Object Type:	funcgen

Description:

This is a function generator which produces periodic output with a waveform
set by the mode field.

Author:		M. Wilson, Caltech (4/89)

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ELEMENT PARAMETERS

DataStructure:	funcgen_type  [in src/device/dev_struct.h]

Size:		96 bytes

Fields:		mode		flag: 0=sine; 1=square; 2=triangle; 3=constant
		amplitude	peak-to-peak amplitude
		dc_offset	constant to be added to output
		phase		phase in degrees
		frequency	frequency
		output		output waveform

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SIMULATION PARAMETERS

Function:	FunctionGenerator  [in src/device/funcgen.c]

Classes:	device

Actions:	CHECK  PROCESS  RESET

Messages:	AMPLITUDE amplitude
		DC_OFFSET dc_offset
		PHASE phase
		FREQUENCY frequency

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Notes:

In a simulation, you would set up messages between the funcgen element
(in our example it is called "funky") and other elements which are to
receive its output.  For example:

  addmsg funky funcplot PLOT output *function *red  // funcplot is an xgraph
  addmsg funky Exc_channel ACTIVATION output  // Exc_channel is a synchan

Example:	Scripts/examples/sigmoid

See also: