Hello,
I have a CVI 7.0 application on 2 (not identical) computers, but both have Intel Pentium 4 with Windows 2000 s.p. 4.
The application communicates with up to 6 units through RS422 and switches between the units using DI/O of ADlink units connected through USB hub and identical in both computers.
In short, the application is controlling each unit for about 10 seconds and then it shout down the units and waits like 4 hours before the next session, and this goes like 5 rounds.
Both computers worked with the application for about 4 month ok.
Since a month ago, in only one of the computers, the application is randomly and occasionally being closed by Dr Watson announcing different access violation each time like: RTLAllocatedHeap and RTLDeleteCriticalSection (and I am not using critical section in this application at all…) and sometimes without a message as a reason at all.
Must say that it happened during the break between the sessions when the application almost does nothing but waiting for a trigger to start next session.
I Tried to debug it with no success, could not catch it.
I will also add that a printer + driver were added to this computer about the same day the problem started, but there is no conflicts reported in system.
Need help in a hurry…the computer should be delivered soon….
Thanks,
Dasa.
