Multifunctional off-line downloader

Abstract

The invention discloses a multifunctional off-line downloader which comprises a first master control MCU, and the first master control MCU is internally provided with a first FLASH memory used for storing a self-updating program of the multifunctional off-line downloader, and peripheral equipment used for achieving off-line downloading of GPIO, UART, USB, SDIO, QSPI, SPI, FMC, DMA and TIM. The multifunctional off-line downloader can support a user to extend machine control for automatic burning, support a self-defined programming algorithm, support external input self-defined data for burning, support operation of user temporary codes during burning, assist in strengthening chip software encryption, networking space-time management and control of the multifunctional off-line downloader and the like. The multifunctional off-line downloader is configured in advance, and firmware or data burning can be directly carried out on a chip on an embedded electronic product without a PC (Personal Computer) and a development environment.

Description

technical field [0001] The invention relates to the technical field of embedded electronic products, in particular to a multifunctional offline downloader. Background technique [0002] Embedded electronic products usually need to use a development environment, debugger, etc. that run on the computer, such as a computer, IDE or a self-built development tool chain. During the development process, the debugger is connected to the computer to operate in the development environment, control The debugger burns the programmed firmware into the target chip on the embedded electronic product. After the development of embedded electronic products is completed, this method of burning firmware into the target chip during the development process continues to be used in the mass production of embedded electronic products, but this method is not suitable for mass production of embedded electronic products. Friendly, mainly for the following reasons: [0003] (1) It is necessary to build...

AI Technical Summary

Problems solved by technology

[0004] (2) It is difficult for production personnel to learn to use the development environment to operate;

[0005] (3) The firmware data needs to be transferred from the PC to the debugger first, and then burned to the target chip, which reduces the efficiency of burning the target chip and indirectly reduces the production efficiency

[0009] Nowadays, domestic labor costs are rising, and human resources are relatively tight. Some companies have transferred large-scale programming from manual programming to machine-automatic programming to reduce costs and improve efficiency. However, some common offline downloaders on the market do not It has an interface for secondary expansion for users;

[0010] With the increasingly powerful functions of today's embedded electronic products, their design is becoming more and more complex, and the testing process is correspondingly complicated. Some users hope that the offline downloader that participates in the production process of embedded electronic products can help streamline some production processes. Reduce the difficulty of production, but the offline downloader on the market only implements the steps of burning the user's firmware into the target chip, and cannot provide a good way for users to reduce production difficulty and improve production efficiency;

[0011] Nowadays, the shipments of all kinds of embedded electronic products are increasing day by day. Some criminals always try to obtain the firmware of embedded electronic products for piracy through various cracking methods. Users of offline downloaders need to go offline The downloader cooperates with itself to implement more software encryption functions to prevent the firmware from being cracked and run on other non-genuine products. However, the simple software encryption method provided by the current offline downloader cannot meet the needs of users and is easy to be disassembled. , decompilation and other means of reverse cracking

[0012] The functions that the offline downloader can provide are always limited and cannot meet the needs of all users, and different customers want to burn the custom data they need according to their own needs, but the offline downloaders on the market today only It can burn the data configured by the user, but cannot receive externally changed data in real time and burn it into the target chip when burning, which limits the user's performance;

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