Connect Tech Computer Accessories CTIM 00043 User Manual

USER MANUAL  
CANpro/104  
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CANpro/104 User Manual  
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CANpro/104 User Manual  
Copyright Notice  
The information contained in this document is subject to change without notice. Connect Tech Inc. shall not  
be liable for errors contained herein or for incidental consequential damages in connection with the furnishing,  
performance, or use of this material. This document contains proprietary information that is protected by  
copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated  
to another language without the prior written consent of Connect Tech, Inc.  
Copyright © 2009 by Connect Tech Inc.  
Trademark Acknowledgement  
Connect Tech Inc. acknowledges all trademarks, registered trademarks and/or copyrights referred to in this  
document as the property of their respective owners.  
Not listing all possible trademarks or copyright acknowledgments does not constitute a lack of  
acknowledgment to the rightful owners of the trademarks and copyrights mentioned in this document.  
Revision History  
Revision 0.02  
January 15, 2010  
Updated manual with Rev.C (or later) Boards  
Revision 0.01  
December 22, 2008  
Updated manual to new format  
Updated Table 3  
Revision 0.00  
Original Document  
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CANpro/104 User Manual  
Introduction  
CANpro/104 combines the power of two independent NXP SJA1000 CAN controllers with the compact size  
and rugged stability of PC/104. CANpro/104 is ideal for industrial control applications exposed to harsh  
conditions or environments. CANpro/104 Opto models feature 2.5 kV of data and power isolation.  
Features  
Two independent, industry standard NXP SJA1000 CAN controllers  
PC/104 compliant  
16MHz input clock (24MHz build option available)  
Fail-safe power-up/power-down using on-board impendence transceivers to maximize nodes on the bus  
and ensure glitch-free operation.  
Supports up to 1.0 Mbps operation and over 120 nodes on the bus  
2000 V(AC) 50/60 Hz sine wave, 2500 V (peak) signal and power isolation for each port from the host  
system (on CANpro/104 Opto models only)  
Jumper configurable:  
address range and interrupt sharing  
output slew rate limiting for lower radiated emissions  
-120 Ohm CAN bus termination  
Decoded address range is configurable for BasicCAN and PeliCAN modes  
Ten pin right angled header standard as an I/O connector (DB-9 option available)  
Operating temperature range of -40°C to +85°C  
+5V power output on some models  
RoHS compliant  
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CANpro/104 User Manual  
Hardware Installation Rev C & Later  
The Connect Tech CANpro/104 board provides two (2) industry standard SJA1000 CAN Bus controllers in  
a PC/104 board format which supports both I/O and Memory mapping configurability.  
All the configuration options are setup with jumpers, identified as J1, J2, J3A, J3B, J3C, J4 and J5.  
Jumpers are always oriented as indicated in the drawing below.  
The jumper positions are numbered on the PCB (and are shown in the above drawing). J1 and J2 are  
Interrupt Selection jumpers, and the numbers (3, 4, 5, 6, 7, 9, 10, 11, 12, 14 and 15) refer to the actual  
interrupt number being selected. J3A, J3B and J3C positions are numbered sequentially from left to right.  
J3A and J3C have 6 positions, J3B has 7 positions. J4 and J5 positions are labeled “T” and “G”.  
Memory vs I/O Spaces  
The first decision to make when configuring this board, it to select whether the board will operate within the  
Memory or I/O address Space of the computer system in which the board is installed. First a quick  
description of the two different Spaces.  
Memory Space  
Most (but not all) PC/104 CPU System board vendors provide one or more regions of Memory  
Addresses that can be configured (or allocated) to the PC/104 Expansion bus connector(s) on CPU  
System board. This setup may be performed via the BIOS setup or via jumpers or switches on the  
System board. This memory region is usually located at addresses below the 1-Meg CPU memory  
address (commonly referred to as the Upper Memory addresses), although some System boards  
allow the PC/104 Expansion Bus to be allocated to blocks of addresses within the first 16-Meg of  
memory.  
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I/O Space  
This region is supported by all PC/104 CPU System board vendors, and commonly consists of I/O  
Addresses from 0x000 to 0x3FF, although some System boards support I/O addresses beyond 0x3FF.  
(Note: Some I/O mapped PC/104 expansion boards only decode the lowest 10 bits of the I/O address,  
therefore these boards restrict the usable I/O space to 0x3FF).  
CTI CANpro/104 Spaces  
Memory Space  
The CTI CANpro/104 board can be configured to operate in the CPU Memory Address Space  
between addresses 0x000000 and 0xCFE000. The board decodes an 8192/0x2000 byte block of  
memory selectable at numerous address locations throughout the first 16-Meg of CPU address range.  
The selection is always on an 8192/0x2000 byte address boundary.  
I/O Space  
The CTI CANpro/104 board can be configured to operate in the CPU I/O Address Space between  
addresses 0x000 and 0x7C0. The board decodes either a 256/0x100 byte block or a 64/x40 byte  
sized block depending on the selection of either the PeliCAN or BasicCAN mode (more on this  
selection later).  
