CN115550330A

CN115550330A - Method and system for remotely updating DSP (digital Signal processor) program based on network port

Info

Publication number: CN115550330A
Application number: CN202210932249.0A
Authority: CN
Inventors: 易博文; 梁德好; 王萌
Original assignee: Hunan Econavi Technology Co Ltd
Current assignee: Hunan Econavi Technology Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-30

Abstract

The invention discloses a method and a system for remotely updating a DSP program based on a network port, wherein the system comprises a remote computer and DSP equipment, the network port of the remote computer is connected with the network port of the DSP equipment, and the method specifically comprises the following steps: the remote computer establishes the connection between the browser and the DSP equipment, adds the selected bin file into the form and submits the form; and the DSP equipment acquires a bin file in the form and updates according to the content of the bin file. The invention realizes the remote update of the DSP program by utilizing the existing resources of the computer, does not need to design new software in the computer, and effectively saves labor cost and time cost.

Description

Method and system for remotely updating DSP (digital Signal processor) program based on network port

Technical Field

The present invention relates to remote program updating, and more particularly, to a method and system for remotely updating a DSP program based on an internet access.

Background

Products designed based on DSP chips often have an inherent disadvantage in terms of maintainability. Typically, DSP program updates are typically done using a dedicated emulator device, such as: the updating method is generally used for updating programs in a debugging stage, is difficult to be applied to maintenance sites and product application in large batch, cannot be used for remotely updating the programs, and is difficult to meet customer requirements.

In places with extremely harsh environment, such as mountaintops and the like. These places are difficult to update the DSP program at a close distance, and the connection line of the emulator is substantially short, so that the emulator update program is almost impossible to implement, very inconvenient, and time and effort are wasted.

Currently, there are two main methods for remote updating of DSP programs: one is FLASH procedure self-updating method, write the corresponding updated software on the computer end, transmit bin file (DSP procedure file) to DSP in the way of sub-packet through the network or serial port protocol; the other method is to write a PC program and then transmit the bin file to the DSP through a TCP protocol, and both methods need to design related software on a computer end, and increase labor cost and time cost.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides a method and a system for remotely updating a DSP program based on an internet access, which utilize the existing resources of a computer to realize the remote updating of the DSP program.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a method for remotely updating a DSP program based on an internet access is applied to a DSP program updating system, the DSP program updating system comprises a remote computer and a DSP device, the internet access of the remote computer is connected with the internet access of the DSP device, and the method specifically comprises the following steps:

the remote computer establishes the connection between the browser and the DSP equipment, adds the selected bin file into the form and submits the form;

and the DSP equipment acquires a bin file in the form and updates according to the content of the bin file.

Further, the step of establishing the connection between the browser and the DSP equipment by the remote computer comprises the following steps:

the remote computer sends an http request to the DSP equipment to be updated according to the network address of the DSP equipment to be updated, and waits for returning an html file;

the method comprises the steps that DSP equipment to be updated obtains an http request, and returns an html file to a source address of the http request;

and after receiving the html file returned by the DSP equipment to be updated, the remote computer displays corresponding content in the browser according to the html file.

Further, before the remote computer establishes the connection between the browser and the DSP device, the method further includes:

reserving an http protocol of the NDK development kit, recompiling the NDK, and writing an http protocol code into the DSP equipment by using the recompiled NDK development kit;

taking a remote computer as an http client, and taking the DSP equipment as an http server;

and if the http client cannot normally access the http server, re-associating the http protocol with the TCP/IP protocol until the http client normally accesses the http server, binding the http client and the http server, and starting the http server in the DSP equipment.

Further, the step of acquiring a bin file in the form by the DSP device and updating according to the content of the bin file includes:

the DSP equipment acquires a data frame, analyzes the data frame to obtain bin file content and data size, and stores the bin file content into a cache;

the DSP equipment erases a corresponding area of the flash according to the size of the data and writes the data in the cache into the area after the flash is erased;

and the DSP equipment compares the data in the flash and the cache, and if the data are the same, the power is cut off and the computer is restarted.

Further, after the DSP device compares the flash with the data in the cache, the method further includes: if the html files are the same, generating html files representing successful updating and sending the html files to the source address of the data frame, and if the html files are not the same, generating html files representing failed updating and sending the html files to the source address of the data frame;

and after receiving the new html file returned by the DSP equipment to be updated, the remote computer displays a corresponding updating result in the browser according to the new html file.

The invention also provides a DSP program updating system, which comprises a remote computer and a DSP device, wherein the network port of the remote computer is connected with the network port of the DSP device, and the DSP program updating system comprises:

the remote computer is used for establishing the connection between the browser and the DSP equipment, adding the selected bin file into a form and submitting the form;

and the DSP equipment is used for acquiring a bin file in the form and updating according to the content of the bin file.

Further, the remote computer includes:

the Http connection module is used for establishing Http connection between the browser and the DSP equipment and sending an Http request to the DSP equipment to be updated according to the network address of the DSP equipment to be updated;

the data loading module is used for adding the selected bin file into the form;

and the data sending module is used for submitting the data in the form.

