基于stc89c51的示波器制作程序,仿真,原理图分享 -

#include "lcd12864.h"
#include "osc.h"
#include "common.h"
#include "dots.h"
unsigned char val_vdiv=2; //Y轴电压标度索引0～5
unsigned char val_tdiv=0; //X轴时间标度索引0～5
unsigned char acdc_flag=0; //交流直流档切换
unsigned char run_flag=0; //运行停止切换
unsigned char pointxA;
unsigned char pointxB;
unsigned char pointyA;
unsigned char pointyB;
unsigned char xdata da_buffer[DATA_SIZE];
unsigned char da_finish;
char movx=0; //水平移动
char movy=0; //垂直移动
unsigned char code vdiv [] = {1,2,5,10,20,50};//电压标度索引是0到5,实际是0.1到5.0
unsigned char code tdiv [] = {8,10,20,50,100};//扫描时间标度索引是0到5
void disp_ypoint(void)
{
unsigned char dat[ALL_LINE];
unsigned char j,i;
for(j=0;j<3;j++) {
for(i=0;i<7;i++) dat[i] = 0;
if(j==0) {
dat[(pointyA-2)/8] |= 0x01<<((pointyA-2)%8);
dat[(pointyA-1)/8] |= 0x01<<((pointyA-1)%8);
dat[(pointyA )/8] |= 0x01<<((pointyA )%8);
dat[(pointyA+1)/8] |= 0x01<<((pointyA+1)%8);
dat[(pointyA+2)/8] |= 0x01<<((pointyA+2)%8);
dat[(pointyB-2)/8] |= 0x01<<((pointyB-2)%8);
dat[(pointyB-1)/8] |= 0x01<<((pointyB-1)%8);
dat[(pointyB )/8] |= 0x01<<((pointyB )%8);
dat[(pointyB+1)/8] |= 0x01<<((pointyB+1)%8);
dat[(pointyB+2)/8] |= 0x01<<((pointyB+2)%8);
/*上下平移标志*/
if(movy== (HEIGHT/2)) {
dat[(HEIGHT/2+4-movy)/8] |= 0x01<<((HEIGHT/2+4-movy)%8);
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
}
else if(movy==-(HEIGHT/2)) {
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
dat[(HEIGHT/2+6-movy)/8] |= 0x01<<((HEIGHT/2+6-movy)%8);
}
else {
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
}
/*写LCD，刷新显示*/
for(i=0;i<ALL_LINE;i++) {
lcd_cmd_wr(SETY+i,0);
lcd_cmd_wr(SETX+ZEROX-4,0);
lcd_data_wr(dat[i],0);
}
}
else if(j==1){
dat[(pointyA-1)/8] |= 0x01<<((pointyA-1)%8);
dat[(pointyA )/8] |= 0x01<<((pointyA )%8);
dat[(pointyA+1)/8] |= 0x01<<((pointyA+1)%8);
dat[(pointyB-1)/8] |= 0x01<<((pointyB-1)%8);
dat[(pointyB )/8] |= 0x01<<((pointyB )%8);
dat[(pointyB+1)/8] |= 0x01<<((pointyB+1)%8);
/*上下平移标志*/
dat[(HEIGHT/2+4-movy)/8] |= 0x01<<((HEIGHT/2+4-movy)%8);
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
dat[(HEIGHT/2+6-movy)/8] |= 0x01<<((HEIGHT/2+6-movy)%8);
/*写LCD，刷新显示*/
for(i=0;i<ALL_LINE;i++) {
lcd_cmd_wr(SETY+i,0);
lcd_cmd_wr(SETX+ZEROX-3,0);
lcd_data_wr(dat[i],0);
}
}
else {
dat[(pointyA)/8] |= 0x01<<((pointyA)%8);
dat[(pointyB)/8] |= 0x01<<((pointyB)%8);
/*上下平移标志*/
if(movy==(HEIGHT/2)) {
dat[(HEIGHT/2+4-movy)/8] |= 0x01<<((HEIGHT/2+4-movy)%8);
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
