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Mid-Term Presentation October 5, 2007. Charlie Mraz EE Team Leader Analog Design PCB Layout. Allen Joiner EE Microprocessor Design Power Supply Purchasing/Finance. Scott Wilson CPE FPGA Design Website Design. James Sakalaukus CPE PC Software System Integration. Team Members. Overview.

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mid term presentation october 5 2007
Mid-Term Presentation

October 5, 2007

team members

Charlie MrazEETeam LeaderAnalog DesignPCB Layout

Allen JoinerEEMicroprocessor DesignPower SupplyPurchasing/Finance

Scott WilsonCPEFPGA DesignWebsite Design

James SakalaukusCPEPC SoftwareSystem Integration

Team Members
overview
Overview
  • Introduction
    • Problem
    • Solution
  • Design Constraints
    • Technical
    • Practical
  • Design Approach
    • System
    • FPGA
    • Microprocessor
    • PC Software
  • Project Progress
problem
Problem
  • Test Equipment is Expensive
    • Oscilloscopes and Function Generators are Chained to University Lab Benches
    • Opportunity to Learn, Experiment, or Work is Limited to School or Work Hours
    • Students, Hobbyists, and Small Businesses Cannot Afford to Purchase Their Own Equipment
solution
Solution
  • PC-Based Oscilloscope / Function Generator
    • External Device can be Small and Inexpensive
    • Leverages Computing Resources of any PC with a USB Port
    • Graphical User Interface
    • Standard Scope Probe Inputs and Function Generator Output
    • Data can be Saved and Processed “Off-Line” by Excel, MATLAB, or other Analysis Tools
constraints
Constraints
  • Technical Constraints
    • Input and Output Sampled at 60 MSa/s
    • 30 MHz Analog Bandwidth on Inputs/Outputs
    • 20 Volt Peak to Peak Input with a 10x Probe
    • 10 Volt Peak to Peak Output to a 50Ω Load
constraints8
Constraints
  • Practical Constraints
    • Cost
      • Manufactured for Less than $150
      • Sold for Around $200
      • Comparable products have an MSRP of up to $515
    • Ease of Assembly
      • No Leadless Packages like BGA, CSP, etc.
      • Components on Top of Board Only
system design
System Design
  • Several Possibilities
    • Microprocessor with Built-in ADC
      • Inexpensive
      • Slow
      • Trigger can be Implemented in Firmware
    • Microprocessor, High Speed ADC, and Dual Port FIFO
      • Most Expensive
      • Fast
      • Requires Separate Trigger Logic
    • Microprocessor, High Speed ADC, and FPGA
      • Moderate Cost
      • Fast
      • Trigger can be Implemented in Firmware
fpga design
FPGA Design
  • Two Main Options
    • Altera Cyclone
      • More Equivalent Gates
      • Less RAM
      • Slower
      • More Expensive
    • Xilinx Spartan 3E
      • Fewer Equivalent Gates
      • More RAM
      • Faster
      • Less Expensive
microprocessor design
Microprocessor Design
  • Two Main Options
    • Cypress CY7C63513C
      • Less Expensive
      • Less RAM
      • No Hardware SPI Support
    • Microchip PIC18LF4550
      • More Expensive
      • More RAM
      • Hardware SPI Support
software design
Software Design
  • Two Main Options
    • Custom Application
      • Can Choose any Language for Implementation
      • Start Fresh
      • Significant Time Spent on Development
    • Open Instrumentation Project (OIP)
      • Tcl/Tk
      • Work Within Predefined Framework
      • Reduced Development Time
references
References

[1] MetaChip Pty. Ltd., “Bitscope Model 310,” Bitscope = PC Oscilloscopes and Analyzers, 2007. [Online]. Available: http://www.bitscope.com/product/BS310/. [Accessed Sept. 26, 2007].

[2] EasySync Ltd., “DS1M12 ‘Stingray:’ USB oscilloscope and waveform generator,” USB Instruments, 2007. [Online]. Available: http://www.usb-instruments.com/documents/small_stingray.pdf. [Accessed Spet. 26, 2007].

[3] Altera, “Cyclone FPGA Family Datasheet,” Literature: Cyclone devices, 2007. [Online]. Available: http://www.altera.com/literature/hb/cyc/cyc_c5v1.pdf. [Accessed Sept. 26, 2007].

[4] Xilinx, “Spartan-3E FPGA Family Data Sheet,” Spartan-3E Data Sheets, 2007. [Online]. Available: http://direct.xilinx.com/bvdocs/publications/ds312.pdf. [Accessed Sept. 26, 2007].

[5] Cypress Semiconductor, “Low-Speed High I/O, 1.5Mbps USB Controller,” CY7C63513C, 2007. [Online]. Available: http://download.cypress.com.edgesuite.net/design_resources/datasheets/contents/cy7c63513c_8.pdf. [Accessed Sept. 26, 2007].

[6] Microchip, “PIC18F2455/2550/4455/4550 Data Sheet,” PIC18F4550, 2007. [Online]. Available: http://ww1.microchip.com/downloads/en/DeviceDoc/39632D.pdf. [Accessed Sept. 26, 2007].