Moxa DA-682-CE PC
Contents
1. static DWORD comReadThread LPVOID param HANDLE hCom HANDLE param DWORD rtn unsigned char buffer MAX DATA LEN 1 while 1 if ReadFile hCom buffer MAX DATA LEN amp rtn NULL 0 printf read data fail n return 0 buffer rtn NO printf Data s n buffer 3 14 Windows CE Programmer s Guide Programming Examples CloseHandle hCom int comPair WCHAR wComPort WCHAR rComPort HANDLE wCom rCom WCHAR sPort 64 DWORD rtn i loop 0 unsigned char buffer MAX DATA LEN HANDLE waitH if waitH NULL return 99 unsigned int baudrate CreateEvent NULL FALSE FALSE NULL create a handle to port COM3 for transmitting data wsprintf sPort wCom if wCom NULL L device s 0 createComHandle sPort baudrate wComPort printf Fail to create write port n return 1 create a handle to port COM3 for receiving data wsprintf sPort L device s 0 rCom if rCom NULL rComPort createComHandle sPort baudrate printf Fail to create read port n CloseHandle wCom return 2 for a thread to handle receiving if CreateThread NULL 0 comReadThread LPDWORD rCom NULL 0 NULL printf Fail to create a receiving thread n CloseHandle wCom CloseHandle rCom return 3 for i 0 i lt MAX DATA2. C developers can choose Visual Studio 2005 or eMbedded Visual C 4 0 eVc 4 0 eMbedded Visual C 4 0 can be downloaded for free from the Microsoft MSDN website but Windows CE 6 0 does not support eMbedded Visual C 4 0 In this chapter we present the steps you should follow to install development tools for Windows Embedded Application Development The following topics are covered in this chapter Q Visual Studio 2005 gt Installing Visual Studio 2005 gt Uninstalling Microsoft Net Compact Framework 2 0 gt Installing the Net Compact Framework 2 0 with Service Pack UO eMbedded Visual C eVC 4 0 LJ Moxa Windows CE C C SDK Windows CE Programmer s Guide Installing Development Tools Visual Studio 2005 Microsoft Visual Studio 2005 is a complete set of development tools for building ASP NET Web applications XML web services desktop applications and mobile applications The same IDE is used by Visual Basic Visual C and Visual J allowing them to share tools and facilitating the creation of mixed language solutions Visual Studio 2005 Setup will install Net Compact Framework 2 0 on your development station You will also need to install Service Pack 1 for Net Compact Framework 2 0 in order to match the version used by the Moxa WinCE embedded computer When installing the service pack you will be prompted to remove any older versions of Net Compact Framework 2 0 that are already installed on your compute
3. Example Digital I O UC 7408 CE IA 26X CE V468 CE C Example LCM UC 7410 CE UC 7420 CE C Example Function Keys UC 7410 CE UC 7420 CE C Example TCP Client and TCP Server C Example Message Queue Windows CE Programmer s Guide Programming Examples Before You Begin Programming Understanding the File System Before you begin programming your embedded computer you should take time to understand the file system used by the embedded computer s operating system and the characteristics of the storage media This knowledge will help you make better use of the embedded computer s resources and as a result develop more efficient and effective applications RAM based Storage All of Moxa s embedded computers have a pre partitioned RAM storage space mounted as a directory For some models this is just the root directory and for other models it s a directory named RAMDisk Files can be stored temporarily in this directory and its subdirectories but they will be deleted when the computer is shut down or restarted Persistent files and programs must be placed in the flash storage Flash Storage NOR flash onboard memory storage is provided through the NORFlash directory Data saved in this directory will be retained during a power failure or when the power is disconnected CF Compact Flash and SD Secure Digital cards can also provide persistent NAND flash memory storage These storage options pr
4. Test Propet D My DorunensiVisual Studio 20051Projerts Solution Create new Solution y Mort dieco tor salntion Son ae 6 Click Device Option gt dbgi Microsoft Yisual Studio Fie Edit View Refactor Debug Data Took Window Community Help Elva Gb MAJE nee Debug Any CPU i Windows CE 5 0 Device eal ao FL Ar JE SE P ee iB _ Program cs Start Page vx Habel Program dntsting eres vi 4 EI lusing System g using System Collections Generic using System Text g namespace dbgi class Program i static void Maini string args 7 Click Properties Options A Show devices for platform E Projects lutions n EG Sauma Gail Wiioveceso E Text Editor ies Database Tools T E A Device 1 peer Device Tools Delete HTML Designer m amp Windows Forms Designer d Eropertes 2 3 Windows CE Programmer s Guide Application Development 8 Click Configure Windows CE 5 0 Device Properties Default output location on device Program Files Folder Transport Bootstrapper ActiveSync Startup Provider Configure Detect when device is disconnected 9 Click the Use specific IP Address radio button and enter the network address of the embedded computer Click OK to continue Configure TCP IP Transport
5. Windows CE Programmer s Guide Programming Examples C Example Moxa UART RS 232 422 485 The following C C code shows a sample application that transmits text data from port COM3 to port COM4 in the RS 232 operation mode The application opens these two ports generates a thread to receive data from port COM4 and then executes as a main thread to transmit data to port COM3 include stdafx h include lt stdio h gt include lt moxa devices h gt define MAX DATA LEN 128 static HANDLE createComHandle WCHAR comPort unsigned int baudrate HANDLE hCom DCB dcb COMMT IMEOUTS to hCom CreateFile comPort GENERIC READ GENERIC WRITE 0 exclusive access until the handle is closed NULL no security OPEN EXISTING 0 no overlapped I 0 NULL null template if hCom INVALID HANDLE VALUE return NULL set serial setting GetCommState hCom amp dcb dcb BaudRate baudrate dcb ByteSize 8 dcb StopBits ONESTOPBIT dcb Parity NOPARITY dcb fRtsControl RTS_CONTROL_HANDSHAKE dcb fOutxCtsFlow TRUE SetCommState hCom amp dcb set timeout parameter to ReadIntervalTimeout 0 to ReadTotalTimeoutMultiplier to ReadTotalTimeoutConstant 0 to WriteTotalTimeoutMultiplier 0 to WriteTotalTimeoutConstant 0 if SetCommTimeouts hCom amp to 0 printf SetCommTimeouts error n CloseHandle hCom return NULL return hCom
6. ipc_create_thread test_client_thread void hosts i fd int servers_init int argc char argv HINFO hosts int max return 0 void servers_post_init int argc char argv HINFO hosts int max else _WIN32_WCE si server program void handle packet SOCKCONN s char buf int len static unsigned int num_bytes 0 num_bytes unsigned int len printf r lu num bytes argv lt port gt int servers_init int argc char argv HINFO hosts int max int i if arge lt 1 printf Usage progname lt TCPPort gt n exit 1 for i 0 i lt argc amp amp i lt max i hosts i port atoi argv i return i void servers_post_init int argc char argv HINFO hosts int max int clients_init int argc char argv HINFO hosts int max return 0 void clients_post_init int argc char argv HINFO hosts int max 3 22 Windows CE Programmer s Guide Programming Examples endif unsigned int lookup_ip const char host struct hostent he unsigned int ip ip inet addr host if ip INADDR NONE he gethostbyname host if he printf lookup_ip can t find ip for host s n host return 0 memcpy amp ip he gt h_addr_list 0 he gt h length return ip set socket to be nonblocking int tcp_set_nonbl
7. private moxa uc7400 KeyPad fkey static void Main string args int n 0 create the current class obejct Program keypadsve new Program wait 30 seconds while n lt 30 System Threading Thread Sleep 1000 n System Console WriteLine quit keypadsvc stop keypadsve null System Console WriteLine exit public Program int i 0 string sKeyName fkey new moxa uc7400 KeyPad 5 for i 1 i lt 5 i make function key name sKeyName F i ToString create function key object fkey i 1 new moxa uc7400 KeyPad sKeyName bind key click event to event function fkey i 1 KeyClick new moxa uc7400 KeyClickEventHandler keyOnclick start listening fkey i l listen public void stop int i 0 for i 0 i lt 5 i Windows CE Programmer s Guide Programming Examples close function key object fkey i stop Program System Console WriteLine Program int i 0 for i 0 i lt 5 i remove object from memory fkey i null1 fkey null public void keyOnclick object sender int e System Console WriteLine key e ToString clicked C Example Real time Clock UC 74XX CE DA 66X CE The real time clock RTC is a hardware implementation of time It is different from the system time or CPU time that is general
8. KA WCE MFC AppWizard dll Sa RAWCE MFC AppWizard exe DieVC Serial Ei S WCE Static Library amp Create new workspace C Add to current workspace M Dependent Has o D Us Win32 WCE ARMY4 Win32 WCE ARMVAI Win32 WCE ARMY 4T ClWin32 WCE MIPS16 Win32 WCE MIPSII Win32 WCE MIPSII FP Cancel he KO 2 5 Windows CE Programmer s Guide Application Development 5 Choose the type of application that you would like to create and then click Finish WCE Application Step 1 of 1 What kind of windows application would you like to create C An empty project C Atypical Hello World application lt Back Next gt Cancel 6 From the Build toolbar choose the SDK UC7400CE1 0 for this example the type of run time image Release or Debug and the target device UC7400CE1 0 Device for this example Wi sorial232r Microsoft eMbodded Visual Cht serial232r cpp A Bb Beit Von st Erect Euli Toole Window Holp ja OW fel o DAS Wet ln Globais Jl global membere z seriatzaer llucrazncel o v Win32 WCE ARMVAI Release v UC7420CE1 0 Device J egiara define MOXA_GET_CONF fdeFine MONA DIAGNOSE GB serial232r classes Bdefine MOXA_CHKPORTENABLE Globals define MOXA_HighSpeedin define MOxA_GET_MAJOR lidefine MOXA GET_CUHAJOR Roerine MOXA_GETHSTATUS define MOXA_SET_OP_HODE define M XA GET UP MODE define MOXA_UNVALT Bdefine
