ZLG M.2CANFD User manual

Category
Contents
Keywords
M.2, CAN(FD) interface card
Description
The M.2CANFD is a dual-channel CAN(FD) interface card with
M.2 2280 B-M-Key specification. Backward compatibility with CAN
2.0 A/B standard enables industrial notebook computers/portable
industrial computers/single board computers (SBC) to be
connected to CAN/CAN(FD) networks through M.2 NGFF
interfaces. This constitutes a data acquisition and data processing
system in CAN/CAN(FD) network applications such as
laboratories, industrial control, and smart communities.
M.2CANFD User Manual
Industrial M.2 Interface CAN(FD) Card
UM01010101 1.2 Date:2022/5/20
User
Manual
©2022 Guangzhou ZLG Electronics Co., Ltd.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
User Manual
Revision History
Version
Date
Description
V1.0
March 18, 2021
Created

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
1
User Manual
Contents
1. Functions .....................................................................................................2
1.1 Product Overview ...................................................................................................2
1.2 Features..................................................................................................................3
1.3 Specifications .........................................................................................................4
1.3.1 Electrical Parameters...................................................................................4
1.3.2 Specifications ...............................................................................................5
1.3.3 Operating Temperature ................................................................................5
1.4 Typical Applications ................................................................................................5
2. Hardware Interfaces.....................................................................................6
2.1 CAN Communication Interface...............................................................................6
2.2 DB-9 Connector Definition......................................................................................6
2.3 Terminal Resistance ...............................................................................................6
2.4 CAN Second Function Pin Switch..........................................................................7
2.5 M.2 Goldfinger Definition........................................................................................8
2.6 Signal Indicators.....................................................................................................8
2.7 Board Installation....................................................................................................9
2.7.1 Precautions ..................................................................................................9
2.7.2 Product Dimensions...................................................................................11
2.8 System Connections.............................................................................................12
3. Driver Installation .......................................................................................14
3.1 Installing the Driver on Windows..........................................................................14
4. Packing List................................................................................................16
5. Quick Instructions ......................................................................................17
5.1 Introduction to the ZCANPRO Software...............................................................17
5.2 M.2CANFD User Guide on ZCANPRO ................................................................17
6. Disclaimer ..................................................................................................18

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
1. Functions
1.1 Product Overview
CAN FD (CAN Flexible Data-rate) is the latest upgrade of the CAN bus, with a
maximum of 64 bytes of data, and a flexible data field with a baud rate of up to 5 Mbps.
M.2CANFD CAN(FD) interface card is a M.2 NGFF to dual-channel CAN(FD)
communication interface card compatible with PCI Express r1.0a developed by
Guangzhou ZLG Electronics. The M.2CANFD interface card provides the M.2 B+M Key
interface, which enables the computer equipped with a M.2 B-key or M-Key slot to be easily
connected to the CAN/CAN(FD) bus network and monitor multiple bus networks in real
time. It is compact and can be easily embedded in single board computers (SBC), portable
industrial control hosts, and industrial notebooks. It is easy to install and simple to use.
Note: Before installation, make sure that the M.2 B-key or M-Key slot provided by the
host supports PCIe.
The M.2CANFD provides two completely independent isolated CAN (FD) channels, in
line with CAN FD ISO 11898-1:2015 specification (compatible with CAN 2.0A/B standard).
It supports a transmission rate of up to 5 Mbps, which enables flexible and convenient
applications. To improve system reliability, M.2CANFD interface card adopts 2,500 V DC
electrically isolated CAN (FD) transceiver circuit, which protects the computer from the
influence of ground circulation and enhances the reliability of the system in harsh
environments. To facilitate expansion, the second function pin of CAN signals can be
switched to the reserved PIN of the M.2 golden finger through jumper welding, which allows
users to design CAN transceiver circuits on the baseboard by themselves.
M.2CANFD interface card provides a unified application programming interface and
complete and diverse application demonstration codes, including development routines
such as VC, VB, Delphi and labview, which facilitates application development. M.2CANFD
supports OPC interfaces and can be used in configuration software that supports OPC. In
addition, we provide a powerful ZCANPRO general-purpose CAN-BUS test software for
CAN/CAN (FD) message sending and receiving and monitoring, which facilitates
development and debugging.
Note: M.2CANFD is collectively referred to as M.2CANFD interface card below.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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Figure 1.1 M.2CANFD product appearance
1.2 Features
⚫PC interface: standard M.2 B+M Key interface, 2,280 specification, compatible with
M-Key and B-Key slots;
⚫Comply with CAN FD ISO 11898-1:2015 specification (compatible with CAN 2.0A/B
standard);
⚫Number of channels: dual-channel isolated CAN interface, standard DB-9 connector
provided through the interface board;
⚫The CAN controller transceiver signal can be switched to M.2 gold finger reserved
pins, which helps users design the CAN transceiver circuit by themselves;
⚫Compatible with high-speed CAN and CANFD;
⚫The CAN interface is electrically isolated from 2,500 VDC;
⚫The CAN communication baud rate can be arbitrarily programmable between 4 Kbps
and 1 Mbps;
⚫CANFD accelerated baud rate can be arbitrarily programmable between 1 Mbps and
5 Mbps;
⚫Maximum data flow for single channel transmission: 4,000 frames per second (remote
frame, single frame transmission);
⚫The highest data flow rate received by a single channel: 10,000 frames per second
(remote frame);
⚫The interface board has a built-in 120 ohm terminal resistance, which can be
connected and disconnected by using the DIP switch;
⚫Support ZCANPRO test software (support Windows 7 and Windows 10);

