Memory Conflicts using an NI 8 port serial card PCI-8430

[ML-XP]

First, installing the NI PCI-8430/8 results in a memory conflict on all ports

as reported by windows XP/control panel/system/hardware devices.

 

Second, I am running a download to unit under test LabVIEW vi (8.5.1)

as a reentrant vi to download 8 units in parallel. The result is data corruption

on one or more of the units under test.

 

The NI card is being used to upgrade for an alternate source version.

The alternate source does not exhibit this condition.

 

Thanks,

[pflores]

Hello,

Can you give more details (a screenshot, maybe) on the memory conflict you are seeing in the Device Manager? How does it look in MAX (Measurement Automation Explorer)?

Can you post a simple version of your VI that will reproduce this issue? Again a screenshot of the data corruption would be helpful.

Thanks!

[ML-XP]

Hello,

I have attched a screen shot of the device manager conflicts.

Each of the 8 ports have the same conflicts with all other ports.

The application is using VISA serial read and write. The application reads data from a text file

and uses a timed loop where a fixed number of bytes are written to the device under test until

all data read from the file is transmitted.

We have been unsuccessful in reproducing the symptom outside of our application.

Thanks,

Mike

[Justin_E]

Hey Mike,

Does this device manager conflict affect the functionality of these cards? Can you still run your application/see the device in MAX without any issues?

[JasonSmith]

This is the expected behavior for these boards. The same memory range is listed for each of the ports, so Windows reports a conflict, even though the driver handles the sharing of the memory properly. This inconvenience will be resolved with our next release of NI-Serial, which will no longer show the memory conflict.

-Jason S.