定位显示系统msp430程序

王凤英

2018-7-3 05:35:26 1213 显示系统

定位显示系统msp430程序

#include "msp430g2553.h"
#include "math.h"
#define SENDCOMM 0XF8 //0XF1000
#define READCOMM 0XFC //0XF1100
#define SENDDATA 0XFA //0XF1010
#define READDATA 0XFE //0XF1110
/*-----12864串行定义--------*/
#define E_CLK_0 P1OUT &= ~BIT7 //时钟信号为0
#define E_CLK_1 P1OUT |= BIT7 //时钟信号为1
#define RW_SID_0 P1OUT &= ~BIT6 //数据信号为0
#define RW_SID_1 P1OUT |= BIT6 //数据信号为1
/*-----12864工作方式定义-------*/
#define EXTEND_SET 0x34//扩展指令集,绘图显示关
#define DRAW_ON 0x36 //绘图显示开
#define DRAW_OFF 0x34 //绘图显示关
#define BASIC_SET 0x30//基本指令集
#define FOSC 16000000
#define Machine_cycle 1.0/FOSC
#define Sound 340
/*------LCD12864基本函数-------*/
void LCD_send_byte(unsigned char a);
unsigned char LCD_read_byte();
void LCD_write_com(unsigned char comm);
void LCD_write_data(unsigned char lcd_data);
void LCD_set_addr(unsigned char x, unsigned char y);
void LCD_write_string(unsigned char addr_x, unsigned char addr_y, char* str);
void LCD_list_num(unsigned char x,unsigned char y,long number);
void LCD_list_Decimal(unsigned char x,unsigned char y,double Decimal);
void LCD_init(void);
void LCD_write_char(unsigned char x, unsigned char y,unsigned char flag, char data);
void LCD_clear(void);
unsigned char LCD_read_data();
void check_busy();
/*-----LCD12864绘图函数-------*/
void GUI_clear(); //绘图清屏函数 (清屏指令在画图时不能使用)
void GUI_draw_full_picture(const unsigned char *dat);//画满屏图片，横向取模
//void LCD_set_dot(unsigned char x,unsigned char y);//打点程序
//void GUI_hline(unsigned char x0,unsigned char x1,unsigned char y);//画水平线函数,x0,x1为起始点和终点的水平坐标,y为垂直坐标
/*---------键盘函数---------*/
unsigned char getkey(void);
void GPIO_init();
void tiMER0_init();
void TIMER1_init();
void Calculation();
unsigned char num[] = {"0123456789ABCDEF"};
unsigned char key_t,key,t;
unsigned char odd;
unsigned long cap1_2=0;
unsigned long cap2_0=0;
unsigned long cap2_1=0;
unsigned long cap2_4=0;
unsigned int flag=0;
double x=0,y=0;
double X[20];
double Y[20];
void main(void) {
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
DCOCTL=CALDCO_16MHZ;
BCSCTL1=CALBC1_16MHZ;
IFG1 &= ~OFIFG; // Clear OSCFault flag
LCD_init();
LCD_clear();
GPIO_init();
TIMER0_init();
TIMER1_init();
LCD_write_string(1,8,"坐标");
_EINT();//开全局中断
while(1)
{
if(cap1_2!=0)
if(cap2_0!=0)
if(cap2_1!=0)
if(cap2_4!=0)
{
_DINT();
TA0CTL&=~MC_2;
TA1CTL&=~MC_2;
Calculation();
cap1_2=0;
cap2_0=0;
cap2_1=0;
cap2_4=0;
TA0CCR1=0x0000;
TA1CCR0=0x0000;
TA1CCR1=0x0000;
TA1CCR2=0x0000;
P1SEL&=~BIT2;
P1OUT&=~BIT2;
_delay_cycles(10);
P1IE|=BIT2;
