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MIXI Applications on the field of digital electronics

Traffic light system as one of the simplest sequential circuits
Components that affect the traffic light operation can be presented and studied, such as pedestrian button and sensor of vehicles. Task is to draw the state diagram of the traffic lights and the student can follow, step by step, the faulty operation. Faults might be generated.

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Car alarm system as an introduction to the state machine

The operation of the parts of a car alarm system such as remote-control functions, alarm functions, interrogations, errors and consequences may be understood and tested.

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The universal state machine

This application supports the demonstration and teaching of individual and general systems. The solution of measuring problems but first of all project work is supported by the inputs and outputs through the project socket.

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Gate-Array Logic IC

This application supports the demonstration and teaching of individual and general systems. The solution of measuring problems but first of all project work is supported by the inputs and outputs through the project socket.

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Application Specific IC

The most important common properties (input/output block, wire-matrix, configurable logic block) of different kinds of programmable devices may be measured. Students can exercise the features, differences, advantages and disadvantages of each PLD (Programmable Logic Device) and FPGA (Field Programmable Gate Array) according to the rule "the right explanation to the right problem".

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Digital integrated circuits

During the measurement any of the 16 widespread TTL circuits can be "paged" onto the socket of the mask.- The small scale ICs (SSI) as gates from 4x2 input NAND to 4x2 input EQU (XNOR) - The medium scale ICs (MSI) as BCD / 7 segment converter, 4+1 bit priority register, 9 bit parity generator, etc. If needed, the basic circuits can be interconnected or clocked by the cables supplied.

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Boundary Scanning I

In Boundary-scan I. the MIXI Learning System implements a small scale complicated digital circuit - containing SSI and MSI components - by using emulation method. The gates and information storage elements are concentrated into three integrated circuits. All three possess the possibility of boundary-scan test method and they together form a test loop according to the IEEE 1149.1 standard. The interconnection system of the circuit inputs and outputs is developed to contain all the practically important connection types (bus-like parallel wires, branches, logic feedback etc.) to demonstrate the many different methods of controlling the circuit operation. Fifteen documented error conditions can be produced by MIXI Learning System, including errors inside logic circuits and interconnection errors. The student has to identify the error formed by the equipment, using the experiences obtained from the test of the error-free circuit.

Please click here for a detailed introduction to the boundary scanning test method.


 Boundary Scanning II.

In Boundary-scan II. the program executed by an external computer forms a measuring environment, similar to industrial test conditions. The tasks suggested to accomplish demonstrate the effectiveness of the boundary-scan test method. The logic circuit implemented by the MIXI Learning System can be substituted by external circuits, giving the possibility to gain more practical knowledge. Boundary-scan II. enables the student to get hands on experience and to learn the methods, data structures and operation modes necessary for circuit tests, for collection and for evaluation of measurement results.

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Programmable D/A converter

Students can define the converter's transfer function by typing or with a graphic editor. They can define the input signal form for transmitting through the pre-defined path. It's possible to generate standard and/or graphical edited input signals.

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MISS Nanoprocessor

Introduction to the simple and complex special purpose processors. This application emulating a MISS (Minimal Instruction Set and Structure) processor gives the possibility of analyzing its function from a general point of view. The MISS-like processors are similar to RISC-processors in many aspects, e.g. in reduced instruction set etc. Students can get acquainted with processor architectures, advantages and disadvantages.

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Incremental transducer as an equipment for measuring displacement and rotation angle

The aim is to present the incremental signals and the electronics that evaluate these signals. The incremental signal is the 90 degree phase difference signal of two channels designed to measure displacement or turn.

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Digital measurement equipment

It enables the presentation of the functional units of the digital measurement equipment for measuring voltage, frequency and time. It can demonstrate the measurement errors forthcoming from incorrect settings, as well as the possibilities and the limits of sampling analogous signals. With the help of the accompanying computer program, the application can be used as a digital oscilloscope. The external connectable unit allows for easy connection of external signals.

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Digital Signal Processor

This application demonstrates the architecture and operation of digital filters by enabling us to prototype such filters in a straightforward way. It helps us understand the measurement of both analogous and digital filters. This application is also a good example of demonstrating the advantages and disadvantages of both digital and analogous worlds, as well as their differences. Using the external connectable equipment allows us to make the advantages of using digital filters even more plausible.

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Last modified by the Mikrovolt webmaster on Tue May 4 12:03:28 2004