When the PeliCAN mode is selected, the board decodes a 256/0x100 byte block (on a  
256/0x100 byte address boundary) at I/O addresses from 0x000 to 0x700.  
When the BasicCAN mode is selected, the board decodes a 64/0x40 byte block (on a 64/0x40  
byte address boundary) at I/O addresses from 0x000 to 0x7C0.  
The selection of either Memory or I/O space is made with Jumper J3A Position #1.  
J3A Position #1  
Removed  
Installed  
Function  
Memory Space operation enabled  
I/O Space operation enabled  
Table 1  
Memory Space Enabling  
Some CPU System board BIOS’s will scan certain regions of the CPU memory below the 1-Meg  
boundary looking for ROM’s to boot from, and if the CTI CANpro/104 board is setup to operate  
within these memory regions, the BIOS might accidently confuse this board as being a ROM. To  
prevent this, this board has the ability to power-up (or after a system reset) with the Memory Space  
disabled.  
There are 2 ways to enable the Memory Space. First, it can be enabled permanently by using  
Jumper J3C Position #1.  
J3C Position #1  
Removed  
Installed  
Function  
Memory Space is always enabled  
Memory Space powers-up (or resets) as disabled  
Table 2  
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Secondly, the Memory Space can be enabled by Application or Driver software, after the Operating  
system has started. This can be accomplished by writing a data value to an I/O Space Address which  
is decoded by the following J3B Jumper settings. Only one byte of the I/O Space is decoded at this  
I/O Address, and the location is Write Only.  
J3B  
I/O Address  
Position #5  
Removed  
Removed  
Removed  
Removed  
Installed  
Installed  
Installed  
Installed  
Position #6  
Removed  
Removed  
Installed  
Installed  
Removed  
Removed  
Installed  
Installed  
Position #7  
Removed  
Installed  
Removed  
Installed  
Removed  
Installed  
Removed  
Installed  
0x200  
0x240  
0x280  
0x2C0  
0x300  
0x340  
0x380  
0x3C0  
Table 3  
Notes:  
1. These I/O address choices do NOT access the CAN Controllers, they are used in  
Memory Mode to enable the Memory Space address decoding.  
2. Writing a data value of 0xA5 will enable the Memory Space, and a data value of 0x5A  
will disable the Memory Space. All other data values written will be ignored.  
3. When the Memory Space is permanently enabled (when J3C-1 is removed), any data  
value written to the “Memory EnableI/O address will be ignored.  
Base Address Decoding  
The CTI CANpro/104 board decodes its Base Address setting (in either Memory or I/O Spaces) by  
comparing (matching) various Jumper settings with PC/104 Bus Address bits.  
If a Jumper is installed, then the corresponding Address Bit will be matched as a logical “1”.  
If a Jumper is removed, then the corresponding Address Bit will be matched as a logical “0”.  
The matching of Jumper settings to Address bits depends on whether the board is operated in Memory or I/O  
Spaces, and whether PeliCAN or BasicCAN mode is selected.  
I/O Space  
Address Bit  
PeliCAN BasicCAN  
Jumper  
Group  
Memory Space  
Address Bit  
Position  
J3A  
2
3
4
5
6
1
2
3
4
23  
22  
19  
18  
17  
16  
15  
14  
13  
X
X
X
X
10  
9
8
X
X
X
X
X
X
10  
9
8
7
6
J3B  
Table 4  
Notes:  
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1. X = Address bit is ignored (and the corresponding Jumper is Not Used).  
2. When Memory Space is selected, PC/104 Address bits 20 and 21 are always decoded as logical  
“0”.  
To determine which Jumpers to install and which to remove, the desired Address needs to be broken down  
into a binary number, all the Jumpers that correspond to “1-bits” must be installed, and all Jumpers  
corresponding to “0-bits” must be removed.  
The remaining lower bits of the PC/104 Bus Address are either, ignored, or are used to select and address the  
Registers of the SJA1000 CAN controllers, in the following manner.  
When Memory Space is selected  
PC/104 Bus  
Address Bit  
SJA1000 Selection  
or Register Address Bit  
12  
11  
10  
9
Address bit is ignored  
Address bit is ignored  
Address bit is ignored  
Address bit is ignored  
8
Address bit is ignored  
7
Select SJA1000 device  
=0, selects the CAN-0 Port  
=1, selects the CAN-1 Port  
6
5
4
3
2
1
0
6
5
4
3
2
1
0
Table 5  
When I/O Space is selected  
SJA1000 Selection  
or Register Address Bit  
PC/104 Bus  
Address Bit  
PeliCAN Addressing Mode  
BasicCAN Addressing Mode  
10  
9
8
Decoded (see Table 4)  
Decoded (see Table 4)  
Decoded (see Table 4)  
Select SJA1000 device  
=0, selects the CAN-0 Port  
=1, selects the CAN-1 Port  
6
Decoded (see Table 4)  
Decoded (see Table 4)  
Decoded (see Table 4)  
Decoded (see Table 4)  
7
6
5
Decoded (see Table 4)  
Select SJA1000 device  
5
=0, selects the CAN-0 Port  
=1, selects the CAN-1 Port  
4
3
2
1
0
4
3
2
1
0
4
3
2
1
0
Table 6  
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PeliCAN vs BasicCAN Addressing Modes  
The SJA1000 can operate in 2 different modes, the PeliCAN mode which has extended features and  
additional registers and which consume 128 bytes of address space per device (there are 2 devices on  
this board). And, the BasicCAN mode which has reduced functionality but only consumes 32 bytes  
of register space per device.  