9. LEN i buffer i unsigned char PurgeComm wCom PURGE TXCLEAR while loop lt 100 if WriteFile wCom buffer MAX DATA LEN a i 26 PURGE_TXABORT amp rtn NULL 0 printf Fail to write n break WaitForSingleObject waitH CloseHandle wCom CloseHandle rCom CloseHandle waitH return 0 int WINAPI WinMain HINSTANCE hInstance LPTSTR lpCmdLine int nCmdShow comPair L COM3 return 0 L COM4 38400 100 HINSTANCE hPrevInstance Windows CE Programmer s Guide Programming Examples Windows API function CreateFile opens a named file corresponding to a serial port For serial ports COM10 or after the file name must be prefixed by deviceW For ports COM1 to COM the file name may be prefixed by device but it is not required API function GetCommState is the standard function to obtain a serial port s current parameters such as baudrate data bits bytesize parity and stop bits API function SetCommState is used to set those parameters Other parameters including flow control DTR signal and RTS signal can be adjusted to fine tune the serial port Be sure to set the flow control correctly or data will be lost The embedded computer supports four serial communication interfaces RS 232 default RS 422 2 wire RS 485 and 4 wire RS 485 To change the operation mode your program should include the follo
10. REAL 7 Set break points in your source code and press F5 to start the on line debug 8 On the popup Manuel Server Action window copy the string inside the text box NOTE Do NOT click OK or Cancel at this time Manual Server Action Please make sure the following files are on the device wINDOWS tcpipe dll WINDOWS cemare exe WINDOWS cetlstub dll And launch CEMGRC EXE with the following cmd line Ea ER crc CEMGRC EXE T TCPIPC DLL AQ D 192 168 27 43 1800 9 Log on the embedded computer using a Telnet client 2 8 Windows CE Programmer s Guide Application Development 10 Paste the copied string to the Telnet window and then press Enter eX Telnet 192 168 27 151 Directory of G1 G1 98 1 B1 798 L BL 3 04 6Ga 4 Ga 4 80a B4 Ha 4 6G a 04 Aa CDI R gt lt DIR gt CDI R gt lt DIR gt lt DIR gt lt DIR gt Network NORFlash Ny Documents Program Files Temp Vindows Found 6 File lt s gt 1 Dirts 1669 NY GEMGRG ERE T TGPIPG DLL Q 7 D 192 168 27 43 1800 11 Return to the Manuel Server Action window and click OK to start a connection 12 The following window will appear 13 From c program files target army4i cemon exe To WINDOWS cemon exe When a successful connection has been established use F10 for code debugging E e232 Microsoft eMbodded ievel C break r2232 epD D Be Bit Yew Inert Dost Debug To
11. Read Visual C Examples A library mxdev lib is provided to simplify application development This library covers APIs for the buzzer LCM function key and digital I O devices To link it with your VS2005 developing environment perform the following steps from your V52005 tool 1 From the VS2005 solution explorer right click the project and choose Property 2 From the Left window choose Configuration Properties gt Linker gt Input 3 Append mxdev lib to the text field Additional Dependencies To link it with your eVC4 0 developing environment perform the following steps from your eVC4 0 tool From the main tool bar choose Project gt Settings From Project Settings select the Link tab Append mxdev lib to the text field Object Library Modules 4 Click OK Before you compile your application please make sure that the header file and the library file in the SDK directories are as shown below If any of them is not in the specified directory find it on the package CD and copy it to the specified directory i C Program Files Windows CE Tools wce500 lt model version gt UC7420CE1 0 Include Armv4i moxa devices h C Program Files Windows CE Tools wce500 lt model version gt UC7420CE1 0 lib Armv4i mxdev lib NOTE The programming examples for Moxa embedded computers are frequently updated The latest examples can be downloaded at ftp esource moxa com moxasys WinCE_Examples C 3 13
12. Use fixed port number Device IP address Obtain an IP address automatically using ActiveSync Use specific IP address 192 168 27 151 Fie Edit View Refactor Project Build Debug Data Tools Window Community Help IMAMA ESEN Program cs Sy dbel Program ME using System using System Collections Generic tusing System Text Main strinef args Snamespace dbgl 8 class Program xoqroor Qaia saas E 8 static void Main string args inti 0 j 0 int k 0 for i 0 i lt 100 itt for j 0 j lt 100 j kt i tj entuvn e 1 gt 2 4 Windows CE Programmer s Guide Application Development 11 Wait for the connection to be made Connecting p To Windows CE 5 0 Device Connection succeeded 12 You may now start the debugging process Developing an eMbedded Visual C 4 0 Application 1 Before you perform on line debugging please make sure that no other ActiveSync device is connected to your workstation Open Microsoft eMbedded Visual C 4 0 From the File menu choose New Choose the Projects tab and then select the type of application that you would like to build Next fill in the project name and then click OK Files Projects Workspaces S WCE Application Project name WCE ATL COM AppWizard era gt 4 WCE Dynamic Link Library a WCE MFC ActiveX ControlWizard i Location
13. V468 CE The embedded computer with the support of programmable digital input output channels provides you with I O control on other devices These channels can be accessed at run time via the following example program this function initialize a connection to the devices It must be called before you call other functions On success it returns a handle Otherwise it return NULL HANDLE mxdio_init void this function requests the system to detect a low to high or high to low event on a specified input port every tick_slot milliseconds On success it 3 16 Windows CE Programmer s Guide Programming Examples returns 0 lt hndl gt handle created by mxdio init lt port gt port number 0 7 lt handler gt callback function with prototype unsigned int unsigned int unsigned int lt low high gt macro DIN EVENT LOW TO HIGH or DIN EVENT HIGH TO LOW lt tick slot gt 10 milliseconds minimal int mxdio set input event HANDLE hndl unsigned int port mxdio input cb handler unsigned int low high unsigned int tick slot this function starts a dispatcher to handle events lt hndl gt handle created by mxdio init Return non zero to abort int mxdio dispatch HANDLE hndl this function set a digit level for a specified output port lt hndl gt handle created by mxdio init lt port gt port number 0 7 lt data gt 0 or 1 int mxdio set dout HANDLE hndl unsigned int port unsign
14. authorized to use this accept click I Accept then click Next Otherwise click Cancel MICROSOFT SOFTWARE LICENSE TERMS MICROSOFT NET COMPACT FRAMEWORK V 2 0 SERVICE PACK 1 These license terms are an agreement between Microsoft Corporation or based on where you live one of its affiliates and you Please read them They apply to the software named above which includes the media on which wn rereived it if anv The terms alen anniv tn anw Micrnanft ix I do not accept the terms in the license agreement Microsoft RY Print lt Back Cancel Windows CE Programmer s Guide Installing Development Tools 4 Select Ada and click Next to proceed PE Microsoft NET Compact Fra 0 SP1 Setup Wizard Setup Type Choose the setup type that best suits your needs 5 F Microsoft NET Compact Fr Ready to Install the Program The wizard is ready to begin installation Installing Microsoft NET Compact Framework 2 0 SP1 The program features you selected are being installed Windows CE Programmer s Guide Installing Development Tools 7 Click Finish to complete the installation procedure ie Microsoft NET Compact Fran 2 0 SP1 Setup Wizard Setup Wizard Completed The Setup Wizard has successfully installed Microsoft NET Compact Framework 2 0 SP1 Click Finish to exit the wizard H t Compact Framework eMbedded Visual C eVC 4 0 The eVC 4 0 tools can be
15. baudrate baudrate Parity None 8 true 3000 3 second timeout 1 ref bOut 0 ref new StopBits One raise RTS for flow control Attach a method to be called when there is data waiting in the port s buffer port DataReceived new SerialDataReceivedEventHandler DataReceived port ErrorReceived new SerialErrorReceivedEventHandler ErrorEvent private void Open if port IsOpen port Open private void Close if port IsOpen port Close private void SendData String str Console WriteLine Sending Data str port WriteLine str Windows CE Programmer s Guide Programming Examples private void ErrorEvent object sender SerialErrorReceivedEventArgs e Console WriteLine error private void DataReceived object sender SerialDataReceivedEventArgs e while port BytesToRead gt 0 Console WriteLine Receiving Data port ReadByte private bool IsOpen return port IsOpen static void Main string args MxComPortEx comPort new MxComPortEx COM3 115200 comPort Open if comPort IsOpen int count 0 while count lt 10 comPort SendData ABCDEFGH count comPort Close C Example Buzzer UC 74XX CE DA 66X CE UC 712X CE The embedded computer supports hardware buzzers that applications can use as an ala
