variables
{
    int i;
    byte UART_Port = 1;
    dword Power_baudrate = 9600;
    int my_RS232Flag;
}

int RS232Init(dword port,dword baudrate,dword numberOfDataBits,dword numberOfStopBits,dword parity)
{
  dword ConfigureFlag;
  
  dword RS232OpenFlag;
  
  int flag=0;
  
  RS232OpenFlag=RS232Open(port);
  
  if(RS232OpenFlag!=1)
  {
    flag=1;
  }
  else
  {
    ConfigureFlag = RS232Configure(port,baudrate,numberOfDataBits,numberOfStopBits,parity);
    
    if(ConfigureFlag==0)
    {
      flag=2;
    }
  }  
  return flag;
}

void RS232SetVoltage(float import_voltage)  
{
  byte VoltageSet[8];
  byte C1;
  byte C2;
  word tmp=0xFFFF;
  int n;
  int i;
  byte V1;
  byte V2;
  int Input; 
  tmp=0xFFFF;

  if(my_RS232Flag==0)
  {
     if(import_voltage>30)
      {
        import_voltage=30;
        write("Voltage too hign,we change it to 30V for protect the ECU!");
      }
      Input=100*import_voltage;
      write("Input=%d",Input);
      V1=(Input)>>8;       
      V2=(Input)&0xFF;     
      VoltageSet[0]=0x00;
      VoltageSet[1]=0x06;
      VoltageSet[2]=0x00;  
      VoltageSet[3]=0x00;
      VoltageSet[4]=V1;  
      VoltageSet[5]=V2; 
      for(n=0;n<6;n++)
      {
        tmp=VoltageSet[n]^tmp;
        for(i=0;i<8;i++)
        {
          if(tmp&0x01)
          {
            tmp=tmp>>1;
            tmp=(tmp^0xA001);
          }
          else
          {
            tmp=tmp>>1;
          }
         }
        write("tmp=%x",tmp);
       }
      
      C1=tmp&0xFF;
      C2=tmp>>8;
      VoltageSet[6]=C1;
      VoltageSet[7]=C2;
      RS232Send(UART_Port,VoltageSet,8);   
      testStepPass("Volt","Set  Voltage Succeed: %2.2fV",import_voltage);
  }
  else
  {
      testStepFail("Volt","Set  Voltage Fail - PORT %dCANNOT OPEN",UART_Port);
  }
}

void maintest()
{
  my_RS232Flag=RS232Init(UART_Port,Power_baudrate,8,1,0); 
  if(my_RS232Flag==0) /* Jugde if the Power connect and UART connect OK */
  {
    for(i=0;i<15;i++)
    {
      RS232SetVoltage(i*1.00);
      testWaitForTimeout(2000);
    }
  }
  else
  {
     testStepFail("Volt","Power Supply - PORT %dCANNOT OPEN",UART_Port);    
  } 
  CloseRS232(UART_Port);/* Close Port */