Further, the DSP apparatus includes:

the data receiving module is used for acquiring the data frame, triggering the associated event, distributing the cache, and sending a receipt to the source address of the data frame after the data is received;

the data analysis module is used for analyzing the received data to obtain bin file content and data size, and then storing the bin file content into a cache;

and the data updating module is used for erasing a corresponding area of the flash according to the size of the data, writing the data in the cache into the area erased by the flash, reading the written data from the flash and comparing the data with the data backed up by the cache, if the data are the same, generating an html file representing successful updating and sending the html file to the source address of the data frame, and if the data are not the same, generating an html file representing failed updating and sending the html file to the source address of the data frame.

Compared with the prior art, the invention has the advantages that:

the invention transplants the network protocol in the DSP and uses the browser to send the program file to the DSP, thereby utilizing the existing resources of the computer, needing no new software designed in the computer and effectively saving the labor cost and the time cost.

Drawings

Fig. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a flow chart of a method according to an embodiment of the present invention.

Fig. 3 is a diagram illustrating a data frame format according to an embodiment of the invention.

Detailed Description

The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention.

This embodiment provides a DSP program updating system, as shown in fig. 1, including a remote computer (such as a notebook computer) and a DSP device, where a network port of the remote computer is connected to a network port of the DSP device through a network cable, the remote computer is used as an http client, and the DSP device is used as an http server, where:

the remote computer is configured to establish a browser connection with the DSP device, add the selected bin file to a form, and submit the form;

the DSP equipment is configured to obtain a bin file in a form and update the bin file according to the content of the bin file.

The DSP program updating system of the embodiment does not need to write updating software on the computer end, and utilizes the existing resources of the computer to realize the method for remotely updating the DSP program. In order to avoid writing related sending software in a computer, a web browser is used for replacing the related sending software, TCP/IP/HTTP protocol related codes are transplanted in the DSP equipment, an HTTP server is bound to a network port end, and the HTTP server is started in the DSP equipment.

In this embodiment, the remote computer includes:

the data loading module is used for adding the selected bin file into the form;

and the data sending module is used for submitting the data in the form, and the data in the form is sent to the DSP equipment through an htttp protocol (hypertext protocol).

In this embodiment, the DSP device includes:

As an http client, after receiving the html file, the remote computer displays the corresponding content in the web page of the browser.

The functional modules sequentially execute the following steps:

http connection is established by the Http connection module

In order to maintain a stable transmission channel, an http protocol code is transplanted in a DSP program, an http connection processing program is added, a DSP device address is input into a webpage browser of the remote computer, and when connection is successfully established, a relevant page is displayed in the webpage browser of the remote computer. The specific execution steps are as follows:

1. and finding an http protocol code and adding the http protocol code into the DSP system.

2. And binding the http client with the DSP http server, and starting the http server in the DSP, wherein the http server is used for responding to the request of the webpage client.

3. The remote computer sends an http request when entering a web address at the web site.

4. After receiving the result, the DSP feeds back a related result, which indicates that the webpage end successfully accesses the DSP.

The webpage end of the remote computer is blank at first, the DSP sends a written html file to the webpage end, and the webpage end applies relevant functions according to the written html file to display a dialog box for loading the file and a button for sending the file.

Data loading module selects file to load into form

According to the selection operation of an operator aiming at the dialog box, selecting a bin file to be loaded from a remote computer, adding the bin file to a form, and selecting a corresponding bin file in a web browser, wherein the path of the bin file in the computer does not contain Chinese.

The data sending module sends the file to the DSP equipment

The http protocol is a stable and reliable protocol and comprises a data retransmission mechanism, a corresponding program is added into the DSP equipment, a file sending button is triggered at a webpage end point to send the file, and if the file sending button is successful, a prompt is given in a webpage.

The data receiving module receives data sent by the browser

And storing the data into a cache according to a corresponding protocol format, and triggering a related event after the receiving module receives the data, and processing the received data in the data processing module.

The data analysis module analyzes the received file content

The http protocol is a stable and reliable protocol, so that the condition of data packet loss does not exist, and the size, the content, the data type and the like of the file are analyzed. And if the file is not empty, starting the data updating module of the next step, otherwise, ending.

The data updating module completes updating and sends receipt information

And erasing the corresponding area according to the size of the data, writing the buffered data into the flash, and comparing the read flash with the buffered data until the data comparison is successful, thereby indicating that the data is completely scanned. And when the DSP equipment is restarted after power failure, the new program can be automatically operated.

By this point, the remote update procedure has ended.

