Windows CAN Driver Release Notes

CAN Driver for Windows 2000/XP/Vista/7

(c) 1997 - 2012 esd electronic system design gmbh

Release Notes

Release notes for the CAN driver supporting Windows 2000/XP/Vista/7 (32-bit), Windows XP/Vista/7 (64-bit) and the server editions of these operating systems (Windows Server 2003/2008/2008R2). The driver releases are organized as packages. A package contains the driver itself, driver related libraries and files for driver configuration. The package release version is loosely coupled with the driver versions of the package but a complete package may contain drivers with higher or lower version numbers. A summary of which file versions are distributed in which package and what hardware is supported by a particular driver can be found at the end of this document.

Revision history

Summarized below are the the improvements, changes and fixes between different package releases in reverse chronological order.

Driver Package 2.6.2

2012-03-12

CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Fixed possible BSOD on Windows 64-Bit versions if Listen Only mode is enabled.
CAN-USB/2, CAN-AIR/2, CAN-CBX-AIR2: Fixed spurious occurenece of invalid timestamps.
CAN-CBX-AIR2: Fixed indication of wrong CAN controller frequency.
CAN-PCI/405: Fixed possible wrong order of received frames in case of interaction.
CAN-PCI/405: Fixed CAN bus error handling might stall Tx engine in rare cases.
CAN-PCI/400, CAN-PCIe/400, CPCI-CAN/400 and PMC-CAN/400: Support for error injection.

Driver Package 2.6.1

2011-07-07

Support for new devices: CAN-CBX-AIR/2, CAN-PCI/400, CAN-PCIe/400, CPCI-CAN/400 and PMC-CAN/400 (32- and 64-bit driver).
CAN-PCI/405: Initial release of Windows 64-Bit driver.
All drivers/devices: Support for calculating and returning configured bitrate details.
All drivers/devices: Support to mark CAN messages received via interaction.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Support for extended CAN bus diagnostic functionality and events.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Support for busload event.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Fixed last index of ESD bitrate table ignored in autobaud.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: CAN bus error events are created on IRQ level so they get the correct timestamp in relation to CAN bus messages.
CAN-USB/2, CAN-AIR/2, CAN-CBX-AIR2: Support for extended CAN bus diagnostic functionality and events (Requires FW >= 1.1.0).
CAN-PCI/331, CPCI-CAN/331, PMC-CAN/331: Support for 8 byte baudrate change event.
CAN-PCI/405: Added missing main event long message available for other devices.
All drivers/devices: Improved WMI support.
All drivers/devices: The very first event log message after driver installation no longer uses "Unknown" for the device name.
All drivers/devices: Several changes to improve driver robustness and performance.
Installation: The 32-bit driver packages are distributed with the same code signing policy as the 64-bit versions.
Installation: Copy CAN class related property sheet page provider with driver update.
Installation: Configure WMI security for Windows Vista and later.
Configuration: The Settings tab of the CAN device's property sheet in the device manager is extended to show CAN controller type and clock instead of bus type.
Configuration: The Settings tab of the CAN device's property sheet in the device manager disables HW/FW/Driver version if device is disabled instead of using the last requested values.

Driver Package 2.5.4

2009-10-07

All drivers/devices: All driver ready for Windows 7 (32-bit and 64-bit version).
CAN-USB/2 and CAN-AIR/2: Error recovery for stalled pipes as a result of USB communication errors.
CAN-USB/2 and CAN-AIR/2: Fixed BSOD for surprise removal on SMP machines.
Installation: All PCI driver gets installed with CPU affinity set to 'Any'.
CAN-PCI/405: Improved autobaud detection performance which can now be combinded with Listen Only mode (Driver Rev. 3.9.0).
CAN-PCI/405: Fixed aborting pending read/write requests via canIoctl() always fails (Driver Rev. 3.9.0).
CAN-PCI/405: Fixed several issues concerning the auto RTR support (Driver Rev. 3.9.0).
CAN-PCI/405: Fixed driver never returns from canClose() under certain conditions (Driver Rev. 3.9.0).
CAN-PCI/405: Fixed inopportune timeout in canSend() which might result in lost messages for low bitrates (Driver Rev. 3.9.0).
CAN-PCI/405: Fixed loading/unloading driver could freeze system (Driver Rev. 3.9.1).

