Why do i get error 1122 at dequeue element in consumer loop when i hit stop button

Question

when i hit stop button from vi, the producer loop stops, the consumer loop gets an error and stops without reading all the elements and then my check queue status loop continues to run becuase it never goes to 0.
Any help?
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READ SIC AND LOG.vi ‏48 KB

Answer 1

matt198717 wrote:
i believe this is what you were talking about.  If youve got any advice or pointers for this VI please let me know.
1. Your consumer loop should be using the Dequeue Elements.
2. Your consumer loop should actually be releasing the queue in the STOP case.
3. There is also no need for the polling to see how many elements are left in the queue.
4. Your wait in the producer loop shold only be when there is no data in the buffer (you have it in the wrong case).
5. Do not use the value from the Bytes At Port to tell the VISA Read how many bytes to read.  You tell the VISA Read to read more bytes than you would ever expect the message to be.  Let the termination character stop the read.
6. Use a VISA read right after intializing your port to sync up your messages.
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Attachments:
Serial Port Producer Consumer.png ‏32 KB