#include"15.h"
#define uint unsigned int
#define uchar unsigned char
sbit lcden=P2^7;
sbit lcdrw=P2^6;
sbit lcdrs=P2^5;
#define CCP_S0 0x10 //P_SW1.4
#define CCP_S1 0x20 //P_SW1.5
sbit s1=P2^0;
sbit s2=P2^1;
float zhankongbi=0x80;
uchar code table1[]="zkb";
void display1();
void pwminit();
void keyscan();
void delay(uint z)
{
uint i,j;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
void pwminit()
{
CMOD=0x02;
// CCON=0X00;
CL=0x00;
CH=0x00;
// PCA_PWM0=0x00;
CCAPM0=0x42;
CCAP0H=0xff;
CCAP0L=0xff;
CR=1;
}
void pwmshe(uchar t)//這是占空比調節函數
{
CCAP0H=t;
CCAP0L=t;
}
void write_com(uchar com)// 液晶寫命令函數
{
lcdrs=0;
lcdrw=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_date(uchar date)//液晶寫數據函數
{
lcdrs=1;
lcdrw=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init() //初始化函數
{
uchar num;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);//設置顯示初始坐標
for(num=0;num<3;num++)
{
write_date(table1[num]);
delay(5);
}
}
void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P6M0 = 0x00;
P6M1 = 0x00;
P7M0 = 0x00;
P7M1 = 0x00;
ACC = P_SW1;
ACC &= ~(CCP_S0 | CCP_S1); //CCP_S0=0 CCP_S1=0
P_SW1 = ACC; //(P1.2/ECI, P1.1/CCP0, P1.0/CCP1, P3.7/CCP2)
// ACC = P_SW1;
// ACC &= ~(CCP_S0 | CCP_S1); //CCP_S0=1 CCP_S1=0
// ACC |= CCP_S0; //(P3.4/ECI_2, P3.5/CCP0_2, P3.6/CCP1_2, P3.7/CCP2_2)
// P_SW1 = ACC;
// ACC = P_SW1;
// ACC &= ~(CCP_S0 | CCP_S1); //CCP_S0=0 CCP_S1=1
// ACC |= CCP_S1; //(P2.4/ECI_3, P2.5/CCP0_3, P2.6/CCP1_3, P2.7/CCP2_3)
// P_SW1 = ACC;
init();
pwminit();
display1();
while(1) //進入主程序大循環
{
keyscan();
display1();
pwmshe(zhankongbi);
}
}
void keyscan()
{
if(s1==0)
{
delay(60);
if(s1==0)
{
while(!s1);
zhankongbi=zhankongbi-10;
}
}
if(s2==0)
{
delay(60);
if(s2==0)
{
while(!s2);
zhankongbi=zhankongbi+10;
if(zhankongbi>256)
zhankongbi=0x80;
}
}
}
void display1(float m)
{
float a=0,c=0;
uchar b=0;
m=zhankongbi;
m=(float)m*100/256;
a=m/100;
b=(uchar)m%100/10;
c=(uchar)m%10;
write_com(0x84);
write_date(a+0x30);
write_com(0x85);
write_date(b+0x30);
write_com(0x86);
write_date(c+0x30);
write_com(0x87);
write_date('%');
write_com(0x83);
write_date(':');
}
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