_EINT();
}
}
}
//P1口外部中断
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void)
{
if(P1IFG&BIT2)
{
P1OUT^=BIT0;
P1IE&=~BIT2; //1.2禁止中断
P1OUT|=BIT2; //1.2输出
P1SEL|=BIT2; //p1.2外围模块功能
_delay_cycles(10);
TA0CTL|=MC_2+TACLR; //MC2连续计数 TACLR清除
TA1CTL|=MC_2+TACLR;
TA0CCTL1|=CM_2+CCIE;//CM选择捕获 CCIE中断允许
TA1CCTL0|=CM_2+CCIE;
TA1CCTL1|=CM_2+CCIE;
TA1CCTL2|=CM_2+CCIE;
P1IFG&=~BIT2; //P1.2无中断请求
}
}
// Timer A0 interrupt service routine
#pragma vector=TIMER0_A1_VECTOR //A1定时 R0计数
__interrupt void Timer0_A1(void)
{
TA0CCTL1&=~CM_2;
TA0CCTL1&=~CCIE;
P1OUT^=BIT0;
cap1_2=TA0CCR1;
TA0CCTL1&=~CCIFG;
}
// Timer A1 interrupt service routine
#pragma vector=TIMER1_A0_VECTOR
__interrupt void Timer1_A0(void) //A0定时 R1计数
{
TA1CCTL0&=~CM_2;
TA1CCTL0&=~CCIE;
P1OUT^=BIT0;
cap2_0=TA1CCR0;
TA1CCTL0&=~CCIFG;
}
#pragma vector=TIMER1_A1_VECTOR //A1定时 R1计数
__interrupt void Timer1_A1(void)
{
switch(TA1IV)
{
case TA1IV_TACCR1:
{
TA1CCTL1&=~CM_2;
TA1CCTL1&=~CCIE;
P1OUT^=BIT0;
cap2_1=TA1CCR1;
TA1CCTL1&=~CCIFG;
break;
}
case TA1IV_TACCR2:
{
TA1CCTL2&=~CM_2;
TA1CCTL2&=~CCIE;
P1OUT^=BIT0;
cap2_4=TA1CCR2;
TA1CCTL2&=~CCIFG;
break;
}
default:break;
}
}
void GPIO_init()
{
//标志口
P1DIR|=BIT0;
P1OUT&=~BIT0;
_delay_cycles(20);
//p1.2外部中断设置
P1DIR&=~BIT2;//输入，上升沿触发，开中断
P1REN|=BIT2;
P1OUT&=~BIT2;
P1IES&=~BIT2;
P1IE|=BIT2;
P1IFG&=~BIT2;
_delay_cycles(20);
//p2.0 p2.1 p2.4捕获设置
P2DIR&=~BIT0+BIT1+BIT4;//设置P2.0,2.1,2.4为输入
P2REN|=BIT0+BIT1+BIT4;
P2OUT|=BIT0+BIT1+BIT4;
P2SEL|=BIT0+BIT1+BIT4;
_delay_cycles(20);
}
void TIMER0_init()
{
TA0CTL |= TASSEL_2+MC_0+TACLR;
TA0CCTL1|=CCIS_0+SCS+CAP+CM_0;
}
void TIMER1_init()
{
TA1CTL |= TASSEL_2+MC_0+TACLR;
TA1CCTL0|=CCIS_0+SCS+CAP+CM_0;
TA1CCTL1|=CCIS_0+SCS+CAP+CM_0;
TA1CCTL2|=CCIS_0+SCS+CAP+CM_0;
}
void Calculation()
{
long a,b,c,d;
double DA,DB,DC,DD;
double x1,x2,y1,y2;
DA=Sound*cap1_2*Machine_cycle*100.0;
DB=Sound*cap2_0*Machine_cycle*100.0;
DC=Sound*cap2_1*Machine_cycle*100.0;
DD=Sound*cap2_4*Machine_cycle*100.0;
x1=(DD*DD-DC*DC+250000*1.0)/(1000*1.0);
x2=(DA*DA-DB*DB+250000*1.0)/(1000*1.0);
y1=(DB*DB-DC*DC+122500*1.0)/(700*1.0);
y2=(DA*DA-DD*DD+122500*1.0)/(700*1.0);
if(flag<20)
{
X[flag]=(x1+x2)*1.0/2.0;
Y[flag]=(y1+y2)*1.0/2.0;
flag++;
}
else
{
for(flag=0;flag<20;flag++)
{
x=x+X[flag];
y=y+Y[flag];
}
x=x*1.0/20.0;
y=y*1.0/20.0;
LCD_list_Decimal(2,4,x);
LCD_list_Decimal(3,4,y);
flag=0;
}
// a=cap1_2-cap1_2;
// b=cap2_0-cap1_2;
// c=cap2_1-cap1_2;
// d=cap2_4-cap1_2;
// LCD_list_num(1,1,a);
// LCD_list_num(2,1,b);
// LCD_list_num(3,1,c);
// LCD_list_num(4,1,d);
