how to measure frequency using daq 6009

[Sumithra_Nagappan]

HAI..

   Im using PFIO line to measure the frequency..i have attached my vi along with this..output is read approximately to the given input when i highlight the execution,but when i use run and run continuosly alone,am getting incorrect values..im totally confused..suggest some ideas..

another doubt, may i use analog port to measure the frequency of an oscillator?if so kindly help me to create a vi for this also..

[sumit.sen]

From your VI, one thing is clear, you are creating a task, but you are not clearing it. Please take a look at this example:http://decibel.ni.com/content/docs/DOC-8172

[Sumithra_Nagappan]

thank you for the reply...let me check out with this..

[Sumithra_Nagappan]

Hai sen..

                I found the problem..The problem is with the DAQ, The Counter port is not functioning and it is not Reading any Inputs..suggests anything for this problem if u Could..