Hardware Manual RM CANview USB

Transcription

Hardware Manual
RM CANview USB
 2002 RM Michaelides Software & Elektronik GmbH • Donaustraße 14 • D-36043 Fulda • Germany • HWCVUSB V1.00
Table of Contents
1
2
3
4
5
6
General.................................................................................................................................3
Connectors ..........................................................................................................................4
LEDs .....................................................................................................................................7
Technical Data.....................................................................................................................8
Installation ...........................................................................................................................9
CANview USB Driver installation.......................................................................................9
6.1
Windows 2000 installation:..........................................................................................10
6.2
Changing the virtual COM port in Windows 2000 ........................................................13
6.3
Uninstall Windows 2000 Drivers ..................................................................................16
7 Programs ..........................................................................Fehler! Textmarke nicht definiert.
8 Hardware Version History ................................................................................................19
9 Document Version History ...............................................................................................20
Safety instructions
These instructions are part of the device. They contain text and
illustrations for the correct handling of the module and must be read
before installation or use.
Adhere to the information in the documentation. Non-observance of the
instructions, operation which is not in accordance with use as prescribed below
incorrect installation or handling can affect the safety of people and equipment.
The device must be installed, connected and put into operation by a qualified
electrician.
Disconnect the device externally before handling it. Also disconnect any
independently supplied output load circuits.
In case of malfunction of the device or uncertainties please contact the
manufacturer. Tampering with the device can seriously affect the safety of people
and equipment. This is not permitted and leads to an exclusion of liability and
warranty.
2
1 General
CANview USB is designed to connect a CAN-Bus system to a PC via USB-Port. In order to
avoid limitations in data throughput from the device to the computer the fast USB-Bus is used
for data transmission.
The CANview USB is equipped with a powerful 8 - bit microcontroller with an integrated fullCAN-interface and a flash memory that can be programmed from within the system. This
enables the implementation of company-specific protocols or additional functions.
CANview USB is powered by the USB Bus which makes it independent from an additional
power supply.
The CANview USB driver is designed to be accessed in two different ways:
1) Via direct USB access
2) Via virtual COM Port
Using the direct USB access a direct communication with the device via a driver dll is possible
in order to allow a fast and direct communication with the CANview USB.
In COM Mode the driver simulates an additional COM port in order to allow an easy access and
implementation of the device. To avoid the typical bottleneck that is common for standard
RS232 ports this simulated interface supports data transmission speeds of up to 12 Mbit/s.
Apart from that the CANview USB also provides memory to store up to 256 CAN messages in
the internal RAM.
The commands for controlling the CANview USB are designed according to the instruction set
of the CANview and the CANgateway USB. This enables the fast replacement of the RS232 to
CAN converter tool by the USB interface without any changes towards existing software.
Apart from the active mode CANview also supports a CAN passive mode in which the device
just listens to the CAN Bus with the transmission line completely disabled. Another feature is the
automatic baud rate detection.
 2002 RM Michaelides Software & Elektronik GmbH • Donaustraße 14 • D-36043 Fulda • Germany • CMCVUSB V1.00
3
For CAN data management the CANview USB is shipped with “RM CAN Device Monitor”, that
provides a comfortable user - interface for receiving, editing and sending CAN messages.
Basic configuration of CANview USB such as CAN Baud rate, Filter of CAN Messages and USB
port specific settings are done by the “RM CAN Device Configurator” Software.
This is a Class A device. It may cause radio interferences in your living
quarters. In this case the user can be asked to take adequate measures.