LCD_list_num(1,1,cap1_2);
LCD_list_num(2,1,cap2_0);
LCD_list_num(3,1,cap2_1);
LCD_list_num(4,1,cap2_4);
}
/*---------键盘函数---------*/
unsigned char getkey(void) //获得键盘的值
{
P1REN |= BIT3 + BIT4 + BIT5;
P1DIR &= ~(BIT3 + BIT4 + BIT5);
P1OUT |= BIT3 + BIT4 + BIT5; //00111000
t = (P1IN & 0x38)/8;
if (t == 0x07) {
P1REN |= BIT4 + BIT5;
P1REN &= ~BIT3;
P1DIR |= BIT3 + BIT4 + BIT5;
P1OUT |= BIT4 + BIT5; //00110000
P1OUT &= ~BIT3;
P1DIR &= ~(BIT4 + BIT5);
t = P1IN & 0x038;
t = (t/8) / 2 + 7;
if (t == 0x0a) {
P1REN |= BIT5 + BIT3;
P1REN &= ~BIT4;
P1DIR |= BIT3 + BIT4 + BIT5;
P1OUT |= BIT3+BIT5; //00101000
P1OUT &= ~BIT4;
P1DIR &= ~(BIT3 + BIT5);
t = P1IN & 0x38;
t = ((t/8) + 1) / 2 + 10;
if (t == 0x0d) {
P1REN |= BIT3 + BIT4;
P1REN &= ~BIT5;
P1DIR |= BIT3 + BIT4 + BIT5;
P1OUT |= BIT3+BIT4; //00011000
P1OUT &= ~BIT5;
P1DIR &= ~(BIT3 + BIT4);
t = P1IN & 0x38;
t =(t/8)+13;
}
}
}
return (t);
}
void show_key()//显示键盘的值
{
key_t=getkey();
if(key_t!=16)
{
_delay_cycles(20000);
key=getkey();
if(key==key_t)
{
while(1)
{
key_t=getkey();
if(key_t==16)
break;
}
}
else
{
key=16;
}
if(key==15)
LCD_clear();
else
LCD_write_char(1, 2,0,num[key]);
_delay_cycles(200000);
}
}
/*------LCD12864基本函数-------*/
void check_busy()
{
do
{
LCD_send_byte(READCOMM);
}
while(LCD_read_byte()&0x80);
}
void LCD_send_byte(unsigned char a) {
unsigned char i=0;
for (i = 8; i > 0; i--) {
if (a & (0x01 << (i - 1)))
RW_SID_1;
else
RW_SID_0;
_delay_cycles(100);
E_CLK_1;
_delay_cycles(100);
E_CLK_0;
_delay_cycles(100);
}
}
unsigned char LCD_read_byte()
{
unsigned char i,j,temp1=0;
_delay_cycles(100);
P1DIR&=~BIT6;
RW_SID_1;
for(j=0;j<2;j++)
{
for(i=0;i<4;i++)
{
if(P1IN&BIT6) temp1|=0x01;
else temp1&=~0x01;
temp1<<=1;
E_CLK_0;
_delay_cycles(100);
E_CLK_1;
_delay_cycles(100);
E_CLK_0;
_delay_cycles(100);
}
for(i=0;i<4;i++)
{
E_CLK_0;
_delay_cycles(100);
E_CLK_1;
_delay_cycles(100);
E_CLK_0;
_delay_cycles(100);
}
}
P1DIR|=BIT6;
return temp1;
}
unsigned char LCD_read_data()
{
unsigned char temp;
LCD_send_byte(READDATA);
_delay_cycles(1000);
temp=LCD_read_byte();
return temp;
}
void LCD_write_com(unsigned char comm) {
unsigned char temp;
check_busy();
_delay_cycles(100);
LCD_send_byte(SENDCOMM); //MCU to LCD, command
temp = comm & 0XF0;
LCD_send_byte(temp); //send high 4 bits
temp = ((comm & 0X0F) << 4) & 0XF0;
LCD_send_byte(temp); //send low 4 bits
_delay_cycles(100);
}
void LCD_write_data(unsigned char lcd_data) //写数据
{
unsigned char temp;
check_busy();
_delay_cycles(100);
LCD_send_byte(SENDDATA);
temp = lcd_data & 0xf0;
