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CAN-PC Interface

CPC–XTI

User Manual

EMS

THOMAS WÜNSCHE

Sonnenhang 3

D-85304 Ilmmünster

Tel +49-8441-490260

Fax +49-8441-81860

Documentation for CAN-Interface CPC-XTI.

Document version 1.3.

Documentation date: January 17th, 2005.

No part of this document or the software described herein

may be reproduced in any form without prior written

agreement from EMS Dr. Thomas Wünsche.

For technical assistance please contact:

EMS Dr. Thomas Wünsche

Sonnenhang 3

D-85304 Ilmmünster

Tel. +49-8441- 490260

Fax +49-8441- 81860

Email: support@ems-wuensche.com

Our products are continuously improved. Due to this fact

specifications may be changed at any time and without

announcement.

WARNING: CPC-XTI hardware and software may not be

used in applications where damage to life,

health or private property may result from

failures in or caused by these components.

CPC-XTI User Manual

ii EMS Dr. Thomas Wünsche

Summary of content (13 pages)

PAGE 1
CPC-XTI User Manual Documentation for CAN-Interface CPC-XTI. Document version 1.3. Documentation date: January 17th, 2005. No part of this document or the software described herein may be reproduced in any form without prior written agreement from EMS Dr. Thomas Wünsche. For technical assistance please contact: EMS Dr. Thomas Wünsche Sonnenhang 3 D-85304 Ilmmünster CAN-PC Interface Tel. +49-8441- 490260 Fax +49-8441- 81860 Email: support@ems-wuensche.
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User Manual CPC-XTI CPC-XTI User Manual THIS PAGE INTENTIONALLY LEFT BLANK Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 1.2 1.3 1.4 Attributes . . . . . . General description . Sample Applications Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 2 3 2 Software . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 2.2 2.3 2.4 2.5 2.
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User Manual 1 CPC-XTI CPC-XTI Overview application in 8 bit slots CPC-XTI can be used in space restricted conditions as well. Designed for industrial series applications CPC-XTI has a robust and cost efficient construction. 1.
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User Manual CPC-XTI 1.4 Ordering Information 10-04-201-20 10-04-211-20 CPC-XTI 2 User Manual Software The software consists of two parts. One part is executed by the microprocessor inside CPC-XTI. The application program runs on the PC and makes use of the interface library. CPC–104I/SJA1000S320-GTI CAN plug-in board with microcontroller Dallas 80C320 and 1 galvanically separated CAN channel with Philips SJA1000 2.
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User Manual CPC-XTI 2.3 Synchronous Interface main program command initiation wait for result command execution by CPC-XTI continue command initiation further program execution command execution by CPC-XTI use result EMS Dr. Thomas Wünsche User Manual 2.5 Data Structures and Library Functions Implementation of the main program with synchronous interface allows simple and clearly arranged programs with sequential control flow.
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User Manual CPC-XTI CPC-XTI User Manual struct CPC_CAN_MSG struct CPC_INIT_PARAMS Declaration: struct CPC_CAN_MSG{ unsigned short id; unsigned char length; unsigned char overrun; unsigned char msg[8]; }; Declaration: struct CPC_INIT_PARAMS{ struct CPC_CAN_PARAMS std_can_params; unsigned char secure_transmit; void interrupt (far * inthandler)(); }; Description: CPC_CAN_MSG serves for transfer of CAN messages between application program and interface library Description: The global variable CPC_I
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User Manual 2.5.2 CPC-XTI Synchronous Functions Syntax: #include cpc.h int CPC_CAN_Init(void); Description: CPC_CAN_Init() initialises the parameters of the CAN controller within CPC-XTI. The CAN-controller is set up with parameters supplied in the global structure CPC_Init_Params (declaration in cpc.h). These parameters can be changed before the call to CPC_CAN_Init(). CPC_CAN_Init is to be called before data transmission across the CAN is initiated. – CPC_Control Syntax: #include cpc.
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User Manual CPC-XTI CPC-XTI User Manual CPC_Get_Version CPC_Read_Msg Syntax: #include cpc.h char * CPC_Get_Version(void); Syntax: #include cpc.h void CPC_Read_Msg (struct CPC_CAN_MSG *); Description: CPC_Get_Version returns the version number of the connected CPC-PP module. Description: CPC_Read_Msg() receives a message from the CAN. The received communication object is stored in a structure of type CPC_CAN_MSG, which is indicated by the pointer passed on function call.
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User Manual CPC-XTI 2.5.3 CPC_Send_RTR Syntax: Description: CPC-XTI #include cpc.h int CPC_Send_RTR (struct CPC_CAN_MSG *); User Manual Functions for the Asynchronous Programming Interface CPC_Add_Handler CPC_Send_RTR() transmits a Remote-Transmission-Request message across the CAN. The function call passes a pointer to a structure of type CPC_CAN_MSG, which contains the communication object to be transmitted. Syntax: #include cpc.
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User Manual CPC-XTI CPC-XTI User Manual The installation program performs the following actions: CPC_Handle Syntax: #include cpc.h struct CPC_MSG * CPC_Handle(); Description: CPC_Handle() checks for availability of a new message from CPC-XTI. If a message is available, all asynchronous handlers are called in the sequence of their entry position with the new message as parameter. CPC_Handle() returns immediately, independant of the availability of a message.
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User Manual 3 CPC-XTI Electrical Characteristics CPC-XTI 4 3.1 Absolute Limiting Values User Manual Operation Instructions 4.1 Connection Scheme Any (also temporary) stress in excess of the limiting values may cause permanent damage on CPC-XTI. The CAN-interface-connector (D-Sub 9 male) complies to CiA Standard DS 102-1. The pin usage is detailed in the following table. Parameter Min. Max.
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User Manual CPC-XTI CPC-XTI User Manual The base address is set with jumper bank J1. The possible selections are listed in figure 2. 4.2 Configuration The configuration of the address space and used interrupt channel is achieved by jumpers on CPC-XTI. Their position on the board is indicated in figure 1.
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User Manual CPC-XTI CPC-XTI Execute the following steps for installation only if you have knowledge about and experience in installing PC plug-in boards: 4.3 Installation CPC-XTI may be installed in an empty expan-sion slot on the mainboard of IBM-XT or IBM-AT compatible computers. To avoid damage please pay attention to the following hints: • Disconnect the computer from the power line. • Open the case of the computer and remove the cover from the expansion slot rear panel.