CN206819347U - A kind of encryption serial ports Switching Module based on FPGA - Google Patents
A kind of encryption serial ports Switching Module based on FPGA Download PDFInfo
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- CN206819347U CN206819347U CN201720772434.2U CN201720772434U CN206819347U CN 206819347 U CN206819347 U CN 206819347U CN 201720772434 U CN201720772434 U CN 201720772434U CN 206819347 U CN206819347 U CN 206819347U
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Abstract
The utility model discloses a kind of encryption serial ports Switching Module based on FPGA, belong to the interface of the communications field, the technical problems to be solved in the utility model how to exchange to realize serial ports using FPGA and the mode of operation of each serial ports can be configured, the technical scheme used for：Its structure includes on-site programmable gate array FPGA, it is characterized in that, include Switching Module, serial ports configuration module, I2C modules, memory module, N number of encrypting module, N number of serial ports transceiver module and N number of electrical level transferring chip in the on-site programmable gate array FPGA, Switching Module is electrically connected serial ports configuration module, I2C modules and encrypting module, serial ports configuration module electrically connects electrical level transferring chip, I2C modules electrical connection memory module；Encrypting module electrically connects serial ports transceiver module, serial ports transceiver module electrical connection electrical level transferring chip.
Description
Technical field
It the utility model is related to the interface of the communications field, specifically a kind of encryption serial ports interchange mode based on FPGA
Block.
Background technology
At present, it is and the general microcontroller serial port limited amount by chip microcontroller that serial ports, which exchanges, to realize more ways
Multiple single-chip microcomputers are needed according to exchanging, it is larger so to take pcb board area when design.
FPGA（Field-Programmable Gate Array）, i.e. field programmable gate array, it be PAL,
The product further developed on the basis of the programming devices such as GAL, CPLD.It is as application specific integrated circuit（ASIC）In field
A kind of semi-custom circuit and occur, both solved the deficiency of custom circuit, overcome original programming device gate circuit again
The shortcomings that number is limited.How to exchange to realize serial ports using FPGA and the mode of operation of each serial ports can be configured, can be according to FPGA
Model number of pin how much realize multi-channel serial port data exchange, how much FPGA models are selected with serial ports quantity.
Patent No. CN104866452A patent document discloses a kind of Multi-serial port based on FPGA and TL16C554A
Extended method, the hardware of use include FPGA, n TL16C554A chips, n serial ports level transformating chip, FPGA and
DSP is connected by data/address bus, address bus with controlling bus, asynchronous memories of the FPGA as DSP processors, complete
Translate code selectively into the communication with DSP, and the Timing driver of TL16C554A chips, piece and interrupt decoding.TL16C554A cores
Piece is the administrative unit of asynchronous serial communication, including 4 serial communication administrative units can convert parallel data into 4
The Serial output on road, it is possible to achieve the transmitting-receiving management of 4 serial ports, can realize simultaneously and 4n device talk.But the skill
Art scheme can not solve the problems, such as to be realized serial ports exchange using FPGA and can be configured the mode of operation of each serial ports.
The content of the invention
Technical assignment of the present utility model is the deficiency for more than, there is provided a kind of encryption serial ports interchange mode based on FPGA
Block, to solve the problems, such as how to exchange to realize serial ports using FPGA and the mode of operation of each serial ports can be configured.
Technical assignment of the present utility model realizes in the following manner, a kind of encryption serial ports interchange mode based on FPGA
Block, including on-site programmable gate array FPGA, the on-site programmable gate array FPGA is interior to include Switching Module, serial ports configuration mould
Block, I2C modules, memory module, N number of encrypting module, N number of serial ports transceiver module and N number of electrical level transferring chip, Switching Module difference
Electrically connect serial ports configuration module, I2C modules and encrypting module, serial ports configuration module electrical connection electrical level transferring chip, I2C modules electricity
Connect memory module；Encrypting module electrically connects serial ports transceiver module, serial ports transceiver module electrical connection electrical level transferring chip；
Wherein, serial ports configuration module is used to be operated pattern configurations to serial ports transceiver module；
Memory module is used for the configuration parameter for storing serial ports configuration module configuration serial ports transceiver module；
Switching Module is used for the exchange for realizing data between each serial ports transceiver module, carry out according to demand different serial ports it
Between path identification and data exchange；
Encrypting module is used to data be encrypted.