16. downloaded for free from the MSDN s eMbedded Visual Tools Download Page Install the eVC 4 0 tools and then install the service pack in the following order e Install eMbedded Visual C 4 0 230 MB e Install Service Pack 4 for e VC 4 0 68 MB e Install Moxa Windows CE C C SDKs NOTE Only Windows CE 5 0 supports eMbedded Visual C 4 0 for models shipped with Windows CE 6 0 please use Visual Studio 2005 Moxa Windows CE C C SDK After installing eVC 4 0 or Visual Studio 2005 on the development workstation C developers will need to install the C C SDK from Moxa The SDK file e g UC7400CESDK1 2 msi is available on the CD provided by Moxa or from the Moxa download center at http web4 moxa com support download_center asp To download the file from Moxa s website once the Download Center web page opens select your product from the Select a Product drop down list under Driver amp Software Downloads and then click Go Next scroll down towards the bottom of the page and click on the SDK link e g SDK_1 2 zip to download the file 1 Double click the MSI file to open it A Setup Wizard will appear to start the installation process Click Next to proceed 2 If an error message appears choose Close to continue the installation process This message indicates that the appropriate versions of the application development tools required by the SDK are not installed Ignore this message if you d
17. function key triggers A Yes you may find code examples in the programmer s guide Q How can I display a message on the LCM display from my program A You may find code examples in the programmer s guide The LCM has a display area of 8x16 characters in text mode Q Which version of Compact Framework is installed on the embedded computer A Embedded computers are pre installed with Compact Framework 2 0 If you have a new compact framework such as Net Compact Framework 3 5 you can install it on a Moxa WinCE embedded computer Windows CE Programmer s Guide Frequently Asked Questions Q What is the Moxa WinCE SDK What can I do with it A This SDK allows you to write programs in C C that will run on embedded computers With this SDK installed in the environment of Microsoft Embedded Visual C 4 0 or Visual Studio 2005 you can develop WIN32 applications DLL and others In addition the SDK provides a C library namely mxdev lib which allows control of the LCM function keys buzzer and other hardware devices Q When I install the Moxa WinCE SDK a message appears saying that no tool related to managed code is installed What is that A That message is for the NET development environment Just ignore it and continue with the installation Q Are emulators supported in the SDK A Emulators are not supported in the SDK A 2
18. generator with GetTickCount so that the numbers will be different every time we run srand GetTickCount get a number between 0 and 499 int nResult rand 500 LeaveCriticalSection amp cs return nResult int _tmain int argc _TCHAR argv DWORD dwData CLIENTS Initializing the critical section variable InitializeCriticalSection amp cs create the main thread first for waiting data CreateThread NULL 0 LPTHREAD START ROUTINE thread main NULL 0 NULL Sleep 500 for int i 0 i lt CLIENTS i dwData i i 1 create the client thread CreateThread NULL 0 LPTHREAD_START_ROUTINE thread_collectdata amp dwData i 0 NULL wait a command to close all threads WCHAR ch getwchar bQuit TRUE DeleteCriticalSection amp cs make sure all threads were closed Sleep 3000 return 0 3 29 A Frequently Asked Questions Q I have an eVB3 0 program Can I run it on the embedded computer A The old version of Embedded Windows CE programs cannot run on the embedded computer The target computer is headless with no screen It may only run applications that are at the console level To port your console program paste your source code into a new Visual Basic Net 2005 console application project You may encounter warning messages but the dynamic help screens should help you get through the process Q I have a program under NET Compact Frame
19. in order to demonstrate the easy process of application development Both tools include on line debugging for quicker and easier development As with most PC based development tools provided by Microsoft the debugging methods follow a step by step approach The following topics are covered in this chapter O Developing an Application with Visual Studio 2005 Debugging an Application with Visual Studio 2005 u LU Developing an eMbedded Visual C 4 0 Application Q Debugging an eMbedded Visual C 4 0 Application Windows CE Programmer s Guide Application Development Developing an Application with Visual Studio 2005 Open Microsoft Visual Studio Net 2005 From the File menu choose New gt Project Choose the Project Type and then select the Smart Device Application as the type of project Fill in the project name and click OK Choose Windows CE as the target platform Select the desired project type and click OK Write your application code From the Device toolbar choose Windows CE Net Device From the Build menu choose Build Project or Rebuild Project When you complete your application upload it to the embedded computer Log on to the embedded computer At the console prompt execute it directly if it is a C file Otherwise execute it using the program weescript exe if it is a VB script or java script file Debugging an Application with Visual Studio 2005 1 Before you use the remote tools please make
20. num ports memset hosts 0 MAX SOCKETS sizeof HINFO obtain hosts and their respective ports from user defined function num_ports clients_init argc 1 argv l hosts MAX SOCKETS for i 0 i lt num ports i fd make_client_connection hosts i hostname unsigned short hosts i port amp ip if fd lt 0 continue enable_read fd global clients global client num fd hosts i fd fd clients_post_init argc 1 argv l hosts num ports main event loop while 1 read_fds global read_fds to tv_sec 2 to tv_usec 0 if select global max_fd 1 amp read fds 0 0 amp to 1 break do client i o sequentially for i 0 i lt global client_num i fd global clients i fd if FD_ISSET fd amp read_fds continue if len recv fd buf MAX BUF LEN 0 lt 0 remove connection amp global clients i else handle packet amp global clients i buf len 3 26 Programming Examples Windows CE Programmer s Guide Programming Examples handle connection requests for i 0 i lt global server_num i fd global servers i fd if FD_ISSET fd amp read_fds accept_connection fd close all open file descriptors properly for i 0 i lt global client_num i closesocket global clients i fd for i 0 i lt global server num i closesocket global servers i fd ifdef WIN32 WSACle
21. port IPHostEntry myIpHostEntry Dns GetHostEntry args 0 Int32 port Int32 Parse args 1 IPEndPoint myIpEndPoint new IPEndPoint myIpHostEntry AddressList 0 port Socket mySocket new Socket myIpEndPoint Address AddressFamily SocketType Stream ProtocolType Tcp UInt32 TotalBytes 0 try mySocket Connect myIpEndPoint Create the NetworkStream for communicating with the remote host NetworkStream myNetworkStream if mySocket Connected myNetworkStream new NetworkStream mySocket true myNetworkStream new NetworkStream mySocket byte myReadBuffer new byte 1024 int numberOfBytesRead 0 Int32 dwCount 0 while myNetworkStream CanRead Incoming message may be larger than the buffer size do numberOfBytesRead myNetworkStream Read myReadBuffer 0 myReadBuffer Length TotalBytes UInt32 numberOfBytesRead while myNetworkStream DataAvailable dwCount if dwCount 1000 0 Console WriteLine Received Total TotalBytes ToString if myNetworkStream CanWrite 3 12 Windows CE Programmer s Guide Programming Examples myNetworkStream Write myReadBuffer 0 myReadBuffer Length Close the NetworkStream myNetworkStream Close catch Exception exception Console WriteLine Exception Thrown exception ToString Console Write Console Read Console
22. printf accept a client connection fd d n fd void remove_connection SOCKCONN s printf remove connection a client connection fd d n s gt fd disable read s gt fd closesocket s gt fd s global clients global client num if defined WIN32 WCE int WINAPI WinMain HINSTANCE hInstance HINSTANCE hPrevInstance LPTSTR lpCmdLine int nCmdShow else int main int argc char argv fendif struct timeval to unsigned int ip int i fd len num_ports char buf MAX BUF LEN HINFO hosts MAX SOCKETS fd set read fds WSADATA wsa if defined WIN32 WCE int argc char cmdline 256 argv 32 p WideCharToMultiByte CP ACP 0 LPCTSTR 1lpCmdLine 255 cmdline 256 NULL NULL 3 25 Windows CE Programmer s Guide p cmdline argc 1 while argc lt 32 while isspace p ptt if p 0 break argv argc p p strchr p if p break p 0 ptt endif WSAStartup MAKEWORD 2 2 amp wsa memset amp global 0 sizeof global_t memset hosts 0 MAX SOCKETS sizeof HINFO obtain listen ports from user defined function num_ports servers_init argc 1 argv l hosts MAX SOCKETS for i 0 i lt num ports i fd tcp_startup_server 0 hosts i port if fd lt 0 continue enable_read fd global servers global server_numt fd hosts i fd fd servers post init argc l argv l hosts
