PEAK-System Forum

We have a PCAN Pro FD unit configured for use with LIN (device ID 0x100, channels 1 and 2) on a Windows 10 OS.

Recently we noticed that traffic from our device connected for channel 1 is now appearing on channel 2. What would cause the channels to flip in the software, and, assuming this is possible is there a way to prevent this from happening? If we cannot prevent it from happening, is there a reliable way to tag or inspect for channels such that applications can connect using the appropriate one?

This system is rebooted occasionally.

Thanks

Please send more information, maybe for more easy communication by e-mail to support[at]peak-system.com

we need:
- Used Hardware type (exact part number)
- Used Firmware on the unit
- Used Windows Driver
- Used OS Version
- If used OS Version is W11 - used PC Type (Intel based or ARM)

Used hardware type(s): 17309, 13994
Used Firmware on the unit: 3.2.0
Used Windows Driver:

Driver: pcan_usb.sys
Driver Date: 11/9/2021
Driver Version: 4.3.0.16563

Used OS Version:

Edition: Windows 10 Enterprise
Version: 21H2
OS Build: 19044.2130
Experience: Windows Feature Experience Pack 120.2212.4180.0

PC Type:

Processor: Intel Core i7-10710U
System Type: 64-bit operating system, x64-based processor

Other PEAK Drivers installed:

Driver: pcan_virtual.sys
Driver: pcan_lan.sys
Driver: plin_usb.sys (1.4.1.1048)

Let me know if you require additional information.

Thanks

Hello,

aquatsr wrote: ↑

Fri 4. Nov 2022, 00:26

What would cause the channels to flip in the software, and, assuming this is possible is there a way to prevent this from happening?

we have never seen a swapp of channels wihtin the same device (e.g. Handle 1 assigned to channel2 and Handle 2 assigned to channel 1). This is extremely difficult to occur for alone since the channel handles are enumerated using fixed LIN controller indexes within a device (0 and 1 within a PCAN-USB Pro FD device), kind of "handle number" + "controller number".

Swapping the handles/channels is only possible if you explicitly tells the driver to do so, using the Windows registry.

aquatsr wrote: ↑

Fri 4. Nov 2022, 00:26

If we cannot prevent it from happening, is there a reliable way to tag or inspect for channels such that applications can connect using the appropriate one?

You can test fixing the handles as desired using the registry as mentioned. A description of how to do this can be read in the following topic:
Fixing hardware handles on a PCAN-USB Pro

aquatsr wrote: ↑

Thu 10. Nov 2022, 01:37

Let me know if you require additional information.

Can you tell us "when" this problem happens? I mean, does it happen when there is a plug-out/plug-in of the device? or does it happen when a reboot is made? or does it happen just while your application is running?

If you think, your handle input is correct and that this is a problem in the PLIN driver/software, then could you please provide us with a small application that reproduce the problem?

Thanks