Hi Hitesh, I wish you a happy Easter ! Back to problems... :? First I've isolated the issue, it comes from the call to ps4000RunStreaming : ps4000RunStreaming( Handle, &UsedSamplingPeriod, PS4000_NS, uint32_t(0), uint32_t( GLOBAL_PicoSignal_SampleNumber ), int16_t( true ), uint32_t( 1 ), GLOBAL_Pico...