LCD_send_byte(temp);
temp = (lcd_data & 0X0F) << 4;
LCD_send_byte(temp);
_delay_cycles(100);
}
void LCD_set_addr(unsigned char x, unsigned char y) //设置显示位置
{
if(y%2==0) odd=0;
else odd=1;
y=(y+1)/2;
switch (x) {
case 1:
LCD_write_com(0X7F + y);
break;
case 2:
LCD_write_com(0X8F + y);
break;
case 3:
LCD_write_com(0X87 + y);
break;
case 4:
LCD_write_com(0X97 + y);
break;
default:
break;
}
}
void LCD_write_char(unsigned char x, unsigned char y,unsigned char flag, char data)
{
LCD_set_addr(x, y);
if(odd==0)
{
if(flag==1)
{
LCD_read_data();
LCD_set_addr(x,y);
LCD_write_data(data);
}
}
LCD_write_data(data);
}
void LCD_write_string(unsigned char addr_x, unsigned char addr_y, char* str) {
unsigned char LCD_temp;
LCD_set_addr(addr_x, addr_y);
if(odd==0)
{
LCD_read_data();
LCD_set_addr(addr_x,addr_y);
LCD_write_data(*str++);
}
LCD_temp = *str;
while (LCD_temp != 0x00) {
LCD_write_data(LCD_temp);
LCD_temp = *(++str);
}
}
void LCD_list_num(unsigned char x,unsigned char y,long number)
{
unsigned char pos;
switch (x)
{
case 1:
x=0x7F;
break;
case 2:
x=0x8F;
break;
case 3:
x=0x87;
break;
case 4:
x=0x97;
break;
}
pos=x+y;
LCD_write_com(pos);
if(number<=-100000&&number>-1000000)
{
LCD_write_data(0x30+(-number)/100000);
LCD_write_data(0x30+((-number)/10000)%10);
LCD_write_data(0x30+((-number)/1000)%10);
LCD_write_data(0x30+((-number)/100)%10);
LCD_write_data(0x30+((-number)/10)%10);
LCD_write_data(0x30+(-number)%10);
}
if(number<=-10000&&number>-100000)
{
LCD_write_data(0x30+(-number)/10000);
LCD_write_data(0x30+((-number)/1000)%10);
LCD_write_data(0x30+((-number)%1000)/100);
LCD_write_data(0x30+((-number)%100)/10);
LCD_write_data(0x30+(-number)%10);
}
if(number<=-1000&&number>-10000)
{
LCD_write_data('-');
LCD_write_data(0x30+(-number)/1000);
LCD_write_data(0x30+((-number)/100)%10);
LCD_write_data(0x30+((-number)%100)/10);
LCD_write_data(0x30+(-number)%10);
}
if(number<=-100&&number>-1000)
{
LCD_write_data('-');
LCD_write_data(0x30+(-number)/100);
LCD_write_data(0x30+((-number)/10)%10);
LCD_write_data(0x30+(-number)%10);
}
if(number<=-10&&number>-100)
{
LCD_write_data('-');
LCD_write_data(0x30+(-number)/10);
LCD_write_data(0x30+(-number)%10);
}
if(number<0&&number>-10)
{
LCD_write_data('-');
LCD_write_data(0x30+(-number)%10);
}
if(number>=0&&number<10)
{
LCD_write_data(0x30+number%10);
}
if(number>=10&&number<100)
{
LCD_write_data(0x30+number/10);
LCD_write_data(0x30+number%10);
}
if(number>=100&&number<1000)
{
LCD_write_data(0x30+number/100);
LCD_write_data(0x30+(number/10)%10);
