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89c51小型交通灯proteus8 平台仿真
交通灯闪烁时间可调
代码
- #include <reg51.h>
- void delay500ms(unsigned char k);
- void main(void)
- {
- SP=0X60;
- TMOD=0x01;
- IE=0x85;
- TCON=0x05;
- while (1)
- {
- P1=0x21;
- delay500ms(6);
- P1=0x41;
- delay500ms(2);
- P1=0x12;
- delay500ms(6);
- P1=0x14;
- delay500ms(2);
- }
- }
- void int_0(void) interrupt 0
- {
- unsigned char i1, i2;
- i1 = P1;
- for(i2=0; i2<60; i2++)
- {
- P1 = 0x21;
- delay500ms(1);
- P1 = 0x20;
- delay500ms(1);
- }
- P1 = i1;
- }
- void int_1(void) interrupt 2
- {
- unsigned char j1, j2;
- j1 = P1;
- for(j2=0; j2<60; j2++)
- {
- P1 = 0x12;
- delay500ms(1);
- P1 = 0x10;
- delay500ms(1);
- }
- P1 = j1;
- }
- void delay500ms(unsigned char m)
- {
- unsigned char k1, k2;
- TH0=0x3C; TL0=0xB0;
- TR0 = 1;
- for (k1=0; k1<m; k1++)
- {
- for(k2=0; k2<10; k2++ )
- {
- while(!TF0);
- TF0 = 0;
- TH0=0x3C; TL0=0xB0;
- }
- }
- }
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