Note: The mode of operation of the SJA1000 is performed by changing Bit-7 of the Clock  
Divider Register (which defaults to BasicCAN mode whenever a PC/104 Bus Reset occurs).  
When the SJA1000’s are operated in BasicCAN mode, it is desirable to accommodate the smaller  
number of registers by decoding a smaller amount of I/O Space (because the I/O Space region is  
limited in total size).  
The selection of Addressing Mode is done with Jumper J3C Position #2. This selection has no  
meaning when Memory Space operation is enabled (see Jumper J3A above).  
J3C Position #2  
Removed  
Installed  
Function  
PeliCAN Addressing mode enabled  
BasicCAN Addressing mode enabled  
Table 7  
Addressing Examples  
Example #1:  
Memory Address 0x4A6000 (this address is above the 1-Meg boundary)  
0x4A6000 = 0100.1010.011X.XXXX.CJJJ.JJJJ (binary)  
Address bits in red are matched against their respective Jumper settings.  
X = Address bits that are ignored by the board.  
C = Address bit that is used to select the SJA1000 controller.  
J = Address bits that are used to select the SJA1000 registers.  
Address  
Bit  
Bit  
Value  
J3A or J3B  
Position  
Installed  
or Removed  
23  
22  
21  
20  
0
1
0
0
J3A-2  
J3A-3  
Removed  
Installed  
Address Bit always decoded as “0”  
Address Bit always decoded as “0”  
19  
18  
17  
16  
1
0
1
0
J3A-4  
J3A-5  
J3A-6  
J3B-1  
Installed  
Removed  
Installed  
Removed  
15  
14  
13  
0
1
1
J3B-2  
J3B-3  
J3B-4  
Removed  
Installed  
Installed  
Table 8  
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Example #2:  
Memory Address 0x0C8000 (this address is below the 1-Meg boundary)  
0x0C8000 = 0000.1100.100X.XXXX.CJJJ.JJJJ (binary)  
Address  
Bit  
Bit  
Value  
J3A or J3B  
Position  
Installed  
or Removed  
23  
22  
21  
20  
0
0
0
0
J3A-2  
J3A-3  
Removed  
Removed  
Address Bit always decoded as “0”  
Address Bit always decoded as “0”  
19  
18  
17  
16  
15  
14  
13  
1
1
0
0
1
0
0
J3A-4  
J3A-5  
J3A-6  
J3B-1  
J3B-2  
J3B-3  
J3B-4  
Installed  
Installed  
Removed  
Removed  
Installed  
Removed  
Removed  
Table 9  
Example #3:  
I/O Address 0x340 (BasicCAN mode)  
0x340 = XXXX.XXXX.XXXX.X011.01CJ.JJJJ (binary)  
Address  
Bit  
Bit  
Value  
J3A or J3B  
Position  
Installed  
or Removed  
23 -> 11  
X
---  
---  
10  
9
8
7
6
0
1
1
0
1
J3A-6  
J3B-1  
J3B-2  
J3B-3  
J3B-4  
Removed  
Installed  
Installed  
Removed  
Installed  
Table 10  
Example #4:  
I/O Address 0x600 (PeliCAN mode)  
0x600 = XXXX.XXXX.XXXX.X110.CJJJ.JJJJ (binary)  
Address  
Bit  
Bit  
Value  
J3A or J3B  
Position  
Installed  
or Removed  
23 -> 11  
X
---  
---  
10  
9
8
1
1
0
J3A-6  
J3B-1  
J3B-2  
Installed  
Installed  
Removed  
Table 11  
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CAN Controller Addressing Table  
Once the Base Memory or I/O Address is setup, the 2 SJA1000 CAN controllers are accessed at the  
following address offsets.  
Offset from Base Address  
I/O Space  
Accessed Resource  
Memory Space  
BasicCAN mode  
PeliCAN mode  
CAN-0 Port (SJA1000)  
CAN-1 Port (SJA1000)  
Memory Enable Bit  
0x000 0x07F  
0x080 0x0FF  
At the I/O Address setup  
with JB3 Positions 5,6,7  
0x000 0x01F  
0x020 0x03F  
N/A  
0x000 0x07F  
0x080 0x0FF  
N/A  
Table 12  
The SJA1000 Register offsets can be found in the documentation from NXP Semiconductor  
(formerly Philips). www.nxp.com (enter SJA1000 into their search tool).  
