Hi,
I am using the Blackfin BF537 EZ-KIT LITE and I am trying to use mutiple devices.  Specifically, read from the UART1 and write that data to the UART0.
I have been able to successfully read and write separately; I have a open block running to a while loop with a read/write block inside.  But when I try to do both on the same VI (copied and pasted both into the same VI) it does not work.  I am guessing that the blackfin is not able to process both the while loops at the same time--is this true?
I then tried to put it in a sequence structure; the two open blocks followed by a while loop with a sequence structure inside: read then write.  In theory, it opens the two devices, reads from one, writes to the other, read, write, read, write, etc.  This also does not work, so I tried to do it another way:
One while loop with the following sequence structure inside: open read close, then open write close.  This was the only way I got the VI to read and write, which lead me to believe LabVIEW only allows one device to be open at a time.  If this is the case, then it seems like the only way to create the VI would be to open and close a device every time it needs to be used.  Is there some way to have multiple devices open at the same time?  If not, is there some way to make it run faster?  The opening and closing of the devices whenever it is to be used causes a long enough time delay to lose data incoming to the UART1.
Thanks in advance,
Chris