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
⚫Operating temperature: -40°C to +85°C;
⚫Storage temperature: -40°C to +85°C;
⚫Length, width and height: 80 mm * 22 mm * 5.6 mm (thickness).
1.3 Specifications
1.3.1 Electrical Parameters
The safe and stable operation of the M.2CANFD interface card requires a certain
electrical environment. Table 1.1 lists the electrical parameters of the interface card.
Exceeding the parameter values listed in the table may cause the product to work unstable
and inoperative, or even burn the board.
Table 1.1 M.2CANFD interface card electrical parameters
Parameter
Test Conditions
Minimum
Typical
Value
Maximum
Unit
Working
voltage
M.2 slot
Dual channel
transceiver
3.2
3.3
3.4
V
Operating
current
External input DC
power supply
Dual channel
transceiver
--
350
--
mA
CAN
interface
Bus pin withstand
voltage
CANH、CAHL
-42
--
42
V
Terminal resistance
Enable terminal
resistance
--
120
--
Ω
Isolation withstand
voltage (between
channels)
Leakage
current less
than 1 mA
--
2500
--
VDC
Isolation withstand
voltage (channel to
system ground)
Leakage
current less
than 1 mA
--
2500
--
VDC

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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1.3.2 Specifications
Table 1.2 Product specifications
Item
Specification
M.2CANFD
PCI-9820I
PCI-9840I
PCI-9820
Number of CAN
channels
2. circuits
2-way
4 cameras
2-way
Working voltage
3.3V±5%
Power
consumption
≤3W
Isolation voltage
2500VDC
Output terminal
2x1.25-3P connector, converted into 2xDB9 through the interface board
CAN baud rate
40Kbps - 1Mbps (CAN) 1Mbps - 5Mbps (CANFD acceleration)
Data receiving
capability
10,000 frames/second/channel (remote frame, single frame transmission)
Data sending
capability
4,000 frames/second/channel (remote frame)
Windows system
driver
Support
Support
Support
Support
Linux system
driver
Support
-
-
Support
Support
VxWorks driver
—
-
Support
Support
Dimensions
(length×width)
PCB dimensions (WLH): 22.0 x 80.0 mm x 5.6 mm;
PACK board size (WLH): 31.9 mm x 36.3 mm x 14.1 mm (the length does not
include DB9).
130 ×90 mm
130 ×90 mm
130 ×90 mm
Operating
temperature
-40°C ~ +85°C
Ambient humidity
10%-90% (no condensation)
Environmental
Requirements
Keep away from corrosive gas
1.3.3 Operating Temperature
The M.2CANFD interface card can work in an industrial-grade environment. Its
applicable operating temperature range: -40°C to +85°C. Using the interface card in too
low or too high ambient temperature will make it work abnormally and shorten its service
life.
1.4 Typical Applications
⚫CAN(FD)-Bus network diagnosis and test;
⚫Electric power communication network;
⚫Industrial control equipment;
⚫Vehicle network debugging;
⚫Automotive electronics applications;

