Analog Output:General Properties:Advanced:Data Transfer and Memory:Memory Mapping for Programmed IO Enable Property

DAQmx - Data Acquisition VIs and Functions

Edition Date: January 2019

Part Number: 370469AP-01

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Short Name: AO.MemMapEnable

Property of DAQmx Channel

Specifies for NI-DAQmx to map hardware registers to the memory space of the application, if possible. Normally, NI-DAQmx maps hardware registers to memory accessible only to the kernel. Mapping the registers to the memory space of the application increases performance. However, if the application accesses the memory space mapped to the registers, it can adversely affect the operation of the device and possibly result in a system crash.

Remarks

The following table lists the characteristics of this property.

Permissionsread/write
Resettableyes
Settable while task is runningdevice-specific
Available in Run-Time Engineyes

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