3.2 Hardware Tools

Multimeter

Multimeter is an electrical measurement tool.

It is used for measuring electrical properties:

  • Voltage [Volts]
  • Current [Ampere]
  • Resistance [Ohms]
  • Capacitance [Farad] (optional)

Oscilloscope

Oscilloscope (or scope) is an electronic test equipment, that is used to display signals in electronic circuits.

The oscilloscope has several probes. Each probe is connected to the circuit test point.

The scope then displays the signal voltage on the display.

Function generator

The function generator is an electronic test equipment that is used to generate voltage waveforms in order to conduct tests.

There are several types of waveforms:

  • Sine waveform.
  • Square waveform.
  • Triangle waveform.
  • Sawtooth waveform.

You can set the frequency and amplitude of the waveforms.

In Circuit Emulator (ICE)

The ICE is used as a hardware debugger in embedded software development. It is connected directly to the CPU and can perform real time debugging - stepping, breakpoints, tracing...

The hardware debugger is different from software debugger. When debugging, the debugger does not add software debugging commands, which add runtime overhead.

Logic analyzer

The logic analyzer is an electronic test instrument that is used to display digital waveforms of digital circuits. The logic analyzer resembles the oscilloscope, but it can show a whole bus data, so it is more powerful the scope, for analyzing digital circuits.

 

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