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發布時間: 2017-11-19 11:03
正文摘要:我再做一個帆板控制系統的設計，做到這里卡住了！這個設計主要功能是：用風扇吹動帆板，并測量帆板的角度；風扇用pwm控速，鍵盤輸入pwm大小， 角速度傳感器子程序運行正常！ 12864子程序運行正常 只有pwm控制程 ... |
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#include<reg52.h> #include "control.h" #include "12864.h" #define uchar unsigned char #define uint unsigned int sbit A1=P2^2; sbit A2=P2^3; sbit ENA=P2^4; signed int count=0; unsigned char pwm=100; unsigned char anjian=0; uchar numshi=0; uchar numge=0; void anjian_dis() { numshi=anjian/10; numge=anjian%10; write_12864_data(0x30+numshi); write_12864_data(0x30+numge); } void delayms(unsigned int xms) { unsigned int i,j; for(i=0;i<xms;i++) for(j=0;j<110;j++); } void keyscan_1() { unsigned char dat=0; unsigned char num=0; P1=0xfe; dat=P1; dat=dat&0xf0; while(dat!=0xf0) { delayms(10); dat=P1; dat=dat&0xf0; while(dat!=0xf0) { dat=P1; switch(dat) { case 0xee:num=1; break; case 0xde:num=2; break; case 0xbe:num=3; break; case 0x7e:num=4; break; } while(dat!=0xf0) { dat=P1; dat=dat&0xf0; } } } P1=0xfd; dat=P1; dat=dat&0xf0; while(dat!=0xf0) { delayms(10); dat=P1; dat=dat&0xf0; while(dat!=0xf0) { dat=P1; switch(dat) { case 0xed:num=5; break; case 0xdd:num=6; break; case 0xbd:num=7; break; case 0x7d:num=8; break; } while(dat!=0xf0) { dat=P1; dat=dat&0xf0; } } } P1=0xfb; dat=P1; dat=dat&0xf0; while(dat!=0xf0) { delayms(10); dat=P1; dat=dat&0xf0; while(dat!=0xf0) { dat=P1; switch(dat) { case 0xeb:num=9; break; case 0xdb:num=10; break; case 0xbb:num=11; break; case 0x7b:num=12; break; } while(dat!=0xf0) { dat=P1; dat=dat&0xf0; } } } P1=0xf7; dat=P1; dat=dat&0xf0; while(dat!=0xf0) { delayms(10); dat=P1; dat=dat&0xf0; while(dat!=0xf0) { dat=P1; switch(dat) { case 0xe7:num=13; break; case 0xd7:num=14; break; case 0xb7:num=15; break; case 0x77:num=16; break; } while(dat!=0xf0) { dat=P1; dat=dat&0xf0; } } } switch(num) { case 1:write_12864_addr(1,3); anjian=0; pwm=0; anjian_dis(); break; case 2:write_12864_addr(1,3); anjian=10; pwm=100; anjian_dis(); break; case 3:write_12864_addr(1,3); anjian=20; pwm=20; anjian_dis(); break; case 4:write_12864_addr(1,3); anjian=30; pwm=30; anjian_dis(); break; case 5:write_12864_addr(1,3); anjian=40; pwm=40; anjian_dis(); break; case 6:write_12864_addr(1,3); anjian=50; pwm=50; anjian_dis(); break; case 7:write_12864_addr(1,3); anjian=60; pwm=60; anjian_dis(); break; case 13:pwm=pwm+5; break; case 14:pwm=pwm-5; break; case 15:pwm=pwm+1; break; case 16:pwm=pwm-1; break; default:break; } } void timer0() interrupt 3 { TH1=(65535-1000)/256; TL1=(65535-1000)%256; count++; if(count>=100) count=0; if(count<=pwm) { ENA=1; A1=0; A2=1; } else { ENA=0; A1=0; A2=1; } TR1=1; } |
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