[time-nuts] M12+T more confusion

Brooke Clarke brooke at pacific.net
Fri Nov 21 22:53:24 UTC 2008


Hi Norman:

Can you save the LV program to run with version 7 and email it program to me?

Have Fun,

Brooke Clarke
http://www.prc68.com

Norman J McSweyn wrote:
> Matt Osborn wrote:
>> I'm not a Labview expert, but I've seen Labview do that with messages
>> from other devices. Labview (or more likely, its programmer) has
>> issues dealing with threading issues.
>>  
>> On Fri, 21 Nov 2008 00:58:36 -0500, Norman J McSweyn
>> <normn3ykf at stny.rr.com> wrote:
>>
>>> Gentlemen:
>>> Why would the M12+T swap the order of messages?
>>>
>>> I write @@Hn and @@Eq in that order to the board and it gives it back to 
>>>  me in reverse order.
>>>
>>> Tried @@Cf then resending the messages. Still the same. Then did it AND 
>>> swapped the order of the messages. Still the same.
>>>
>>> The manual says it's first in, first out regarding the serial buffer.
>>>
>>> I'm using Labview 8.
>>>
>>> Norm n3ykf
>>>
>>>
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>> -- kc0ukk at msosborn dot com
>>
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>>
> Matt,
> Could be a loose nut issue. However, using different messages as a test 
> reveals that "first in first out" in different circumstances is the 
> behaviour.
> 
> The first part of this .vi just writes a string to the device.
> The second reads the buffer (and loops).
> After reading the buffer, I flush it. Just to make sure that I will get 
> a clean read next iteration.
> 
> Any pointers to troubleshooting will be greatly appreciated.
> 
> Why would threading have anything to do with it?
> 
> Just for giggles, I'll try not closing the Visa session until the .vi 
> completes.
> 73 de Norm n3ykf
> 
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