208 lines
4.1 KiB
C
208 lines
4.1 KiB
C
#include "includes.h"
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/*两字节CRC校验
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*len包括校验的长度
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*/
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void NetCRC16_Check(U8_T *aStr ,U16_T len)
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{
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U16_T alen = len-2; //CRC16???????
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U16_T xda , xdapoly ; //校验后的结果，多项式
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U16_T i,j, xdabit ; //缓存变量
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if(len < 3) //长度小于3
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{
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return ; //直接返回
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}
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xda = 0xFFFF ;
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xdapoly = 0xA001 ; // (X**16 + X**15 + X**2 + 1)
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for(i=0;i<alen;i++)
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{
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xda ^= aStr[i] ;
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for(j=0;j<8;j++)
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{
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xdabit = (U8_T)(xda & 0x01) ;
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xda >>= 1 ;
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if( xdabit ) xda ^= xdapoly ;
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}
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}
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aStr[alen] = (U8_T)(xda & 0xFF) ;
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aStr[alen+1] = (U8_T)(xda>>8) ;
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}
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/** @name CRC16校验得到
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* @para
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* aStr 数组首地址
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* len 数组长度，不包括校验
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*/
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U16_T GetCRC16( U8_T *aStr , U16_T len)
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{
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U16_T xda , xdapoly ;
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U16_T i, j, xdabit ;
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xda = 0xFFFF ;
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xdapoly = 0xA001 ; // (X**16 + X**15 + X**2 + 1)
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for (i = 0; i < len; i++)
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{
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xda ^= aStr[i] ;
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for (j = 0; j < 8; j++)
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{
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xdabit = (unsigned char)(xda & 0x01) ;
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xda >>= 1 ;
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if ( xdabit ) xda ^= xdapoly ;
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}
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}
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return xda;
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}
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/*和校验*/
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U8_T SOR_CRC(U8_T *Data, U8_T DataLen)
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{
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U8_T i;
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U8_T sor_data = 0;
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for(i = 0; i < DataLen; i++)//i可能为0 ，也可以是1
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{
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sor_data = sor_data+Data[i];
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}
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return sor_data;
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}
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/*控制回复报文*/
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void Rs485AskCtrlSend(U8_T* Recdata)
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{
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U8_T SendData[10];
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SendData[0] = 0x55;
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SendData[1] = 0x55;
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SendData[2] = 0xee; //头
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SendData[3] = 0x07; //长度
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SendData[4] = Tem_Type; //类型
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SendData[6] = 0x01; //类型 - 红外转发
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SendData[5] = g_Dip.DIP_addr;
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SendData[7] = 0x01; //内容 - 接收成功
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NetCRC16_Check(&SendData[0+3], SendData[0+3]); //校验
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Set_GroupSend(SendData,10,1,BUSSend_ValidTime3,20); //组包
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}
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/**************************************************************************
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* IrSend_Rs485_Pro
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* 描述 ：红外转发接收处理函数
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* 输入 ：
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* RecData 接收数据
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* Len 数据长度
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* 输出 ：无
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* 调用 ：无
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*************************************************************************/
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U8_T IrSend_Rs485_Pro(U8_T *RecData, U16_T Len)
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{
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U8_T ret = 0;
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U16_T Crc_buf; //正确报文校验保存
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if(0x0D != Len)
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{
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return 0x01;
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}
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if((0x55 != RecData[0]) || (0x55 != RecData[1])|| (0xee != RecData[2]) )
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{
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return 0x02;
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}
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if( (g_Dip.DIP_addr != RecData[6])&&(0xFF != RecData[6]) )
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{
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return 0x03;
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}
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if( (RecData[3] + 3 != Len) || (Tem_Type != RecData[4]))
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{
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return 0x04;
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}
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Crc_buf = GetCRC16(&RecData[3], RecData[3]-2);
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if(Crc_buf == (RecData[Len-2]+(RecData[Len-1]<<8))) //校验通过
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{
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//控制空调
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if(0x01 == RecData[5])
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{
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//设置温度命令
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if((TEM_MIN_SET <= RecData[7]) && (RecData[7] < TEM_MAX_SET)) //在指定温度范围内
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{
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TempCtrl.TemState_Now.set_t = (RecData[7]&0x1f);
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}else if(RecData[7] == TEM_MAX_SET){
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TempCtrl.TemState_Now.set_t = (RecData[7]&0x20);
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}
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switch(RecData[8])
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{
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case 0x00:
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TempCtrl.TemState_Now.on_off = TEMP_OFF; //关机
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break;
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case 0x01:
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TempCtrl.TemState_Now.on_off = TEMP_ON; //开机
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break;
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default:
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break; //报文有误
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}
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switch(RecData[9]) //风速
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{
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case 0x03:
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TempCtrl.TemState_Now.fan = FAN_HIGH; //高风速
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break;
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case 0x02:
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TempCtrl.TemState_Now.fan = FAN_MID; //中风速
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break;
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case 0x01:
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TempCtrl.TemState_Now.fan = FAN_LOW; //低风速
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break;
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case 0x00:
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TempCtrl.TemState_Now.fan = FAN_STOP; //低风速
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break;
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default:
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break;
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}
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switch(RecData[10]) //
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{
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case 0x00:
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TempCtrl.TemState_Now.mode = MODEL_COLD; //制冷
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break;
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case 0x01:
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TempCtrl.TemState_Now.mode = MODEL_HOT; //制热
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break;
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case 0x02:
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TempCtrl.TemState_Now.mode = MODEL_WIND; //送风
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break;
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default:
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break;
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}
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Rs485AskCtrlSend(RecData);
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return 0x00;
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}
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}
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return 0x01;
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}
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