2012 BFY Abstract Detail Page
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| Abstract Title: |
W25 - FPGA Lab Exercise: Using Pulse Width Modulation to Study Analog-to-Digital Converter Properties While Building a Simply Music Player |
| Abstract: |
During the electronic component of the advanced lab course, students spend one week building a simple music player by programing an FPGA on a Digilent BASYS board. First, they use the FPGA as a digital-to-analog converter (DAC) using a simple Pulse Width Modulation (PWM) technique. This reconfigurable DAC is implemented with a just a few lines of Verilog code and is then used to explore DAC concepts such as resolution and conversion time. Second, an improved PWM technique using a Sigma-Delta algorithm is explored and its application as a voltage-to-frequency converter is discussed. Finally, 8-bit and 16-bit musical data is read from a flash memory and played through a speaker using the Sigma-Delta PWM technique. The workshop will cover the hardware and software used and PWM concepts. |
| Abstract Type: |
Workshop
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Workshop Documents |
| Workshop Document: |
Download the Workshop Document
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Author/Organizer Information |
| Primary Contact: |
Kurt Wick
Univ. of Minnesota
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