WO2005003980A1 - 多目的半導体集積回路装置 - Google Patents
多目的半導体集積回路装置 Download PDFInfo
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- WO2005003980A1 WO2005003980A1 PCT/JP2004/009194 JP2004009194W WO2005003980A1 WO 2005003980 A1 WO2005003980 A1 WO 2005003980A1 JP 2004009194 W JP2004009194 W JP 2004009194W WO 2005003980 A1 WO2005003980 A1 WO 2005003980A1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/387—Information transfer, e.g. on bus using universal interface adapter for adaptation of different data processing systems to different peripheral devices, e.g. protocol converters for incompatible systems, open system
Definitions
- the present invention relates to a semiconductor integrated circuit device including a semiconductor chip or a chip set.
- a device server for connecting a device having only a serial port to a computer network such as the Internet.
- a computer network such as the Internet.
- console ports for network device configuration are serial ports.
- Japanese Patent Application Laid-Open No. 2002-228853 discloses that the serial port is connected to a network via a device server, and the protocol is converted by the device server to access the console port of the network device via the network. It describes that a parameter file is set.
- a device server has a function of converting a protocol and transferring data. Since a different protocol for force conversion has a different chip for an interface controller, it is necessary to use a different device server.
- a device server (DS) for mobile phones that is different from a device server (DS) that connects the serial port to the Internet is used. ing.
- serial ports or serial interfaces that can input and output serial data
- serial data such as RS-232C, USB, Philips I2C, and IEEE1394.
- Connecting these interfaces to a computer network requires different protocol conversions.
- serial interface there are many requests to connect devices that have only a parallel interface, analog interface, and digital interface (hereinafter, target devices) to the network.
- target devices to the network.
- the target device Even if a computer terminal (PC) can be accessed simply via a network, the target device must be developed unless an application for displaying and analyzing data obtained from the target device is developed. Information cannot be output or used.
- the target device is a digital camera
- image data can be obtained from the digital camera via a network
- an application such as a viewer that can process the image data is required to display the image data. become.
- the image obtained from the digital camera is a home page (HP) pasted into an HTML file, you can easily view the digital camera image via a network if only a web browser is running, but only the device server Does not have such a function.
- HP home page
- a digital camera is connected to a computer network via a personal computer equipped with a function as a device server and also equipped with a function to create HP, it may not be possible to fulfill the purpose, but at that point, the target device will be reduced in cost Can't say that we could easily connect to the network.
- an object of the present invention is to provide an apparatus that can easily connect a wide variety of devices to a network at low cost. It is another object of the present invention to provide a device that allows the output of various devices to be easily viewed, for example, from a browser.
- a plurality of types of input and Z or output interfaces also referred to as an input Z output interface or an input / output interface in this specification.
- a semiconductor integrated circuit device is not limited to a one-chip semiconductor integrated circuit device such as a system LSI in which a system including an embedded processor is mounted on one semiconductor substrate. Combined with ASIC, ROM and RAM chips for interface A set, or even a module including those chips assembled together.
- a chip is not limited to a system LSI, but is a concept including a chip set and a module in which the chip set is integrally mounted.
- a plurality of types of input / output interfaces are also described as a plurality of types of input / output interfaces, and an interface for inputting various data, an interface for outputting, and an input / output interface. And at least one power for output.
- the input z output is also described as an input / output, and indicates at least one of the input and output of data and the input and output.
- the input Z output interface may include a physical part such as a connector, but it is provided as a chip or a module, and is basically a physical part in order to be versatile. Is preferably not included.
- each type of input / output interface is one of the protocols specified by the standard of each interface, which is higher than the protocol including the data link layer. It has a function to handle or process data according to the protocol included in the hierarchy.
- a plurality of types of input / output interfaces include Ethernet, which is a network interface that can access a computer network (a network in this specification).
- MAC Registered trademark controller
- CF Compact Flash (registered trademark) interface
- serial I / O interface serial I / O interface
- USB-HOST interface USB-HOST interface
- USB-TARGET interface NO.
- Larenore I / O interface an I2C bus interface proposed by Philips, an interface with AZD conversion function or D / A conversion function, and an interface with audio CODEC function.
- a device server can be easily constructed by connecting a connector serving as a physical layer to a plurality of types of input / output interfaces of a multipurpose semiconductor integrated circuit device.