According to the above process, the present embodiment provides a method for remotely updating a DSP program based on an internet access, which is applied to the DSP program updating system of the present embodiment, as shown in fig. 2, and the method includes the following steps:

s1) the remote computer establishes a connection between the browser and the DSP device, adds the selected bin file to the form, and submits the form, specifically, in this embodiment, the remote computer establishes a connection between the browser and the DSP device including the following steps:

the DSP equipment to be updated acquires the http request and returns an html file to the source address of the http request;

after receiving the html file returned by the DSP equipment to be updated, the remote computer displays corresponding contents in a browser according to the html file, namely displays a dialog box for loading the file and a file sending button;

s2) the DSP equipment acquires the bin file in the form and the updating according to the content of the bin file specifically comprises the following steps:

the DSP device obtains a data frame, analyzes the data frame to obtain bin file content and data size, and stores the bin file content in a cache, as shown in fig. 3, the data frame of this embodiment includes:

frame head: each frame of initial data, the content is "head" as the header mark of the frame;

and (4) frame end: similar to the function of the frame header, each frame finishes data, and the content is 'end' as a frame end mark;

effective data is obtained between the frame head and the frame tail, and the effective data comprises the following steps:

file name: sending a file name;

data type: data frame formats, such as: 16 is carried in a system;

data: bin file content, actual valid data, specific content related to bin file content;

data size: the data frame does not contain the residual data size of the frame head and the frame tail;

the DSP equipment erases a corresponding area of the flash according to the size of the data, and writes the data in the cache into the area after the flash is erased;

the DSP equipment compares the flash with the data in the cache, if the flash is the same as the data in the cache, generates an html file indicating that the updating is successful, sends the html file to a source address of a data frame, and restarts the DSP equipment after power failure; if not, generating an html file indicating update failure and sending the html file to a source address of the data frame, and then restarting the power failure;

and S3) after receiving the new html file returned by the DSP equipment to be updated, the remote computer displays a corresponding updating result in the browser according to the new html file.

The method of the present embodiment further includes, before step S1):

in this embodiment, an NDK development kit is used, protocols such as tftp, sntp, telnet and the like included in an NDK application layer are removed, only an http protocol is reserved, then the NDK is recompiled, an http protocol code is written into the DSP device by using the recompiled NDK development kit, and the following steps are performed:

(1) Support of mating plug-ins requiring TI (XDCTools, SYS/BIOS, NDK)

(2) Configuring environment variables since compiling the protocol stack of the NDK requires using a gmake. Exe tool under the XDCTools support package, the path of the tool needs to be added to the environment variables of the system

(3) Compiling NDK requires the use of two files "NDK. Mak" and "NDK. Bld" under the path of the DNK installation (e.g., "C: \ ti \ NDK _2 \ 21 \\, 43"), the former being a make file and the latter being a configuration file, both files being under the directory of NDK _2 \, 21 \, 02 \, 43

(4) Command line operation, enter "cd C: \ ti \ ndk _2 \ 21 \\ \ 02 \" 43 "in Windows command line into directory of ndk, execute gmake-f ndk

Performing gmake-f ndk

Waiting for patience, the required library is generated under the corresponding directory, and the suffix name is as follows: ae66

Because the NDK development kit has more integrated contents and consumes more resources when used, the NDK development kit is optimized by cutting on the basis, and the problem of more resource consumption is mainly solved.

if the http client cannot normally access the http server, the http protocol is associated with the TCP/IP protocol again until the http client normally accesses the http server, the http client is bound with the http server, the http server is started in the DSP equipment, and whether the http client normally accesses the http server is judged, wherein the step of judging whether the http client normally accesses the http server comprises the following steps:

and the http client initiates an http request to the http server through the web browser, the http server processes the http request and then returns a result, the http client successfully accesses the http server, and otherwise, the http client fails to access the http server.

The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims

1. A method for remotely updating a DSP program based on an internet access is characterized by being applied to a DSP program updating system, wherein the DSP program updating system comprises a remote computer and a DSP device, the internet access of the remote computer is connected with the internet access of the DSP device, and the method specifically comprises the following steps:

2. The method for remotely updating a DSP program based on an internet access as claimed in claim 1, wherein the step of establishing the connection between the browser and the DSP device by the remote computer comprises the following steps:

3. The method for remotely updating the DSP program based on the internet access as claimed in claim 1, wherein before the remote computer establishes the connection between the browser and the DSP device, the method further comprises:

4. The method for remotely updating the DSP program based on the internet access of claim 1, wherein the step of the DSP device obtaining the bin file in the form and updating according to the content of the bin file specifically comprises:

5. The method of claim 4, wherein the comparing the flash with the data in the cache by the DSP device further comprises: if the html files are the same, generating html files representing successful updating and sending the html files to the source address of the data frame, and if the html files are not the same, generating html files representing failed updating and sending the html files to the source address of the data frame;

6. A DSP program updating system, comprising a remote computer and a DSP device, wherein a network port of the remote computer is connected to a network port of the DSP device, wherein:

the remote computer is used for establishing the connection between the browser and the DSP equipment, adding the selected bin file into the form and submitting the form;

7. The DSP program update system of claim 6, wherein said remote computer comprises:

the data loading module is used for adding the selected bin file into the form;

and the data sending module is used for submitting the data in the form.

8. The DSP program update system of claim 6, wherein said DSP apparatus comprises: