Fez Panda - can anybody confirm the maximum frquency - was hoping for a 6MHz which works out as 166 tried 166,83 and get 2Mhz?
6mhz will work. Please show some code
Seems it was the knob on the keyboard 
If you adjust the sample rate to something faster than you are trying to measure it may work better !
Many thanks for the fast response.
My first venture with a Panda so guess I will be back with more questions