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Common Memory Space Address Selections  
Most System boards allow the PC/104 Bus stack to be allocated a portion of the memory address  
located in the 256K region of memory just below the 1-Meg address boundary (Addresses  
0x0C0000 to 0x0FFFFF). Different BIOS’s allow different sized regions to the allocated. The  
CANpro/104 board requires 8K (8192 bytes) of memory space.  
The following table shows the Jumpers required to set up the Base Memory Address within this  
256K region.  
In =  
Jumper installed (Corresponding Memory Address bit is = “1”)  
Out = Jumper removed (Corresponding Memory Address bit is = “0”)  
[xx] = Corresponding Memory Address bit number  
J3A  
4
J3B  
Base  
Memory  
Address  
2
3
5
6
1
2
3
4
[23] [22] [19] [18] [17] [16] [15] [14] [13]  
0x0C0000 Out Out  
0x0C2000 Out Out  
0x0C4000 Out Out  
0x0C6000 Out Out  
0x0C8000 Out Out  
0x0CA000 Out Out  
0x0CC000 Out Out  
0x0CE000 Out Out  
0x0D0000 Out Out  
0x0D2000 Out Out  
0x0D4000 Out Out  
0x0D6000 Out Out  
0x0D8000 Out Out  
0x0DA000 Out Out  
0x0DC000 Out Out  
0x0DE000 Out Out  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
In  
Out Out Out Out Out  
Out Out Out Out  
In  
Out  
In  
Out Out Out  
Out Out Out  
In  
In  
Out Out  
Out Out  
Out Out  
Out Out  
In  
In  
In  
In  
Out Out  
Out  
In  
In  
Out  
In  
In  
Out  
Out  
Out  
Out  
Out  
Out  
Out  
Out  
In  
In  
In  
In  
In  
In  
In  
In  
In  
Out Out Out  
Out Out  
In  
Out  
In  
Out  
Out  
In  
In  
In  
Out Out  
In  
In  
In  
Out  
In  
In  
In  
Out  
In  
0x0E0000  
0x0E2000  
0x0E4000  
0x0E6000  
0x0E8000  
Out Out  
Out Out  
Out Out  
Out Out  
Out Out  
Out Out Out Out  
In  
In  
In  
Out Out Out  
In  
Out  
In  
Out Out  
Out Out  
In  
In  
In  
In  
In  
In  
Out  
Out  
Out  
Out  
In  
In  
In  
In  
In  
Out Out  
0x0EA000 Out Out  
0x0EC000 Out Out  
0x0EE000 Out Out  
Out  
In  
In  
Out  
In  
In  
0x0F0000  
0x0F2000  
0x0F4000  
0x0F6000  
0x0F8000  
Out Out  
Out Out  
Out Out  
Out Out  
Out Out  
In  
Out Out Out  
In  
In  
In  
In  
In  
In  
In  
In  
Out Out  
In  
Out  
In  
Out  
Out  
In  
In  
In  
Out Out  
0x0FA000 Out Out  
0x0FC000 Out Out  
0x0FE000 Out Out  
In  
In  
In  
In  
In  
In  
In  
In  
In  
Out  
In  
In  
In  
Out  
In  
Table 13  
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Performance Enhancement  
PC/104 Memory and I/O Bus cycles are typically about 700 nS long in total, but the access speed of the  
SJA1000 is considerably faster. The PC/104 Bus allows Memory and I/O Bus cycles to be shortened by the  
assertion of the SRDY* signal at the appropriate time in the Bus Cycle. This shortening of the PC/104 Bus  
Cycle can yield some significant performance improvements is some applications.  
The CTI CANpro/104 board allows the PC/104 Bus cycle to be shortened by about 30% with Jumper J3C  
Position #6.  
J3C Position #6  
Removed  
Installed  
Function  
Normal PC/104 Bus Cycle length  
Shortened PC/104 Bus Cycle length  
Table 14  
Note: Not all System boards will support Bus Cycle shortening via the PC/104 SRDY* signal.  
Consult with the manufacturer of your System board to determine if this feature is supported.  
CAN Bus Options  
The board supports 2 CAN Bus Options with Jumper J4 and J5.  
J4 is associated with CAN Port-0, and J5 is for CAN Port-1.  
CAN Bus Termination  
Ground the Shell of the 9D Connector  
Termination  
A 120 ohm termination resistor is placed across the CAN Bus signals (CANH and CANL), by  
placing a jumper on Position “T” of either J4 or J5. It is desirable to place a termination resistor at  
each physical end on a CAN Bus segment.  
9D Connector Shell Ground  
On CANpro/104 boards equipped with a 9D CAN Bus connector, the Metal Shell of that connector  
can be connected to the Isolated Ground of the board (each CAN Port has a separate Ground), by  
placing a jumper on Position “G” of either J4 or J5. This might be useful in some installations to  
reduce noise.  
