CN202353597U - Embedded home gateway - Google Patents
Embedded home gateway Download PDFInfo
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- CN202353597U CN202353597U CN2011205362439U CN201120536243U CN202353597U CN 202353597 U CN202353597 U CN 202353597U CN 2011205362439 U CN2011205362439 U CN 2011205362439U CN 201120536243 U CN201120536243 U CN 201120536243U CN 202353597 U CN202353597 U CN 202353597U
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- arm microprocessor
- interface
- home gateway
- sdram
- embedded home
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Abstract
The utility model discloses an embedded home gateway which is used for connecting home information equipment and the internet. The embedded home gateway is characterized by comprising an advanced reduced instruction set computer machine (ARM) microprocessor, wherein the ARM microprocessor is connected mutually with the Ethernet; the ARM microprocessor is connected with a universal input/output (I/O) interface, a Flash memory, a synchronous dynamic random access memory (SDRAM), a display panel and a keyboard. Processing data of home equipment are delivered to the ARM microprocessor through the universal I/O interface to be processed, the processed data are delivered to the Flash memory for storage, or the data are decompressed, delivered to the SDRAM for storage, and displayed on the display panel; all the home equipment is monitored by the ARM microprocessor through the universal I/O interface; and controlling commands are transmitted to the ARM microprocessor by the keyboard. By means of the embedded home gateway, SamsungS3C4510B with an ARM serving as a core is used, safety and stability are achieved, so that development requirements of information appliances are met, and high performance-price ration and good market prospects are achieved.
Description
Technical field
The utility model relates to a kind of gateway, specifically is fit to a kind of embedded home gateway that vast family uses.
Background technology
In recent years along with the extensive use of embedded system and information household appliances, the various network device of individual family and company is inserted Internet have been become a kind of inevitable.And one of parts of the most critical of access network are gateways, and wherein home gateway is because in close relations with the information household appliances that emerge recently, thereby receives much attention more.Home gateway is the intelligent access device towards the domestic consumer, is the center network that founds a family with it, and connects at a plurality of equipment room share I nternet networks, and the equipment of safe communication, amusement, the integrated function of storage is provided for the user simultaneously.As the core of home network, home gateway plays total control in the family, coordinates the effect of all devices, and the user is provided unified, is convenient to use the interface.
Summary of the invention
The purpose of the utility model provides a kind of embedded home gateway that is applicable to information home equipment and Internet connection.
The utility model is to adopt following technical scheme to realize its goal of the invention; A kind of embedded home gateway; It comprises the ARM microprocessor interconnected with Ethernet, and the ARM microprocessor is connected with general purpose I/O interface, Flash memory, SDRAM, display floater, keyboard; The service data of household equipment is sent into the ARM microprocessor and is handled through general purpose I/O interface, and the data after the processing send into that the Flash memory is preserved or decompress(ion) is sent among the SDRAM and preserved, and are shown in display floater; Ethernet is monitored each household equipment through general purpose I/O interface through the ARM microprocessor; Keyboard is carried control command to the ARM microprocessor.
The described serial line interface of the utility model is connected with SDRAM through bus driving circuits, gets among the SDRAM storage or transfers data through bus driving circuits through the signal of serial line interface.
The system bus drive ability relative more weak problem of the utility model in order to overcome the ARM microprocessor, described bus driving circuits adopts the 74LVC4245 chip.
The utility model is in order to keep normal operation, and described ARM microprocessor also is circumscribed with and is used for the JATG interface of testing software function, trace routine operation.
The described Flash memory of the utility model is to be formed by parallelly connected structure of the Flash memory HY29LVl60 chip of two 2M.
The described SDRAM memory of the utility model is made up by two HY57V641620 chip parallel connections and forms.
Because adopt technique scheme, the utility model has been realized goal of the invention preferably, it utilizes the SamsungS3C4510B of ARM for core, and safety, stable has satisfied the demand for development of information household appliances, and high cost performance and good market prospects are arranged.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Can know by Fig. 1; A kind of embedded home gateway; It comprises and the interconnected ARM microprocessor of Ethernet (present embodiment is applicable to that transmission rate is the Ethernet of l0Mbps/l00Mbps) that the ARM microprocessor is connected with general purpose I/O interface, Flash memory, SDRAM, display floater, keyboard; The service data of household equipment is sent into the ARM microprocessor and is handled through general purpose I/O interface, and the data after the processing send into that the Flash memory is preserved or decompress(ion) is sent among the SDRAM and preserved, and are shown in display floater; Ethernet is monitored each household equipment through general purpose I/O interface through the ARM microprocessor; Keyboard is carried control command to the ARM microprocessor.
The utility model according to the little processing selecting of system requirements the S3C4510B chip produced of ARM framework Samsutag company, its kernel is general 32 the ARM7TDMI microprocessor cores by the design of ARM company.The key character that it is different from other ARM7 processors is its exclusive framework strategy that is referred to as Thumb.Its operating frequency is 50MHZ, and chip integration has become abundant general module, contains and supports the adaptive ethernet controller of 10M/100M, can directly draw Ethernet interface through the PHY chip.Ethernet PHY chip is selected the lxt972a chip of Intel Company for use, and it has 10M, 100M self adaptation transmission-receiving function, supports full-duplex operation, is connected to RJ45 through network transformer YL18-2050S, carries out the transceive data packet function.
The described serial line interface of the utility model is connected with SDRAM through bus driving circuits, gets among the SDRAM storage or transfers data through bus driving circuits through the signal of serial line interface.