- a device server for connecting a target device having no network interface to the network can be easily constructed.
- the power of multiple types of input / output interfaces of the multipurpose semiconductor integrated circuit device is connected to the target device inside or outside the target device, and the other types of input / output interfaces of multiple types are connected, for example, a network.
- the interface and the connector By connecting the interface and the connector, it becomes possible to provide a device with a network interface without changing the assets of the conventional target device.
- a semiconductor integrated circuit device equipped with various types of input / output interfaces in advance enables mass production, and enables a multipurpose semiconductor integrated circuit device. Hardware costs can be low enough.
- a function of handling data according to various types of protocols can be mounted in advance, but processing or operation between interfaces can be performed. It is impossible to pre-install a function to determine or to pre-install all the control logic for that purpose. If data is transferred by performing protocol conversion between the serial interface and the TCP protocol of the network interface, the logic for performing such processing must be installed in the ROM or sequencer of the semiconductor processing device. Is possible. However, developing a program by assuming processing between various types of interfaces in advance takes time and effort, and furthermore, the data processing method changes depending on the target device, and the processing method may change depending on the user. Always there. Therefore, it is impossible to preload the functions including the functions of the application layer.
- a file storage area for storing a script file that defines processing relating to data input / output by a plurality of types of input / output interfaces in a script language.
- a script file executable interpreter and a file management system that can access the file storage area of the memory from at least one of a plurality of types of input / output interfaces.
- the user logic can be described in a script language and can be executed as it is on the semiconductor integrated circuit device, no compiler is required, and resources for developing the user logic can be minimized. Further, it becomes very easy to mount and change the user logic on the multipurpose semiconductor integrated circuit device.
- the multipurpose semiconductor integrated circuit device of the present invention has a plurality of types of input / output interfaces, it is equipped with a file management system, and a memory file is output from at least one of the human-powered z-output interface.
- a file management system By allowing access to the storage area, the management of the script file in the multipurpose semiconductor integrated circuit device becomes open, and the user can very easily perform the management.
- one of the multiple types of input / output interfaces is a PC interface that can be connected to a computer terminal (PC), for example, USB—Target interface
- PC computer terminal
- USB—Target interface USB—Target interface
- USB Storage class mass storage class
- the multipurpose semiconductor integrated circuit device can have a LAN-serial transfer function.
- One of the multiple types of input Z output interfaces is a network interface that is accessed based on the address of a computer network and can support at least one of the network protocols valid in the computer network.
- Multiple Another one of the types of input / output interfaces is a serial interface that supports serial input / output, and the multipurpose semiconductor integrated circuit device has a transfer means for transferring data between the network interface and the serial interface. It is desirable to have them.
- a relatively frequently used LAN-serial transfer function can be provided in firmware.
- a plurality of script files can be stored in the file storage area, and a program management system that monitors the occurrence of an event, selects a script file associated with the generated event, and executes the selected script file using an interpreter. Can be further mounted.
- a plurality of jobs can be executed by one semiconductor integrated circuit device.
- one of a plurality of types of input Z output interfaces may be a network interface accessible to a computer network, and at least one web output file stored in a file storage area according to the HTTP protocol via the network interface.
- the web server system to be supplied can be mounted on a semiconductor integrated circuit device.
- the web server system supports CGI (Common Gateway Interface) and / or SSI (Server Side Include), and a program management system with an event monitoring function detects CGI and / or SSI as events, Alternatively, by selecting a script file specified by the SSI, the semiconductor integrated circuit device can be easily controlled from a web browser.
- CGI Common Gateway Interface
- SSI Server Side Include
- the script file may include a script that acquires at least one of a plurality of types of input / output interfaces and outputs the acquired information as at least a part of a web output file.
- the acquired data for example, a digital image
- the target device is a measuring device such as a thermometer or a hygrometer, the temperature, humidity or other measured values measured on site can be easily viewed from a web browser via a network using a multipurpose semiconductor integrated circuit device be able to.
- One of several types of input Z output interfaces is accessible to a computer network.
- the network interface can be used with a semiconductor integrated circuit device, it can be equipped with a clock function and an SNTP client function that acquires time information via the network interface and adjusts the time of the clock function. Time can be managed accurately. Therefore, a program management system having an event monitoring function can monitor the time information of the clock function as an event and select a script file based on the event, and perform processing such as periodically measuring and storing the temperature. It can be freely specified by a script file. In addition, the file storing the measured data can be easily obtained on a PC via a file management system.