2 Connectors
The CANview USB is equipped with the following connectors:
CAN
USB
The 9-pin Male D-Sub Connector is used to interface the CAN Bus with the CANview USB. With
the USB connector the device must be connected to a USB Master.
4
The Pin layout of these connectors is shown in the following tables. The location of the different
pins is shown as looking directly at the plug of the device.
(CAN)
Pin
Description
1
n.c.
2
CAN-Low
3
GND
4
n.c.
5
n.c.
6
GND
7
CAN-High
8
n.c.
9
n.c.
Shell
Enclosure (Shield)
(USB)
Pin
Description
1
VBus
2
D-
3
D+
4
GND
Shell
Enclosure (Shield)
5
Important information for Using the CANview USB
- The signals on the CAN connection terminals CAN-Low and CAN-High must match the signals
on the CAN-terminals of the connected devices.
- GND of the CAN-connector has to be connected to CAN-GND
- The USB-Port is used to interface the CANview USB with the PC. It provides a data
transmission rate of up to 12Mbit/s.
For interfacing the device with a PC a standard USB cable can be used.
- It is recommeded to power the device by a USB Host or by a self powered USB Hub. On bus
powered Hubs, the Voltage drop of VBus can be to high under worst case conditions which
might prevent the device from starting up.
- As no components to be maintained by the user are contained in the device, the housing must
not be opened. The device can only be repaired by the manufacturer. The device must be
disposed of in accordance with the national environmental regulations.
- You can download the latest Version of the Firmware from www.rmcan.com .
- The USB cable length is limited to 3 m to match the EMC requirements (protection agains
surge).
- For CAN baud rates the following guidelines can be used to estimate the maximum length of
the bus-line:
CAN Baud Rate
Max. bus length
1Mbit/s
25m
800 kbit/s
50m
500 kbit/s
100m
250 kbit/s
250m
125kbit/s
500m
50kbit/s
1000m
- Be careful, if using shielded CAN cable, the galvanic isolation will be lost.
6
3 LEDs
The CANview USB device has 4 LEDs for short visual Status control. The meaning of
this LEDs is described in the Table below:
LED
Description
ON
Off:
Device has no connection to power supply
On:
Device is ready for operation
Blinking:
Device is in Configuration Mode
USB
Off:
No data is sent or received via USB
Blinking:
Data is sent or received via USB
Blinking synchronous with ERROR: USB Error occured
CAN
Off:
No data is sent via CAN
Blinking:
CAN Communication
Blinking synchronous with ERROR: CAN Error occured
ERROR
Off:
No error active
Blinking synchronous with CAN:
CAN Error
Blinking synchronous with USB:
USB Error
If an Error occurred, the error Status is send out via USB. For more
Information please look at the Command Manual for the CANview USB
If all LEDs are permanent on an no data is transmitted or received via CAN or
USB, the Bootloader of the Device is activated. Only the flashing procedure
can bring it back to normal operation mode.
7
4 Technical Data
8
Value
Description
Supply Voltage
5 V , powered via USB Bus
Current Drawn
< 100 mA after enumeration
Operating Temperature
0 - 60°C
Diagnosis LEDs
4 (ON, USB, CAN, ERROR)
Additional features
Automatic Baud Rate Detection
CAN Active / CAN Passive Mode
CAN galvanically isolated
CAN High Speed Interface (ISO11989)
Controller
8-Bit
Flash Memory Size
32k
SRAM Size
128kB
EEPROM Size
2kB
CAN Specification
2.0 A/B
CAN-Bus coupling
according to ISO 11898, High speed
Max. CAN Baud Rate
1Mbit/s
USB Baud Interface
USB 1.1
USB Buffer Memory
256 messages
USB Connector
Type B
PC Requirements
Pentium CPU, 32 MB RAM, 10 MB free Disk Space
Supported Operating
Systems
Windows 98, 98SE, ME, 2000, XP
Standard Housing
Aluminium
Dimensions in mm
(LxBxH) 98x60x35
Certifications
CE
5 Installation
Simply connect the CANview USB to the CAN network that should be monitored and to the PC.
The device will then be powered by the USB. If the device is connected to the PC for the first
time, a dialog box will open asking for a driver for the device. For further information about
installation of CANview USB drivers please read the next section.
After reading all configuration parameters from the last setup (from the internal EEPROM), the
CANview USB is ready for operation.
6 CANview USB Driver installation
The CANview USB requires special drivers in order to be used with your PC. These drivers are
available for a variety of different operating systems. Shipped with the standard package of the
CANview USB is a driver for Windows 98/ME/2000/XP that provides access to the device via a
virtual COM port. If you are interested in drivers for other operating systems or for direct access
to the device, please see our support page at www.rmcan.com or write an e-mail to
[email protected].
The virtual COM port driver for Windows simulates an additional COM port. This enables the
device to be used as a more powerful replacement for the CANview. The simulated port does
