P1?=?dispbitcode[k];
??P0?=?dispcode[dispbuf[k]];
??if（k==1）	??//加上數(shù)碼管的dp小數(shù)點
??	P0&=0x7f;
??delay_1ms（）;	??
??}
}

/************
讀ADC0832函數(shù)
************/

//采集并返回
unsigned?int?Adc0832（unsigned?char?channel）?????//AD轉(zhuǎn)換，返回結(jié)果
{
????unsigned?char?i=0;
????unsigned?char?j;
????unsigned?int?dat=0;
????unsigned?char?ndat=0;

????if（channel==0）channel=2;
????if（channel==1）channel=3;
????ADDI=1;
????_nop_（）;
????_nop_（）;
????ADCS=0;//拉低CS端
????_nop_（）;
????_nop_（）;
????ADCLK=1;//拉高CLK端
????_nop_（）;
????_nop_（）;
????ADCLK=0;//拉低CLK端形成下降沿1
????_nop_（）;
????_nop_（）;
????ADCLK=1;//拉高CLK端
????ADDI=channel&0x1;
????_nop_（）;
????_nop_（）;
????ADCLK=0;//拉低CLK端形成下降沿2
????_nop_（）;
????_nop_（）;
????ADCLK=1;//拉高CLK端
????ADDI=（channel>>1）&0x1;
????_nop_（）;
????_nop_（）;
????ADCLK=0;//拉低CLK端形成下降沿3
????ADDI=1;//控制命令結(jié)束?
????_nop_（）;
????_nop_（）;
????dat=0;
????for（i=0;i<8;i++）
????{
????????dat|=ADDO;//收數(shù)據(jù)
????????ADCLK=1;
????????_nop_（）;
????????_nop_（）;
????????ADCLK=0;//形成一次時鐘脈沖
????????_nop_（）;
????????_nop_（）;
????????dat<<=1;
????????if（i==7）dat|=ADDO;
????}??
????for（i=0;i<8;i++）
????{
????????j=0;
????????j=j|ADDO;//收數(shù)據(jù)
????????ADCLK=1;
????????_nop_（）;
????????_nop_（）;
????????ADCLK=0;//形成一次時鐘脈沖
????????_nop_（）;
????????_nop_（）;
????????j=j<<7;
????????ndat=ndat|j;
????????if（i<7）ndat>>=1;
????}
????ADCS=1;//拉低CS端
????ADCLK=0;//拉低CLK端
????ADDO=1;//拉高數(shù)據(jù)端回到初始狀態(tài)
????dat<<=8;
????dat|=ndat;
????return（dat）;????????????//return?ad?k
}

//啟動I2C總線，即發(fā)送起始條件
void?StartI2C（）
{
	SDA?=?1;	??????????????????????//發(fā)送起始條件數(shù)據(jù)信號
	_nop_（）;
	SCL?=?1;
	_nop_（）;		????????????????????//起始建立時間大于4.7us
	_nop_（）;
	_nop_（）;
	_nop_（）;
	_nop_（）;
	SDA?=?0;	??????????????????????//發(fā)送起始信號
	_nop_（）;
	_nop_（）;
	_nop_（）;
	_nop_（）;
	_nop_（）;
	SCL?=?0;	????????????????????????//時鐘操作
	_nop_（）;
	_nop_（）;
}
//結(jié)束I2C總線，即發(fā)送I2C結(jié)束條件
void?StopI2C（）
{
	SDA?=?0;	????????????????????????//發(fā)送結(jié)束條件的數(shù)據(jù)信號
	_nop_（）;		????

?屬性????????????大小?????日期????時間???名稱
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?????文件????????420??2019-05-27?17:14??說明.txt

?????文件?????102192??2012-04-06?11:25??056?貨車超重監(jiān)測系統(tǒng)\Last?Loaded?電子地秤.DBK

?????文件???????7536??2012-04-06?15:49??056?貨車超重監(jiān)測系統(tǒng)\MCU.c

?????文件???????6376??2005-03-22?15:22??056?貨車超重監(jiān)測系統(tǒng)\STARTUP.A51

?????文件??????18528??2012-04-06?11:38??056?貨車超重監(jiān)測系統(tǒng)\電子地秤

?????文件?????102216??2012-04-06?16:40??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.DSN

?????文件???????5115??2012-04-06?11:38??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.hex

?????文件??????22007??2012-04-06?11:38??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.M51

?????文件???????1013??2012-04-06?15:22??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.Opt

?????文件??????21514??2019-05-26?01:23??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.pdsprj

?????文件????????328??2019-05-26?01:23??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.pdsprj.ANOOP.PC1.workspace

?????文件????????885??2019-05-27?17:40??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.PWI

?????文件???????2147??2012-04-05?16:06??056?貨車超重監(jiān)測系統(tǒng)\電子地秤.Uv2

?????目錄??????????0??2019-05-27?17:40??056?貨車超重監(jiān)測系統(tǒng)

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???????????????290277????????????????????14