- FIG. 1 shows an example of a device connectable to a server chip.
- FIG. 2 shows a module configuration of a server chip.
- FIG. 3 is a block diagram showing a functional configuration of a server chip.
- FIG. 4 is a diagram illustrating functions of a command interpreter.
- FIG. 5 is a diagram illustrating functions of an HTTP server.
- Fig. 6 shows an example of an HTML file
- Fig. 6 (b) shows an example of a script
- Fig. 6 (c) shows an example of an HTML file when the script is executed. Show.
- FIGS. 7 (a) and 7 (b) show output examples of an HTML file.
- FIG. 1 shows an example of equipment connectable by the multipurpose semiconductor circuit device according to the present invention.
- This multipurpose semiconductor circuit device is referred to as a server chip 10 and has various types of interfaces, and can connect various types of devices as target devices.
- the types of interfaces that can be mounted on the server chip 10 are not limited to this, but the interfaces described below use most of the interfaces that are standardly prepared for recent devices. Covering. Unless otherwise specified, the interfaces shown below have the functions of inputting data or outputting data, and furthermore, having functions of inputting and outputting. Therefore, depending on the functions that the user wants to realize with the server chip 10, it is possible to use only for data input, only for data output, and for data input and output. Operates as an input / output interface (input / output interface).
- the server chip 10 includes an Ethernet (registered trademark) controller 11 which is a network interface that can access a network. Therefore, if a physical connector 9 is connected to the controller 11, it can be connected to the Internet 7 via a router 8 via a LAN cable or the like, or via a TA.
- the server chip 10 includes a CF (Compact Flash (registered trademark)) interface 12 which is a card interface. Therefore, it is possible to connect the memory card 6a, the wireless LAN card 6b, the PHS communication card, and the like, and use the functions of the card. Further, the server chip 10 has a plurality of serial IZ 13 interfaces 13.
- a temperature measuring device 5 such as a rooster (registered trademark) of T & D Company
- a mobile phone 4 via a modem.
- the server chip 10 includes a USB-HOST interface 14. Therefore, various data such as image data or print data can be input / output by connecting to a device having a USB interface, such as digital camera 3, scanner, or printer.
- the server chip 10 includes a USB-TARGET interface 15. Therefore, by connecting to the PC 2, the storage area inside the server chip 10 can be made accessible from the PC 2 as a mass storage.
- the server chip 10 includes a parallel I / O interface 16. Therefore, it can also be used for connecting to the alarm device 1 to output an alarm.
- the server chip 10 includes a 12 C bus interface 17 proposed by Philips. Therefore, connection with the external memory 41 is also easy.
- the server chip 10 includes an interface 18 having an AZD conversion function or a D / A conversion function. Therefore, it can also be used for applications such as monitoring the voltage of the battery 42. Further, the server chip 10 has an interface 19 having a voice codec function. Therefore, voice data can be input from the microphone 43, voice data can be output from the speaker, and it can be used as an IP telephone terminal.
- FIG. 2 shows a configuration of the server chip 10 of the present example that is modularized.
- This server chip 10 is a dedicated custom IC (AS) equipped with controllers for various interfaces.
- Each of these units 21 to 24 is provided on a chip.
- the chips 21 and 24 are mounted on the same board 25 and integrated to form one module or one module. It is being offered as a chip.
- the server chip 10 is provided with a 160-pin connector 26 for external input / output.
- a chipset consisting of a plurality of chips is mounted on a single board 25 to form a unit.
- a controller function, CPU function, memory function, etc. of various interfaces are mounted on a semiconductor
- the chip 10 is also possible to use the chip 10 as a system LSI for one chip.
- FIG. 3 is a block diagram showing functions of the server chip 10. Some of the blocked functions are provided by hardware, and the rest are provided by software.
- the server chip 10 includes, as hardware resources, for example, a CPU, memories 23 and 24, a timer 31, a timing device (RTC) 32, a network controller (MAC) 33, a USB host controller 34, a USB function controller 35, a PCMCIA
- the controller (CF) 36 is provided.
- the server chip 10 includes an asynchronous communication device (UART) 37 serving as a serial interface controller constituting the serial I / O interface 13 and an I2C controller 38 constituting the I2C bus interface 17 , A parallel interface controller 39 that constitutes the parallel I / O interface 16, an A / D converter 51, a D / A converter 52 that constitutes the interface 18 with a conversion function, and a CODEC controller 53 that constitutes the audio CODEC interface 19. Yes.
