仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）
單片機源程序如下:
- #include <reg52.h>
- #define uchar unsigned char
- #define uint unsigned int
- sbit RED_A=P0^0;
- sbit YELLOW_A=P0^1;
- sbit GREEN_A=P0^2;
- sbit RED_B=P0^3;
- sbit YELLOW_B=P0^4;
- sbit GREEN_B=P0^5;
- uchar Flash_Count = 0;
- Operation_Type = 1;
- void DelayMS(uint x)
- {
- uchar t;
- while(x--)
- {
- for(t=120;t>0;t--);
- }
- }
- void Traffic_lignt()
- {
- switch(Operation_Type)
- {
- case 1:
- RED_A=1;YELLOW_A=1;GREEN_A=0;
- RED_B=0;YELLOW_B=1;GREEN_B=1;
- DelayMS(2000);
- Operation_Type = 2;
- break;
- case 2:
- DelayMS(200);
- YELLOW_A=~YELLOW_A;
- if(++Flash_Count !=10)
- return;
- Flash_Count=0;
- Operation_Type = 3;
- break;
- case 3:
- RED_A=0;YELLOW_A=1;GREEN_A=1;
- RED_B=1;YELLOW_B=1;GREEN_B=0;
- DelayMS(2000);
- Operation_Type = 4;
- break;
- case 4:
- DelayMS(200);
- YELLOW_B=~YELLOW_B;
- if(++Flash_Count !=10)
- return;
- Flash_Count=0;
- Operation_Type = 1;
- break;
- }
- }
- void main()
- {
- while(1)
- {
- Traffic_lignt();
- }
- }
Keil代碼與Proteus仿真下載:
LED模擬交通燈.7z
(44.43 KB, 下載次數: 62)
2022-4-28 16:46 上傳
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