23. static unsigned int send bytes 0 int test client thread LPVOID param static char alphaNumber abcdefghi jklmnopqrstuvwxyz012345678 JABCDEFGHI JKLMNOPORSTUVWXYZ int fd int param char buf MAX BUF LEN int i len srand RNADOM_SEED while send bytes lt O0xfffffff len rand 1024 if len 0 continue for i 0 i lt len i buf i alphaNumber rand 62 buf i 0 send fd buf len 0 send_bytes len printf r lu send bytes Sleep 200 printf test_client_thread n return 0 void handle_packet SOCKCONN s char buf int len static unsigned int num_bytes 0 int fd s gt fd buf len 0 if send_bytes num_bytes unsigned int len printf r lu lu num bytes send bytes else printf 3d s n len buf argv lt host gt lt port gt int clients_init int argc char argv HINFO hosts int max int i n if arge lt 2 printf Usage progname lt host gt lt TCPPort gt n exit 1 for i 0 n 0 i lt arge amp amp n lt max i 2 n strcpy hosts n hostname argv i hosts n port atoi argv i l return n 3 21 Programming Examples Windows CE Programmer s Guide Programming Examples argv lt host gt lt port gt void clients post init int argc char argv HINFO hosts int max int i for i 0 i lt max i
24. uint RS485_2WIRE_MODE 1 const uint RS422 MODE 2 const uint RS485_4WIRE_MODE 3 private readonly static IntPtr INVALID_HANDLE_VALUE new IntPtr 1 private const UInt32 OPEN_EXISTING 3 private const UInt32 GENERIC_READ 0x80000000 private const UInt32 GENERIC_WRITE 0x40000000 String sPort public MxComPortConfig String sPort this sPort sPort private bool SetComPortInterface uint mode IntPtr comPort CECreateFileW sPort GENERIC_READ 0 IntPtr Zero 3 4 Windows CE Programmer s Guide Programming Examples OPEN_EXISTING 0 IntPtr Zero if comPort INVALID HANDLE VALUE return false int nBytesReturned 0 byte bIn byte mode byte bOut 0 DeviceIoControl comPort MOXA SET OP MODE nBytesReturned ref bin IntPtr Zero CECloseHandle comPort return true public bool return public bool return public bool return public bool return SetRS232 SetComPortInterface RS232_MODE SetRS422 SetComPortInterface RS422 MODE SetRS485TwoWire SetComPortInterface RS485_2WIRE_MODE SetRS485FourWire SetComPortInterface RS485 4WIRE MODE class MxComPortEx private SerialPort port private MxComPortEx string sPortName create a SerialPort instance with basic settings port SerialPort sPortName port RtsEnable port ReadTimeout int
25. NT button or obtain the text from the MSFT SDK EULA 1033 rtf file after installation You may also receive copy of this agreement by contacting the Microsoft subsidiary serving your country or write Microsoft Sales Information Center One Microsoft Way Redmond WA 98052 6399 END USER LICENSE AGREEMENT FOR MICROSOFT SOFTWARE MICROSOFT CUSTOM SOFTWARE DEVELOPMENT KIT FOR WINDOWS CE 5 0 Referred to as the Microsoft Custom SDK Press the PAGE DOWN key to see more text Windows CE Programmer s Guide Installing Development Tools 2 Type your name for User Name and the name of your company for Organization Click Next to proceed ill UC7400CESDK1_0 Setup Customer Information Please enter your customer information User Name your name Organization pe _______ lt Back Next gt Cancel 3 To install all functionality provided with the SDK click Complete and then click Next ie UC7400CESDK1_0 Setup Choose Setup Type Choose the setup type that best suits your needs Custom Allows users to choose which program features will be installed and where they will be installed Recommended for advanced users Complete All program features will be installed Requires most disk space Cancel Windows CE Programmer s Guide Installing Development Tools 4 To change the name of the folder in which the SDK will reside click Change and browse to the folder Otherwise click Ne
26. Programmer s Guide for Moxa s Windows CE Embedded Computers Third Edition March 2008 www moxa com product MON O 2008 Moxa Inc all rights reserved Reproduction without permission is prohibited Programmer s Guide for Moxa s Windows CE Embedded Computers The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement Copyright Notice Copyright 2008 Moxa Inc All rights reserved Reproduction without permission is prohibited Trademarks MOXA is a registered trademark of Moxa Inc All other trademarks or registered marks in this manual belong to their respective manufacturers Disclaimer Information in this document is subject to change without notice and does not represent a commitment on the part of Moxa Moxa provides this document as is without warranty of any kind either expressed or implied including but not limited to its particular purpose Moxa reserves the right to make improvements and or changes to this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Moxa assumes no responsibility for its use or for any infringements on the rights of third parties that may result from its use This product might include unintentional technical or typographical errors Changes are made periodically to
27. RS292 HODE define RSABS 2WIRE MODE define R A22 HODE define R 485 AVIRE MODE define OP MODE NASK moerine MONA SET SPEGIAL BAUD RATE MOXA 68 define MOXA GET SPECIAL BAUD RATE MOXA 69 int WINAPI WinHmain HINSTANCE hInstance 3 Class View ResourceView 3 FileYiew P LI HINSTANDE Mer oulnst ane GT Build Debug Findin Files Findin Files 7 Tal Bead in 106 Col 1 MEG Cor DVR READ 7 2 6 Windows CE Programmer s Guide Application Development 7 Write your code 8 From the Build menu choose Rebuild All to compile your application 9 If the following window pops up you may disregard it The message is generated by ActiveSync while developing a mobile application Your computer is not a mobile device x Error Connection was not created 10 When you complete your application upload it to the embedded computer 11 Log on the embedded computer and execute the program at the console prompt Debugging an eMbedded Visual C 4 0 Application 1 Open eMbedded Visual C 4 0 2 Choose Tools on the main menu bar and then Configure Platform Manager 3 Choose button Properties Windows CE Platform Manager Configuration Select a platform or device to configure DAGG0CE Add Device STANDARDSDK_420 UCT400CEL 2 Delete Pay UCTA00CEI 2 Device Windows CE Default Platform Properties About 4 Select TCP IP Transport for Windows CE from box Transport and select Man
28. anup fendif return 0 C Example Message Queue MessageQueue cpp Defines the entry point for the console application include stdafx h include lt windows h gt include lt commctrl h gt define QUEUE NAME L MQ DEMO struct DATA t unsigned int id BYTE pData DWORD dwLen BOOL bQuit FALSE CRITICAL_SECTION cs int getRand int nID define CLIENTS 5 DWORD thread_main LPVOID PPARAM MSGQUEUEOPTIONS msq DATA t m_data DWORD dwRead dwflags DWORD dwDataRecvCount CLIENTS DWORD dwDataRecvBytes CLIENTS for int i 0 i lt CLIENTS i dwDataRecvCount i 0 dwDataRecvBytes i 0 msq dwSize sizeof MSGQUEUEOPTIONS msq bReadAccess TRUE Read permission msq dwMaxMessages 0 Set the max messages number of message queue to be INFINITE msq dwFlags MSGQUEUE_NOPRECOMMIT MSGQUEUE ALLOW BROKEN msq cbMaxMessage sizeof _DATA t assign to message data structure size create a read only message queue HANDLE hMsq CreateMsgQueue QUEUE_NAME amp msq printf Press Enter to leave program n 3 27 Windows CE Programmer s Guide Programming Examples while TRUE waiting for data goes into the Message Queue switch WaitForSingleObject hMsq 500 case WAIT OBJECT 0 read data from message queue if ReadMsgQueue hMsq amp m data sizeof m data amp dwRead INFINITE amp dwflags dwDataRecvCoun
29. ed int data this function gets the current digit level of a specified port lt hndl gt handle created by mxdio init lt port gt port number 0 7 Return DIN EVENT LOW TO HIGH or DIN EVENT HIGH TO LOW 0 or 1 int mxdio get dout HANDLE hndl unsigned int port To use the library mxdev lib include file moxa devices h in your program The following example shows a simple mechanism to use the library include lt moxa devices h gt DIOHANDLER port0 process printf port_0O_process d t d t ld n port type syst_tick DIOHANDLER port1_process printf port_1l_process d t d t ld n port type syst_tick int WINAPI WinMain HINSTANCE hInstance HINSTANCE hPrevInstance LPTSTR lpCmdLine int nCmdShow HANDLE h mxdio init if h NULL printf fail to init n return 1 mxdio set input event h 0 port0 process DIN EVENT LOW TO HIGH 30 mxdio set input event h 1 portl process DIN EVENT HIGH TO LOW 20 mxdio dispatch h return 0 All the callback functions have the same format unsigned int port unsigned int type unsigned sys_tick Name each of the functions and enter the logic of your application inside it 3 17 Windows CE Programmer s Guide Programming Examples In the example shown above the dispatcher checks digit level changes every 20 milliseconds and every 30 milliseconds from the moment that the dispatcher function mxdio_d
30. em Console ReadLine int Parse sin display the digital input status for i 0 i lt 8 i value moxa uc7400 DigitalInput Get i System Console WriteLine Din 0 1 i value break case 2 display the digital output status for i 0 i lt 8 i value moxa uc7400 DigitalOutput Get i System Console WriteLine DOut 0 1 i value break case 3 set the digital output status System Console Write DOut port 3 7 Windows CE Programmer s Guide Programming Examples sdout System Console ReadLine port int Parse sdout System Console Write DOut value sdout System Console ReadLine value int Parse sdout if moxa uc7400 DigitalOutput Set port value System Console WriteLine set dout failed break for i 0 i lt 8 i value moxa uc7400 DigitalOutput Get i System Console WriteLine DOut 0 1 i value break sin System Console ReadLine n int Parse sin while n 0 C Example LCM UC 7410 CE UC 7420 CE Certain models of embedded computer have an LCM with text display managed by a pre installed internal service On these models you can program a simple interface for your application For UC 7400 models the LCM is 8 x 16 characters for DA 66x models the LCM is 2 x 16 characters Select the appropriate library and set the display location accordin