- UART asynchronous communication device
- I2C controller 38 constituting the I2C bus interface 17
- a parallel interface controller 39 that constitutes the parallel I / O interface 16
- an A / D converter 51 that constitutes the interface 18 with a conversion function
- CODEC controller 53 that constitutes the audio CODEC interface 19.
- These hardware resources can be used if they are built in the CPU 22, and can be provided in the ASIC 21 if they are not mounted in the CPU 22.
- the server chip 10 can provide other input / output functions as a program module included in the
- the program modules are stored in the flash memory 23 and executed by the CPU 22.
- IT ⁇ R ⁇ N is adopted as the ⁇ S of the server chip 10 of the present basic example.
- One of the important program modules that support I / O functions is the network interface.
- the server chip 10 includes a program module 63 that supports an HTTP Sano (Web Sano) function, which is one of the application layers of the TCPZIP protocol group. Accordingly, the server chip 10 can distribute HTML data (HTML file) 75 arbitrarily created by the user and stored in the flash memory 23 or the RAM 24 as a web output file via a network according to the HTTP protocol. For this reason, the server chip 10 can be placed on the company intranet or the external Internet 7 and the HTML data 75 can be distributed in response to requests from clients (Web browsers) operating on PC2.
- the HTML data 75 can be placed anywhere on a file system (file management system) 70 of the server chip 10 which will be described later, and a link can be freely set.
- the web server function 63 of this example further supports a CGI / SSI function and is capable of generating dynamic HTML data, which will be described in more detail later.
- the server chip 10 further includes a program module 64 that supports an FTP server / client function, which is one of the application layers. Therefore, in cooperation with the internal file management system 70, it is possible to transmit and receive files via the network between the inside of the server chip 10 or an external memory device connected to the server chip 10. Furthermore, by mounting a module 64 that supports both functions of the server Z client, communication between server chips is also possible. Some recent FTP servers need to perform POPbeforeFTP to increase security.
- the server chip 10 also has a simple POP3 client function to support such servers.
- the server chip 10 is one of application layers, and is used for resolving domain names. Equipped with a module 66 that supports the DNS client function. With the DNS client function 66, the domain name can be resolved when sending an email using the FTP client 64 or the SMTP function 65 described later.
- the DNS client function 66 can be set as primary / secondary.
- the server chip 10 further includes a module 67 that supports a DHCP client function, which is one of the application layers.
- a DHCP client function which is one of the application layers.
- the server chip 10 includes a module 65 that supports an SMTP client function which is one of the application layers. Therefore, an e-mail can be transmitted by a call from the script file 76 described below.
- SMTP client function 65 functions such as From :, To :, and Cc: can be used, and attachments are also possible. Therefore, it is possible to transfer a data file 77 described later by e-mail. Also, by supporting MIME encoding (Base64), it is possible to send mail in Japanese. Since this function 65 is a client function for the mail server, a separate SMTP server is required to actually deliver mail, and a simple POP3 client is used in case POPbeforeSMTP needs to be performed to improve security. Equipped with functions.
- the server chip 10 includes a module 68 that supports an SNTP client function of acquiring time information opened on the network. Therefore, by registering a server corresponding to SNTP, the internal clock (RTC) 32 of the server chip 10 can be adjusted.
- the RTC32 built into the chip 10 is not backed up by a battery.Time information is lost when the power is turned off.However, the SNTP client function 68 queries the SNTP server on the net, It can be adjusted automatically.
- a plurality of SNTP servers can be registered, and the time can be set periodically, such as once a day or once an hour.
- the server chip 10 includes a number of program modules in addition to the TCP / IP protocol group. In terms of networking, it has a module 69a that supports a PPP server / client function that is useful when accessing via the public telephone network using the modem 55. Therefore, it is possible to make a call by calling from the server chip 10 and to receive a call when the chip 10 is directly called by using the public telephone network.
- a wireless LAN driver 69b is installed, and if a wireless LAN card is installed in the card interface 12, it can be connected to a computer network via wireless LAN.
- the server chip 10 also has a driver program for driving each interface module mounted on hardware resources.