Driver Package 2.5.3

2008-11-10

All drivers/devices: Fixed bug that a firmware update might fail if not performed on the logical base net.
CAN-USB/2: Support for more than one physical CAN port.
CAN-PCI/331, CPCI-CAN/331, PMC-CAN/331: Fixed further situation where a CAN message might get an 'old' timestamp.

Driver Package 2.5.2

2008-08-25

Support for new devices: CAN-AIR/2.
All drivers/devices: Performance improvements in multi core environments.
All drivers/devices: Support for Smart Suspend mode to prevent a change of system power state if the CAN device is in use.
CAN-PCI/405: Minimized jitter in scheduling (Driver Rev. 3.8.0).
CAN-PCI/405: Added support for counters in scheduled CAN frames (Driver Rev. 3.8.0).
CAN-PCI/405: Fixed driver might hang in close for handles in scheduling mode (Driver Rev. 3.8.0).
CAN-PCI/405: Fixed serial number shows up as N/A on PCI405B4 variants (Driver Rev. 3.8.1).
CAN-PCI/405: Fixed firmware signals readiness to early, so that host driver load could fail with Error 10 in device manager. (Driver Rev. 3.8.1).
CAN-PCI/405: Fixed system crash with BSOD, if DMA Buffer crosses a 16 MB aligned address (Driver Rev. 3.8.1).
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266, CAN-PCI/331, CPCI-CAN/331, PMC-CAN/331, CAN-PCI/360, CPCI-CAN/360:Added support to configure the CPU affinity of the interrupt handler to either a single CPU (default) or to run on an arbitrary free CPU. Please refer to the installation manual for the impact of these options.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Added support for baudrate change event with 8 data bytes.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Fixed timestamp not applied to baudrate change event.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, PMC-CAN/266: Fixed minimal chance that a received CAN message is discarded during recovery from a CAN controller error state.
CAN-PCI/331, CPCI-CAN/331, PMC-CAN/331: Fixed situation where a CAN message might get an 'old' timestamp.
CAN-USB/2: Support for auto-baudrate detection and baudrate change events with 8 bytes (Requires FW >= 1.0.04).
CAN-USB/2: Fixed problems returning from a system suspend to disk or RAM (Requires FW >= 1.0.04).
Configuration: The layout of the Settings tab of the CAN device's property sheet in the device manager is changed.
Configuration: The Settings tab of the CAN device's property sheet in the device manager is extended to indicate the new device capability Scheduling.
Configuration: The Settings tab of the CAN device's property sheet in the device manager is extended to configure the CPU affinity of the interrupt handler for CAN hardware which supports software generated timestamps.
Configuration: The Settings tab of the CAN device's property sheet in the device manager is extended to enable/disable the Smart Suspend feature.
Configuration: The Settings tab of the CAN device's property sheet in the device manager now implements context sensitive help for the various settings.
Configuration: Fixed that the 64-bit NTCAN library wasn't present in the list box of libraries which gets installed with the device driver on the Settings tab of the CAN device's property sheet.

Driver Package 2.5.1

2007-07-11

Support for new devices: PMC-CAN/266.
All drivers/devices: Support for setting bitrates numerically.
All drivers/devices: Improved error information in event log in case of driver initialization problems.
All drivers/devices: Support for baudrate change event with 4 data bytes.
CAN-PCI104/200: Fixed bug driver start failed with invalid hardware revision if EEPROM is programmed with default factory data.
CAN-USB/2: Fixed bug IDs are disabled on device if first application disables an ID.
CAN-USB/Mini: Resetting device is repeated if first reset failed during driver startup.
CAN-PCI/405: Fixed cleanup problem of TX scheduling.
CAN-PCI/405: Fixed initial start is marked as failed in device manager because arbitrary node number is assigned.
Installation: Every driver gets an own INF file for 32- and 64-bit installations as otherwise Windows Vista doesn't install the driver if any of the driver files which are listed in the common INF file are missing.
Configuration: PMC indicated as separate bus type.