31. ernernrenennervrenereresnesnne 2 2 Debugging an Application with Visual Studio 2005 esvrevevnornrrvrrnererervrerarnernrenernsrerenereresnessne 2 2 Developing an eMbedded Visual C 4 0 Application sornorvronoronnvnornrrnennvrvrenennervrennreresnesnee 2 5 Debugging an eMbedded Visual C 4 0 Application esornorororororernornrrnennvrvrnvernervrevereresnesnne 2 7 Programming Examples rrnnnnnnvnnovnnnnnnnnnnnnnnnnvennnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnevevnne 3 1 Before You Begin Programming resnrvvavrevnrrvavnennrrvrnnvrerevnnevaenennsrvesnersrennrsvanennssvesnesnssnennsesreneee 3 2 Understanding the File System srenernvrnronennvrvrnnererernernaenennsrsrenereresvernaenesnsevsevereresnesnne 3 2 Use the Flash Memory Cautiously ssoronnnororovnnsnnvnennrrvrnnenererneneneresnernsenennsevsenereresnesene 3 2 Storing Data in RAM vs Flash Memory eevonororororevevnernrrvvnnererervrereenernsrvennererevvesresner 3 3 Message Queue Programming esvrovnrnvnnnvnnnnvnnnvennvrsvevevsvenaveravvrarvrervensneevvennvennvesvvesvsver 3 3 Visiial CH Ex mples asustssedkr tenesten eat feed 3 3 C Example Moxa UART RS 232 422 485 rrrnonnrrvnnnererernrenrenernrrvrenererevsnnereresvesnee 3 4 C Example Buzzer UC 74XX CE DA 66X CE UC 712X CE nsere 3 6 C Example Digital I O UC 7408 CE IA 26X CE V468 CE secese 3 7 C Example LCM UC 7410 CE UC 7420 CE nnnvnvarnennvrvrnvererevnnrvrenennrevsenereresnesnne 3 8 C Example F
32. etails please refer to example code Visual C Examples A device Net CF 2 0 class library mxdevice dll is provided to simplify application development with Visual Studio 2005 tools This library covers the Net CF Class Library for the buzzer LCM function keys and digital I O devices To link the library with your Visual Studio 2005 project environment perform the following steps from your Visual Studio 2005 tool 1 Copy the library file mxdevice dll to any folder on your local disk This file can be found on the product CD in the folder sdk dot Net Compact Framework Library or the file can be downloaded from the FTP site listed in the NOTE at the bottom of this page 2 Open the Visual Studio 2005 IDE tool and then add a new C Smart device console application 3 Enter the project name and location path Inthe Solution Explorer View add mxdevice dll to the reference section 5 Click OK Solution Explorer test v I X fa 2 2 oz Solution test 1 project Gd Properties og References AT Sy 43 System Data 43 System Xml Program cs 3 3 Windows CE Programmer s Guide Programming Examples NOTE The programming examples for Moxa embedded computers are frequently updated The latest examples can be downloaded from the following FTP site ftp esource moxa com moxasys WinCE_Examples C C Example Moxa UART RS 232 422 485 The following code is a C sample program for the trans
33. for developing applications with managed code are not installed on this development workstation If you continue this installation you cannot use this SDK to develop applications that use managed code but you can view Help documentation related to managed code development To fully install this SDK for managed code development install the appropriate software development tools and then run the Setup Wizard again To determine which software development tools are required see this Microsoft Web site at http g0 microsoft com fedink linkid 185398ckid 0 x409 which you can open in an external browser window by clicking the Open Browser button 3 Assuming that you have saved these two files as dotnetfx and setup take the following steps to install the tools e Execute the program dotnetfx e Install Net Framework by executing the program setup Next reinstall the Moxa SDK 1 Read the License Agreement and if you accept the terms of the end user license agreement EULA click the Accept radio button and then click Next i UC7400CESDK1_0 License Agreement End User License Agreement Be sure to carefully read and understand the Following end user license agreement me and then indicate whether you accept or do not accept the terms of the agreement This software will not set up on your computer unless you accept the terms of the agreement For your future reference you may print the text of the agreement now using the PRI
34. g to your model The following example transmits text to the LCM service on a UC 7400 using System using System Collections Generic using System Text using moxa namespace test class Program static void Main string args Create the LCM obejct moxa uc7400 LCM lcm new moxa uc7400 LCM display the LCM width and height System Console WriteLine Width lcm width ToString System Console WriteLine Height lcm height ToString clear LCM screen lcm cls write append message to the LCM lcm write abcdefg write message to the specific location X 4 y 2 lom write 1234567 4 2 Windows CE Programmer s Guide Programming Examples C Example Function Keys UC 7410 CE UC 7420 CE For embedded computers with programmable function keys your application can drive them as shown in the following code examples For example your program can control a specified function key to trigger another application or switch your program between different operation modes An internal service is pre installed and mimics key presses for your application Your application needs to register a key press with the service Once the key press is detected the service notifies your application via a software interrupt Your application can then operate on your logic using System using System Collections Generic using System Text using moxa namespace fkey class Program
35. ispatch is called If there is any change the associated callback function is initiated C Example LCM UC 7410 CE UC 7420 CE Certain models of embedded computer have an LCM with text display managed by a pre installed internal service On these models you can program a simple interface for your application For UC 7400 models the LCM is 8 x 16 characters for DA 66x models the LCM is 2 x 16 characters Select the appropriate library and set the display location according to your model The following example transmits text to the LCM service on a UC 7400 include lt windows h gt include lt moxa devices h gt int WINAPI WinMain HINSTANCE hInstance HINSTANCE hPrevInstance LPTSTR l1pCmdLine int nCmdShow HANDLE hndl char buf Hi hello World nabcdefg n n1234567890 unsigned int w h x y hndl mxlcm_open amp w amp h if hndl return 1 x 2 y 1 mxlcom_clear hnd1l mxlcm write hndl buf strlen buf amp x amp y mxlcm_close hnd1l return 0 Upon detecting the character n or r in the received text the internal service forces a down shift of a line on the display screen In addition the service scrolls up a lengthy portion of text by dropping its leading part in order to fit the area of the LCM display open a handle to the LCM devie lt lcm_w gt the function outputs the width of the LCM display to this pointer lt lcm_h gt the function outpu
36. library mxdev lib offers the following APIs define FKEYHNDL f int f void param initialization int mxfkey init void stop void mxfkey stop void register an operation to a keypad lt key gt a pointer to a string F1l F5 lt cb gt a callback function to be trigger when the associated keypad is pressed lt param gt parameters that would be carried to the callback function Return zero in success int mxkey_register char key FKEYHNDL cb void param All you need to do is register your callback function to an associated function key on the keypad using the format unsigned int key void param The argument param is used to transfer your private data to the callback function include lt windows h gt include lt moxa devices h gt FKEYHNDL keyF2 printf keyF2 is pressed n return 0 FKEYHNDL keyF3 printf keyF3 is pressed n return 0 int WINAPI WinMain HINSTANCE hInstance HINSTANCE hPrevInstance LPTSTR lpCmdLine int nCmdShow HANDLE hEvent DWORD rtn if mxfkey init return 1 rtn mxfkey register F2 keyF2 0 if rtn return 1 rtn mxfkey register F3 keyF3 0 if rtn mxfkey stop return 1 Windows CE Programmer s Guide Programming Examples hEvent CreateEvent NULL FALSE FALSE NULL WaitForSingleObject hEvent 20000 mxfkey stop return 0 C Example TCP C
37. lient and TCP Server The following is an example of TCP client server programming To build a server program compile this sample code in the eVC4 0 tool with library ws2 lib to build a client program compile same exact code in a Windows development tool such as Visual Studio 6 0 with library wsock32 lib include lt stdlib h gt include lt stdio h gt include lt time h gt include lt ctype h gt include lt string h gt include lt windows h gt include lt winsock h gt include lt stdarg h gt ifdef _WIN32_WCE define RNADOM SEED GetTickCount define ipc_create_thread t a CreateThread NULL 0 t a 0 NULL else include lt sys types h gt include lt sys stat h gt include lt process h gt include lt errno h gt define RNADOM SEED time 0 define ipc_create_thread t a _beginthread t 0 a fendif ifndef INADDR NONE define INADDR NONE Oxffffffff fendif define MAX BUF LEN 1024 define MAX SOCKETS 64 typedef struct _HINFO char hostname 64 int port int fd HINFO typedef struct _SOCKCONN int port int fd SOCKCONN Global Variables typedef struct _global_t fd_set read_fds int max_fd SOCKCONN clients MAX_SOCKETS int client_num SOCKCONN servers MAX SOCKETS int server_num global t 3 20 Windows CE Programmer s Guide global_t global ifndef _WIN32_WCE client program
