I am trying to stream data from both channels of a Picoscope 4227 with version 220.127.116.118 of the dll and using Python. I try to run
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sampleInterval = ctypes.c_ulong()
sampleInterval.value = 32
PS4000_NS = 2
ps4000RunStreaming( handle, ctypes.byref(sampleInterval), PS4000_NS, 0, 101372, 0, 1, 101372 )
But I get error "0x2B: PICO_INVALID_SAMPLE_INTERVAL. The sample interval selected for streaming is out of range." ... 32ns is 31.25MHz which should be fine I think.