User manual

Chapter 4: PowerDAQ Software (SDK)

Analog Output Subsystem

There are four update modes for the analog output subsystem:

• Polled I/O update mode

• Buffered event-based waveform mode using PCI

interrupts

• Buffered polled-I/O waveform mode

• Auto-retriggerable waveform mode

Method A. Polled I/O update mode

See SDK Examples SimpleAOut.cpp, SimpleTest.vbp

This method allows you to update analog output values immediately

(see Functional Overview for data format).

Initialization

• Reset the board

# _PdAInReset(…)

Output value

• Output analog output value

# _PdAOutPutValue(…)