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Appendix E
Optimizing Your Transfer Rates
NI AT-DIO-32HS
NI 653X User Manual
•
Continuous Retransmit Output (pattern I/O and burst protocol)—One
buffer of data is loaded into memory one time, and output over and
over again.
•
Continuous Input (pattern I/O and burst protocol)—New data is
continually input into the application software.
The following benchmarks are results using a Dell Dimension XPS,
600 MHz, PIII, and Windows 98 SE.
Table E-3. NI AT-DIO-32HS Benchmark Results
Mode
Pattern I/O–
Single Shot
Pattern I/O–
Continuous
Pattern I/O–
Continuous
Retransmit
Burst Protocol–
Continuous
Burst Protocol–
Continuous
Retransmit
8-Bit
Samples
Input
1.67
Output
1.47
Input
1.67
Output
1.43
Input
1.74
Output
1.51
E-4
Benchmark Rate
(MS/s)
16-Bit
32-Bit
Samples
Samples
.87
.83
.74
.38
.80
.31
.67
.39
.87
.43
.76
.37
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