Interrupt Mode and Selections  
The board can be operated with either one or two interrupts, the interrupt(s) can be shared with another  
PC/104 board (which supports shared interrupts), and the Pull-down resistor, which is required for shared  
interrupts, can be enabled on this board.  
The Jumper Blocks consist of 2 groups of Interrupt Selections, one group for the CAN-0 controller (red box)  
and the other for the CAN-1 controller (blue box).  
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Single Interrupt Mode  
This mode routes the interrupt signal from both SJA1000 CAN controllers to one PC/104 Bus  
Interrupt signal. This mode is set up by installing Jumper J1/J2 Position “S” (either the CAN-0 or  
the CAN-1 “S” position can be used). When this jumper is installed, the Interrupt signal occurs on  
the “CAN-0 rowof J1 and J2 (red box).  
Dual Interrupt Mode  
This mode routes the interrupt signal from the CAN-0 SJA1000 CAN controller to the CAN-0  
PC/104 Bus Interrupt signal and the CAN-1 SJA1000 CAN controller to the CAN-1 PC/104 Bus  
Interrupt signal. This mode is set up by removing Jumper J1/J2 Position “S”.  
J1/J2 Position “S” Function  
Removed  
Installed  
Dual Interrupt Mode  
Single Interrupt Mode  
Table 15  
Shared Interrupt Mode  
In either the Single or Dual interrupt modes, the PC/104 Bus Interrupt Signal can be shared with a  
similarly selected interrupt on another PC/104 board (which supports shared interrupts). There are 2  
jumpers which control this sharing on J3C Positions #3 and #4.  
Function  
J3C Position  
Jumper Installed  
Jumper Removed  
3
4
CAN-1 Interrupt Shared  
CAN-0 Interrupt Shared  
CAN-1 Interrupt Not Shared  
CAN-0 Interrupt Not Shared  
Table 16  
Shared Interrupt Pull-Down  
When shared interrupts are employed, there MUST be one board (among the boards that share the  
same interrupt) that MUST be setup to activate a Pull-Down resistor on the Interrupt signal. This is  
accomplished by Jumper J3C Position #5.  
J3C Position #5  
Removed  
Installed  
Function  
Shared Interrupt(s) Pull-Down disabled  
Shared Interrupt(s) Pull-Down enabled  
Table 17  
Interrupt Selection  
In either of the CAN-0 or CAN-1 groups there is 11 possible interrupts that can be selected. The  
jumpers are numbered by the PC/104 Bus Interrupt number (3, 4, 5, 6, 7, 9, 10, 11, 12, 14 or 15).  
Only one jumper should be installed in the appropriate group.  
CAN Bus Dominant Timeout and Minimum Speed  
The CANpro/104 board implements a CAN Bus transceiver which has a “Dominant State timeout  
feature”. This feature prevents the board from permanently holding the CAN bus in the “Dominant  
state”. Due to this feature, the minimum CAN Bus data rate supported is 20K bps.  
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Security ID Feature  
Some users may wish to associate the operation of their software with a particular hardware  
installation. To support this ability, an ID mechanism is available which uses a simple, somewhat  
unusual (but predictable) Write/Read mechanism by which software can determine that the CTI  
CANpro/104 board is installed. This feature is only available when the CANpro/104 board is  
operated in “Memory Mode”. Contact CTI Technical Support for information about the method and  
algorithm required to use this feature.  
Jumper Summaries  
The following tables of Jumper settings are useful once the user is familiar with the operations performed by  
those jumpers.  
J1  
Function (for either CAN-0 or CAN-1)  
Position  
Jumper Installed  
Jumper Removed  
3
4
5
6
7
9
PC/104 Interrupt #3 Selected  
PC/104 Interrupt #4 Selected  
PC/104 Interrupt #5 Selected  
PC/104 Interrupt #6 Selected  
PC/104 Interrupt #7 Selected  
PC/104 Interrupt #9 Selected  
PC/104 Interrupt #3 Not Selected  
PC/104 Interrupt #4 Not Selected  
PC/104 Interrupt #5 Not Selected  
PC/104 Interrupt #6 Not Selected  
PC/104 Interrupt #7 Not Selected  
PC/104 Interrupt #9 Not Selected  
Table 18  
Only one position can be jumpered.  
J2  
Function (for either CAN-0 or CAN-1)  
Position  
Jumper Installed  
Jumper Removed  
10  
11  
12  
14  
15  
S
PC/104 Interrupt #10 Selected  
PC/104 Interrupt #11 Selected  
PC/104 Interrupt #12 Selected  
PC/104 Interrupt #14 Selected  
PC/104 Interrupt #15 Selected  
Single Interrupt Mode  
PC/104 Interrupt #10 Not Selected  
PC/104 Interrupt #11 Not Selected  
PC/104 Interrupt #12 Not Selected  
PC/104 Interrupt #14 Not Selected  
PC/104 Interrupt #15 Not Selected  
Dual Interrupt Mode  
Table 19  
Only one interrupt numbered position can be jumpered.  
