1．设计任务

      本设计采用单片机为主控芯片，结合外围电路组成彩灯门的控制系统器，用来控制16个彩色的LED发光，实现彩色亮点的循环移动；通过软件编程实现各种各样的彩色亮点平面循环移动，该彩色控制器可以通过输入按钮、自动模式按钮和手动模式按钮来控制实现LED彩色十种灯光间的效果切换；还可以通过按钮暂停彩灯效果，使16个彩灯灯处于全亮的状态，再次按下相同按钮后继续之前的灯光闪烁效果。其中十种灯光效果分别是：顺时针流水灯、逆时针流水灯、交替闪烁、顺时针对角灯、逆时针对角灯、顺时针逐个点亮、顺时针逐个熄灭、逆时针逐个点亮、逆时针逐个熄灭、二进制加法。

2. 设计要求

2.1系统方案论证

根据设计任务，分析设计系统的组成，给出实现设计任务的几种方案，分析比较几种设计方案的优略，本着尽量以软件代替硬件，同时力求电路简单，工作可靠的原则，确定总体设计方案。

2.2系统硬件电路设计

根据系统设计方案进行软、硬件的分配，软、硬件设计分别进行。硬件设计包括单片机最小系统和扩展接口及配置，硬件结构在设计时要选择合适的元器件，硬件电路要简洁、工作可靠，需用Proteus绘制整个系统的电路仿真原理图。

2.3软件设计

根据该系统要求的功能进行软件设计，简述软件的功能，并根据每个模块的功能绘制软件流程图，根据流程图编写程序并汇编调试通过；列出软件清单，软件清单要求加以注释。

2.4 软硬件系统仿真

将编译后的程序软件加载到Proteus软件仿真的单片机ROM中，运行系统，实现软件程序对单片机系统的硬件电路的控制，并调试仿真结果，直至与设计任务相符。

/*******************?????********************/
#include <reg51.h>
#define false 0
#define true 1
#define uchar unsigned char
#define uint unsigned int
sbit pause_key = P3^0;//????
sbit auto_key = P3^1;//????????
sbit change_key = P3^2; //????????int ledCode[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//led??(????)
int ledCode2[8]={0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00};// led??(?????)
int disCode[10]={0x03,0x9f,0x25,0x0d,0x99,0x49,0x41,0x1f,0x01,0x09};//?????0-9
void displayLed(void);//??Led????
void keyScan(void);//????????
void Delay10ms(unsigned int n);//??10ms
bit isPause = false;//????
bit isAuto = true;//??????
bit isChange = false;//??????????
uchar time;//???0.5s
uchar types;//?????????
uint counts;//??????
void T0_INT(void) interrupt 1
{TL0=(65536-50000)/256;TH0=(65536-50000)%256;time++;if(time >= 10)//????:0.5s{time=0;if(isChange == true)//????????????{counts = 0;types++;//?????????if(types > 9)types = 0;P0 = disCode[types]; isChange = false;}displayLed();counts++;
}}
void main(void)
{TMOD=0x61;//0110 0001 //???TL0=(65536-50000)/256;//50msTH0=(65536-50000)%256;TR0=1; //??T0ET0=1; //T0????EA=1; //?????time = 0; //???????(0.5s)counts = 0; //??????types = 0; //???????pauseLed = 0; //??????P0=disCode[types];while(1){keyScan(); //???????}
}
void keyScan(void)
{if(pause_key == 0) //???????{Delay10ms(1);if(pause_key == 0){isPause = ~isPause;pauseLed = isPause;if(isPause == true){ET0 = 0; //??T0??P0 = 0xfd; P1 = 0x00; //????????P2 = 0x00;}else{ET0 =1; //T0????P0 = disCode[types];displayLed();}while(pause_key == 0); //????????}}if(auto_key == 0) //???????????{Delay10ms(1);if(auto_key == 0){isAuto = ~isAuto;autoLed = isAuto;}while(auto_key == 0); //????????}if(change_key == 0&& isAuto ==false) //????,????????{Delay10ms(1);if(change_key == 0){isChange = true;}while(change_key == 0); //????????}
}
void displayLed(void)
{switch(types){case 0: //?????led?{if(counts >= 16)counts =0;if(counts >= 15){if(isAuto == true)isChange = true;}if(counts <8){P1 = 0xff;P2 = ledCode[7-counts];}else{P1 = ledCode[15-counts];P2 = 0xff;}break;}case 1: //?????led?{if(counts >= 16)counts = 0;if(counts >= 15){if(isAuto == true)isChange = true;}if(counts <8){P1 = ledCode[counts];P2 = 0xff;}else{P1 = 0xff;P2 = ledCode[counts-8];}case 2: //????{if(counts >=16)counts = 0;if(counts >=15){if(isAuto == true)isChange = true;}if(counts %2 == 0) //??{P1 = 0xaa;P2 = 0xaa;}else{P1 = 0x55;P2 = 0x55;}break;}case 3: //?????{if(counts >=8)counts = 0;if(counts >=7){if(isAuto == true)isChange = true;}P1 = ledCode[7- counts];P2 = ledCode[7- counts];break;}case 4: //?????{if(counts >=8)counts = 0;if(counts >=7){if(isAuto == true)isChange = true;}P1 = ledCode[counts];P2 = ledCode[counts];break;}case 5: //???????{if(counts >=17)counts = 0;if(counts <8){P1 = ~ledCode2[7- counts];P2 = 0xff;}else if(counts <16){P1 = 0x00;P2 = ~ledCode2[15-counts];}else //??{P1 = 0x00;P2 = 0x00;if(isAuto == true)isChange = true;}break;}case 6: //????????{if(counts >=17)counts = 0;if(counts <8){P1 = ledCode2[7- counts];P2 = 0x00;}else if(counts <16){P1 = 0xff;P2 = ledCode2[15-counts];}else //??{P1 = 0xff;P2 = 0xff;if(isAuto == true)isChange = true;}break;}case 7: //???????{if(counts >=17)counts = 0;if(counts <8){P1 = 0xff;P2 = ledCode2[counts];}else if(counts <16){P1 = ledCode2[counts -7];P2 = 0x00;}else //??{P1 = 0x00;P2 = 0x00;if(isAuto == true)isChange = true;}break;}case 8: //???????{if(counts >=17)counts = 0;if(counts <8){P1 = 0x00;P2 = ~ledCode2[counts];}else if(counts <16){P1 = ~ledCode2[counts -7];P2 = 0xff;}else //??{P1 = 0xff;P2 = 0xff;if(isAuto == true)isChange = true;}break;}case 9: //?????{if(counts >=255)counts = 0;if(counts ==254 && isAuto == true)isChange = true;P1 = ~counts;P2 = ~counts;break;}default:types = 0;P0 = disCode[types];}
}}void Delay10ms(unsigned int n){unsigned int a,b;for(;n>0;n--){for(b=38;b>0;b--){for(a=130;a>0;a--);}}}

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