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| /\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
--------------------------------\*/
#include<reg52.h>
#include <I2C.H>
#define uchar unsigned char
#define uint unsigned int
#define PCF8591 0x90 //PCF8591 地址
unsigned char code tab[]= {0xfe,0xfd,0xfb,0xf7,
0xef,0xdf,0xbf,0x7f
};
unsigned char code graph[11][8]= {
{0x0,0x18,0x24,0x24,0x24,0x24,0x24,0x18},//0
{0x0,0x8,0x18,0x8,0x8,0x8,0x8,0x8},//1
{0x0,0x18,0x24,0x24,0x8,0x10,0x20,0x3C},//2
{0x0,0x18,0x24,0x4,0x8,0x24,0x24,0x18},//3
{0x0,0x8,0x8,0x18,0x28,0x3C,0x8,0x8},//4
{0x0,0x3C,0x20,0x38,0x4,0x4,0x24,0x18},//5
{0x0,0x18,0x24,0x20,0x38,0x24,0x24,0x18},//6
{0x0,0x3C,0x24,0x4,0x8,0x10,0x10,0x10},//7
{0x0,0x18,0x24,0x24,0x18,0x24,0x24,0x18},//8
{0x0,0x18,0x24,0x24,0x1C,0x4,0x24,0x18},//9
{0x4C,0xD2,0x52,0x52,0x52,0x52,0x52,0xEC},//10
};
unsigned char count;
unsigned char cnta;
unsigned char AD_CHANNEL;
unsigned int D[4];
void delay11(unsigned int cnt)
{
while(--cnt);
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
ADC发送字节[命令]数据函数
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
bit ISendByte(unsigned char sla,unsigned char c)
{
Start\_I2c(); //启动总线
SendByte(sla); //发送器件地址
if(ack==0)return(0);
SendByte(c); //发送数据
if(ack==0)return(0);
Stop\_I2c(); //结束总线
return(1);
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
ADC读字节数据函数
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
unsigned char IRcvByte(unsigned char sla)
{ unsigned char c;
Start\_I2c(); //启动总线
SendByte(sla+1); //发送器件地址
if(ack==0)return(0);
c=RcvByte(); //读取数据0
Ack\_I2c(1); //发送非就答位
Stop\_I2c(); //结束总线
return(c);
}
//\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
main()
{ unsigned char jj,kk,ll,bb,cc,dd;
double Data; //
double V; //转化成的电压值
while(1)
{
ISendByte(PCF8591,0x40);
Data=IRcvByte(PCF8591); //ADC0 模数转换1
V=Data\*5/256;
D[0]=V\*100;
for(bb=0; bb<10; bb++) {
for(jj=0; jj<8; jj++) //共要扫描八行
{
P1=graph[D[0]/100][jj]; //送字模数据
P2=tab[jj];
delay11(200); //选中第一行
P2=0xff;
delay11(500);
}
delay11(500);
}
for(bb=0; bb<10; bb++) {
for(jj=0; jj<8; jj++) //共要扫描八行
{
P1=0x06;
P2=0x7f;
delay11(500);
P2=0xbf;
delay11(500);
}
delay11(500);
}
for(cc=0; cc<10; cc++) {
for(kk=0; kk<8; kk++) //共要扫描八行
{
P1=graph[D[0]%100/10][kk]; //送字模数据
P2=tab[kk];
delay11(200); //选中第一行
P2=0xff;
delay11(500);
}
delay11(500);
}
for(dd=0; dd<10; dd++)
{
for(ll=0; ll<8; ll++) //共要扫描八行
{
P1=graph[D[0]%10][ll]; //送字模数据
P2=tab[ll];
delay11(200); //选中第一行
P2=0xff;
delay11(500);
}
delay11(500);
}
}
}
|