38. ly used by applications to control timing issues If your application needs the RTC value you may copy and paste the following code into your application using System using System Collections Generic using System Text using moxa namespace test class Program static void Main string args get the RTC time moxa mxdevice SYSTEMTIME systime moxa uc7400 RTC getRTC System Console WriteLine Year systime Year ToString System Console WriteLine Month systime Month ToString System Console WriteLine Day systime Day ToString System Console WriteLine Hour systime Hour ToString System Console WriteLine Minute systime Minute ToString System Console WriteLine Second systime Second ToString C Example TCP Server using using using using using System System Collections Generic System Text System Net System Net Sockets namespace socketsvr class Program static void Main string args 3 10 Windows CE Programmer s Guide try if args Length 0 System Console WriteLine e g tcpsvr port n return Set the TcpListener on port 13000 Int32 port int Parse args 0 System Console WriteLine Listening port args 0 TcpListener server new TcpListener port Start listening for client requests server Start Buffer fo
39. mission of data to serial port COM3 This serial port can be configured to support RS 232 RS 422 or RS 485 operation mode This program also receives messages from the serial port by using an event based function using System using System Collections Generic using System Text using System Data using System Runtime InteropServices using System Collections Specialized using System IO Ports namespace MxSerialPort class MxComPortConfig DllImport coredll dll EntryPoint CreateFileW SetLastError true private static extern IntPtr CECreateFileW string lpFileName UInt32 dwDesiredAccess UInt32 dwShareMode IntPtr lpSecurityAttributes UInt32 dwCreationDisposition UInt32 dwFlagsAndAttributes IntPtr hTemplateFile DllImport coredll dll EntryPoint CloseHandle SetLastError true private static extern Int32 CECloseHandle IntPtr hObject DllImport coredll dll EntryPoint Sleep SetLastError true private static extern void CESleep UInt32 dwMilliseconds DllImport coredll dll EntryPoint DeviceIoControl SetLastError true public static extern bool DeviceIoControl IntPtr hDevice uint dwIoControlCode ref byte lpInBuffer int nInBufferSize ref byte lpOutBuffer int nOutBufferSize ref int lpBytesReturned IntPtr lpOverlapped const uint MOXA_SET_OP_MODE 0x400 66 const uint MOXA_GET_OP_MODE 0x400 67 const uint RS232_MODE 0 const
40. o not need these tools Otherwise cancel the process and download appropriate files from the Microsoft site For example if a dialog such as the following pops up download the following two files Microsoft NET Framework Version 2 0 Redistributable Package x86 25 MB Windows CE Programmer s Guide Installing Development Tools http www microsoft com downloads details aspx FamilyID 0856EACB 4362 4B0D 8EDD AAB15CS5E04F5 amp displaylang en NET Framework 2 0 Software Development Kit SDK x86 354 MB http www microsoft com downloads details aspx FamilyID FE6F2099 B7B4 4F47 A244 C 96D69C35DEC amp displaylang en ie UC7400CESDK1 0 Setup Software development tools required to use this SDK for developing applications with native code are not installed on this development workstation If you continue this installation you cannot use this SDK to develop applications that use native code but you can view Help documentation related to native code development To fully install this SDK for native code development install the appropriate software development tools and then run the Setup Wizard again To determine which software development tools are required see this Microsoft Web site at http go microsoft com Fulink linkid 186398 amp clcid 0x409 which you can open in an external browser window by clicking the Open Browser button 15 UC7400CESDK1 0 Setup Software development tools required to use this SDK
41. ocking int f long val 1 if ioctlsocket f FIONBIO amp val 0 printf tcp_set_nonblocking fentl n return 1 else return 0 turn on TCP IP keepalive messages int tcp_set_keepalive int f int on if setsockopt f SOL SOCKET SO_KEEPALIVE void amp on sizeof on 1 printf set keepalive setsockopt n return 1 return 0 a nonblocking and keepalive socket static int new_socket void int f socket AF_INET SOCK_STREAM 0 if f lt 0 return 1 if tcp set nonblocking f closesocket f return 1 if tcp_set_keepalive f 1 closesocket f return 1 3 23 Windows CE Programmer s Guide Programming Examples return f bind a socket on a specific interface static int bind_interface int fd unsigned int ip int port struct sockaddr_in sin memset amp sin 0 sizeof sin sin sin_family AF_INET sin sin addr s addr ip ip htonl INADDR_ANY sin sin_port htons unsigned short port if bind fd struct sockaddr amp sin sizeof sin lt 0 printf bind interface bind n return 1 return 0 a client connection int make_client_connection const char host unsigned short port ip struct sockaddr_in sin int f memset amp sin 0 sizeof sin sin sin port htons port sin sin family AF INET if host amp amp ip ret
42. ols Window Help Er EE T R Afm Status Globals gt All global members 6 WinMain 15232 Eige gt hFro amp DaABoOB A HINSTANCE hPreuinstance LPISTR 1pcnoline int nCnd Show f 1000 WCHAR DCB int DWORD Place code here sPort 20 dcb i 4 nNewBaudRate 8 if weslen lpCndLine t O nNewBaudRate _wtol iplndl ine menset buf O BUFFERLEN For i 0 i BUFFERLEN i t Context Winbtain HINSTANCE HINSTANCE__ unsign i Name EB deb Fiesp i 8 Value nNewBaudrRate 69632 sPort 20 8 Gy Auto Locals gt this 7 Warchl Wach Warch3 Ln 127 Col 30 Wach 3 Programming Examples In this chapter we present Q Before You Begin Programming gt gt gt gt Understanding the File System Use the Flash Memory Cautiously Storing Data in RAM vs Flash Memory Message Queue Programming Q Visual C Examples gt VVVVV VV C Example Moxa UART RS 232 422 485 C Example Buzzer UC 74XX CE DA 66X CE UC 712X CE C Example Digital I O UC 7408 CE IA 26X CE V468 CE C Example LCM UC 7410 CE UC 7420 CE C Example Function Keys UC 7410 CE UC 7420 CE C Example Real time Clock UC 74XX CE DA 66X CE C Example TCP Server C Example TCP Client Q Visual C Examples VVVV VV V C Example Moxa UART RS 232 422 485 C Example Buzzer UC 74XX CE DA 66X CE C
43. ontroller acts as a bridge between the FAT file system and the memory space and provides BBM Bad Block Management and wearing level management The BBM feature allows the FAT file system to flag and skip any bad blocks The wearing level feature works by writing data evenly over the entire area of the flash memory 3 2 Windows CE Programmer s Guide Programming Examples Storing Data in RAM vs Flash Memory Although data saved in RAM will be deleted when the system shuts down RAM storage has the advantages of faster read write access and no life cycle For applications that require transmitting important data immediately and directly to a host you can store the necessary log data in RAM After the host receives the data the data does not need to be retained and can be deleted Since embedded computers have resource limits integrators must store data wisely In general you should only store data when you need to and you should be sure to use the most appropriate storage medium Message Queue Programming Under an ARM platform file system reads writes are a big load on the Windows CE operating system In general cases of serial to Ethernet programming we recommend using the Message Queue to receive serial data and avoid serial data receiving overrun problems There are special programming techniques associated with using Message Queue We recommend keeping data block less then 1 KB and wait 200 ms between every read write For d
44. ovide more storage space than the onboard flash We recommend that the onboard NOR flash be used for storing programs only For log data generated by your programs use external storage media such as CF or SD cards These cards are much easier to replace if the card is damaged or the storage space is used up Furthermore there is much more storage space available on CF and SD cards than in the NOR flash memory Use the Flash Memory Cautiously The onboard NOR flash memory has a life cycle of 100 000 write operations at the block level each block can store 128 KB of data Since the NOR flash does not support BBM Bad Block Management a FAT file system will not know whether or not the flash block has reached the end of its life cycle As a result the FAT file system will continue scanning a bad block again and again eventually reaching an unstable state Since the FAT file system searches for free space sequentially when performing write operations free storage space becomes more and more fragmented as files are deleted making it difficult to search the space Moreover when a file is updated frequently data is deleted and rewritten to the same flash blocks over and over again Eventually the FAT file system will be unable to read those blocks causing the operating system to hang Although CF and SD cards also have life cycles most cards use NAND flash memory in conjunction with hardware controllers to maximize the life cycle The hardware c
