2051DMX512.rar_PWM调光 DMX512_at89c2051 PWM_dmx512主控_dmx512协议_原理图

//#include <AT892051.h> #include <REG2051.h> #include <stdlib.h> #include "main.h" #include "InputBin.h" #include "eeaddr.h" static U16 Lightness_Point; U16 TransAddr; U8 Light_Brightness; unsigned char Light_Brightness1[3]; //U8 ucDot; unsigned char ucDot[3]; U8 light_Point; bit RS_BoardT_Flag; bit IsFlash; bit IsBrightness; U8 ucBirghtLevel; U8 ucPWMCouter; U8 uc100us; //计时变量100us U8 uc10ms; //计时变量0.01s U16 ui1s; //计时变量 1s unsigned int uc100us1; //zhuxiangyu82 unsigned char uc10ms1; //zhuxiangyu82 unsigned int uc100us2; //zhuxiangyu82 unsigned char uc10ms2; //zhuxiangyu82 unsigned char uc500ms1; //zhuxiangyu82 unsigned char uc20s2; //zhuxiangyu82 U16 ui10mschang; bit f_ctl_10s;//zhuxiangyu82 bit f_ctl_data; //char gcStep; //U8 gucCurValue; //U8 gucEndValue; //U8 gucModeStep;//变化步骤值 bit IsSelfMode;//是否自变模式 bit IsChangeStep;//是否进行步骤变化 bit Is10mschang;//是否到10ms改变周期 static bit Read_N_Bytes(unsigned char n,unsigned char *buffer); static void IIC_Start(); static void SEND_0(void); static void SEND_1(void); static void IIC_Byte_W(unsigned char b); static unsigned char IIC_Byte_R(); static bit IIC_ACK(); //static void Reset_WDog(); static void Deal_Comm(); static void Para_Init(); static void Comm_Init(); static void Deal_Ctrl(); //static void Dimming(U8 ucChannel,U8 ucStart,U8 ucEnd,U8 interval); //static void ChangeValue(); /************************* 主函数 main 入口参数：无 返回值：无 *************************/ void pwm(void) { //f_ctl_data=0; ucPWMCouter--; if(ucPWMCouter>0) { if(ucDot[0]>0) {ucDot[0]--;LIGHT0=0;} else{ LIGHT0=1;} if(ucDot[1]>0) {ucDot[1]--;LIGHT1=0;} else{ LIGHT1=1;} if(ucDot[2]>0) {ucDot[2]--;LIGHT2=0;} else{ LIGHT2=1;} } else { ucPWMCouter=64; ucDot[0] =Light_Brightness1[0]>>2; ucDot[1] =Light_Brightness1[1]>>2; ucDot[2] =Light_Brightness1[2]>>2; } } void main() { Para_Init(); Comm_Init(); do { Deal_Comm(); if(uc20s2)//如果是10s得不到COMMAND就跳变 { f_ctl_data=0; Deal_Ctrl(); } if(f_ctl_data) pwm(); } while(1); } /********* 参数初始化 入口参数：无 返回值：无 ********/ static void Para_Init() { ReadfromEEPROM(SELF_ADDR,&SelfAddr,2); //uit=ReadfromEEPROM(SELF_ADDR,&SelfAddr,2); ucPWMCouter=64; IsSelfMode=0; //gucModeStep=0; IsChangeStep=YES; Is10mschang=0; Addr_Out=0; //LIGHT0=0; IsFlash=0; ui1s=0; IsBrightness=0; //LIGHT0=0; P1_7=1; P1_6=1; P1_5=1; } //--- /********* 通信初始化 入口参数：无 返回值：无 ********/ static void Comm_Init() { PSW=0; TMOD=0x21; TL0=T0_low; TH0=T0_high; TL1=0xff;//Band_Set; TH1=0xff;//Band_Set; //PCON=0; PCON=0x80; SCON=0x50; PS=1; TCON=0x50; IE=0x92; RS_Send_Enable = NO; Trans_Data_Length =0; RS_T_Point =0; RS_R_Point=0; Recv_Data_Length=15; Have_RS_R_Data = NO; Lightness_Point = 0; light_Point = 0; RS_BoardT_Flag = NO; Light_Brightness = 0; } /*接收缓冲数据处理函数 描述： 入口参数：无 返回值：无 改变:g */ void RS_Recive() { U16 tempAddr; U8 tempData[4]; uc100us2=0;//zhuxiangyu82090215 uc20s2=0;//zhuxiangyu82090215 switch(RS_RECV_BUFFER[6])//command code { case 0x0://选测,return the lightness P1_5=~P1_5; break; case 0x10://选测,return the lightness Trans_Data_Length = 3+1;//3代表的是发送数据的帧头 后面的数据数是发送缓冲区的个数 配合发送流程函数的运算表达式来计算的有个减2的表达式 RS_TRANS_BUFFER[0] = 0x11; RS_TRANS_BUFFER[1]=Light_Brightness; Have_RS_T_Data = YES; break; case 0x20://ctrl single rtu Light_Brightness=RS_RECV_BUFFER[7]; if (RS_RECV_BUFFER[7]!