C Test acquisition shows discontinuities

[cedricpradalier]

Hi,

I'm trying to setup a small test program (in C) where I setup one of the output 1 to send a 10kHz sine wave (copied the code from continuous_signal_generation.c), looping back the channel to input 1, and acquiring 16kS on input1 (again a copy-paste of the example code, acquire_signal_on_fast_analog_input.c).

Whatever I'm doing , I always seem to find discontinuities in the resulting signal, as if the buffer was overwritten while reading it, of as if the acquisition was not real-time.

Could someone point me to some starting points to debug this behaviour? Ideally, a working example of the loop-back test would be very much appreciated.
Thanks