45. r If you do not install the latest service pack for Net Compact Framework 2 0 you may encounter problems when using Visual Studio 2005 s on line debugging function Installing Visual Studio 2005 VB NET C developers should follow this sequence when installing Visual Studio 2005 1 Install Visual Studio 2005 2 Uninstall Microsoft NET CF 2 0 3 Install Microsoft INET CF 2 0 Service Pack C C developers should follow this sequence when installing Visual Studio 2005 1 Install Visual Studio 2005 2 Install Moxa Windows CE C C SDK For the details on system requirements and installation procedures please refer to Microsoft s documentation or to MSDN Uninstalling Microsoft Net Compact Framework 2 0 Open the Control Panel and locate Net Compact Framework 2 0 1 Select Remove and click Next to proceed ompect Framework 2 0 Setup Wizard xj Program Maintenance Modify repair or remove the program C Modify Change which program features are installed This option displays the Custom Selection dialog in which you can change the way features are installed Repair installation errors in the program This option fixes missing or corrupt files shortouts and registry entries Remove Remove Microsoft NET Compact Framework 2 0 from your computer lt Back Cancel 1 2 Windows CE Programmer s Guide Installing Development Tools 2 Click Remove to confirm that you would like
46. r reading data Byte bytes new Byte 1024 String data null Byte rbytes new Byte 1024 Byte bl Byte a for int j 0 j lt 1024 j bytes j bl if bl Byte z bl Byte a else bl Perform a blocking call to accept requests You could also user server AcceptSocket here TcepClient client server AcceptTcpClient data null Get a stream object for reading and writing NetworkStream stream client GetStream Int32 i Int32 TotalCount 10000000 Int32 TotalBytes 0 while true if TotalCount 0 break Loop to receive all the data sent by the client stream Write bytes 0 bytes Length while stream DataAvailable i stream Read rbytes 0 rbytes Length TotalBytes i TotalCount Shutdown and end connection client Close Console WriteLine String Format TotalBytes 0 SendTimes 1 TotalBytes TotalCount catch SocketException e Console WriteLine SocketException 0 e 3 11 Programming Examples Windows CE Programmer s Guide Programming Examples C Example TCP Client using System using System Collections Generic using System Text using System Net using System Net Sockets namespace socketcli class Program static void Main string args if args Length 2 System Console WriteLine socketcli ip return
47. rm for critical errors You may set the frequency and the duration of the buzzer at the application level by using the APIs within mxdevice dll The following example code triggers the buzzer for 50 milliseconds at frequency 2200 Hz Example Code for UC 74XX CE and DA 66X CE using System using System Collections Generic using System Text using moxa namespace test class Program static void Main string args moxa uc7400 Buzzer Beep 2200 50 Example Code for UC 712X CE 3 6 Windows CE Programmer s Guide Programming Examples using System using System Collections Generic using System Text using moxa namespace test class Program static void Main string start buzzer args moxa uc712x Buzzer BeepoOn wait 20 milliseconds System Threading Thread Sleep 20 stop buzzer moxa uc712x Buzzer BeepOff C Example Digital I O UC 7408 CE IA 26X CE V468 CE Digital input output channels are featured in some models of embedded computer These channels can be accessed at run time for control or monitoring using the following example program using System using System Collections Generic using System Text using moxa namespace test class Program static void Main string int i 0 int port 0 string sdout string sin int n do ww f switch n case 1 value 0 args value2 0 Syst
48. sure that no other ActiveSync device is connected to your workstation Find the six files listed below on your PC The files are usually located in the folder C Program Files Common Files Microsoft Shared CoreCon 1 0 Target wce400 lt CPU architecture gt Copy the files from that folder to your embedded computer Clientshutdown exe CMAccept exe ConmanClient2 exe DeviceDMA dll eDbgTL dl TcpConnectionA dll Log onto the embedded computer and run conmanclient2 exe in the background by entering the following command gt start conmanclient2 exe Run CMAccept exe in the background by entering the following command gt start CMAccept exe NOTE This program accepts a connection from Visual Studio 2005 and immediately ends For a new connection run the program again Open a Visual Studio 2005 Smart Device project You may also start a new project as follows New Project gt Select project type gt Choose Smart Device gt Select templates gt Give a project name gt Click OK 2 2 Windows CE Programmer s Guide Application Development New Project Project typas Templates 5 Visual C Visual Studio installed templates Windows gt Office F Devis Application Che Libery Smect Device Contrn Library Corak Application Pocket PC 2003 k Project a hone 2003 Empty Prajec i Database My Templates Starter Kits k Dt Search Online Template E Other Languages E Other Project Types H
49. t m_data id 1 dwDataRecvBytes m_data id 1 m data dwLen printf Nr for int j 0 j lt CLIENTS j printf ID d 3d 5d j 1 dwDataRecvCount j dwDataRecvBytes j break case WAIT_TIMEOUT break case WAIT_FAILED printf WAIT_FAILED d n GetLastError break default break if bQuit break close message queue CloseMsgQueue hMsq return 0 DWORD thread_collectdata LPVOID pnIndex int nID int pnIndex MSGQUEUEOPTIONS msq msq dwSize sizeof MSGQUEUEOPTIONS msq bReadAccess FALSE Write permission msq dwMaxMessages 0 Set the max messages number of message queue to be INFINITE msq dwFlags MSGQUEUE_NOPRECOMMIT MSGQUEUE ALLOW BROKEN msq cbMaxMessage sizeof _DATA t assign to message data structure size create a write only message queue HANDLE hTask CreateMsgQueue QUEUE_NAME amp msq while TRUE DATA t data data id nID Write ID to identify who I am data pData NULL not use data dwLen getRand nID get random number write data into message queue WriteMsgQueue hTask amp data sizeof data INFINITE 0 sleep few times Sleep nID 200 if bQuit break 3 28 Windows CE Programmer s Guide Programming Examples close message queue CloseMsgQueue hTask return 0 int getRand int nID EnterCriticalSection amp cs Seed the random number
50. the information in this manual to correct such errors and these changes are incorporated into new editions of the publication Technical Support Contact Information www moxa com support Moxa Americas Moxa Europe Toll free 1 888 669 2872 Tel 49 89 3 70 03 99 0 Tel 1 714 528 6777 Fax 49 89 3 70 03 99 99 Fax 1 714 528 6778 Moxa Asia Pacific Moxa China Beijing office Tel 886 2 8919 1230 Tel 86 10 6872 3959 60 61 Fax 886 2 8919 1231 Fax 86 10 6872 3958 Chapter 1 Chapter 2 Chapter 3 Table of Contents Installing Development TOOIS rnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnenenennr 1 1 Visual Studio 2005 us ssatet spasere free bed asked eden Sos aed 1 2 Installing Visual Studio 2005 ererorerovnrsnrenennvrvrnnereresnesnrenennrevrenererasnesvaenennssnssnennssvsenese 1 2 Uninstalling Microsoft Net Compact Framework 2 0 sernrrvrnvorerevnrrnrenennrevsenernervrenere 1 2 Installing the Net Compact Framework 2 0 with Service Pack srenrrnornrrvrrnennrrvrenere 1 4 eMbedded Visual C CVC 4 0 1 rsrrreronornrrrrnnvnrrnnrrvrrennrvrrsrnnversnnrnvsrenvsrsrrnnvsrrsnrsrsrsnnrsssssnnnsrsnnn 1 6 Moxa Wind ws CE C C 4SDK i eiere ia cesta ssvesosptonsessbeisnapepsardiadhasepassueoedoonnaceensestogbests 1 6 Application Development runnnnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnvnnnnnnnnnnnnnnnver 2 1 Developing an Application with Visual Studio 2005 ssrerevnorvrrvernererervrer
51. to remove the software Remove the Program You have chosen to remove the program From your system Uninstalling Microsoft NET Compact Framework 2 0 The program features you selected are being uninstalled 4 Click Finish to exit th soft NET Compact F 2 0 Setup Wizard e wizard Setup Wizard Completed Compact Framework 2 0 Click Finish to exit the wizard You may now install Service Pack 1 for Net Compact Framework 2 0 1 3 Windows CE Programmer s Guide Installing Development Tools Installing the Net Compact Framework 2 0 with Service Pack 1 Wait while the Windows Installer prepares to install the software Wi er 2 Preparing to install Welcome to the Setup Wizard for Microsoft NET Compact Framework 2 0 SP1 The Setup Wizard will install Microsoft NET Compact Framework 2 0 SP1 on your computer To continue click Next WARNING This computer program is protected by copyright law and international treaties Unauthorized duplication or distribution of this program or any portion of it may result in severe civil or criminal penalties and will be prosecuted to the maximum extent possible under 3 Select I accept the terms in the license agreement and click Next to proceed License Agreement You must accept the enclosed License Agreement before you can use this pro accept the terms of the License Agreement you are not