=0) LIGHT0=1; else LIGHT0=0; IsSelfMode=0; Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0x21; Have_RS_T_Data = YES; break; case 0x30://synchronization time Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0x31; Have_RS_T_Data = YES; break; case 0x40://start self mode Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0x41; Have_RS_T_Data = YES; IsSelfMode=1; //gucModeStep=0; IsChangeStep=YES; Is10mschang=0; break; case 0xa0://set the normal addr SelfAddr=((U16)RS_RECV_BUFFER[7]<<8)+RS_RECV_BUFFER[8]; Write2EEPROM(SELF_ADDR,&SelfAddr,2); Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0xa1; Have_RS_T_Data = YES; Addr_Out=1; //IsFlash=1; P1_6=0; break; case 0xb0://set the normal addr Have_RS_T_Data = NO;//zhuxiangyu82090213 f_ctl_data=1; Light_Brightness1[0]=RS_RECV_BUFFER[7]; Light_Brightness1[1]=RS_RECV_BUFFER[8]; Light_Brightness1[2]=RS_RECV_BUFFER[9]; break; case 0xb1://set the normal addr Have_RS_T_Data = NO; P1_5=1; P1_6=0; P1_7=1; // P1_6=1; break; case 0xb2://set the normal addr Have_RS_T_Data = NO; P1_5=1; P1_6=1; P1_7=0; // P1_6=1; break; case 0xb3://set the normal addr Have_RS_T_Data = NO; P1_5=0; P1_6=0; P1_7=1; // P1_6=1; break; case 0xb4://set the normal addr Have_RS_T_Data = NO; P1_5=0; P1_6=1; P1_7=0; break; case 0xb5://set the normal addr Have_RS_T_Data = NO; P1_5=0; P1_6=0; P1_7=0; break; case 0xb6: Have_RS_T_Data = NO; case 0xa2://set the special addr SpecialAddr=((U32)RS_RECV_BUFFER[7]<<24)+((U32)RS_RECV_BUFFER[8]<<16)+((U32)RS_RECV_BUFFER[9]<<8) +RS_RECV_BUFFER[10]; Write2EEPROM(SPECIAL_ADDR,&SpecialAddr,4); Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0xa3; Have_RS_T_Data = YES; break; case 0xa4://read the special addr Trans_Data_Length = 3+4; RS_TRANS_BUFFER[0] = 0xa3; RS_TRANS_BUFFER[1] =(U8)(SpecialAddr>>24); RS_TRANS_BUFFER[2] =(U8)(SpecialAddr>>16); RS_TRANS_BUFFER[3] =(U8)(SpecialAddr>>8); RS_TRANS_BUFFER[4] =(U8)SpecialAddr; Have_RS_T_Data = YES; break; case 0xa6: tempAddr=((U16)RS_RECV_BUFFER[7]<<8) + RS_RECV_BUFFER[8]; ReadfromEEPROM(tempAddr,&tempData,RS_RECV_BUFFER[9]); Trans_Data_Length = 3+RS_RECV_BUFFER[9]; RS_TRANS_BUFFER[0] = 0xa7; RS_TRANS_BUFFER[1] = tempData[0]; RS_TRANS_BUFFER[2] = tempData[1]; RS_TRANS_BUFFER[3] = tempData[2]; RS_TRANS_BUFFER[4] = tempData[3]; Have_RS_T_Data = YES; break; case 0xa8://set addr_out if (RS_RECV_BUFFER[7]!=0) Addr_Out=1; else Addr_Out=0; Trans_Data_Length = 3; RS_TRANS_BUFFER[0] = 0xa9; Have_RS_T_Data = YES; break; default: break; } RS_R_Point=10; Erase_Recv_Buff(); REN=1; } /* 描述：清接收缓冲 输入：无 输出：无 改变:RS_R_Point,RS_RECV_BUFFER[],R_Flag */ void Erase_Recv_Buff() { unsigned char i; for(i=0;i<=RS_R_Point;i++) { RS_RECV_BUFFER[i]=0; } RS_R_Point=0; RS_BoardT_Flag = NO; } /*接收中断处理函数 描述：串口缓冲区数据的存放先放起始符到目的地址，若效验正确是本机数据，则开始接收下面的 数据，第一个字节放长度，然后放源地址，然后是TL，依次往下，CRC不放入缓冲区。 输入：无 输出：无 改变:CRC及接收各标志和缓冲区 */ void Recv_Int() { U16 tempaddr; RS_Recv_WaitTime = 0; RS_RECV_BUFFER[RS_R_Point]=SBUF; if (RS_BoardT_Flag != YES) { switch(RS_R_Point) { case 0: if(RS_RECV_BUFFER[0]!=SIO1) { Erase_Recv_Buff(); return; } RS_Recv_Wait_Flag=YES; break; case 1: if(RS_RECV_BUFFER[1]!=SIO2) { Erase_Recv_Buff(); return; } break; case 3://len Recv_Data_Length=((U16)RS_RECV_BUFFER[2]<<8)+RS_RECV_BUFFER[3]; break; case 5://addr //ReadfromEEPROM(SELF_ADDR,&SelfAddr,2); tempaddr=(RS_RECV