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Crowd Supply ScopeFun

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Crowd Supply ScopeFun Board is an affordable, open-source, and all-in-one instrumentation platform. This ScopeFun board provides tools such as oscilloscope, arbitrary waveform generator, spectrum analyzer, logic analyzer, and digital pattern generator. The board features Xilinx Artix-7 XC7A35T FPGA, 512MB DDR3 SDRAM memory, and Cypress FX3 USB 3.0 connectivity. This ScopeFun board is multi-platform for Windows, Linux, and Mac.

A Xilinx Artix-7 FPGA and a Cypress EZ-USB FX3 controller allow the board to interface with a PC while maintaining fast data rates. Samples are buffered using 512 Megabytes of DDR3 SDRAM. The main hardware specifications are:

  • Two analog oscilloscope channels (10-bit)
  • 500 million samples per second (MSPS) Real-Time Sampling rate (single channel) / 250 MSPS (dual channel)
  • 2.0 billion samples per second (GSPS) Equivalent-Time Sampling (ETS) rate
  • 128 million samples per channel of memory buffer
  • Two analog generators (200 MSPS, 12-bit)
  • 12 digital channels (used for the logic analyzer and the digital pattern generator)
  • USB 3.0 interface

The accompanying software runs on Windows, Linux, and Mac. It also provides a Server Mode that supports remote connections over an IP network. This allows the transfer of samples from nearly anywhere. It is also possible to interface with the hardware directly from Python scripts using the provided Python API.

The design is completely open source (software, firmware, and hardware) which facilitates the creation of highly customized test and measurement scenarios that are not possible with traditional equipment.

  • Oscilloscope:
    • Channels: Two
    • Analog bandwidth (-3 dB): 100 MHz
    • Real-time sampling rate: 250 MSPS dual channel / 500 MSPS single channel
    • Equivalent time sampling (ETS): 2.0 GSPS
    • Resolution: 10 bits
    • Min. sensitivity: 0.098 mV
    • Voltage ranges (with 1× probe): 10 mV to 2 V per division
    • Memory depth: 128 million samples per channel
  • Arbitrary Waveform Generator:
    • Channels: Two
    • Update rate: 200 MSPS
    • Output amplifier bandwidth: 30 MHz
    • Output impedance 50 Ohm
    • Resolution: 12 bits
    • Max. output voltage: +/- 2 V
    • Custom waveform length: 32,768 samples per channel
  • Spectrum Analyzer:
    • Channels: Two
    • Frequency range: DC to 125 MHz
  • Logic Analyzer:
    • Channels: 12*
    • Maximum toggle rate: 125 MHz
    • Maximum sampling rate: 250 MSPS
    • Memory depth: 128 million samples per channel
  • Digital Pattern Generator:
    • Channels: 12*
    • Maximum toggle rate: 125 MHz
    • Maximum update rate: 250 MSPS
    • Custom waveform length: 32,768 samples per channel
  • Primary Components:
    • FPGA: Xilinx Artix-7 XC7A35T
    • Memory: 512 MB DDR3 SDRAM
    • Connectivity: Cypress FX3 USB 3.0
  • Software:
    • Multi-platform: Windows, Linux, and Mac
    • Server mode: remotely connect to the ScopeFun over an IP network
    • Python API: read samples and control the ScopeFun directly from Python
    • Advanced signal rendering: 3D frame history and virtual persistence
  • The logic analyzer and digital pattern generator share the same 12 channels

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