Analog Devices iSensor FX3 API Documentation
Namespaces
FX3Api
FX3Connection Class
FX3Connection Methods
ISpi32Interface.GetBufferedStreamDataPacket Method
ISpi32Interface.BackgroundWorker) Method
BitBangReadReg16 Method
BitBangSpi Method
BitBangWriteRegByte Method
BootloaderBlinkLED Method
BootloaderTurnOffLED Method
BootloaderTurnOnLED Method
CancelStreamAsync Method
ClearBurstMode Method
ClearErrorLog Method
Connect Method
Disconnect Method
FX3CodeRunningOnTarget Method
GetBuffer Method
GetBufferedStreamDataPacket Method
GetErrorLog Method
GetErrorLogCount Method
GetI2CBuffer Method
GetPinPWMInfo Method
GetStreamDataPacketU16 Method
GetTimerValue Method
I2CReadBytes Method
I2CWriteBytes Method
ISpi32StopStream Method
isPWMPin Method
MeasureBusyPulse Method
MeasurePinDelay Method
MeasurePinFreq Method
PulseDrive Method
PulseWait Method
PurgeBadFrameData Method
ReadDRFreq Method
ReadFlash Method
ReadPin Method
ReadPins Method
ReadRegArray Method
ReadRegArrayStream Method
ReadRegByte Method
ReadRegWord Method
ReadTime Method
Reset Method
ResetAllFX3s Method
RestoreHardwareSpi Method
SetBitBangSpiFreq Method
SetBitBangStallTime Method
SetPin Method
SetPinResistorSetting Method
SetupBurstMode Method
Start Method
StartBufferedStream Method
StartBurstStream Method
StartGenericStream Method
StartI2CStream Method
StartPWM Method
StartRealTimeStreaming Method
StartStream Method
StopPWM Method
StopRealTimeStreaming Method
StopStream Method
Transfer Method
TransferArray Method
UserLEDBlink Method
UserLEDOff Method
UserLEDOn Method
WaitForBoard Method
WaitForStreamCompletion Method
WriteReadTransferArray Method
WriteRegByte Method
WriteRegWord Method
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FX3ConnectionMeasurePinFreq Method

Measures the frequency of an input signal to the selected pin.

Namespace:  FX3Api
Assembly:  FX3Api (in FX3Api.dll) Version: 2.9.4.0 (2.9.4)
Syntax
Copy
public double MeasurePinFreq(
	IPinObject pin,
	uint polarity,
	uint timeoutInMs,
	ushort numPeriods
)

Parameters

pin
Type: IPinObject
The pin to measure. Must be an FX3 pin object
polarity
Type: SystemUInt32
THe edge to measure from. 0 - falling edge, 1 - rising edge
timeoutInMs
Type: SystemUInt32
The time to wait for the FX3 to return values before defaulting to infinity (in ms)
numPeriods
Type: SystemUInt16
THe number of periods to sample for. Minimum value of 1

Return Value

Type: Double
The signal frequency, in Hz. Goes to infinity if no signal found.
See Also