Driver Package 2.5.0

2007-05-02

Support for new devices: CAN-PCIe/200, CAN-USB/2 and CAN-PCI104/200.
All drivers: Support for Windows Vista (32-bit and 64-bit version).
All drivers: All drivers, libraries and executables of the driver package are digitally signed by esd electronic system design gmbh using Microsoft Authenticode technology so the end user can verify at any time the publisher and the code integrity of these files. In addition the complete 64-bit driver package complies with the kernel-mode code signing requirements of the x64-based versions of Windows Vista.
All drivers/devices: Support for capturing timestamp of incoming CAN message. If timestamping isn't supported by the CAN hardware the CAN message is timestamped by the interrupt handler in software.
All drivers/devices: Support to abort blocked receive/transmit operations without forcing a close handle operation. To distinguish both situations an aborted operation returns with NTCAN_OPERATION_ABORTED and a closed handle with NTCAN_HANDLE_FORCED_CLOSE.
All drivers/devices: CAN messages received in object mode are marked again invalid, as soon as the data isn't updated any more.
All active devices: Improved speed of firmware update.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, CAN-USB/Mini, CAN-USB/2: Support for Listen Only mode where the CAN controller is receiving CAN messages but stays passive on the bus.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200, CAN-USB/Mini, CAN-USB/2: Support for Smart Disconnect mode where the CAN controller becomes passive on the bus as soon as the last handle is closed.
CAN-PCI/200, CAN-PCI/266, CPCI-CAN/200, CAN-PCIe/200, CAN-PCI104/200: Support for auto-baudrate detection.
CAN-PCI/266: Fixed device failed returning from low power state.
CAN-PCI/331: Reduced occurrence of retries on PCI bus in case of high CAN bus load.
CAN-PCI/331 and CAN-PCI/360: Reduced driver initialization time.
CAN-PCI/405: Major change because of implicit update to new bootloader on PCI405 board which improves latency returning hardware timestamp.
All drivers/devices: The Version tab of the driver's property sheet now lists all CAN devices which are supported by the driver.
Installation: Using separate installer files canesd32.inf and canesd64.inf for 32-bit and 64-bit Windows versions instead of common canesd2k.inf. 64-bit driver package is signed.
Installation: 64-bit version of NTCAN library is installed as ntcan.dll instead of ntcan64.dll as in previous releases for 64-bit Windows.
Installation: Adapted all device display names in cases they differ from the names printed in catalog.
Configuration: The Settings tab of the CAN device's property sheet in the device manager is extended to indicate the new device capabilities Timestamp, Listen Olny and Smart Disconnect as well as the timestamp frequency and type.
Configuration: PCIe and PCI-104 are indicated as separate bus types.
Configuration: The Smart Disconnect feature can be enabled/disabled (default: disabled).
Configuration: The icon is updated and changed to a Vista compatible version.

Driver Package 2.4.3

2006-03-02

Support for new devices: CPCI-CAN/200
CAN-PCI/405: Support for auto-baudrate detection.
CAN-PCI/405: Support for numerical setting of baudrate.
CAN-PCI/405: Support to purge receive FIFO.

Driver Package 2.4.2

2005-09-19

All drivers/devices: Initial support for Windows XP x64 Edition and Windows Server 2003 x64 with 64-bit driver and device mananger support and libraries supporting 32-bit and 64-bit applications.
CAN-PCI/200 and CAN-PCI/266: Fixed several issues with CAN messages with DLC is > 8.
CAN-USB/Mini: Fixed event log pollution during FW update introduced with previous release.
CAN-PCI/405: Support for handle specific 29-bit filter mask.
Configuration: Search in SysWow64 directory on 64-bit Windows for libraries, too.

