EE30186 Integrated Engineering: Fan Control Assignment, v1.0 12.12.19

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GENERAL USAGE

• General System Overview

  - The program is intended to control the speed of a single, 3-pin fan, provided by the University
    of Bath. 
    
  - The program, written in C, is to be used in conjunction with an Altera DE1-SoC University 
    Program Board.
  

• Modes of Use

  - There are two modes of operation used to control the fan: open-loop control and closed-loop 
    control. These are outlined in more detail below.
  

• Software Outline

  - The program is split primarily into three sections: fan functions, display functions, and
    and miscellaneous functions.
    
  - The program spends almost all of its time continuously looping through the following cycle:
  
        - Set target speed
        - Measure fan speed
        - Calculate control
        - Set speed output
        - Update display
  

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SYSTEM REQUIREMENTS

• Hardware

   - Altera DE1-SoC University Program Board
   - 3-pin fan (with integrated tachometer)
   - Power supply
   - Extension board
   - 40 pin ribbon cable
  

• Software

  - C Debugging Environment able to build the .axf executable (preferred: Eclipse)
  - SoC EDS Command Line Version 18.1 or above
  - Windows OS (preferred: Version 10.0 or above)
  

• Files

  - CustomTypes.h
  - DisplayFunctions.c
  - DisplayFunctions.h
  - FanFunctions.c
  - FanFunctions.h
  - Makefile
  - MiscFunctions.c
  - MiscFunctions.h
  - main.c
  

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SETUP

• Check the De1 Soc Board has power and that the board is plugged in to the PC via a grey USB cable.
• A power supply of 12V should be connected to the red (+12V) and black (0V) sockets on the extension board.
• A white, 3-pin connector handles the tachometer signal from the 12V fan and supplies the fan with power.
• Launch Eclipse (or preferred application) from the SoC EDS Command Shell and open the workspace with all required files present.
• In the Eclipse development environment, build the solution and see that there are no build failures.
• Turn on the FPGA witht eh red button and load the code onto the board by clicking 'Connect' within the debugger.
• You should see the display on the Board change.

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USER MANUAL

• Switch 0 and switch 1 are used to change the mode of operation.

  - If switch 1 is raised, the system will be in temperature mode, which is not implemented yet.
  - With switch 1 low, you can toggle between closed loop and open loop control using switch 0.
  

• Key 0 is used to turn off the system.

• The grey rotary knob on the extension board is used to control the fan speed.

  - See the fan speed change in the display.
  

• If there is no user input for over 2 minutes, the displays will show random extracts from William Shakespeare's 'Romeo and Juliet'

• Have fun!