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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2. Hardware Interfaces
2.1 CAN Communication Interface
M.2CANFD uses a 1.25-3P connector. The signal definitions converted to DB9
interface pins through the attached PACK interface board meet the requirements of the CiA
standard. Table 2.1 lists the signal definitions.
2.2 DB-9 Connector Definition
Table 2.1 Pin definition of DB-9 pin connector
Pin
Signal
Description
Interface Diagram
1
NC
——
2
CAN_L
CAN_L signal cable
3
CAN_GND
Reference ground
4
NC
——
5
CAN_SHIELD
Shielded cable
6
CAN_GND
Reference ground
7
CAN_H
CAN_H signal cable
8
NC
——
9
NC
——
The signal from the DB-9 connector can be transferred to the 5-pin OPEN5 connector
through the optional DB9-OPEN5 converter.
Table 2.2 Pin definition of OPEN5 socket
Pin
Signal
Description
Interface Diagram
1
V-
Network power supply negative
2
CAN_L
CAN_L signal cable
3
CAN_SHIELD
Shielded cable
4
CAN_H
CAN_H signal cable
5
V+
Network power supply positive
2.3 Terminal Resistance
As shown in Figure 2.3, the PACK interface board attached to the M.2CANFD interface
card has a built-in 120-ohm terminal resistance. Use the DIP switch S1 to select whether
the CAN channel terminal resistance is connected to the bus network. As shown in Figure
2.4, set whether the CAN channel uses the 120 ohm terminal resistance. Before delivey,
the DIP switch is set to "ON" by default, that is, the 120 ohm terminal resistance is
connected to the corresponding bus network.
The interface card corresponds to the CAN channel at the endpoint of a CAN network.
1
2
3
4
5
6
7
8
9

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
Set the DIP switch of the corresponding channel to "ON", or connect a 120 ohm terminal
resistance between CAN_H and CAN_L of the corresponding CAN channel.
Figure 2.1 Terminal resistance selection switch
2.4 CAN Second Function Pin Switch
When you need to design the CAN transceiver circuit or improve the protection level
of the CAN signal line, you can consider connecting the second function pin of the CAN
signal to the backplane through the M.2 reserved pin. Designing the CAN transceiver circuit
yourself improves the system flexibility.
The CAN signal secondary function pin is switched through the pad jumper JP2 (as
shown in Figure 2.2). JP2 is disconnected by default, and the system uses the default on-
board CAN transceiver. When JP2 is short-circuited with solder, the second function pin of
CAN signal is automatically enabled when the system is powered on. Table 2.3 lists the pin
definitions.
Figure 2.2 CAN-TTL switch jumper