not have the limitation of the low transmission speed between the serial device and the PC but
still supports the complete command set of the pure RS232 device as well as some additional
commands. For further information about the exact commands see the CANview USB
command manual.
In order to install the Windows driver for CANview USB please follow the steps described below.
It is assumed that the drivers are installed for the first time. If you want to
update existing drivers, please uninstall the previous version. How this is
done is described in the uninstall section for your operating system.
Installing the drivers on other operating systems than windows 2000 is similar
to the described procedure.
Installing the drivers under Windows ME may cause warning messages that
the drivers are not certified by Microsoft. These messages can be ignored, the
drivers will work correctly.
9
6.1 Windows 2000 installation:
1. Connect the CANview USB to the USB port of your PC using the provided cable.
2. After this, the PC will perform a scan for new USB devices. After this scan Windows will
prompt the following dialog:
3. Select ‘Next’ to continue the setup
4. Choose the option shown below and press ‘Next’ to continue the setup.
10
5. Select the location where the driver is placed. If you install the device using the CD-ROM
shipped with the CANview USB select ‘CD-ROM drives’. Otherwise choose ‘Specify a
location’.
6. Now a message should be displayed that a driver for the CANview USB was found.
Select ‘Next’ to continue the setup.
11
7. The installation of the hardware driver is successfully finished as soon as the following
screen is displayed:
Press the ‘Finish’ button to complete the hardware driver setup.
8. Now a dialog is shown indicating that the virtual COM port needs to be installed. The
procedure for this is exactly the same as for the CANview USB driver setup.
After this setup is finished the device is ready for operation.
12
6.2 Changing the virtual COM port in Windows 2000
This feature is especially helpful if the setup-routine has chosen a very high COM port, such as
COM10, but your software only supports low COM port numbers. With the steps described
below you are able to quickly change the number of the virtual port that is used by the CANview
USB.
1. In order to change the virtual COM port open the Device Manager has to be displayed.
This can be done by executing the following steps: Open Control Panel -> System
Properties -> Hardware -> Device Manager. If you open the branch ‘Ports (COM & LPT),
a dialog similar to the one shown below should be displayed.
13
2. Double click ‘RM CANview-USB which results in the following dialog being displayed
3. Here select the tab ‘Port Settings’ which looks like shown on the following picture:
14
4. If you click at the button ‘Advanced…’ a dialog will open showing further settings of the
COM port.
Here you can change the port number by selecting another port from the drop down
menu ‘COM Port Number’.
5. To check if the CANview is now assigned to an other virtual COM port close all windows
and look at the settings in the device manager. The new COM port will be shown in the
brackets after the ‘RM CANview-USB’ label like shown in the example below.
15
Do not select a COM port that is already used by another device such as the
physically existing COM ports.
It is also recommended to close all applications that access the CANview USB
at the old COM port as well as the new one while changing the ports.
6.3 Uninstall Windows 2000 Drivers
In order to uninstall the drivers for the CANview USB please carry out the following steps:
1. Open the ‘Control Panel’ and choose ‘Add / Remove Programs’. The following dialog will
appear:
2. Press the ‘Change / Remove’ button of the ‘RM CANview USB Drivers’ section. This
starts the Uninstaller of the CANview USB Driver. It looks like shown in the following
dialog:
16
If you have pressed the button ‘Change / Remove’ in error, you can cancel the uninstall-process by clicking at ‘Cancel’ in the Uninstaller
window.
3. After unplugging the CANview USB press continue in order to uninstall the drivers. The
process is finished as soon as you see the following dialog:
Both drivers installed during setup are uninstalled by just one uninstaller.
17
7 Software
CANview USB is shipped with the following programs:
Program
Description
RM CAN Device
Configurator
Tool for configuring CAN Parameters as well as virtual COM port values
RM CAN Device Monitor
Tool for monitoring, editing and sending CAN messages
ATMEL Flip tool
Tool for flashing new Firmware to the CANview USB
For further information about the software please see the user manual of the respective
program.
18
8 Hardware Version History
16.12.00
V1.0 First official Version
19
9 Document Version History
22.10.2002
20
1.00 first official version

Hardware Manual RM CANview USB

Transcription

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