Preferably, the serial ports configuration module uses special RS232 serial ports configuration module.
Preferably, the memory module uses EEPROM configuration parameter memory modules.
Preferably, the electrical level transferring chip uses RS232 electrical level transferring chips.
Set preferably, the encrypting module, serial ports transceiver module and electrical level transferring chip correspond.
Preferably, the encrypting module and serial ports transceiver module are provided with four.
Encryption serial ports Switching Module of the present utility model based on FPGA has advantages below：
（One）, the utility model utilize FPGA reconfigurability and programmability, at the scene in programmable gate array FPGA
N number of serial ports transceiver module is built in portion, the parameter of serial ports transceiver module is configured by specialized configuration serial port module, by the parameter of configuration
Exist in EEPROM configuration parameter memory modules, serial ports transceiver module can realize that N number of serial data exchanges, can selectively certainly
Row addition serial ports identification frame head, can also one master and multiple slaves formula broadcast data, encrypting module entered by AES to serial data
Row encryption；
（Two）, the utility model disclosure satisfy that need with secrecy serial data exchange application environment in, Ke Yiying
The data exchange application scenarios of serial interface are carried used in computer realm, cloud terminal, internet-of-things terminal, multimedia terminal etc.；
（Three）, the utility model be applied to information control center, call center, security/financial transaction system, bank data
In all environment that data exchange is carried out using serial interface such as center, industrial control condition, teaching environment, test center.
Therefore the utility model has the characteristics that reasonable in design, simple in construction, easy to use, one-object-many-purposes, thus, have very
Good popularizing value.
Brief description of the drawings
The utility model is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the structured flowchart for encrypting serial ports Switching Module based on FPGA.
Embodiment
The encryption serial ports Switching Module of the present utility model based on FPGA is made with reference to Figure of description and specific embodiment
It is explained in detail below.
Embodiment 1：
As shown in Figure 1, the encryption serial ports Switching Module of the present utility model based on FPGA, its structure can including scene
Gate array FPGA is programmed, includes Switching Module, special RS232 serial ports configuration module, I2C moulds in on-site programmable gate array FPGA
Block, EEPROM configuration parameters memory module, N number of encrypting module, N number of serial ports transceiver module and N number of electrical level transferring chip, interchange mode
Block is electrically connected special RS232 serial ports configuration module, I2C modules and encrypting module, and special RS232 serial ports configuration module is electrically connected
Connect electrical level transferring chip, I2C modules electrical connection EEPROM configuration parameter memory modules；Encrypting module electrical connection serial ports transmitting-receiving mould
Block, serial ports transceiver module electrical connection electrical level transferring chip；Wherein, special RS232 serial ports configuration module is used to receive and dispatch mould to serial ports
Block is operated pattern configurations；EEPROM configuration parameters memory module is used to store serial ports configuration module configuration serial ports transceiver module
Configuration parameter；Switching Module is used for the exchange for realizing data between each serial ports transceiver module, carries out different strings according to demand
Path identification and data exchange between mouthful；Encrypting module is used to data be encrypted.Electrical level transferring chip uses RS232 level
Conversion chip.Encrypting module, serial ports transceiver module and electrical level transferring chip, which correspond, to be set.Encrypting module and serial ports transmitting-receiving mould
Block has four.Serial ports transceiver module exports including serial data（TX）Inputted with serial data（RX）, i.e. serial ports TX and serial ports
RX。
Embodiment 2：
The present embodiment first passes through the mode of operation and serial ports transceiver module of specialized configuration serial port module configuration Switching Module
Mode of operation, mode of operation have two kinds：（1）, full broadcast mode；（2）Private access pattern；
Then, N platforms are looked for carry the PC main frames of serial interface:（1）, under full broadcast mode：One main PC sends serial ports number
According to the PC of other serial ports connections all receives the data that main PC is sent；（2）, private access pattern：The letter that each serial ports is sent
First increase a frame head in breath, as the handshake of path selection, Switching Module path according to corresponding to selecting frame head.