J3A  
Function  
Position  
Jumper Installed  
“I/O” Space operation enabled  
Mem Addr[23] = 1  
Jumper Removed  
“Memory” Space operation enabled  
Mem Addr[23] = 0  
1
2
3
4
5
6
Mem Addr[22] = 1  
Mem Addr[19] = 1  
Mem Addr[18] = 1  
Mem Addr[22] = 0  
Mem Addr[19] = 0  
Mem Addr[18] = 0  
Mem Addr[17] or I/O Addr[10] = 1  
Mem Addr[17] or I/O Addr[10] = 0  
Table 20  
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J3B  
Function  
Position  
Jumper Installed  
Jumper Removed  
1
2
3
Mem Addr[16] or I/O Addr[9] = 1  
Mem Addr[15] or I/O Addr[8] = 1  
Mem Addr[14] = 1  
Mem Addr[16] or I/O Addr[9] = 0  
Mem Addr[15] or I/O Addr[8] = 0  
Mem Addr[14] = 0  
or  
or  
I/O Addr[7] = 1 (BasicCAN mode only)  
I/O Addr[7] = 0 (BasicCAN mode only)  
4
Mem Addr[13] = 1  
Mem Addr[13] = 0  
or  
or  
I/O Addr[6] = 1 (BasicCAN mode only)  
I/O Addr[6] = 0 (BasicCAN mode only)  
5
6
7
Memory Space Enable Bit-2 [Note 1]  
Memory Space Enable Bit-1 [Note 1]  
Memory Space Enable Bit-0 [Note 1]  
Table 21  
The 3 Memory Space Enable bits select 8 choices of I/O Addresses for the Memory Enable feature.  
J3C  
Function  
Position  
Jumper Installed  
Jumper Removed  
1
Memory Space powers-up (or resets)  
disabled  
Memory Space is always enabled  
2
3
4
5
6
BasicCAN mode enabled  
CAN-1 Interrupt Shared  
CAN-0 Interrupt Shared  
Shared Interrupt(s) Pull-Down enabled  
Shorten Memory and I/O Bus Cycles  
PeliCAN mode enabled  
CAN-1 Interrupt Not Shared  
CAN-0 Interrupt Not Shared  
Shared Interrupt(s) Pull-Down disabled  
Normal Memory and I/O Bus Cycles  
Table 22  
J4 and J5  
Function  
Position  
Jumper Installed  
Jumper Removed  
T
G
CAN Bus Termination Resistor enabled  
9D Connector Shell Grounded [Note 1]  
CAN Bus Termination Resistor disabled  
9D Connector Shell NOT Grounded  
Table 23  
The 9D Shell is Grounded to the Isolated Ground for the respective CAN Port.  
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CANpro/104 User Manual  
Hardware Installation Rev A & B  
Before you begin, take a minute to ensure that your package includes the required components that should  
have shipped with your CANpro/104.  
One CANpro/104 CAN controller board  
One CD containing documentation  
If any of these components is missing, contact Connect Tech (See Contact Details) or your reseller. Also,  
visit the Download Zone of the Support Center on the Connect Tech website for the latest product manuals,  
installation guides, diagnostic utilities and device driver software.  
CANpro/104 Opto Diagrams  
Figure 1 shows the locations of various hardware components found on the CANpro/104.  
Figure 1: CANpro/104 Board Diagram  
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Interrupts and Memory I/O Range Selection  
CANpro/104’s interrupt lines and I/O ranges are jumper assignable.  
Interrupt Selection  
J1 and J2 are used for interrupt selection. Interrupt selection for the first CAN controller is achieved  
via the upper and centre rows of pins on the connector. The lower and center rows of pins allow  
selection of interrupts for the second CAN controller. Please refer to Figure 1 to locate jumper  
blocks J1 and J2.  
CANpro/104 offers flexible interrupt configuration. Each CANpro/104 card can use one PC/104  
interrupt per controller, share one interrupt across both controllers or use no interrupts at all.  
Unique Interrupt Lines  
The example below illustrates CANpro/104 configured for two unique interrupts with controller 0  
interrupting on IRQ 4 and controller interrupting on IRQ 5.  
Sharing a Single Interrupt Line  
CANpro/104’s CAN controllers can also interrupt on the same interrupt line. The diagram below  
demonstrates both controllers interrupting on line IRQ 11. Please note that the interrupt selection for  
the interrupt that both controllers share must be made on the CAN 0 rows.  
No Interrupts  
To force operation without interrupts, simply leave the interrupt jumper blocks J1 and J2  
unpopulated. This requires software polling to determine an interrupt condition.  
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Address Mode and Range Selection  
The first five jumper locations of jumper block J3 are used for board address selection. The first  
jumper location (Addr Mode) selects the number of address bits to use for the decoding of the board  
address. The next four jumpers configure the actual board address.  