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
2.5 M.2 Goldfinger Definition
Figure 2.3 M.2 goldfinger
The definition of M.2 interface is shown in Table 2.3. The 30th, 32nd, 34th, and 36th
pins are the second function pins of the CAN.
Table 2.3 M.2 interface definition
Signal Name
Pin No.
Description
nWAKE
54
nWAKE signal/default pull-up
nRESET
50
nRESET signal/not used
TD0_REV
30
CAN0 TXD second function IO
RD0_REV
32
CAN0 RXD second function IO
TD1_REV
34
CAN1 TXD second function IO
RD1_REV
36
CAN1 RXD second function IO
REFCLK_N/P
53,55
PCIE reference clock pair
PCIE_TX_N/P
41,43
PCIE send pair
PCIE_RX_N/P
47,49
PCIE receiving pair
3.3V
2,4,70,72,74
Power supply
GND
3,27,33,39,45,51,57,71,73
Ground
2.6 Signal Indicators
The M.2CANFD interface card has 1 dual-color SYS indicator, 1 dual-color CAN0
indicator, and 1 dual-color CAN1 indicator, which indicate the running status of the device.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
Table 2.1 lists the functions of the indicators. When the indicators are in various states, the
status of the CAN bus is shown in Table 2.2.
Table 2.5 Indicator functions
Indicator
STATUS
Indication status
R（RUN）
Green
System operation instructions
CAN0
Green
The CAN interface is working properly
Red
The CAN interface is faulty
CAN1
Green
The CAN interface is working properly
Red
The CAN interface is faulty
After the M.2CANFD interface card is powered on, the system status indicator RUN is
green, indicating that the device is powered on, and the system is operating properly; if the
system status indicator RUN is off, the system power supply fails or a serious error occurs
in the system.
When the CAN0 and CAN1 indicators are green, the CAN controller has been
initialized and is working properly.
When the CAN controller has an error, the CAN0 and CAN1 indicators are red; when
the error of the CAN controller is cleared, the CAN0 and CAN1 indicators are green.
Table 2.6 CAN bus status
CAN indicator status
CAN bus status
CAN0 and CAN1 indicators are all
off
The CAN controller is disconnected from the bus
CAN0 and CAN1 indicators blink in
red and green alternately
The CAN controller is not started, and the user is prompted to
start the CAN controller
CAN0 and CAN1 green indicators
are always on
The CAN bus is operating properly
CAN0 and CAN1 red indicators
blink
The CAN-bus bus has an error or data overflow, and it may lose
frames
2.7 Board Installation
2.7.1 Precautions
M.2CANFD series interface cards are electrostatic sensitive products and should be
packed in a special anti-static protective bag before delivery. Therefore, when operating
the interface card, take necessary protective measures to ensure that the interface card is
not damaged by human contact with static electricity.
The M.2CANFD interface card should be installed when the PC/industrial computer is
powered off. Similarly, the interface card should also be disassembled when the
PC/industrial computer is powered off.
Note: Before installation, make sure that the host provides an M.2 B-key or M-Key slot
and supports PCIe.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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M.2CANFD series interface cards do not have any switches and jumpers for assigning
interrupts and I/O addresses, which are automatically assigned by the computer BIOS.
Therefore, the board must be installed in the M.2 slot before you install the driver. Figure
2.3 shows the installation procedure:
1. Power off the computer and open the computer case cover;
2. Insert the end of the M.2CANFD series interface card diagonally upward into the free
M.2 slot, and then gently press it down;
3. Tighten the screws to fix the board;
4. Power on the computer. At this time, the BIOS automatically assigns interrupts and I/O
addresses to the M.2CANFD interface card;
5. Install the driver.
Figure 2.4 M.2CANFD installation diagram (similar to MiniPCIeCANFD)

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
Figure 2.5 M.2CANFD installation diagram 2
Note: Do not remove or insert the PCI-E interface card with power is on; it is forbidden
to touch the device with your hands during installation to prevent static electricity from
damaging the device.
2.7.2 Product Dimensions
M.2CANFD complies with the M.2 2280 standard. The width is 22 mm and the length
is 80 mm. The height of the highest component on the TOP surface is 3.5 mm, and the
height of the highest component on the BOTTOM surface is 1.75 mm.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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User Manual
Figure 2.6 Product dimensions
2.8 System Connections
When the M.2CANFD interface card is connected to the CAN-bus bus, it is only
necessary to connect CAN_L to CAN_L and CAN_H to CAN_H signals. The CAN-bus
network adopts a linear topology, and the two terminals of the bus need to be installed
with 120 ohm terminal resistors; if the number of nodes is greater than 2, the intermediate
nodes do not need to install 120 ohm terminal resistors. For branch connections, the
length should not exceed 3 meters. Figure 2.2 shows the CAN-bus connection.
Figure 2.7 Linear topology of CAN-bus network
In the CAN-bus network, shielded wires are often used for interconnection, so as to
enhance the anti-interference ability. However, there are many types of shielded wires and
field wiring is complicated. Therefore, the wiring diagrams of different types of cables in
application are shown below, including the connection diagrams of double-core single-layer
shielded wire, double-core double-layer shielded wire, and three-core single-layer shielded
wire (The "equipment iron shell" in the pictures refers to the outer shell of the device, which
is grounded by default). Regardless of the type of cable, reasonable changes must be
made according to the complexity of the field wiring. Ensure the reliable grounding of the
single point of the shielded wire or ground wire at any time, and carry out on-site wiring in
strict accordance with the wiring specifications to minimize communication errors and
abnormalities, and improve the communication quality and service life of the bus.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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Figure 2.8 Double-core single-layer shielded cable connection
Figure 2.9 Double-core double-shielded cable connection
Figure 2.10 Three-core single-layer shielded cable connection

