15-PWM调光.rar_PWM 呼吸灯_PWM调光_呼吸灯

#include<reg52.h> //包含头文件 #define uint unsigned int sbit R1 = P1^0; sbit G1 = P1^1; sbit B1 = P1^2; sbit key = P3^7; void Delay(uint t); //函数声明 void init(); void PWM_R(uint CY,uint r); void PWM_G(uint CY,uint g); void PWM_B(uint CY,uint b); void PWM_RG(uint CY,uint rg); void PWM_GB(uint CY,uint gb); void PWM_BR(uint CY,uint br); uint j=0;r=0,g=0,b=0,rg=0,gb=0,br=0; void main() { init(); while (1) { for(r;r<800;r++) PWM_R(800,r); for(rg;rg<800;rg++) PWM_RG(800,rg);rg=0; for(gb;gb<800;gb++) PWM_GB(800,gb);gb=0; for(br;br<800;br++) PWM_BR(800,br);br=0; } } void init() { Delay(5000); R1 = 0; G1 = 0; B1 = 0; Delay(50000); R1 = 1; G1 = 1; B1 = 1; } void PWM_R(uint CY,uint r) //红渐亮 { R1 = 1; Delay(CY-r); //高电平时间 if(r != 0) { R1 = 0; Delay(r); //低电平时间 } } void PWM_G(uint CY,uint g) //绿渐亮 { G1 = 1; Delay(CY-g); //高电平时间 if(g != 0) { G1 = 0; Delay(g); //低电平时间 } } void PWM_B(uint CY,uint b) //蓝渐亮 { B1 = 1; Delay(CY-b); //高电平时间 if(b != 0) { B1 = 0; Delay(b); //低电平时间 } } void PWM_RG(uint CY,uint rg) //红渐暗绿渐亮 { R1 = 0; G1 = 1; Delay(CY-rg); //高电平时间 if(rg != 0) { R1 = 1; G1 = 0; Delay(rg); //低电平时间 } } void PWM_GB(uint CY,uint gb) //绿渐暗蓝渐亮 { G1 = 0; B1 = 1; Delay(CY-gb); //高电平时间 if(gb != 0) { G1 = 1; B1 = 0; Delay(gb); //低电平时间 } } void PWM_BR(uint CY,uint br) //蓝渐暗红渐亮 { B1 = 0; R1 = 1; Delay(CY-br); //高电平时间 if(br != 0) { B1 = 1; R1 = 0; Delay(br); //低电平时间 } } void Delay(uint t) //延时 { uint a,c,d; for(d=t;d>0;d--) for(c=2;c>0;c--) for(a=10;a>0;a--); }