Waveform generation and recovery system

Abstract

The invention discloses a waveform generation and recovery system. The system comprises an FPGA chip, a gate circuit, an analog switch and an AD chip. After a control command of an upper computer is received, a microprocessor can write code system waveform and clock waveform parameters in each group of signals into the FPGA chip through an SPI interface, and the FPGA chip directly generates the code system waveform and the clock waveform by counting crystal oscillator clocks; signals of the output code system waveform and clock waveform are connected to an inter-board connector J1, and the ADchip collects the output code system waveform and the clock waveform through the two analog switches connected in parallel; and the FPGA chip reads the data converted by the AD chip through the SPI interface and uploads the data to the upper computer. According to the waveform generation and recovery system, code system waveforms and matched clock waveforms can be generated, code values of code system signals can be visually judged according to the clock waveforms, meanwhile, the generated code system waveforms and clock waveforms can be collected through AD and transmitted back to an upper computer, and the waveforms are visually fed back at a PC terminal.

Description

technical field [0001] The invention relates to a waveform generation system, in particular to a waveform generation and mining system. Background technique [0002] Waveform generator is a signal source often used in electronic circuit analysis and design, and it is an indispensable experimental equipment in scientific research, teaching experiment and production practice. However, in the actual test environment and field, in addition to using some conventional signal waveforms (such as sine waves, triangle waves, and rectangular waves), sometimes some irregular signal waveforms are also used, such as analog circuits. Various transient waveforms, various clutter waves that appear in electronic equipment, etc. Arbitrary waveform generators are required in situations where ordinary waveform generators cannot meet the requirements. Arbitrary waveform generators are widely used in circuit experiment teaching and equipment testing, and can provide various standard signals and ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing arbitrary waveform sending system does not have a waveform recovery and playback function, and when generating the waveform, there is no matching clock waveform, and the code value of the waveform cannot be intuitively judged according to the waveform. The purpose is to provide a This waveform generation and recovery system can generate coded waveforms and matching clock waveforms, and can intuitively judge the code value of the coded signal according to the clock waveform, and can collect and return the generated coded waveforms and clock waveforms through AD To the host computer, the waveform is intuitively fed back on the PC

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