#include "reg52.h"
#include "LCD_code.h"
#include "intrins.h"
#include "math.h"
#include "AD7896.h"
#define nop() _nop_()
#define uchar unsigned char
#define uint unsigned int
sbit A0 = 0xb3;
sbit E2 = 0xb4;
sbit E1 = 0xb5;
sbit _WR= P2^6;
sbit LED=P2^3;
sbit up=P1^6;//S1
sbit down=P1^7;//S3
/*
sbit A0 = P2^5;
sbit _WR = P2^6;
sbit E1 = P2^4;
sbit E2 = P2^7;
*/
#define lcd_data P0 //#define lcd_data PORTA //data;
#define set_E1() (E1=1)
#define set_E2() (E2=1)
#define set_A0() (A0=1)
#define set_WR() (_WR=1)
#define clr_E1() (E1=0)
#define clr_E2() (E2=0)
#define clr_A0() (A0=0)
#define clr_WR() (_WR=0)
#define disp_off 0xae
#define disp_on 0xaf
#define disp_start_line 0xc0
#define page_addr_set 0Xb8
#define col_addr_set 0x00
#define status_busy 0x80
#define write_mode 0xee
#define dynamic_driver 0xa4
#define adc_select 0xA0
#define clk32 0xa9
#define clk16 0xa8
#define reset 0xe2
#define uchar unsigned char
#define uint unsigned int
uchar time_counter=0;
uchar key=0;
uchar serial_counter;
bit disp_flag=0;
#define AD_Vol_PER 2.5
#define AD_Loop_PickVol_PER 0.0024414
sbit SCLK=P1^1;
sbit WDI=P1^2;
sbit SDATA=P1^0;
bit r_flag=0;
unsigned char idata serial_buff[77];
void lcd_init(void);
void lcd_clr(void);
void wait_ready(void);
void draw_bmp(uchar col,uchar layer,uchar width,uchar *bmp);
void ASCII2BCD(void);
void **(void);
extern uint read7896(void);
void delay_nu(uchar n)
{
uchar i;
for(i=0;i<n;i++)
{
_nop_();
}
}
uint read7896(void)
{
uint result;
uchar h;
SCLK=0;
WDI=0;
delay_nu(30);
WDI=1;
delay_nu(30);
SDATA=1;
for(h=0;h<16;h++)
{
result<<=1;
SCLK=1;
_nop_();
if(SDATA)result++;
SCLK=0;
}
result=result&0xfff;
return result;
}
void delay(uchar i)
{
uchar j;
for(i=i<<1;i>0;i--)
for(j=0xf3;j>0;j--)
{}
}
void int_t0() interrupt 1 using 1
{
TH0=0X4C;
TL0=0X00;
time_counter++;
if(time_counter==200)
{
time_counter=0;
LED=1;
TR0=0;
}
}
void send_mi(uchar instruction)
{
clr_E2();
set_E1();
wait_ready();
clr_A0();
clr_WR();
nop();
lcd_data=instruction;
nop();
clr_E1();
}
void send_md(uchar c)
{
clr_E2();
set_E1();
wait_ready();
set_A0();
clr_WR();
nop();
lcd_data=c;
nop();
clr_E1();
}
void send_si(uchar instruction)
{
clr_E1();
set_E2();
wait_ready();
clr_A0();
clr_WR();
nop();
lcd_data=instruction;
nop();
clr_E2();
}
void send_sd(uchar c)
{
clr_E1();
set_E2();
wait_ready();
set_A0();
clr_WR();
lcd_data=c;
nop();
clr_E2();
}
void wait_ready(void)
{
clr_A0();
set_WR();
nop();
nop();
//while(lcd_data&status_busy);
}
void lcd_init(void)
{
send_mi(reset);
send_si(reset);
send_mi(disp_off);
send_si(disp_off);
send_mi(dynamic_driver);
send_si(dynamic_driver);
send_mi(clk32);
send_si(clk32);
send_mi(adc_select);
send_si(adc_select);
send_mi(write_mode);
send_si(write_mode);
send_mi(col_addr_set);
send_mi(disp_start_line);
send_si(col_addr_set);
send_si(disp_start_line);
