Data capture and state analysis method used for low-power Bluetooth chip

Abstract

The invention discloses a data capture and state analysis method used for a low-power Bluetooth chip. The method innovatively realizes real-time capture of information flow in an interactive process of a protocol stack host (a host protocol layer) and a controller (a controller protocol layer) of the low-power Bluetooth chip. Through a specific instruction, the captured information flow is storedin a nonvolatile memory. The information flow is stored in real time in the using process of the Bluetooth chip, so that once the low-power Bluetooth chip is abnormal in work, abnormal information flow and working state can be read out from the nonvolatile memory conveniently by using the method, and a large amount of real and accurate information is provided for design and test personnel to perform analysis. The problem that expensive third-party hardware must be used for performing information flow acquisition and analysis in an existing Bluetooth test device is innovatively solved, so thatthe method has the characteristics of high analysis accuracy, high efficiency and low cost at the same time.

Description

technical field [0001] The invention relates to the field of low-power bluetooth chips, in particular to a method for data capture and state analysis of low-power bluetooth chips. Background technique [0002] With the advent of the information age, low-power Bluetooth chips are more and more widely used in people's daily life. However, due to the huge market demand and rich application scenarios, domestic investment in research and development of low-power Bluetooth chips is very large. But at the same time, compared with developed countries, the research and development of low-power bluetooth in China started relatively late, and the accumulation of various technologies is insufficient. Therefore, domestic low-power bluetooth chips still have a lot of stability and compatibility in complex application scenarios. A place to be perfected. As a result, the low-power Bluetooth chip is prone to problems during on-site testing and use, and debugging is often required. However...

AI Technical Summary

Problems solved by technology

But at the same time, compared with developed countries, the research and development of low-power bluetooth in China started relatively late, and the accumulation of various technologies is insufficient. Therefore, domestic low-power bluetooth chips still have a lot of stability and compatibility in complex application scenarios. place to be perfected

As a result, low-power Bluetooth chips are prone to problems during on-site testing and use, and often need to be debugged

However, the existing low-power Bluetooth chip test equipment has a narrow range of options, and most of them rely on foreign manufacturers to use expensive third-party hardware devices to monitor and capture the signals that the low-power Bluetooth chip interacts with other Bluetooth devices. The threshold for use is high. ; And when the third-party device captures data, it is also susceptible to interference from other 2.4Ghz (WIFI wireless network, etc.) signals. The interaction information with the controller still cannot be obtained and analyzed

In this regard, on-site test technicians often lack the means to directly acquire and analyze the working status of the low-power Bluetooth chip, which greatly increases the difficulty of debugging

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