SPI waveform processing method and device

Abstract

The invention discloses an SPI waveform processing method and an SPI waveform processing device, which are used for realizing automatic analysis of an SPI waveform so as to save labor cost. The method comprises the steps: converting a waveform image, captured by an oscilloscope, of a tested SPI signal into target waveform data, and expressing the target waveform data in a binary form; judging whether chip selection signal data and clock signal data in the target waveform data are valid or not; when the chip selection signal data and the clock signal data are valid, obtaining communication signal data matched with a clock signal in the target waveform data and first preset configuration, wherein the first preset configuration comprises a preset sampling edge type and a sampling period number; and analyzing the communication signal data into a preset format. By adopting the scheme provided by the invention, the automatic analysis of the SPI signal can be realized, and the labor cost is saved.

Description

technical field [0001] The present application relates to the communication field, in particular to a method and device for processing SPI waveforms. Background technique [0002] SPI (Serial Peripheral Interface, Serial Peripheral Interface) communication is widely used in the current chip environment. For developers, during the development process, read and analyze waveforms to obtain corresponding data, and then use these data to analyze SPI communication. The process is very meaningful. [0003] The current SPI waveform collected by the oscilloscope consists of 4 waveforms, namely CS, SDI, SDO, and CLK. If you want to read data, you must combine it with 4 waveforms for comprehensive analysis. The SPI transmission rate can reach several Mbps. The analysis process is a very boring, repetitive, but necessary process. However, most oscilloscopes do not have the function of analyzing SPI signals, which requires staff to manually analyze the images of the measured signals ou...

AI Technical Summary

Problems solved by technology

If you want to read data, you must combine 4 waveforms for comprehensive analysis. The SPI transmission rate can reach several Mbps. The analysis process is a very boring, repetitive, but necessary process.

However, most oscilloscopes do not have the function of analyzing SPI signals, and the staff need to combine the image of the signal under test output by the oscilloscope for manual analysis, which is time-consuming and labor-intensive.

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