简单命令数据包的拆解

void rxdString_decomposition(unsigned char rxdString[])  //拆解数据包为多个命令 {   unsigned char *temprxdP;   unsigned char i=0,j;   temprxdP = rxdString;  //rxdString为接收到的命令数据包   quantity_Commands = 0;  //记录数据包里的命令数量   for(i=0;i<30;i++)   { //一个命令长度为14位。开始位和结束位为"zz"和"cc"。   if((*temprxdP=='z')&&(*(temprxdP+1)=='z')&&(*(temprxdP+12)=='c')&&(*(temprxdP+13)=='c'))   {     temprxdP = temprxdP + 2;    for(j=0;j<10;j++)     commands[i][j]=*(temprxdP++);//将一个命令保存到commands[i]中。    quantity_Commands++;   }   else   { //这里可进入一些处理命令数据异常的函数。    break;   }   temprxdP = temprxdP + 2;  } //=================================================================  void commands_Control()   //解释每一条命令 {  volatile unsigned char i = 0,j=0;  //volatile unsigned char j=1;  //float th = 1000;  j=quantity_Commands;  for(;i   {       switch(commands[i][0])    {     case '0': function_1st=1;        switch(commands[i][1])        {        case 'a': ini_flag=23;continue;        case 'b': ini_flag=29;continue;        case 'c': ini_flag=28;continue;        case 'd': ini_flag=26;continue;        case 'e': ini_flag=38;continue;        case 'f': ini_flag=60;continue;        case 'g': ini_flag=69;continue;        case 'h': ini_flag=78;continue;        default:            continue;        }break;     case 'a': p_function[i]=BigRAZ_test;break;     case 'b': p_function[i]=SmallRAZ_test;break;     case 'c': switch(commands[i][1])        {        case '0': p_function[0]=Demo_2x7x;           quantity_Commands=1;           //demo_flag=1;           curve_init_flag=1;           i=i+3;           continue;        case 's': speed_angle_flag=1;           p_function[0]=Demo_2x7x;           quantity_Commands=1;           continue;        case 'b': stopDemo_flag=1;p_function[0]=Demo_2x7x;quantity_Commands=1;           continue;        case 'a': startDemo_flag=1;           demo_flag=1;           p_function[0]=Demo_2x7x;           quantity_Commands=1;           continue;        case 'z': reset_flag_27x=1;           p_function[0]=Demo_2x7x;           quantity_Commands=1;           switch (commands[i][2])            {            case '0':motortype = 38;break;            case '1':motortype = 29;break;            case '2':motortype = 78;break;            default:break;            }           continue;        default: continue;        }break;     case 'd': p_function[i]=Startup_speed;break;     case 'e': p_function[i]=Scram_speed;break;     case 'f': p_function[i]=oneustep;break;     case 'g': p_function[i]=Partial_Step;break;     case 'h': switch(commands[i][1])        {         case '0': p_function[i]=onedegree;break;         case 'a': p_function[i]=onestep;break;         default: break;        }break;     case 'j': break_flag=1;function_1st=0;break;     case 'l': switch(commands[i][1])        {         case '1': p_function[0]=Light_and_Relay;            //quantity_Commands=1;            light_on_flag=1;            break;         case '0': p_function[0]=Light_and_Relay;            light_off_flag=1;            break;         case '3': p_function[0]=Light_and_Relay;            relay_on_flag=1;            break;         case '2': p_function[0]=Light_and_Relay;            relay_off_flag=1;            break;         default: break;        }     default: break;//continue;    }    parameter1[i]= Character_to_Data(commands[i][2])*1000+        Character_to_Data(commands[i][3])*100+        Character_to_Data(commands[i][4])*10+        Character_to_Data(commands[i][5]);    paremeter2[i]= Character_to_Data(commands[i][6])*1000+        Character_to_Data(commands[i][7])*100+        Character_to_Data(commands[i][8])*10+        Character_to_Data(commands[i][9]);    }   if(curve_init_flag==1)   v_ustep_set();   if(speed_angle_flag==1)   speed_angle_set(); }