If you intend to configure both of the board’s controllers in BasicCAN mode, install a jumper in the  
Addr Mode location. This configures the board to respond to a 64 byte address range (32 bytes per  
controller).  
Alternatively, if you intend to operate one or both of the CAN controllers in PeliCAN mode, leave  
the Addr Mode location unpopulated. This configures the board to respond to a 256 byte address  
range (128 bytes per controller).  
The address range for the board itself is directly selected by the Addr3, Addr2, Addr1 and Addr0  
jumper locations. The following table describes the base addresses of the controllers 0 and 1 (CAN  
0 and CAN 1) for every possible combination of Addr Mode and AddrX jumper locations.  
Table 24: CAN 0 and CAN 1 Base Addresses  
Board Mode Selection  
Jumper Location  
ON (BasicCAN)  
OFF (PeliCAN)  
Addr3  
ON  
ON  
ON  
ON  
ON  
ON  
ON  
ON  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
OFF  
Addr2  
ON  
ON  
ON  
ON  
OFF  
OFF  
OFF  
OFF  
ON  
ON  
ON  
ON  
OFF  
OFF  
OFF  
OFF  
Addr1  
ON  
ON  
OFF  
OFF  
ON  
Addr0  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
OFF  
ON  
CAN 0  
0x000  
0x040  
0x080  
0x0C0  
0x100  
0x140  
0x180  
0x1C0  
0x200  
0x240  
0x280  
0x2C0  
0x300  
0x340  
0x380  
0x3C0  
CAN 1  
0x020  
0x060  
0x0A0  
0x0E0  
0x120  
0x160  
0x1A0  
0x1E0  
0x220  
0x260  
0x2A0  
0x2E0  
0x320  
0x360  
0x3A0  
0x3E0  
CAN 0  
0x000  
0x000  
0x000  
0x000  
0x100  
0x100  
0x100  
0x100  
0x200  
0x200  
0x200  
0x200  
0x300  
0x300  
0x300  
0x300  
CAN 1  
0x080  
0x080  
0x080  
0x080  
0x180  
0x180  
0x180  
0x180  
0x280  
0x280  
0x280  
0x280  
0x380  
0x380  
0x380  
0x380  
ON  
OFF  
OFF  
ON  
ON  
OFF  
OFF  
ON  
ON  
OFF  
OFF  
OFF  
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Interrupt Sharing  
Jumper block J3 also plays a part in the interrupt sharing. PC/104 supports the sharing of an  
interrupt between multiple cards. For example, two separate CANpro/104 cards are able to share the  
same interrupt across all four controllers. To accomplish interrupt sharing, the following steps must  
be taken:  
All cards that share the same interrupt, but are not actively asserting an interrupt, must tri-state their  
outputs. On CANpro/104 cards, this is accomplished by installing a jumper on the INTshrX jumper  
location of each CAN controller(s) you wish to share interrupts.  
One 1K Ohm resistor must also be attached to each shared interrupt. With the example of two  
CANpro/104 cards, the INTres jumper would be installed on only one of the cards.  
NOTE:  
CANpro/104 has the capability to tri-state its interrupt outputs and the 1K Ohm resistor is jumper  
configurable. Other cards may not be able to share interrupts. Please check the manual for each  
card.  
The example below has configured both cards to interrupt on IRQ 11. Both controllers will tri-state  
their outputs when not driving the interrupt line active. This example assumes that another card in  
the stack has enabled the 1K Ohm pull-down resistor. Only one card in the group of cards sharing  
the same interrupt should enable a pull-down resistor.  
To enable the resistor, simply install a jumper on the INTres jumper location, as shown below.  
Please note that the Interrupt Resistor Enable controls the Interrupt Resistor for all shared CAN  
controller interrupts on the card. You cannot enable the Interrupt Termination Resistor for one  
controller only if both are configured for interrupt sharing.  
If a card has interrupt sharing enabled for only one of its controllers, the resistor will only be enabled  
on the interrupt of the controller that is sharing interrupts.  
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Other On-board Jumper Selection  
Near each I/O connector a 2x2 jumper block (either J4 or J5) will allow the configuration of both bus  
termination and slew rate limiting for the transceiver. J4 configures options for CAN controller 0, while J5  
configures options for CAN controller 1.  
Installing a jumper on the first location of J4 or J5 (the gray area above) will enable a 120 Ohm termination  
resistor across the CAN-H and CAN-L lines. Termination is recommended for improved signal integrity in  
longer transmission lines. Termination requirements should be evaluated on a case by case basis. Typically  
both ends of a CAN bus are terminated, but no termination is enabled on cards that sit in the middle of the  
bus.  