- a USB host interface controller 34 constituting the USB host interface 14
- a media driver 36 for a card interface includes drivers for the cards connected to the card interface 12, for example, memory cards and various modem cards. It also includes drivers for serial interfaces, A / D and D / A drivers, and CODEC drivers.
- the server chip 10 normally has a protocol conversion function between a LAN (network) interface (TCP / IP in this example) 33 and a serial interface 37.
- the protocol conversion function when data is supplied from the LAN interface 33 to the serial interface 37, the data received at a specific port (specifiable) on the LAN side is converted (protocol converted) and transmitted to the serial side. Also, when transferring data from the serial interface 37 to the LAN interface 33, only the protocol is converted from the content received on the serial side and the data is transmitted to the LAN side as it is.
- the server chip 10 has a file management system 70 mounted thereon.
- This file management system 70 physically includes a flash memory 22 and an SDRAM 23 that provide a program area and a data area, a CF memory that can be connected to the card interface 12, and a USB memory (mass memory) that can be connected to the USB host interface 34.
- Storage area including storage class device) can be managed as internal storage area (internal file area) .
- the file management system 70 enables access to the internal file area by the FTP function 64 and the USB target interface 35. These file areas can of course be input and output from the script file 76 stored in the same file area.
- the server chip 10 includes a memory area (file storage area) managed by the file management system 70, a program management function 80 for selecting a script file 76, and a command interpreter for executing the selected script file 76. It is equipped with function 90. These will be described with reference to FIG.
- the program management function 80 constantly refers to the monitoring modules 81a 81e that detect the occurrence of an event according to a specific trigger condition and the event messages posted from the monitoring modules 81a-81e to the event message box 82, and
- the event monitoring system 83 that specifies the script file 76 associated with the event message based on the configuration file 78, and reads the specified script file 76 into a local table, and starts the command interpreter 90 using the table start address as a parameter
- a program execution controller 84 for executing the program.
- the schedule monitoring module 81a generates an event by using time information provided from the RTC 32 as a trigger. Events can be specified by time information such as every second, every minute, every hour, date, etc., and data can be obtained from the target device connected to any interface and data can be output . For example, it is possible to easily set a process for periodically acquiring the temperature from the temperature measurement device 5 connected to the serial interface 37 and storing the temperature in the data file 77.
- the timer monitoring module 81b causes the timer 31 to generate an event at specified intervals.
- the port monitoring module 81c generates an event when the level of the designated port of the parallel interface 39 changes in a designated direction (high to low, or low to high). Further, an event can be generated under the condition that the number of pulses within a specified time is large or small.
- the bus access monitoring module 81d generates an event that has received a specified number of bytes in serial communication of the serial interface 37 that performs bus access, and enables processing such as decoding or transferring the received serial data.
- SSIZCGI supervisor The viewing module 81e generates an event by using a CGI or SSI activation tag included in the HTML file 75 to be transmitted by the web server function (HTTP) 63.
- CGI Common Gateway Interface
- HTTPd web server terminal
- SSI Server Side Include
- the server chip 10 transmits the HTML data 75
- the specified script file 76 is activated, and the result can be transmitted to the user's PC 2 including the result.
- the command interpreter 90 interprets a command or a script included in the selected script file 76, and calculates and processes using various program modules and hardware modules mounted on the server chip 10. I do.
- the interpreter 90 is a program that can sequentially execute command statements (scripts) of a program expressed in a high-level or high-level language that can be understood by a user as it is. By looking, editing, and creating, you can specify the application that you want the interpreter 90 to run. Examples of the script include JAVA (registered trademark) script, Perl (Perl), and the like, and data input / output via various interfaces can be instructed by a compact function-type instruction.
- JAVA registered trademark
- Perl Perl
- the command interpreter 90 first interprets the command (step 91), controls the specified peripheral device (step 92), and selects one of the various interface groups 99 mounted on the server chip 10.
- the data or information obtained therefrom is subjected to arithmetic processing (step 93) and output to the data file 77 or HTML75 (step 94). Therefore, in the server chip 10, various processes according to the occurrence of each event can be defined by using the script file 76 that the user can understand and create as it is. Therefore, a framework including a compiler is not required, and the script file 76 is managed by the general-purpose file management system 70, so that it can be easily accessed from any of the interfaces 99. Can be interchanged.
- a file management system The system 70 can be accessed as a mass storage class from the PC 2 via the USB function 35.
