I have a weird problem with a DK4000 macrocontroller. (see the
technical info here ).
Seems that it can’t be programmed reliably with LabVIEW. Each time I upload a new program, the memory content changes for something else a few seconds later.
The funny thing is that the modified program is still working, but has switched to a different task, doing something completely different.
I found out that sending an ascii string composed of a series of $2A chars (5 is optimal) can maintain a stable state for a few minutes, but not more.
After spending six months on this problem, it seems that LabVIEW is the cause of all the trouble. Probably some nasty bug with the serial communication vis.
I have attached a simplified vi to illustrate the problem. Sorry for the mess in the diagram, but that’s the result of the patch work I have been obliged to do to track the problem.
Does somebody know if the recently released new generation DK5000 still exibit this strange behaviour ?
CC
Chilly Charly (aka CC)
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