Installing a jumper on the second location of J4 or J5 (the gray area above) will disable slew rate limiting for  
the associated CAN port. Slew rate limiting will reduce the emitted switching noise that is sent out onto the  
CAN bus lines and radiated from those lines. Switching noise may cause EMI / EMC incompatibilities  
depending on the cabling used to support the system. The use of slew rate limiting may aid in a system that is  
close to the limit of emissions already. Properly shielded cabling will dramatically reduce emissions.  
Slew rate limiting may only be used on busses operating at slower baud rates. With the jumper installed, full  
1Mbps operation is possible.  
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Connector Pinouts  
Table 25: DB-9 Cable Connector Pinouts  
Pin No.  
Signal  
1
2
3
4
5
6
7
8
9
+5V  
CAN-L  
CAN GND (isolated or non)  
N/C  
N/C  
CAN GND (isolated or non)  
CAN-H  
N/C  
+5V  
Male DB-9 Connector  
1
5
9
6
For boards populated with right angled 2x5 0.100” headers, cable CAG104 will break out from the  
onboard 2x5 header to a DB-9 connector.  
Table 26: 10-pin Header Pinouts  
Pin No.  
Signal  
1
2
+5V  
CAN-GND (isolated or non)  
3
CAN-L  
4
CANH  
5
CAN-GND (isolated or non)  
6
7
8
9
NC  
NC  
+5V  
NC  
NC  
10  
2
1
4
8
7
10  
6
10-pin header  
5
3
9
Printed circuit board  
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Specifications  
Operating Environment  
Storage temperature:  
Operating temperature:  
Humidity:  
-40 C to 125 C  
-40 C to 85 C  
95%, non-condensing  
Power Requirements  
+5 VDC @ 500mA (maximum)  
380 mA (minimum)  
NOTE:  
Power output on CAN connectors may draw up to an additional 1A per port (non-isolated models).  
190 mA per port (isolated models) given 150mA current draw in the +5V output.  
PC Bus Interface  
PC/104  
Optical/Power Isolation (CANpro/104 Opto models only)  
500V for each CAN port from the host system and other isolated CAN ports.  
Dimensions  
Compliant to PC/104 specification 2.5  
Connectors/Interface  
Standard: 10-pin, right angled header (+5V power output)  
Optional: DB-9  
Certification  
Certification for CANpro/104  
The CANpro/104 product family is to be included into a device ultimately subject to FCC, DOC/IC, and CE  
certification. The customer is responsible for bringing the completed device into compliance prior to resale.  
Connect Tech has designed CANpro/104 with EMI and EMC considerations such as:  
Ground and power planes  
Controlled slew-rate signals  
EMI/EMC reducing PCB layout  
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Limited Lifetime Warranty  
Connect Tech Inc. provides a Lifetime Warranty for all Connect Tech Inc. products. Should this product, in  
Connect Tech Inc.'s opinion, fail to be in good working order during the warranty period, Connect Tech Inc.  
will, at its option, repair or replace this product at no charge, provided that the product has not been subjected  
to abuse, misuse, accident, disaster or non Connect Tech Inc. authorized modification or repair.  
You may obtain warranty service by delivering this product to an authorized Connect Tech Inc. business  
partner or to Connect Tech Inc. along with proof of purchase. Product returned to Connect Tech Inc. must be  
pre-authorized by Connect Tech Inc. with an RMA (Return Material Authorization) number marked on the  
outside of the package and sent prepaid, insured and packaged for safe shipment. Connect Tech Inc. will  
return this product by prepaid shipment service.  
The Connect Tech Inc. lifetime warranty is defined as the serviceable life of the product. This is defined as  
the period during which all components are available. Should the product prove to be irreparable, Connect  
Tech Inc. reserves the right to substitute an equivalent product if available or to retract lifetime warranty if no  
replacement is available.  
The above warranty is the only warranty authorized by Connect Tech Inc. Under no circumstances will  
Connect Tech Inc. be liable in any way for any damages, including any lost profits, lost savings or other  
incidental or consequential damages arising out of the use of, or inability to use, such product.  
Customer Support Overview  
If you experience difficulties after reading the manual and/or using the product, contact the Connect Tech  
reseller from which you purchased the product. In most cases the reseller can help you with product  
installation and difficulties.  
In the event that the reseller is unable to resolve your problem, our highly qualified support staff can assist  
you. Our online Support Center is available 24 hours a day, seven days a week on our website at:  
for product manuals, installation guides, device driver software and technical tips. Submit your questions to  
our technical support engineers at [email protected]. Our technical support is always free.  
Contact Information  
Telephone/Facsimile  
Technical Support representatives are ready to answer your call Monday through Friday, from 8:30 a.m. to  
5:00 p.m. Eastern Standard Time. Our numbers for calls are:  
Toll: 800-426-8979 (North America only) | Tel: 519-836-1291 | Fax: 519-836-4878 (online 24 hours)  
Email/Internet  
You may contact us through the Internet. Our email and URL addresses are:  
Mail/Courier  
Connect Tech Inc.  
42 Arrow Road  
Guelph, ON N1K 1S6 Canada  
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