}
else if(movy==-(HEIGHT/2)) {
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
dat[(HEIGHT/2+6-movy)/8] |= 0x01<<((HEIGHT/2+6-movy)%8);
}
else {
dat[(HEIGHT/2+5-movy)/8] |= 0x01<<((HEIGHT/2+5-movy)%8);
}
/*写LCD，刷新显示*/
for(i=0;i<ALL_LINE;i++) {
lcd_cmd_wr(SETY+i,0);
lcd_cmd_wr(SETX+ZEROX-2,0);
lcd_data_wr(dat[i],0);
}
}
}
}
//LCD波形显示区
void disp(unsigned char x,unsigned char y,char l)
{
unsigned char dat[ALL_LINE],j,k;
x += ZEROX;
y = ZEROY-1-y;//1是修正1行空白行
dat[0] = 0x10;
dat[1] = 0x0;
dat[2] = 0x0;
dat[3] = 0x0;
dat[4] = 0x0;
dat[5] = 0x0;
dat[6] = 0x40;
if((x+1)%5==0) {
dat[3] |= 0x20; /*水平中心线*/
dat[pointyA/8] |= 0x01<<pointyA%8; /*水平测量线A*/
dat[pointyB/8] |= 0x01<<pointyB%8; /*水平测量线B*/
}
/*上下边框格点*/
//if(((x-ZEROX) ==WIDTH/2-1)||((x-ZEROX)%5==0)||((x-ZEROX) == WIDTH/2+1)) {
if((x-ZEROX)%5==0) {
dat[0] |= 0x20;dat[ALL_LINE-1] |= 0x20;
}
/*垂直测量线格点和垂直中心线*/
if(((x-ZEROX) == pointxA)||((x-ZEROX) == pointxB)||((x-ZEROX) == WIDTH/2)) {
dat[0] |= 0x10;
dat[1] |= 0x42;
dat[2] |= 0x08;
dat[3] |= 0x21;
dat[4] |= 0x84;
dat[5] |= 0x10;
dat[6] |= 0x42;
}
/*顶端测量线三角符号*/
if(x-ZEROX==(pointxA-2)) dat[0] |= 0x01;
if(x-ZEROX==(pointxA-1)) dat[0] |= 0x03;
if(x-ZEROX==(pointxA )) dat[0] |= 0x07;
if(x-ZEROX==(pointxA+1)) dat[0] |= 0x03;
if(x-ZEROX==(pointxA+2)) dat[0] |= 0x01;
if(x-ZEROX==(pointxB-2)) dat[0] |= 0x01;
if(x-ZEROX==(pointxB-1)) dat[0] |= 0x03;
if(x-ZEROX==(pointxB )) dat[0] |= 0x07;
if(x-ZEROX==(pointxB+1)) dat[0] |= 0x03;
if(x-ZEROX==(pointxB+2)) dat[0] |= 0x01;
/*顶端中点左右平移标志*/
if(movx == (WIDTH/2-1)) {
if(x-ZEROX==WIDTH/2-movx-1) dat[0] |= 0x07;
if(x-ZEROX==WIDTH/2-movx ) dat[0] |= 0x07;
if(x-ZEROX==WIDTH/2-movx+1) dat[0] |= 0x02;
}
else if(movx==-(WIDTH/2-1)) {
if(x-ZEROX==WIDTH/2-movx-1) dat[0] |= 0x02;
if(x-ZEROX==WIDTH/2-movx ) dat[0] |= 0x07;
if(x-ZEROX==WIDTH/2-movx+1) dat[0] |= 0x07;
}
else {
if(x-ZEROX==WIDTH/2-movx-1) dat[0] |= 0x02;
if(x-ZEROX==WIDTH/2-movx) dat[0] |= 0x07;
if(x-ZEROX==WIDTH/2-movx+1) dat[0] |= 0x02;
}
/*左边框*/
if(x==ZEROX) {
dat[0] = 0xf0;
dat[1] = 0xff;
dat[2] = 0xff;
dat[3] = 0xff;
dat[4] = 0xff;
dat[5] = 0xff;
dat[6] = 0x7f;
}
/*左边框上格点*/
if(x==ZEROX+1) {
dat[0] |= 0x10;
dat[1] |= 0x42;
dat[2] |= 0x08;
dat[3] |= 0x21;
dat[4] |= 0x84;
dat[5] |= 0x10;
dat[6] |= 0x42;
}
/*右边框*/
if(x==ZEROX+WIDTH-1) {
dat[0] = 0xf0;
dat[1] = 0xff;
dat[2] = 0xff;
dat[3] = 0xff;
dat[4] = 0xff;
dat[5] = 0xff;
dat[6] = 0x7f;
}
/*右边框格点*/
if(x==ZEROX+WIDTH-2) {
dat[0] |= 0x10;
