I am acquiring voltage from three differential analog input channels of a DAQ (MCC USB-1808X, to be specific), which has a maximum sample rate of 200kS/s/channel. Using other software, I am able to sample all three channels at the max rate simultaneously.
However, when using the Data Acquisition Toolbox in MATLAB, setting the sample rate using:
s.Rate = 200000;
results in an error:
Rate cannot exceed 66666 for current configuration.
If I only sample one channel, the error does not occur. This makes me think that MATLAB sees the 200kS/s rate as an aggregate rate, which is not the case.
Is there a way to override this error and force MATLAB to sample at the specified rate?
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