NI PXI/PCI-5411/5431
Minimum Waveform Size and Resolution

The memory architecture of the NI PXI/PCI-5411/5431 imposes certain requirements on the waveform size and resolution. The minimum waveform size for Arbitrary Waveform Generation mode is 256 samples, and the waveforms must be in multiples of eight samples. If these waveform requirements are not met, NI-FGEN returns an error. For example, if you request the NI 5411/5431 to load a waveform of 257 samples, NI-FGEN returns an error.