超速报警系统的设计与实现（本科毕业论文） - 图文(9)

武汉科技大学本科毕业设计

unsigned char data[16][16]={0};

byte true_tab[32]={0}; //最后转得的真实字库数据 byte ziku[512]={0};

void location_change(unsigned char m) //16个数 {

unsigned char j,t,x; unsigned int i,mul; byte cell; byte bit_choose,n;

for(x=0;x

for(i=0;i<16;i++) for(j=0;j<16;j++) data[i][j]=0;

for(i=0;i<32;i++) true_tab[i]=0; mul=x*32;

for(i=mul;i

cell=F16x16[i]; bit_choose=0x80; for(j=8;j<16;j++) {

if(((cell)&(bit_choose))!=0) data[i-mul][j]=1; bit_choose=bit_choose>>1; } }

for(i=mul+16;i

cell=F16x16[i]; bit_choose=0x80; for(j=0;j<8;j++) {

if(((cell)&(bit_choose))!=0) data[i-16-mul][j]=1; bit_choose=bit_choose>>1; }

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武汉科技大学本科毕业设计

}

for(j=0;j<16;j++) {

for(i=0;i<8;i++) { n=0;

if(data[i][j]==1) { n=1;

for(t=0;t

for(j=0;j<16;j++) {

for(i=8;i<16;i++) { n=0;

if(data[i][j]==1) { n=1;

for(t=0;t

} j=0;

for(i=mul;i

ziku[i]=true_tab[j]; j++; } } }

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武汉科技大学本科毕业设计

液晶屏的预显示及按键输入部分：

/****************液晶屏的预显示****************/ void pre_show(void) {

redraw_flag2=redraw_flag1; redraw_flag1=page_num;

if(redraw_flag2 != redraw_flag1) redraw_flag3=1; else redraw_flag3=0;

if(redraw_flag3==1) LCD_CLS();

switch(page_num) {

case 0: LCD_Print(19,0,\超速报警系统\ LCD_Print(0,3,\当前车速:\ break; case 1:

write_6_8_char(0,line_num,'*'); LCD_Print(32,0,\设置阈值\ LCD_Print(8,2,\正常:\ LCD_Print(8,4,\超限1:\ LCD_Print(8,6,\超限2:\ break; } }

/*************刷屏***************************/ void redraw() {

if(page_num==0) {

LCD_clear_L(73,4);

write_6_8_int(73,4,real_speed); write_6_8_string(98,4,\ }

if(page_num==1) {

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武汉科技大学本科毕业设计

LCD_clear_L(60,3);

write_6_8_int(60,3,normal_speed); write_6_8_string(85,3,\

LCD_clear_L(60,5);

write_6_8_int(60,5,out1_speed); write_6_8_string(85,5,\

LCD_clear_L(60,7);

write_6_8_int(60,7,out2_speed); write_6_8_string(85,7,\ } }

/*************修改变量值*********************/

void change_value(unsigned char page,unsigned char line,int num) {

if(page==1)

{ switch(line) {

case 2: write_6_8_char(0,2,'*'); normal_speed+=num;

if(normal_speed<0) normal_speed=0; if(normal_speed>255) normal_speed=255; break;

case 4: write_6_8_char(0,4,'*'); out1_speed+=num;

if(out1_speed<0) out1_speed=0;

if(out1_speed>255) out1_speed=255; break;

case 6: write_6_8_char(0,6,'*'); out2_speed+=num;

if(out2_speed<0) out2_speed=0; if(out2_speed>255) out2_speed=255; break;

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武汉科技大学本科毕业设计

} } }

/******************按键扫描********************/ void Key_Scan(void) {

unsigned char num=0;

if(change_page) //可能有翻页按键按下 {

LCD_DLY_ms(15); //延时消抖 if(change_page==1&&page_num==1) {

while(change_page); if(page_num<1) page_num++; else page_num=0; line_num=2; pre_show(); }

if(change_page==1&&page_num==0) {

while(change_page); page_num++; pre_show(); } }

if(change_line) //可能有换行按键按下 {

LCD_DLY_ms(15); //延时消抖 if(change_line==1&&page_num==1) {

while(change_line);

write_6_8_char(0,line_num,' '); if(line_num<7) line_num+=2; else line_num=2;

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