Finally, after configuring good berth pattern on N platform PCs, according to the parameter of configuration, communicated between any several,
Communication process is run according to the Switching Module program configured.
By embodiment above, the those skilled in the art can readily realize the utility model.But
It is it should be appreciated that the utility model is not limited to two kinds of above-mentioned embodiments.On the basis of disclosed embodiment,
The those skilled in the art can be combined different technical characteristics, so as to realize different technical schemes.
It is the known technology of those skilled in the art in addition to the technical characteristic described in specification.
Claims (6)
1. a kind of encryption serial ports Switching Module based on FPGA, including on-site programmable gate array FPGA, it is characterised in that described
Include in on-site programmable gate array FPGA Switching Module, serial ports configuration module, I2C modules, memory module, N number of encrypting module,
N number of serial ports transceiver module and N number of electrical level transferring chip, Switching Module are electrically connected serial ports configuration module, I2C modules and encryption
Module, serial ports configuration module electrical connection electrical level transferring chip, I2C modules electrical connection memory module；Encrypting module electrically connects serial ports
Transceiver module, serial ports transceiver module electrical connection electrical level transferring chip；
Wherein, serial ports configuration module is used to be operated pattern configurations to serial ports transceiver module；
Memory module is used for the configuration parameter for storing serial ports configuration module configuration serial ports transceiver module；
Switching Module is used for the exchange for realizing data between each serial ports transceiver module, carries out leading between different serial ports according to demand
Road identifies and data exchange；
Encrypting module is used to data be encrypted.
2. the encryption serial ports Switching Module according to claim 1 based on FPGA, it is characterised in that the serial ports configures mould
Block uses special RS232 serial ports configuration module.
3. the encryption serial ports Switching Module according to claim 1 based on FPGA, it is characterised in that the memory module is adopted
With EEPROM configuration parameter memory modules.
4. the encryption serial ports Switching Module according to claim 1 based on FPGA, it is characterised in that the level conversion core
Piece uses RS232 electrical level transferring chips.
5. the encryption serial ports Switching Module according to claim 1 based on FPGA, it is characterised in that the encrypting module,
Serial ports transceiver module and electrical level transferring chip, which correspond, to be set.
6. the encryption serial ports Switching Module according to claim 1 based on FPGA, it is characterised in that the encrypting module and
Serial ports transceiver module is provided with four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720772434.2U CN206819347U (en) | 2017-06-29 | 2017-06-29 | A kind of encryption serial ports Switching Module based on FPGA |
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| CN201720772434.2U CN206819347U (en) | 2017-06-29 | 2017-06-29 | A kind of encryption serial ports Switching Module based on FPGA |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710592A (en) * | 2018-05-19 | 2018-10-26 | 济南浪潮高新科技投资发展有限公司 | A kind of simple multipath I 2 C interface burning module |
| CN113609067A (en) * | 2021-06-25 | 2021-11-05 | 天津津航计算技术研究所 | Implementation system of 32-channel RS485 interface card |
-
2017
- 2017-06-29 CN CN201720772434.2U patent/CN206819347U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108710592A (en) * | 2018-05-19 | 2018-10-26 | 济南浪潮高新科技投资发展有限公司 | A kind of simple multipath I 2 C interface burning module |
| CN113609067A (en) * | 2021-06-25 | 2021-11-05 | 天津津航计算技术研究所 | Implementation system of 32-channel RS485 interface card |
| CN113609067B (en) * | 2021-06-25 | 2024-03-19 | 天津津航计算技术研究所 | System for realizing 32-channel RS485 interface card |
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| GR01 | Patent grant | ||
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Effective date of registration: 20211027 Address after: 250100 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd. Address before: 250100 First Floor of R&D Building 2877 Kehang Road, Sun Village Town, Jinan High-tech Zone, Shandong Province Patentee before: JINAN INSPUR HIGH-TECH TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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