How To Use

To Use the API
C++ Includes Example
VB6 Includes Example
C# Includes Example
Create New DLL
Serial to USB Adapter
Hints

To Use the API
• Include the CS460.dll and CS460.lib files in the debug directory or wherever the exe is located
• In the code, reference the needed functions from the dll

C++ Includes Example
• HANDLE _stdcall kr_OpenPort(char *port);
• void _stdcall kr_ClosePort(HANDLE com);
• int _stdcall kr_Read(HANDLE com, unsigned char * msg, int NumBytesToRead);
• int _stdcall kr_Write(HANDLE com, unsigned char * msg, int NumBytesTorRead);

VB6 Includes Example
• Public Declare Function kr_OpenPort Lib "CS460.dll" (ByVal port As String) As Long
• Public Declare Function kr_ClosePort Lib "CS460.dll" (ByVal handle As Long) As Long
• Public Declare Function kr_Read Lib "CS460.dll" (ByVal handle As Long, ByRef ByteArr As Byte, ByVal Num As Long) As Long
• Public Declare Function kr_Write Lib "CS460.dll" (ByVal handle As Long, ByteArr As Byte, ByVal Num As Long) As Long

C# Includes Example
• [DllImport("CS460.dll", EntryPoint = "kr_OpenPort", ExactSpelling = true, CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]
  public static extern IntPtr kr_OpenPort(string port);
• [DllImport("CS460.dll", EntryPoint = "kr_ClosePort", ExactSpelling = true, CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)
  ] public static extern void kr_ClosePort(IntPtr comm);
• [DllImport("CS460.dll", EntryPoint = "kr_Read", ExactSpelling = true, CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]
  public static extern int kr_Read(IntPtr comm, ref byte msg, int num);
• [DllImport("CS460.dll", EntryPoint = "kr_Write", ExactSpelling = true, CharSet = CharSet.Ansi, CallingConvention = CallingConvention.StdCall)]
  public static extern int kr_Write(IntPtr comm, ref byte input, int num);

To Create New DLL
• Create a new dll project in C++
• Insert the CS460.c and CS460.def files into the project
• Create the dll by pressing F7
• The dll and lib files will be in the debug folder

To Use the Serial to USB Adapter
• Insert the disk into the drive
• Plug in the USB end into a port
• Load driver from the disk
• Adapter should then be usable

Hints
• Use a long as the comm port handle in VB
• Use a System.IntPtr as the comm port handle in .NET
• Save often when using VB6 and dlls. An improper call will cause an error and the whole VB6 program will shut down.
• If more resources are needed on the comm port, go to http://msdn.microsoft.com for all of Microsoft's documentation.