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61056 Error massage

Hi all
   I have questions on FPGA module. I have FPGA board 7833PCI and try to make some square wave out of Digital Output.  When I use my timed loop, I get the error massage saying 61056  Component ddata16_res has invalid arbitration for single-cycle timed loop & 61056  Component denable16_res has invalid arbitration for single-cycle timed loop.  I thought maybe my program has some problem so I tried the test 40mhz.vi posted on this disscussion forum.  it gives me the same error while compiling.  Is there something wrong with my board?  I also tried boolean array of 010101010101010101 in while loop and write to digital output.  This one also gives me 5Mhz as the fastest frequency I can generate and it does not look anything like square wave.   How can I get faster frequency output?  
 
Thank you very much in advance
Hideya
 
  
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Hideya,

Have a look at this Knowledge Base article:

Code Generation Error 61056: Invalid Arbitration for Single-Cycle Timed Loop

--Paul Mandeltort
Automotive and Industrial Communications Product Marketing
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