The utility model is for the system bus drive ability that overcomes the ARM microprocessor more weak problem relatively, and considers the level conversion problem of bus, and described bus driving circuits adopts the 74LVC4245 chip as bus driver and level conversion.
The serial line interface of the utility model is because the high and low level signal of RS-232-C standard definition is different with the high and low level signal of the LVTTL circuit definition of S3C4510B system; Therefore; To communicate between the two and must select for use two MAX232 chips to accomplish the data of two UART interfaces and the level conversion of hardware flow control signal in this device through the conversion of signal level.
The utility model is in order to keep normal operation; Described ARM microprocessor also is circumscribed with and is used for the JATG interface of testing software function, trace routine operation, is used for the ARM microprocessor is debugged, and the testing software function is used; Can come trace routine with it, check the result of program running.
The described Flash memory of the utility model is 32, is formed by parallelly connected structure of the Flash memory HY29LVl60 chip of two 2M, is used to deposit program code, constant table and some user data that needs are preserved after system's power down etc.
The described SDRAM memory of the utility model is made up by two HY57V641620 chip parallel connections and forms, and Boot 10ader during system start-up, will be moved in the SDRAM space of 32MB from Flash altogether, and the decompression operation system also will move among the SDRAM.
The S3C4510B chip of the described ARM microprocessor of the utility model can be supported 18 general purpose I/O; The user can be input pattern, output mode or specific function pattern with each port arrangement; Control by the special function register in the sheet; Can external 4 laser-emitting diodes; Constitute demonstration or other output function (like demonstration time, recalls information, flow information, stored information etc.) of display floater, also can select high and low level as the state input, with control program flow process or other input functions by external wire jumper as running state of programs.
Because the S3C4510B chip does not provide physical layer interface, the utility model adopt RTL8201 that MII is provided interface, and the mac controller of existing band MII interface in the S3C4510B sheet can simple realization connect for the access passage is provided to Ethernet.
The described ARM microprocessor of the utility model also is connected with power circuit, real-time clock interface circuit, switch and reset circuit.
Claims (8)
1. an embedded home gateway is characterized in that it comprises the ARM microprocessor interconnected with Ethernet, and the ARM microprocessor is connected with general purpose I/O interface, Flash memory, SDRAM, display floater, keyboard; The service data of household equipment is sent into the ARM microprocessor and is handled through general purpose I/O interface, and the data after the processing send into that the Flash memory is preserved or decompress(ion) is sent among the SDRAM and preserved, and are shown in display floater; Ethernet is monitored each household equipment through general purpose I/O interface through the ARM microprocessor; Keyboard is carried control command to the ARM microprocessor.
2. embedded home gateway according to claim 1 is characterized in that serial line interface is connected with SDRAM through bus driving circuits, gets among the SDRAM storage or transfers data through bus driving circuits through the signal of serial line interface.
3. embedded home gateway according to claim 2 is characterized in that described bus driving circuits adopts the 74LVC4245 chip.
4. embedded home gateway according to claim 1 is characterized in that described ARM microprocessor also is circumscribed with to be used for the JATG interface of testing software function, trace routine operation.
5. embedded home gateway according to claim 2 is characterized in that described ARM microprocessor also is circumscribed with to be used for the JATG interface of testing software function, trace routine operation.
6. according to claim 1 or 2 or 3 or 4 or 5 described embedded home gateways, it is characterized in that described Flash memory is to be formed by parallelly connected structure of the Flash memory HY29LVl60 chip of two 2M.
7. according to claim 1 or 2 or 3 or 4 or 5 described embedded home gateways, it is characterized in that described SDRAM memory is formed by two HY57V641620 chip parallel connection structures.
8. embedded home gateway according to claim 6 is characterized in that described SDRAM memory is formed by two HY57V641620 chip parallel connection structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205362439U CN202353597U (en) | 2011-12-20 | 2011-12-20 | Embedded home gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205362439U CN202353597U (en) | 2011-12-20 | 2011-12-20 | Embedded home gateway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353597U true CN202353597U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205362439U Expired - Fee Related CN202353597U (en) | 2011-12-20 | 2011-12-20 | Embedded home gateway |
Country Status (1)
| Country | Link |
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| CN (1) | CN202353597U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857396A (en) * | 2012-08-31 | 2013-01-02 | 南京鑫三强科技实业有限公司 | Embedded IC (integrated circuit) card reader-writer based on CAN (controller area network) technology and ARM (advanced RISC (reduced instruction-set computer) machines) technology |
| WO2014079249A1 (en) * | 2012-11-20 | 2014-05-30 | 中兴通讯股份有限公司 | Network terminal and display method therefor |
| CN106506298A (en) * | 2016-11-30 | 2017-03-15 | 南宁学院 | A kind of embedded home gateway |
-
2011
- 2011-12-20 CN CN2011205362439U patent/CN202353597U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102857396A (en) * | 2012-08-31 | 2013-01-02 | 南京鑫三强科技实业有限公司 | Embedded IC (integrated circuit) card reader-writer based on CAN (controller area network) technology and ARM (advanced RISC (reduced instruction-set computer) machines) technology |
| WO2014079249A1 (en) * | 2012-11-20 | 2014-05-30 | 中兴通讯股份有限公司 | Network terminal and display method therefor |
| US9811243B2 (en) | 2012-11-20 | 2017-11-07 | Zte Corporation | Network terminal and display method therefor |
| CN106506298A (en) * | 2016-11-30 | 2017-03-15 | 南宁学院 | A kind of embedded home gateway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121220 |