send_mi(disp_on);
send_si(disp_on);
}
void lcd_clr(void)
{
uchar i,page;
for(page=0;page<4;page++)
{
send_mi(page_addr_set|page);
send_si(page_addr_set|page);
send_mi(0);
send_si(0);
for(i=0;i<61;i++)
{
send_md(0x00);
send_sd(0x00);
}
}
}
void set_page(uchar page)
{
send_mi(page_addr_set|page);
send_si(page_addr_set|page);
}
void set_address(uchar address)
{
send_mi(address&0x7f);
send_si(address&0x7f);
}
void putchar_l(uchar c)
{
send_md(c);
}
void putchar_r(uchar c)
{
send_sd(c);
}
void draw_bmp(uchar col,uchar layer,uchar width,uchar *bmp)
{
uchar x;
uchar address; //显存的物理地址
uchar p=0; //
uchar page=0; //上,下两页
uchar window=0; //左,右窗口
if(layer) page=2;
for(x=col;x<col+width;x++)
{
if(x>121)return;
if(x>60)
{
window=1;
address=x%61;
}
else
{
address=x;
}
set_page(page);
set_address(address);
if(window)
putchar_r(bmp[p]);
else
putchar_l(bmp[p]);
set_page(page+1);
set_address(address);
if(window)
putchar_r(bmp[p+width]);
else
putchar_l(bmp[p+width]);
p++;
}
}
void display(uint v)
{
unsigned char row, count;
float tt;
unsigned int tmp ;
int value;
tt=v*AD_Loop_PickVol_PER;
value = tt * 100 + (value > 0 ? 0.5 : -0.5);
tmp = abs(value);
serial_buff[0] = tmp / 10000;
serial_buff[1] = tmp % 10000 / 1000;
serial_buff[2] = tmp % 1000 / 100;
serial_buff[3] = tmp % 100 / 10;
serial_buff[4] = tmp % 10;
draw_bmp(0,1,8,ELAPHT[0]);// 显示“I”
draw_bmp(8,1,8,num[15]);//显示“:”
/*
if(value< 0)
{
draw_bmp(16,1,8,num[14]);//显示“-”
}
else
{
draw_bmp(16,1,8,num[13]);//显示“+”
}
*/
for(count = 0; count != 5; count++)
{
draw_bmp(16+row*8,1,8,num[serial_buff][count]]);//显示读数
row++;
if((count == 2))////定位小数位
{
draw_bmp(16+row*8,1,8,num[10]);
row++;
}
}
if((serial_buff[0]==0)&&(serial_buff[1]==0)&&(serial_buff[2]==0))
{
for(row=0;row !=4;row++)
{
draw_bmp(16+row*8,1,8,num[12]);//消隐设置“空格”
}
if(serial_buff[3]==0)
{
draw_bmp(16+row*8,1,8,num[12]);//消隐设置“空格”
}
draw_bmp(104,1,8,ELAPHT[10]);//显示“m”
draw_bmp(112,1,8,ELAPHT[1]);//显示“A”
}
else
{
draw_bmp(104,1,8,num[12]);//消隐设置“空格”
draw_bmp(112,1,8,ELAPHT[1]);//显示“A”
if(serial_buff[0]==0)
{
row=0;
draw_bmp(16+row*8,1,8,num[12]);//消隐设置“空格”
if(serial_buff[1]==0)
{
row++;
draw_bmp(16 +row*8,1,8,num[12]);//消隐设置“空格”
}
}
}
}
void **(void)
{
uchar i,j,h;
LED = 0;
TR0 = 1;
lcd_clr();
draw_bmp(0,0,112,welcome_1);
draw_bmp(0,1,104,welcome_2);
for(i=0;i<10;i++)for(j=0;j;j++)for(h=1;h;h++);
lcd_clr();
draw_bmp(0,0,112 ,welcome_3);
for(i = 0;i<5;i++)for(j = 1;j;j++)for(h = 1;h;h++);
}
void main (void)
{
int i;
P0 =0xff;
P1 =0xff;
P2 =0xff;
P3 =0xff;
delay(255);
lcd_init();
lcd_init();
lcd_init();
lcd_clr();
**();
//TMOD:GATE|C/! T|M1|MO|GATE|C/! T|M1|M0
// 0 0 1 0 0 0 0 1
TMOD = 0x21;
TH0 = 0X4C;
TL0 = 0x00;
//SCON:SM0|SM1|SM2|REN|TB8|RB8|TI|RI
// 0 1 0 0 0 0 0 0
ET0 = 1;
ES = 1;
EA = 1;
while(1)
{
display(read7896());
}
}
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