Digilent WaveForms User Manual
Page 76
WaveForms™ SDK Reference Manual
Copyright Digilent, Inc. All rights reserved.
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Page 76 of 85
FDwfDigitalOutTypeInfo(HDWF hdwf,
int
idxChannel,
int
*pfsDwfDigitalOutType)
Parameters:
- hdwf – Interface handle.
- idxChannel – Channel index.
- pfsDwfDigitalOutType – Pointer to variable to receive the supported output types.
The function above returns the supported types of the channel. They are returned (by reference) as a bit field. This
bit field can be parsed using the IsBitSet Macro. Individual bits are defined using the DwfDigitalOutType constants
in dwf.h:
DwfDigitalOutTypePulse: Frequency = internal frequency/divider/(low + high counter).
DwfDigitalOutTypeCustom: Sample rate = internal frequency / divider.
DwfDigitalOutTypeRandom: Random update rate = internal frequency/divider/counter alternating
between low and high values.
FDwfDigitalOutTypeSet(HDWF hdwf,
int
idxChannel, DwfDigitalOutType v)
Parameters:
- hdwf – Interface handle.
- idxChannel – Channel index.
- v – Output mode.
The function above sets the output type of the specified channel.
FDwfDigitalOutTypeGet(HDWF hdwf,
int
idxChannel, DwfDigitalOutType *pv)
Parameters:
- hdwf – Interface handle.
- idxChannel – Channel index.
- pfEnable – Pointer to variable to receive enabled state.
The function above is used to verify the type of a specific channel.
FDwfDigitalOutIdleInfo(HDWF hdwf,
int
idxChannel,
int
*pfsDwfDigitalOutIdle)
Parameters:
- hdwf – Interface handle.
- idxChannel – Channel index.
- pfsDwfDigitalOutIdle – Pointer to variable to receive the supported idle output types.
The function above returns the supported idle output types of the channel. They are returned (by reference) as a
bit field. This bit field can be parsed using the IsBitSet Macro. Individual bits are defined using the
DwfDigitalOutIdle constants in dwf.h. Output while not running:
DwfDigitalOutIdleInit: Output initial value.
DwfDigitalOutIdleLow: Low level.
DwfDigitalOutIdleHigh: High level.
DwfDigitalOutIdleZet: Three state.