LCD_write_data(0x30+number%10);
}
if(number>=1000&&number<10000)
{
LCD_write_data(0x30+number/1000);
LCD_write_data(0x30+(number/100)%10);
LCD_write_data(0x30+(number%100)/10);
LCD_write_data(0x30+number%10);
}
if(number>=10000&&number<100000)
{
LCD_write_data(0x30+number/10000);
LCD_write_data(0x30+(number/1000)%10);
LCD_write_data(0x30+(number%1000)/100);
LCD_write_data(0x30+(number%100)/10);
LCD_write_data(0x30+number%10);
}
if(number>=100000&&number<1000000)
{
LCD_write_data(0x30+number/100000);
LCD_write_data(0x30+(number/10000)%10);
LCD_write_data(0x30+(number/1000)%10);
LCD_write_data(0x30+(number/100)%10);
LCD_write_data(0x30+(number/10)%10);
LCD_write_data(0x30+number%10);
}
if(number>=1000000&&number<10000000)
{
LCD_write_data(0x30+number/1000000);
LCD_write_data(0x30+(number/100000)%10);
LCD_write_data(0x30+(number/10000)%10);
LCD_write_data(0x30+(number/1000)%10);
LCD_write_data(0x30+(number/100)%10);
LCD_write_data(0x30+(number/10)%10);
LCD_write_data(0x30+number%10);
}
}
void LCD_list_Decimal(unsigned char x,unsigned char y,double Decimal)
{
unsigned char pos;
double Deci;
unsigned long num;
num=(unsigned long)Decimal;
Deci=Decimal-num;
switch (x)
{
case 1:
x=0x7F;
break;
case 2:
x=0x8F;
break;
case 3:
x=0x87;
break;
case 4:
x=0x97;
break;
}
pos=x+y;
LCD_write_com(pos);
if(Decimal>=0 && Decimal<1)
{
LCD_write_data(0x30+0);
LCD_write_data('.');
LCD_write_data(0x30+(int)(Deci*10)%10);
LCD_write_data(0x30+(int)(Deci*100)%10);
LCD_write_data(0x30+(int)(Deci*1000)%10);
LCD_write_data(0x30+(int)(Deci*10000)%10);
LCD_write_data(0x30+(int)(Deci*100000)%10);
}
if(Decimal>=1 && Decimal<10)
{
LCD_write_data(0x30+num%10);
LCD_write_data('.');
LCD_write_data(0x30+(int)(Deci*10)%10);
LCD_write_data(0x30+(int)(Deci*100)%10);
LCD_write_data(0x30+(int)(Deci*1000)%10);
LCD_write_data(0x30+(int)(Deci*10000)%10);
LCD_write_data(0x30+(int)(Deci*100000)%10);
}
if(Decimal>=10 && Decimal<100)
{
LCD_write_data(0x30+num/10);
LCD_write_data(0x30+num%10);
LCD_write_data('.');
LCD_write_data(0x30+(int)(Deci*10)%10);
LCD_write_data(0x30+(int)(Deci*100)%10);
LCD_write_data(0x30+(int)(Deci*1000)%10);
LCD_write_data(0x30+(int)(Deci*10000)%10);
LCD_write_data(0x30+(int)(Deci*100000)%10);
}
if(Decimal>=100 && Decimal<1000)
{
LCD_write_data(0x30+num/100);
LCD_write_data(0x30+num/10%10);
LCD_write_data(0x30+num%10);
LCD_write_data('.');
LCD_write_data(0x30+(int)(Deci*10)%10);
LCD_write_data(0x30+(int)(Deci*100)%10);
LCD_write_data(0x30+(int)(Deci*1000)%10);
LCD_write_data(0x30+(int)(Deci*10000)%10);