52. ts the height of the LCM display to this pointer Return nonzero value in success HANDLE mxlcm_open unsigned int lcm_w unsigned int lcm_h write text to the LCM device at a specify coordinate lt hndl gt the open handle lt buffer gt text lt len gt the length of the text lt lcm x gt and lt lcm y gt pointers to the coordinate of the starting position of the text the function would output the ending coordinate of the text to these pointers This function returns the number of written bytes int mxlcm_ write HANDLE hndl char buffer unsigned int len unsigned int lom_x unsigned int lcm_y close the handle void mxlcm_close HANDLE hndl clear the LCM screen void mxlcm_clear HANDLE hndl 3 18 Windows CE Programmer s Guide Programming Examples C Example Function Keys UC 7410 CE UC 7420 CE For embedded computers with programmable function keys your application can drive them as shown in the following code examples For example your program can control a specified function key to trigger another application or switch your program between different operation modes An internal service is pre installed and mimics key presses for your application Your application needs to register a key press with the service Once the key press is detected the service notifies your application via a software interrupt Your application can then operate on your logic In the application level
53. ual Server from box Startup Server Choose OK Device Properties Device Name UCT4D0CEI 2 Device Select a transport and a startup server Choose Test to verify that you can establish a connection to your target device with the selected transport and startup server Transport CPAP Transport for Windows CE vi Configure Startup Server Cancel Test 2 7 Windows CE Programmer s Guide Application Development 5 Back to eMbedded Visual C 4 0 and open or create a project 6 Select the right SDK and the Win32 WCE ARMV4I DEBUG option Wi 232 Microsoft eMbodded Visual C 1e232 cpp Bk mt ev buer Pojet Bull Tools Window Help la sH rel IIE jm Status Hale Hi gt BPH 4 a frs232 vera UC7400CE1 2 Je WCE ARMVAI Debug E C7400CE1 2 Device Jeu be 408 By 07 17 BAUDRATE 7 Br Oy NJ 9 A A A A 18 BAUDRATE N 0 E Hrsz rs232 32 classes H SEND RECV 9 Globals 37 nendiF void SettineDut HANDLE Port int MSec int WINAPT WinMain HINSTANCE hInstancd HINSTANGE hPrevInstance LPTSTR IpCmdLine int n mdShouw TODO Place code here UCHAR sPort 20 DEB dcd int i 0 DUORD nNewBaudRate f3 if wcslen lpcmdLine t 0 nHeuBaudRate _utol lpCnmdLine menset buf 0 BUFFERLEN for i 0 i lt BUFFERLEN itt 907 Build Debug Findin Files FindinFiles2 7 Passed the end of the file in 118 Cotag Vor JOVA
54. unction Keys UC 7410 CE UC 7420 CE errorrrervrnvnrevvnnvrrnvevvrevveren 3 9 C Example Real time Clock UC 74XX CE DA 66X CE secere 3 10 C Example TCP Servet or e co aE oea vu ateek E E rE lets ce tek eee 3 10 CH Example TCP Chente eee ted a iin ead is eit ee es 3 12 Visual CAE XAMples Janssen ee ressurs 3 13 C Example Moxa UART RS 232 422 485 eeronnnrnrnnvnnvrerernrenernernrenernrrerersnsvevnere 3 14 C Example Buzzer UC 74XX CE DA 66X CE rrrrnnrnrennvrrnrnvenrnnrnrnverenerrsvenner 3 16 C Example Digital I O UC 7408 CE IA 26X CE V468 CE ernnvrerernrrnrrrnvnere 3 16 C Example LCM UC 74 10 CE UC 7420 CE serurnnorerernernrvnennvrvrevennsrerervrvresnene 3 18 C Example Function Keys UC 7410 CE UC 7420 CE J rrsrernnrnrvvennrrvrernrnererere 3 19 C Example TCP Client and TCP Server ssrenavnnrnrnnennervrnvnnerarnernrenennsrvsesennererere 3 20 C Example Message Queue urenanvnnnnnnrnnnnnnnnvnnnnrnnersnvrsnrvenaverareraevrarvrarnessnessvesner 3 27 Appendix A Frequently Asked Questions rrnssvrnnnnnnnvnnnnnnnvnnnnnnnnvnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnn A 1 1 Installing Development Tools A number of well known Integrated Development Environments IDE tools can be used to ease the development of applications on Moxa Windows CE embedded computers Choose the tools based on the application language that you plan to use and then install the tools on your development workstation
55. urn 1 if host ip lookup ip host if ip 0 return 1 sin sin addr s addr ip if new socket 1 return 1 printf connecting to s at port huln inet ntoa sin sin addr ntohs sin sin port unsigned int if connect f struct sockaddr amp sin sizeof sin lt 0 if h_errno WSAEINPROGRESS amp amp h_errno WSAEWOULDBLOCK closesocket f return 1 printf nonblocking yet connected to s n host else printf connection ok to s n host return f int tcp_startup_server unsigned int iface int port int sockfd struct in_addr addr if sockfd new_socket lt 0 return 0 3 24 Windows CE Programmer s Guide Programming Examples if bind_interface sockfd iface port 1 return 0 if listen sockfd 5 lt 0 return 0 addr s_addr iface printf startup a server s at port d n inet_ntoa addr port return sockfd void enable_read int fd FD_SET unsigned int fd amp global read fds if global max_fd lt fd global max_fd fd void disable_read int fd FD CLR unsigned int fd amp global read fds void accept connection int fd unsigned int sinsize struct sockaddr_in sin sinsize sizeof sin fd accept fd struct sockaddr amp sin amp sinsize if fd gt 0 enable_read fd global clients global client num fd fd
56. wing macro definitions The DeviceloControl function should be inserted on the open handle before the program performs read write operations extracted from lt moxa devices gt define MOXA_SET_OP_MODE 0x400 66 define MOXA_GET_OP_MODE 0x400 67 define RS232 MODE 0 define RS485 2WIRE MODE 1 define RS422 MODE 2 define RS485_4WIRE_MODE 3 for example set the mode to 4 wire RS485 BYTE mode RS485 4WIRE MODE DeviceIoControl hCom MOXA SET OP MODE amp mode sizeof mode NULL 0 NULL NULL for example get the current mode BYTE mode size DeviceIoControl hCom MOXA GET OP MODE NULL 0 LPVOID amp mode sizeof mode amp size NULL C Example Buzzer UC 74XX CE DA 66X CE The embedded computer supports hardware buzzers that applications can use as an alarm for critical errors You may set the frequency and the duration of the buzzer at the application level by using the APIs within mxdev lib The following example code triggers the buzzer for 2000 milliseconds at frequency 500Hzs execute a beeper at a specified frequency for lasting a duration in miniseconds BOOL mxbeep unsigned int nHz unsigned int nMiniSec include lt moxa devices h gt int WINAPI WinMain HINSTANCE hInstance HINSTANCE hPrevInstance LPTSTR lpCmdLine int nCmdShow mxbeep 500 2000 return 0 C Example Digital I O UC 7408 CE IA 26X CE
57. work 1 0 CF1 0 Can I run it on the embedded computer A The target computer pre installs the version 2 0 engine which is compatible with version 1 0 Try executing your program on the computer directly If that does not work open the project CF1 0 with Visual Studio 2005 CF2 0 You may encounter migration messages and code warnings After making step by step modifications as instructed your program should be able to run on the embedded computer Q I have a Windows Visual C program Can I run it on the embedded computer A WinCE APIs is a subset of Win32 APIs Cares must be taken when migrating to it First create a Visual Studio 2005 smart device VC project Add all associated files into the project and rebuild the program You may see compiling errors which you should be able to correct by referring to the help pages Q I have a pure C program Can I run it in the embedded computer A Create an eVC4 project or Visual Studio 2005 Smart Device VC project Add your C files to your project and rewrite your main function to winmain or _tmain as generated by the tool Q Can I compile C C codes in Visual Studio 2005 other than eVC4 A Yes but you will still need the Moxa C C SDK Q How many concurrent applications can be run on the embedded computer A 32 applications can run concurrently on the embedded computer each with a 32M RAM limit for Windows CE 5 0 Q Are there code examples that show how to capture the
58. xt to proceed i UC7400CESDK1_0 Destination Folders Destination Folders Click Next to install to this Folder or click Change to install to a different folder Install UC7400CESDK1_0 to C Program Files Windows CE Tools wceSO0 UC7400CE1 0 lt Back E Next gt m Cancel 5 To install the SDK click Install i UC7400CESDK1_0 Setup Ready to Install The Setup Wizard is ready to begin the Complete installation Click Install to begin the installation IF you want to review or change any of your installation settings click 3ack Click Cancel to exit the wizard Windows CE Programmer s Guide Installing Development Tools 6 Wait patiently while the software is installed i UC7400CESDK1_0 Setup Installing UC7400CESDK1 O Please wait while the Setup Wizard installs UC7400CESDK1 0 This may take several minutes Status i UC7400CESDK1 0 Setup Completing the UC7400CESDK1 0 Setup Wizard Click the Finish button to exit the Setup Wizard 2 Application Development Application developers that are familiar with Windows IDE tools and application programming interfaces APIs will appreciate the versatility of scripting languages that is found with Windows CE and the NET Compact Framework environment The Moxa SDK enables developers to easily develop native code for Moxa embedded computers In this chapter we present examples using Visual Studio 2005 and eMbedded Visual C 4 0
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