Multifunctional embedded development tool with USB interface

Abstract

The invention discloses a multifunctional embedded development tool with a USB interface and belongs to the technical field of embedded development. The multifunctional embedded development tool consists of a circuit board, the USB interface, a USB-HUB circuit, a USB to serial port circuit, a debugging and simulation circuit, a logical analysis circuit, JTAG interface, an SWD interface, a serial port interface and a logical test interface. The multifunctional embedded development tool only needs the USB interface to be connected with a computer to achieve the functions of debugging and simulation, serial port test, logical analytic test, code downloading and the like together with software of the computer, so that functional demands for debugging and simulation, testing, maintenance and the like of development of embedded software in various stages, cross use of multiple tools is not needed, accordingly, the working intensity of embedded software development testing and maintenance is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a multifunctional embedded development tool, in particular to a multifunctional embedded development tool with a USB interface, which belongs to the technical field of embedded development. Background technique [0002] A variety of development tools are needed in the process of embedded software development and testing, mainly including debugging simulation tools for debugging simulation, including serial interfaces for testing, logic analyzers for digital signal test analysis, and for A download tool for downloading code, etc. [0003] There are currently two debug simulation interfaces for debugging simulation tools: JTAG interface and SWD interface. The JTAG interface is an international standard test protocol, compatible with IEEE 1149.1, and mainly used for chip internal testing. Now most advanced devices support the JTAG protocol, such as DSP, FPGA, ARM devices, etc., the standard JTAG interface includes 4 lines such as...

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Problems solved by technology

[0006] A tool for debugging simulation and code download in the Chinese patent application number 201410573668.5 discloses a tool that integrates debugging simulation and serial port download, but 1) the tool itself does not have the function of debugging simulation, and it needs to be connected with Jlink to realize it Debugging simulation; 2) This tool does not have logic analysis function, and cannot analyze the digital signal output by embedded software test, it can only meet the usage requirements of embedded software debugging simulation and code download, but cannot meet the usage requirements of testing

[0007] At present, there is no tool that can integrate the above-mentioned serial ports, SWD interfaces, JTAG interfaces, and logic analysis and test interfaces to meet the needs of embedded software in various stages of development, debugging, testing, and maintenance.

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