LCD_write_data(0x30+(int)(Deci*100000)%10);
}
if(Decimal>=1000 && Decimal<10000)
{
LCD_write_data(0x30+num/1000);
LCD_write_data(0x30+num/100%10);
LCD_write_data(0x30+num/10%10);
LCD_write_data(0x30+num%10);
LCD_write_data('.');
LCD_write_data(0x30+(int)(Deci*10)%10);
LCD_write_data(0x30+(int)(Deci*100)%10);
LCD_write_data(0x30+(int)(Deci*1000)%10);
LCD_write_data(0x30+(int)(Deci*10000)%10);
LCD_write_data(0x30+(int)(Deci*100000)%10);
}
}
void LCD_init(void) {
P1DIR |= BIT6 + BIT7;
_delay_cycles(2000);
LCD_write_com(0x30); //一次送8位数据
LCD_write_com(0x0C); //整体显示，游标off，游标位置off
LCD_write_com(0x01); //清DDRAM
LCD_write_com(0x02); //DDRAM地址归位
LCD_write_com(0x80); //设定DDRAM 7位地址000，0000到地址计数器AC
}
void LCD_clear(void){
LCD_write_com(0x01);
}
/*-----LCD12864绘图函数-------*/
void GUI_clear() //绘图清屏函数 (清屏指令在画图时不能使用)
{
unsigned char i,j,k;
LCD_write_com(EXTEND_SET);//扩展指令集，8位数据传输，绘图开
LCD_write_com(DRAW_OFF); //关闭绘图显示
for(i=0;i<2;i++) //分上下两屏写
{
for(j=0;j<32;j++)
{
LCD_write_com(0x80+j); //写y坐标
_delay_cycles(10);
if(i==0)//写x坐标
{
LCD_write_com(0x80);
_delay_cycles(100);
}
else
{
LCD_write_com(0x88);
_delay_cycles(100);
}
for(k=0;k<16;k++) //写一整行数据
{
LCD_write_data(0x00); //写高字节
LCD_write_data(0x00); //写低字节
_delay_cycles(100);
}
}
}
LCD_write_com(DRAW_ON); //打开绘图显示
LCD_write_com(BASIC_SET);//打开基本指令集
}
void GUI_draw_full_picture(const unsigned char *dat)//画满屏图片，横向取模
{
unsigned char i,j,k;
unsigned char GDRAMAddrX=0x80;
unsigned char GDRAMAddrY=0x80;
for(i=0;i<2;i++)
{
for(j=0;j<32;j++)
{
for(k=0;k<8;k++)
{
LCD_write_com(DRAW_OFF);
LCD_write_com(GDRAMAddrY+j);
LCD_write_com(GDRAMAddrX+k);
LCD_write_data(*dat++);
LCD_write_data(*dat++);
}
}
GDRAMAddrX=0x88;
}
LCD_write_com(DRAW_ON);
LCD_write_com(BASIC_SET);
}
/*
void LCD_set_dot(unsigned char x,unsigned char y)//打点程序
{
unsigned char x_byte,x_bit; //确定在坐标的那一字节哪一位
unsigned char y_byte,y_bit; //确定在坐标的哪一屏哪一行
unsigned char temph,templ; //定义两个临时变量，用于存放读出来的数据
LCD_write_com(EXTEND_SET); //扩展指令集
LCD_write_com(DRAW_OFF);//绘图显示关闭
x_byte=x/16;
x_bit=x%16;
y_byte=y/32;
y_bit=y%32;
LCD_write_com(EXTEND_SET);
LCD_write_com(0x80+y_bit);
LCD_write_com(0x80+x_byte+8*y_byte);
LCD_read_byte();
temph=LCD_read_byte();
templ=LCD_read_byte();
_delay_cycles(10);
LCD_write_com(0x80+y_bit);
LCD_write_com(0x80+x_byte+8*y_byte);
_delay_cycles(10);
if(x_bit<8)
{
LCD_write_data(temph|(0x01<<(7-x_bit)));
LCD_write_data(templ);
}
else
{
LCD_write_data(temph);
LCD_write_data(templ|(0x01<<(15-x_bit)));
}
LCD_write_com(DRAW_ON);
LCD_write_com(BASIC_SET);
}
*/