FPGA-based multiprocessor digital storage oscilloscope

A digital storage and multi-processor technology, applied in the direction of digital variable display, etc., can solve problems such as reducing product debugging efficiency and signal information loss, and achieve the effect of increasing the probability of capturing abnormal signals, improving performance, and reducing dead time.

Inactive Publication Date: 2016-03-30
史树元
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The processor cannot perform sampling during the period of data storage and processing, so this period of time is the so-called "dead time". Generally, the sampling tim

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  • FPGA-based multiprocessor digital storage oscilloscope

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Embodiment Construction

[0013] Such as figure 1 Shown is a structural block diagram of a digital storage oscilloscope based on FPGA multiprocessor of the present invention.

[0014] The figure includes control signal conditioning and triggering module, parallel waveform acquisition module, waveform co-processing module, core processor and display module; signal conditioning and triggering module includes amplifier, A / D sampling and triggering time base, parallel waveform acquisition module includes the first One-way sampling processor, the second-way sampling processor, FIFO connected to them respectively, and the signal output by FIFO is sent to the core processor; the display module includes waveform display memory, display processor, video memory, display, and waveform co-processing module Connected to the waveform display memory.

[0015] The core processor of the present invention moves the collected data to the internal data memory in a timely manner. During the sampling time, the core process...

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Abstract

The invention discloses an FPGA-based multiprocessor digital storage oscilloscope. The FPGA-based multiprocessor digital storage oscilloscope can effectively increase overall measuring efficiency, reduces ''dead time'', increases waveform capture rate, and accelerates debugging speed of faults in a circuit. The FPGA-based multiprocessor digital storage oscilloscope comprises a signal conditioning and triggering module, a parallel waveform acquisition module, a waveform co-processing module, a core processor and a display module. The structural features of the FPGA-based multiprocessor digital storage oscilloscope are that: the signal conditioning and triggering module comprises an amplifier, an A/D acquisition device and a triggered time base; the parallel waveform acquisition module comprises a first path sampling processor, a second path sampling processor and FIFOs connected with the processors, and sends signals output by the FIFOs to the core processor; and the display module comprises a waveform display memory, a display processor, a video memory and a display, and the waveform co-processing module is connected with the waveform display memory.

Description

technical field [0001] The invention is an instrument used in industries such as electronics and communication technology, and in particular relates to a digital storage oscilloscope based on an FPGA multiprocessor. Background technique [0002] With the rapid development of industries such as power electronics and communication technology, oscilloscopes have been widely used as an indispensable instrument in product design and debugging. As engineers have higher and higher requirements for oscilloscopes, digital storage oscilloscopes have gradually replaced analog oscilloscopes with their powerful analysis and calculation functions. Real-time sampling rate and real-time bandwidth are two important indicators for measuring digital storage oscilloscopes, but engineers often overlook another important indicator-waveform capture rate. [0003] The waveform capture rate is the ratio of the sampling time of the oscilloscope to the total measurement time. If the waveform capture...

Claims

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Application Information

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IPC IPC(8): G01R13/02
Inventor 史树元
Owner 史树元
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