System and method for realizing software rapid serial port upgrade in gnss receiver
A serial port upgrade and receiver technology, applied in the direction of program loading/starting, program control devices, etc., can solve the problems of poor versatility and restrict the replacement of product processors, and achieve the effect of reliable data and convenient upgrade.
Active Publication Date: 2017-05-24
SHANGHAI HUACE NAVIGATION TECH
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Problems solved by technology
[0003] For the general serial port upgrade method, the dependence on the chip is relatively large, and the chip needs to support this upgrade method, that is, there is a corresponding firmware support inside the chip, which will limit the replacement of the product processor
Other serial port upgrade methods mainly depend on the protocol, are not universal, and are also related to hardware circuits. For example, auxiliary functions such as buttons and jumpers are needed to complete product upgrades.
Method used
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[0031] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.
[0032] Based on the purpose of creating the invention, we realize it through the following technical solutions: we divide the Flash memory of the processor into two parts, one part is used for programming the Boot program, and the other part is used for storing application programs. The program upgrade process is implemented in the Boot program. The schematic diagram of the entire storage space division is as follows: figure 2 shown.
[0033] Such as figure 1 Shown, the system that realizes software fast serial port upgrade of the present invention comprises:
[0034] The upgrade device is connected to the GNSS receiver through the serial port, and the upgrade device is used to provide the download source for the program upgrade of the GNSS receiver. The upgrade device can use a computer;
[0035] The ...
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The invention relates to a system for achieving rapid software serial port upgrading in a GNSS receiver. The system comprises an upgrading device and a Flash storage, wherein the upgrading device is connected with the GNSS receiver through a serial port and used for providing a downloading source for program upgrading of the GNSS receiver, the Flash storage is arranged in the GNSS receiver and connected with a processor of the GNSS receiver, and the Flash storage comprises a Boot program partition and an application program partition. The invention further relates to a method for achieving rapid software serial port upgrading in the GNSS receiver. According to the system and method for achieving rapid software serial port upgrading in the GNSS receiver, by means of the structure, the aim that software upgrading is independent of hardware can be achieved, serial port upgrading can be achieved only by shutting down and starting up the GNSS receiver again, the trouble caused by disassembly of the GNSS receiver is avoided, code data with the size of 200k can be upgraded within 5s, serial port upgrading is rapid and reliable, and the system and method are suitable for large-scale popularization and application.
Description
technical field [0001] The invention relates to the field of serial port upgrading of processors, in particular to the field of serial port upgrading of GNSS processors, and specifically refers to a system and method for realizing fast software serial port upgrading in a GNSS receiver. Background technique [0002] There are many ways to upgrade the serial port, and the common ones are ISP (Internet Service Provider, Internet Service Provider), ICP (Internet Content Provider, Internet Content Provider) and IAP (Internet Access Provider, Internet Access Provider). Design a set of own serial port upgrade protocol for your own products. [0003] The general serial port upgrade method is more dependent on the chip, and the chip needs to support this upgrade method, that is, there is a corresponding firmware support inside the chip, which will limit the replacement of the product processor. Other serial port upgrade methods mainly depend on the protocol, are not universal, and a...
Claims
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IPC IPC(8): G06F9/445
Inventor 李广张志桂王杰俊谢华忠张晓飞刘根芳
Owner SHANGHAI HUACE NAVIGATION TECH