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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3. Driver Installation
This document uses a PC running Windows as an example to describe how to install
the M.2CANFD driver.
3.1 Installing the Driver on Windows
First, insert the M.2CANFD interface card into the M.2 card slot of the computer while
power off, and start the computer.
Click the official driver installation application pcie-canfd-x00u-install.exe to display the
driver software interface, as shown in Figure 3.1.
Figure 3.1 Driver software
As shown in Figure 3.2, click [Install] in the dialog box, and wait until the driver is
installed.
Figure 3.2 Installing the driver

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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After the installation is complete, the "Completing" dialolog box appears. Click the
[Finish] button to complete the installation, as shown in Figure 3.3.
Figure 3.3 Driver installation complete
After the driver is installed, if the M.2CANFD interface card is normal,
appears in the device manager, indicating that the driver is
installed correctly and a M.2CANFD interface card is inserted. At this time, the CANFD
card has been connected to the PC, and the host computer software can be used to send
and receive CAN (FD) messages. It is recommended to use the ZCANPRO software
provided by ZLG Electronics as the host computer software. Users can also develop their
own host computer software by using the provided secondary development function library.

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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4. Packing List
Table 4.1 M.2CANFD Packing List V1.00
No.
Name
Quantity
Unit
Remarks
1
M.2CANFD card
1
Piece
2
mPCIeCANFD-PACK interface
board
2
Piece
3
1.25-3P double-headed cable
2
Piece
Used to connect the
board and the
interface board
4
DB-9 nut
4
Piece
Used to fix the
interface board
5
After-sales Service Guide
1
Pcs
6
Certificate of Conformity
1
Piece

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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5. Quick Instructions
5.1 Introduction to the ZCANPRO Software
ZCANPRO is the supporting software for CAN/CANFD series products produced by
Guangzhou ZLG Electronics Co., Ltd.,
which can perform operations such as raw data transmission and reception, data playback,
and high-level protocol analysis. The software is easy to operate and powerful, and it is a
good helper for you to carry out CAN bus testing, monitoring, diagnosis, and development.
ZCANPRO software can be downloaded from the ZLG Electronics official website
http://www.zlg.cn.
5.2 M.2CANFD User Guide on ZCANPRO
After the device driver and ZCANPRO are installed, M.2CANFD can be used on the
ZCANPRO software.
For details about how to use M.2CANFD on ZCANPRO, click in the upper right
corner of the software main interface and select [Quick User Guide] in the drop-down box
(as shown in Figure 4.1). For detailed instructions for the ZCANPRO software, see [User
Manual].
Figure 5.1 Opening the Quick Guide

M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
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6. Disclaimer
Based on the principle of providing better service for users, Guangzhou ZLG
Electronics Co., Ltd. ("ZLG Electronics") will try to present detailed and accurate product
information in this manual. However, due to the effectiveness of this manual within a
particular period of time, ZLG Electronics does not guarantee the applicability of this
document at any time. ZLG Electronics shall reserve the right to update this manual without
prior notice. To get the latest version, please visit the official website of ZLG Electronics
regularly or contact ZLG Electronics. Thank you!
Right to modify the document
Guangzhou ZLG Electronics Co., Ltd. shall reserve the right to modify related
documents of M.2CANFD interface card series products at any time without prior
declaration.
ESD protection
The M.2CANFD interface card series products have electrostatic protection
capabilities to ensure the stable operation of the products. When using M.2CANFD
interface card series products, first discharge the static electricity on the body. For example,
wear a reliable grounding static ring, or touch a water pipe connected to the earth.