dat[1] |= 0x42;
dat[2] |= 0x08;
dat[3] |= 0x21;
dat[4] |= 0x84;
dat[5] |= 0x10;
dat[6] |= 0x42;
}
/*波形描点*/
if(l==0) dat[(y)/8] |= 0x01<<((y)%8);
else if(l>0) {
for(j=0;j<l+1;j++) { //+1多描1点，波形更粗壮
k=((y+j)/8);
if(k>6) k=6;
if(k==0) dat[0] |= (0x01<<((y+j)%8))&0xe0;
else if(k==6) dat[6] |= (0x01<<((y+j)%8))&0x3f;
else dat[k] |= 0x01<<((y+j)%8);
}
}
else for(j=0;j<(-l)+1;j++) {
k=((y-j)/8);
if(k>6) k=6;
if(k==0) dat[0] |= (0x01<<((y-j)%8))&0xf0;
else if(k==6) dat[6] |= (0x01<<((y-j)%8))&0x3f;
else dat[k] |= 0x01<<((y-j)%8);
}
/*写入LCD*/
if(x<64) {
for(j=0;j<ALL_LINE;j++) {
lcd_cmd_wr(SETY+j,0);
lcd_cmd_wr(SETX+x,0);
lcd_data_wr(dat[j],0);
}
}
else {
x-=64;
for(j=0;j<ALL_LINE;j++) {
lcd_cmd_wr(SETY+j,1);
lcd_cmd_wr(SETX+x,1);
lcd_data_wr(dat[j],1);
}
}
}
void disp_vdiv(void)
{
unsigned int tmp;
tmp = vdiv[val_vdiv];
/*y轴电压标度*/
lcd12864_put_xystr(0,7,4,Num+(tmp/10)*4);
lcd12864_put_xystr(5,7,1,Num+10*4);
lcd12864_put_xystr(7,7,4,Num+(tmp%10)*4);
tmp = tdiv[val_tdiv];
/*x轴时间标度*/
if(tmp<100) {
lcd12864_put_clr(23,7,8);
lcd12864_put_xystr(23,7,4,Num+(tmp/10)*4);
lcd12864_put_xystr(28,7,1,Num+10*4);
lcd12864_put_xystr(30,7,4,Num+(tmp%10)*4);
}
else {
lcd12864_put_clr(23,7,8);
lcd12864_put_xystr(25,7,4,Num+1*4);
lcd12864_put_xystr(30,7,4,Num+0*4);
}
/*AC，DC标识*/
lcd12864_put_xystr(47,7,12,ac_dc+acdc_flag*12);//0=ac,1=dc
/*RUN,PAUSE标识*/
lcd12864_put_xystr(60,7,17,run_paus+run_flag*17);//0=run,1=paus
tmp=(pointyB-pointyA)*vdiv[val_vdiv];
tmp/=5;
if(tmp < 100) {
/*测量电压*/
lcd12864_put_clr(79,7,11);
lcd12864_put_xystr(79,7,4,Num + (tmp/10)*4);
lcd12864_put_xystr(84,7,1,Num + 10*4);
lcd12864_put_xystr(86,7,4,Num + (tmp%10)*4);
}
else {
lcd12864_put_clr(79,7,11);
lcd12864_put_xystr(79,7,4,Num+ (tmp/100)*4);
lcd12864_put_xystr(85,7,4,Num+ (tmp/10 %10)*4);
}
tmp=50000/(pointxB-pointxA)/tdiv[val_tdiv];
/*测量频率*/
lcd12864_put_clr(99,7,20);
if(tmp<10) {
lcd12864_put_xystr(114,7,4,Num+ (tmp%10)*4);
}
else if(tmp <100) {
lcd12864_put_xystr(109,7,4,Num+ (tmp/10%10)*4);
lcd12864_put_xystr(114,7,4,Num+ (tmp%10)*4);
} else if(tmp <1000) {
lcd12864_put_xystr(104,7,4,Num+ (tmp/100)*4);
lcd12864_put_xystr(109,7,4,Num+ (tmp/10%10)*4);
lcd12864_put_xystr(114,7,4,Num+ (tmp%10)*4);
}
else {
lcd12864_put_xystr(99,7,4,Num+ (tmp/1000)*4);
lcd12864_put_xystr(104,7,4,Num+ (tmp/100%10)*4);
lcd12864_put_xystr(109,7,4,Num+ (tmp/10%10)*4);
lcd12864_put_xystr(114,7,4,Num+ (tmp%10)*4);
}
}

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