Logisim Front Panel

This library contains additional I/O components for the Logisim simulator.

It is compatible with version of 2.7.1 of classic Logisim and has not been tested with any of the subsequent forks.

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Components

RGB Matrix

The RGB Matrix component represents a mutliplexed grid of tri-colour LEDs. Images can be built up over time by scanning through the display lines. The component simulates the "flicker fusion" which takes place in the human visual system at high frequencies, allowing the image of inactive lines to persist and shades of colour to be produced via pulse-width modulation.

Port	Description
External Trigger	This port only appears when the Image Update Mode requires it.
Red Line	Bit vector indicating the active red LEDs in the selected line(s).
Green Line	Bit vector indicating the active green LEDs in the selected line(s).
Blue Line	Bit vector indicating the active blue LEDs in the selected line(s).
Line Selector	Bit vector which selects the active lines.

Attribute	Description
Data Width	The number of pixels in a line.
Selector Width	The number of lines in the matrix.
First Data Line	The orientation of the first line of pixels.
Fusion Window	The number of ticks over which the intensity of each pixel is calculated.
Maximum Duty	The number of ticks a pixel must be driven in order to achieve maximum intensity.
Show Selected Lines	Whether the component visually indicates which lines are currently selected.
Image Update Mode	The condition under which the buffered display image is updated.