Driver Package 2.4.1

2004-10-15

Support for new devices: CAN-PCI/405
CAN-USB/Mini: Fixed bug with stalled Tx operations with firmware >= 0.C.44. The issue is indicated in the system event log.

Driver Package 2.4.0

2003-01-17

CAN-PCI/200, CAN-PCI/331, CAN-PCI/360, CPCI-CAN/360: Initial release as WDM driver with Plug'n'Play, Power Management and WMI support.
Support for new devices: CAN-PCI/266 and PMC-CAN/331.
All drivers/devices: Updating firmware is only possible if no other handle is open and opening handle while updating firmware isn't possible any more.
All drivers/devices: Handle situations where host PC overruns CAN device FIFO with canIdAdd(), canIdDelete() and canClose().
All drivers/devices: Support for handle specific 29-bit filter mask.
All drivers/devices: Support to purge receive FIFO.
All drivers/devices: Support to return serial number of CAN device.
All drivers/devices: Support to return number of available receive messages in receive FIFO.
CAN-PCI/200, CAN-PCI/266: Support for new baudrate table indices for 800 KBit/s, 1,6 MBit/s and 83,3 KBit/s.
CAN-PCI/331: Fixed several issues restoring device context after returning from lower power state.
CAN-USB/Mini: Support for new baudrate table indices for 800 KBit/s, 1,6 MBit/s and 83,3 KBit/s for firmware revision >= 0.C.49
CAN-USB/Mini: Fixed bug with stalled Tx operations with firmware < 0.C.44.
Installation: DeviceNet support library (dnet.dll) no longer installed with driver as all driver related dependencies are removed.
Configuration: Fixed Settings tab of the CAN device's property sheet is also displayed in the class property sheet with junk data.
Configuration: Libraries which aren't present on the system are no longer displayed.
Configuration: Show device's serial if supported.

Driver Package 2.3.0

2002-07-03

Support for new devices: CAN-USB/Mini WDM driver with Plug'n'Play, Power Management and WMI support.
All drivers/devices: Support for Rx object mode.

Driver Package 2.2.0

2001-09-03

CAN-PCI/200, CAN-PCI/331, CAN-PCI/360, CPCI-CAN/331, CPCI-CAN/360: Initial release with Windows NT based driver.
Installation: Installed via hardware wizzard based on INF file canesd2k.inf.
Configuration: Configured via Settings tab of a CAN device's property sheet in the device manager.

Package content

The following table gives an overview which version of the binaries is distributed in a driver package.

