To verify that last sentence of rising/falling edge ignorance I made an experiment. I use a programmable function generator. On channel 1 a ramp (100kHz) on 2 a pulse with a width so that the rising and falling edges are at distinctly different point of the ramp. When I switch between sample point at rising or falling edge I should get the level of the ramp at these instants.
This is not true. "DAQmx Timing.vi / Sample Clock" obviously ignores the entry and always uses falling edge. Gabi
