Manual: CAN plugin card ISA/XT, passiv
Contents
1. 7 are available CPC XT can optionally be delivered with gal vanic decoupling to the CAN bus In this case power supply for the transceiver runs across the CAN bus or a DC DC converter EMS Dr Thomas W nsche EMS Dr Thomas W nsche CPC XT 1 3 Ordering Information 10 03 000 20 CPC XT 82527 CAN plug in board with CAN controller Intel AN82527 10 03 001 20 CPC XT 82527 GTI CAN plug in board with CAN controller Intel AN82527 galvanic separation with internal supply 10 03 041 20 CPC XT 82527 GTB CAN plug in board with CAN controller Intel AN82527 galvanic separation with supply from the bus 10 03 200 20 CPC XT SJA1000 CAN plug in board with CAN controller Philips SJA1000 10 03 201 20 CPC XT SJA1000 GTI CAN plug in board with CAN controller Philips SJA1000 galvanic separation with internal supply 10 03 241 20 CPC XT SJA1000 GTB CAN plug in board with CAN controller Philips SJA1000 galvanic separation with supply from the bus Note the CAN controller type PHILIPS 82C200 used on older boards has been replaced by the successor type PHILIPS SJA1000 These two controllers are de signed to be compatible but due to the enhanced ca pabilities of the SJA1000 the signature for the board with this controller was changed see table on page 4 User Manual Programming Interface CPC XT is mapped into the PC memory space with a base address in the area from C0000h2. CAN PC Interface CPC XT User Manual Sonnenhang 3 E M S D 85304 IImm nster Tel 49 8441 490260 THOMAS WUNSCHE Fax 49 8441 81860 CPC XT User Manual Documentation for CAN Interface CPC XT Document version 2 2 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 W nsche For technical assistance please contact EMS Dr Thomas W nsche Sonnenhang 3 D 85304 IImm nster 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 XT 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 ii EMS Dr Thomas W nsche User Manual CPC XT CPC XT User Manual Contents THIS PAGE INTENTIONALLY LEFT BLANK A au a ee See ee a 1 1 1 Attributes s os she eon OE Sod ae ald 1 1 2 General Description 2 1 3 Ordering Information 3 2 Programming Interface 4 3 Electrical Characteristics 6 3 1 Absolute Limiting Values 6 3 2 Nominalvalues 0 6 4 Operating Instructions 7 4 1 Pin configuration of CAN connector 7 4 2 Config
3. The CAN Interface connector D Sub 9 male complies to CiA Standard DS 102 The pin usage is detailed in the following table Pin 1 Reserved by CiA Pin 2 CAN_L CAN_L bus line dominant low Pin 3 GND Ground Pin 4 Reserved by CiA Pin 5 Reserved by CiA Pin 6 GND Optional ground inter nally connected to Pin 3 Pin7 CAN_H CAN_H bus line dominant high Pin 8 Reserved by CiA error signal Pin9 V CAN Power supply from CAN bus option GTB CPC XT User Manual 4 2 Configuration The configuration of the address space and the used interrupt channel is achieved by jum pers on CPC XT Figure 1 shows their posi tions on the board 0 3 a a o ma Bi 00000000 00000000 elololejoje J1 E E Interrupt 34 567 EMS Dr Thomas W nsche 7 8 EMS Dr Thomas W nsche User Manual CPC XT CPC XT User Manual The base address is set with jumper bank 1 the PC has enough capablility on its 12V line The possible selections are listed in figure 2 This feature does not provide protections against overvoltage overload short circuit or Base adress J1 Base adress J1 A other error conditions The use of this option is o00 0 0 0 0 001000 i ihaili ocoooon eleiele eje aa Eso in t
4. he responsibility of the user JODODONE eejeoys 0C2000h 19 0 0 0 0 0D2000h 0 0 ee pes eeyoyos 0C4000h 10 0 00 E 0D4000n 0 0 e 1lelelele 6 1 0 0 y oje y 6 OC6000h 0 0 0 O I OD6000h ele oo I isisleiysiel 1 ele pipe e ocsooon 0 0 0 l 0 0 0D8000h ojo 1 6 1 6 Zango e BALL opaooone e HES E 1 elee pipe e tele pype occoooh 9 90 o oDcoo0n e o 1leJojo 6 1lojo 6 oceooon eee HEE ODE000 oo HEHE Jumper bank 2 determines the used interrupt channel The settings can be seen in figure 3 the configuration for interrupt channel 5 is shown It is not allowed to set more than one jumper on this bank Jumper Allocation i Jumper J3 optional allows configurations wit hout galvanic decoupling to supply 12V from the PC to the CAN J3 may only be set if no ot her device supplies the CAN power line and EMS Dr Thomas W nsche 9 10 EMS Dr Thomas W nsche User Manual CPC XT CPC XT User Manual 4 3 Installation Execute the following steps for installation CPC XT may be installed in an empty ex e Disconnect your computer from the po pan sion slot on the motherboard of your wer line IBM XT or IBM AT compatible computer To Open the case of your computer and re re please pay attention to the follo move the cover of the expansion slot Wingen rear panel Insert CPC XT carefully into the ISA or EISA s