Package/ File	2.2.0	2.3.0	2.4.0	2.4.1	2.4.2	2.4.3	2.5.0	2.5.1	2.5.2	2.5.3	2.5.4	2.6.1	2.6.2	Description
c200.sys	2.2.0	2.3.0	2.4.0	2.4.0	2.4.2	2.4.3	2.5.0	2.5.1	2.5.2	-	-	2.6.1	2.6.2	CAN-PCI/200 driver (32-bit)
c331.sys	2.2.0	2.3.0	2.4.0	2.4.0	2.4.2	2.4.2	2.5.0	2.5.1	2.5.2	-	2.5.4	2.6.1	2.6.2	CAN-PCI/331 driver (32-bit)
c360.sys	2.2.0	2.3.0	2.4.0	2.4.0	2.4.2	2.4.2	2.5.0	2.5.1	-	-	-	-	-	CAN-PCI/360 driver (32-bit)
c400.sys	-	-	-	-	-	-	-	-	-	-	-	3.9.63	3.9.70	CAN-PCI/400 driver (32-bit)
pci405.sys	-	-	-	3.6.2	3.6.3	3.6.4	3.7.4	3.7.5	3.8.0 3.8.1	-	3.9.0 3.9.1	-	3.9.3	CAN-PCI/405 driver (32-bit)
usb331.sys	-	2.3.0	2.4.0	2.4.1	2.4.2	2.4.2	2.5.0	2.5.1	-	-	-	-	-	CAN-USB/Mini driver (32-bit)
usb2292.sys	-	-	-	-	-	-	2.5.0	2.5.1	-	2.5.3	2.5.4	2.6.1	2.6.2	CAN-USB/2 driver (32-bit)
c200a.sys	-	-	-	-	2.4.2	2.4.3	2.5.0	2.5.1	2.5.2	-	-	2.6.1	2.6.2	CAN-PCI/200 driver (64-bit)
c331a.sys	-	-	-	-	2.4.2	2.4.2	2.5.0	2.5.1	2.5.2	-	2.5.4	2.6.1	-	CAN-PCI/331 driver (64-bit)
c360a.sys	-	-	-	-	2.4.2	2.4.2	2.5.0	2.5.1	-	-	-	-	-	CAN-PCI/360 driver (64-bit)
c400a.sys	-	-	-	-	-	-	-	-	-	-	-	3.9.63	3.9.70	CAN-PCI/400 driver (64-bit)
pci405a.sys	-	-	-	-	-	-	-	-	-	-	-	3.9.2	3.9.3	CAN-PCI/405 driver (64-bit)
usb331a.sys	-	-	-	-	2.4.2	2.4.2	2.5.0	2.5.1	-	-	-	-	-	CAN-USB/Mini driver (64-bit)
usb2292a.sys	-	-	-	-	-	-	2.5.0	2.5.1	-	-	2.5.4	2.6.1	-	CAN-USB/2 driver (64-bit)
ntcan.dll	2.0.1	2.3.1	3.1.0	3.1.0	3.1.1	3.1.1	4.1.1	4.1.1	4.2.4	4.2.4	4.2.7	4.4.1	4.6.0	NTCAN library (32 and 64-bit)
canui32.dll	1.0.0	1.0.1	1.0.2	1.0.2	1.0.3	1.0.3	1.2.1	1.2.2	1.3.0	1.3.0	1.4.0	1.4.2	1.4.2	Property sheet (32-bit)
calcan32.dll	1.6.2	1.6.3	2.0.4	2.0.4	2.2.2	2.2.2	2.3.2	2.3.2	2.4.4	2.4.4	2.5.3	2.5.5	2.5.7	CALCAN library (32-bit)
dnet.dll	1.1.3	1.1.3	-	-	-	-	-	-	-	-	-	-	-	DeviceNet library (32-bit)
canui64.dll	-	-	-	-	1.0.3	1.0.3	1.2.1	1.2.2	1.3.0	-	1.4.0	1.4.2	1.4.2	Property sheet (64-bit)
calcan64.dll	-	-	-	-	2.2.2	2.2.2	2.3.2	2.3.2	2.4.4	-	2.5.3	2.5.5	2.5.7	CALCAN library (64-bit)

Supported CAN hardware

Serveral driver support more than one can hardware device. The following table gives an overview which CAN hardware is supported with the latest release of each driver binary.

Driver	c200.sys c200a.sys	c331.sys c331a.sys	c360.sys c360a.sys	c400.sys c400a.sys	pci405.sys pci405a.sys	usb331.sys usb331a.sys	usb2292.sys usb2292a.sys
Supported CAN hardware	CAN-PCI/200 CAN-PCI/266 CPCI-CAN/200 CAN-PCIe/200 CAN-PCI104/200 PMC-CAN/266	CAN-PCI/331 CPCI-CAN/331 PMC-CAN/331	CAN-PCI/360 CPCI-CAN/360	CAN-PCI/400 CPCI-CAN/400 CAN-PCIe/400 PMC-CAN/400	CAN-PCI/405	CAN-USB/Mini	CAN-USB/2 CAN-AIR/2 CAN-CBX-AIR/2

Known Issues

The 3.x driver do not support any Sleep mode. As since Windows Vista a driver can no longer prevent the change to a low power mode by itself the system administrator has to make sure that the system is configured accordingly.