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learn:courses:unit-7-lab7b:start [2017/03/30 19:06] – [8.1. Requirements] Marthalearn:courses:unit-7-lab7b:start [2022/10/04 11:38] (current) – external edit 127.0.0.1
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 ====== Lab 7b: Digital Spectrum Analyzer ====== ====== Lab 7b: Digital Spectrum Analyzer ======
 +[[{}/learn/courses/unit-7/start|Back to Unit 7]]
 +[[{}/learn/courses/unit-7-lab7a/start|Back to Lab 7a]]
 +
  
 === Download This Document === === Download This Document ===
-  * {{ :learn:courses:unit-7-lab7b:lab_7b.pdf |Lab 7b PDF}}+{{ :learn:courses:unit-7-lab7b:lab_7b.pdf |Lab 7b PDF}}
  
  
 ===== 1. Objectives ===== ===== 1. Objectives =====
-  * Read analog data from the Basys MX3 microphone. +  - Read analog data from the Basys MX3 microphone. 
-  * Process a block of analog data with a Discrete Fourier Transform algorithm. +  - Process a block of analog data with a Discrete Fourier Transform algorithm. 
-  * Use the Basys MX3 Character LCD to display graphical data.+  - Use the Basys MX3 Character LCD to display graphical data.
  
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 ===== 2. Basic Knowledge ===== ===== 2. Basic Knowledge =====
-  * [[http://en.wikibooks.org/wiki/C_Programming/Compiling|Knowledge of C or C++ programming]] +  - [[http://en.wikibooks.org/wiki/C_Programming/Compiling|Knowledge of C or C++ programming]] 
-  * [[http://ww1.microchip.com/downloads/en/DeviceDoc/52027B.pdf|Working knowledge of MPLAB® X IDE]] +  - [[http://ww1.microchip.com/downloads/en/DeviceDoc/52027B.pdf|Working knowledge of MPLAB® X IDE]] 
-  * How to display text on a character LCD +  - How to display text on a character LCD 
-  * [[http://en.wikipedia.org/wiki/Finite_impulse_response|Understanding of Discrete Fourier Transform principles]]+  - [[http://en.wikipedia.org/wiki/Finite_impulse_response|Understanding of Discrete Fourier Transform principles]]
  
  
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 ===== 3. Equipment List ===== ===== 3. Equipment List =====
 ==== 3.1. Hardware ==== ==== 3.1. Hardware ====
-  * [[http://store.digilentinc.com/basys-mx3-pic32mx-trainer-board-recommended-for-embedded-systems-courses/|Basys MX3 trainer board]] +  - [[https://digilent.com/shop/basys-mx3-pic32mx-trainer-board-for-embedded-systems-courses/|Basys MX3 trainer board]] 
-  * Workstation computer running Windows 10 or higher, MAC OS, or Linux  +  - Workstation computer running Windows 10 or higher, MAC OS, or Linux  
-  * 2 [[http://store.digilentinc.com/usb-a-to-micro-b-cable/|Standard USB A to micro-B cables]]+  - 2 [[https://digilent.com/shop/usb-a-to-micro-b-cable/|Standard USB A to micro-B cables]]
  
 In addition, we suggest the following instruments: In addition, we suggest the following instruments:
-  * [[http://store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply/|Analog Discovery 2]] +  - [[https://digilent.com/shop/analog-discovery-2-100ms-s-usb-oscilloscope-logic-analyzer-and-variable-power-supply/|Analog Discovery 2]] 
  
  
 ==== 3.2. Software ==== ==== 3.2. Software ====
 The following programs must be installed on your development work station: The following programs must be installed on your development work station:
-  * [[http://www.microchip.com/mplab/mplab-x-ide|Microchip MPLAB X® v3.35 or higher]] +  - [[http://www.microchip.com/mplab/mplab-x-ide|Microchip MPLAB X® v3.35 or higher]] 
-  * [[http://www.microchip.com/SWLibraryWeb/product.aspx?product=PIC32%20Peripheral%20Library|PLIB Peripheral Library]] +  - [[http://www.microchip.com/SWLibraryWeb/product.aspx?product=PIC32%20Peripheral%20Library|PLIB Peripheral Library]] 
-  * [[http://www.microchip.com/xcdemo/xcpluspromo.aspx|XC32 Cross Compiler]] +  - [[http://www.microchip.com/xcdemo/xcpluspromo.aspx|XC32 Cross Compiler]] 
-  * [[http://store.digilentinc.com/waveforms-2015-download-only/|WaveForms 2015]] (if using the Analog Discovery 2)+  - [[https://digilent.com/shop/software/digilent-waveforms/|WaveForms]] (if using the Analog Discovery 2)
  
  
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 ===== 4. Project Takeaways ===== ===== 4. Project Takeaways =====
-  * How to implement a fast Fourier transform in C using a PIC32MX microprocessor. +  - How to implement a fast Fourier transform in C using a PIC32MX microprocessor. 
-  * How to use the PIC32 processor to analyze a signal in real time. +  - How to use the PIC32 processor to analyze a signal in real time. 
-  * How to display the spectral energy of a real-time signal. +  - How to display the spectral energy of a real-time signal. 
-  * How to generate a graphical display on a character LCD.+  - How to generate a graphical display on a character LCD.
  
  
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   - In reality, what is the maximum rate that the LCD and 7-Segment display can be updated?   - In reality, what is the maximum rate that the LCD and 7-Segment display can be updated?
   - Why would one want to update the displays at a rate slower than the theoretical maximum speed?   - Why would one want to update the displays at a rate slower than the theoretical maximum speed?
-  - How many times will a buffer be filled during the time needed to display the results for computing the FFT on one block of data? What are the potential problems here? +  - How many times will a buffer be filled during the time needed to display the results for computing the FFT of one block of data? What are the potential problems here? 
   - How can your answer to question 5 be resolved?   - How can your answer to question 5 be resolved?
  
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 +[[{}/learn/courses/unit-7/start|Back to Unit 7]]
 +[[{}/learn/courses/unit-7-lab7a/start|Back to Lab 7a]]
 +[[{}/learn/courses/start|Back to Course List]]