5. idual controllers is generated by the logic on CPC XT 2 Unmap CAN controller from memory address range 3 Map CAN controller into memory address range Initialization of the CAN controller and CAN communication are done by accesses to the CAN controller registers The register descrip tion may be taken from the data sheet of the individual controller User Manual 3 Electrical Characteristics 3 1 Absolute Limiting Values Any also temporary stress in excess of the li miting values may cause permanent damage on CPC XT and connected devices Parameter Min Max Unit Storage temperature 20 80 C Operating temperature 0 60 C Voltage on the bus 30 30 V connections Current across ground 1 A connection Extended temperature range on demand 3 2 Nominal values Parameter Min Typ Max Unit Power supplyon 4 75 5 5 25 V Pin B3 of the PC expansion slot Power supply on 10 8 12 13 2 V Pin B9 of the PC expansion slot Voltage on bus 30 30 V pins Clock frequency 16 MHz This voltage is measured against the ground potential of the CAN transceiver Older board versions are equipped with PCA82C250 CAN transceivers In this case lower limits apply EMS Dr Thomas W nsche EMS Dr Thomas W nsche User Manual CPC XT 4 Operating Instructions 4 1 Pin configuration of CAN connector
6. lot therefore take the card at its WARNING Computer devices and components are top corners and shift it down into the sensitive against static discharge For this rea slot equally Push onto the upper side son keep CPC XT in the antistatic cover until of CPC XT to achieve correct seat in installing Just before removing CPC XT from the slot Ba touch the metal case of If the card can not be inserted wit yO uP i hout problems please dont t use ex Avoid damage by achieving equal potential tensive force Remove the card and between all devices on the CAN before plug retry ging the connection Fix the mounting screw and close the To the rear side connector of CPC XT only PC case Connect the required cables CAN networks with a connector and electrical character complying with CiA DS 102 may be attached PC interface and CAN bus are not galvanic decoupled in the standard version of CPC XT Use in systems with diverging ground potential of PC and CAN bus is not permitted in this case Besides the instructions mentioned in this ma nual carefully observe the instructions in your computers users manual If you are not sure about the installation please contact EMS Dr Thomas W nsche EMS Dr Thomas W nsche 11 12 EMS Dr Thomas W nsche User Manual CPC XT EMS Dr Thomas W nsche 13
7. to DEOOOh and occupies 512 Bytes The avai lability of the CAN controller in the memory area makes the CAN communication direct and provides a low latency time The memory occupied by CPC XT is divided in two subran ges The first subrange contains the configura tion registers of the card and starts at the base address The second subrange allows access to the CAN controller and has 100h Bytes off set to the base address The configuration re gisters are described in the following table Address Access Description offset 0 Read Constant 55h for card detection 1 Read Constant AAh for card detection 2 Read Encoding of occupied memory range in units of 512 Byte 3 Read Constant CBh for card detection 4 Read Identification of CAN controller 1 82527 2 82C200 older boards 8 SJA1000 6 Read Status register 0 Write Control register EMS Dr Thomas W nsche 3 EMS Dr Thomas W nsche User Manual CPC XT The status register contains the actual state of CPC XT The bits have the following meaning Bit Indication 0 Hardware reset active at CAN controller 1 CAN controller mapped into memory address range Write accesses to the control register initiate actions within CPC XT The following table shows the transmitted data and the resulting action Value Function 0 Hardware reset of CAN controller The minimum reset time for the indiv
8. uration 0 8 4 3 Installation 11 EMS Dr Thomas W nsche iii iv EMS Dr Thomas W nsche User Manual 1 Overview 1 1 Attributes CPC XT CAN interface for industrial applications Compact size for 8 bit slots CiA DS 102 and ISO 11898 compatible physical layer Equipped with Intel AN 82527or Philips SJA1000 CAN controller Extended ESD protection of the CAN transceiver Galvanic decoupling between PC and CAN bus optional Alternative power supply of the CAN transceiver by PC or CAN bus Easy programming based on direct mapping of CAN controller registers into PC memory area Automatic address range detection by memory managers User Manual 1 2 General Description CPC XT is a short PC plug in card for the CAN bus With its small size and the possible appli cation in 8 bit slots CPC XT can be used in space restricted conditions as well Designed for industrial series applications CPC XT has a robust and cost efficient layout CPC XT supp orts different types of CAN controllers the Full CAN device INTEL AN 82527 as well as the Basic CAN device PHILIPS SJA1000 CPC XT maps the CAN controller into the PC address space and thus allows access to CAN messages with low latency Existing software for the supported CAN controllers can easily be adapted With CPC XT the CAN communi cation may be handled either in interrupt con trolled or in polled mode the interrupt chan nels 3
Download Pdf Manuals
Related Search