Free Intellectual Properties

Autoranging Frequency Counter

• EDA platform : Max+PlusII
• design type : VHDL

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Description

• This design is a useful measurement instrument to have around the lab to measure unknown frequency sources.
• All of the required blocks are delf-contained "single-chip" design.
• The maximum frequency counting range is limited by the technology of the device.

Documentation

• The source code is extensively documented. So, please refer to them

Design Files

There a few design files:

VHDL Version 1 : Uses 7 segment LED display
freq_counter.zip	Contains all of the source code
suggested schematic	suggested schematic in PDF format
VHDL Version 2 : Uses integrated display
freq_counter2.zip	The source code
	Suggested schematic

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Picture of Prototype

• Lattice Implementation
• Altera Implementation