- the file management system 70 can also limit the file group that is open to the user.
- the firmware 60 does not open the file to the user, and the script file 76, HTML file 75, event setting file 78, it is possible to allow the user to handle only the data file 77. As a result, the user can define the functions of the server chip 10 safely and extremely easily.
- the file management system 70 has opened the handling of each of the above files 7578 as a USB mass storage class. For this reason, by connecting the server chip 10 to the PC 2 via the USB function interface 35, and by providing the PC 2 with an editor function, the script file 76 can be edited and created extremely easily. No compilers or other framework programs are required.
- the file management system 70 can also handle files 75-78 by the FTP function 64, so that the server chip 10 installed at a remote location can be easily accessed via the Internet 7 and the script file 76 Work such as updating of the system.
- the access control function of the file management system 70 using a password or the like, the security or soundness of the script file 76 can be ensured.
- the HTML data 75 can be distributed by the HTTP server function 63, and at that time, the command script 76 can be executed using the SSI / CGI function 81e. Since this command script 76 is executed sequentially by the interpreter 90 of the server chip 10, dynamic generation of HTML data becomes possible, and information obtained from a target device connected to any of the interface groups 99 is transmitted to the HTML data 75. Can be supplied to the outside via the Internet.
- FIG. 5 shows the outline.
- the HTTP server function 63 of the server chip 10 transmits the HTML data 75 stored in the file management system 70. Supply.
- CGI is defined in the HTML file 75
- an event is generated by the SSI / CGI monitoring module 81e
- the event monitoring system 83 detects the event
- the CG file or the script file 76 specified by SSI is generated.
- the data 90 is performed by the data 90.
- a hardware control or file access and data acquisition process 96 specified in the script file 76 is executed, and the interpreter 90 further executes a process 97 for processing the acquired data.
- the temperature and humidity sensor (temperature and humidity measurement The temperature data and the humidity data are obtained from the device 5, processed into HTML data for output by the interpreter 90, and supplied to the client WWW browser 2 a by the HTTP server function 63.
- FIG. 6A shows an example of the HTML file 75.
- a page 101 shown in FIG. 7A is output.
- the script file 76 containing the script as shown in FIG. 6 (b) is interpreted by the “ond o. Cgi” registered in the HTML file 75. Performed by 90.
- the functions get—ondo () and get—situdo O are described.
- the temperature and humidity are taken from the serial interface 37 and variables such as $ temp and $ hmdt The temperature and humidity at that time can be set.
- the script file 76 can further describe an instruction to create HTML data 75a as shown in FIG. 6C for outputting temperature and humidity using these variables. Is supplied to the client browser 2a. As a result, a page 103 as shown in FIG. 7 (b) is displayed on the client browser 2a.
- the server chip 10 acquires data from the temperature / humidity sensor 5 which is the target device according to the schedule based on the time information supplied from the RTC 32, and stores the data in the file management system 70.
- the processing to be stored in the file 77 can be easily executed by the script file 76.
- the data stored in the data file 77 of the file management system 70 can be easily obtained by the FTP function 64 using the FTP client function 2b of the PC 2.
- the data stored in the data file 77 can be easily obtained by using the USB function 2c of the PC 2 by the USB mass storage class 35d.
- the server chip 10 functions as a device server using the temperature / humidity sensor 5 as a target device.
- the temperature and humidity sensor 5 can be connected to the computer network so that the temperature and humidity can be easily obtained from the client browser via the network.
- Data such as temperature and humidity can be obtained as instantaneous data when accessed, or can be obtained as data measured periodically and stored in the server chip 10.
- a connector 9 for connecting a LAN cable and a connector for connecting a USB cable are required.
- the server chip 10 it is possible to provide the temperature and humidity measurement device 110 having a network connection function.
- HTTP and FTP have a high threshold, and taking into consideration the peripheral control with the target device, it takes a lot of man-hours to create the entire firmware of the device server. Purchasing HTTP or FTP protocol stacks as libraries is not cheap. Therefore, in response to requests to easily publish their own peripheral devices or general-purpose peripheral devices (digital cameras, etc.) on the Web, the company either developed the above-mentioned products in-house, or They purchased or commissioned development of compact modules specializing in 3rd party vendors.
- the portions of HTTP'FTP and peripheral control are generalized, and only the user-unique portion is a script file 76, which is a user-friendly means that can be developed at low cost.
- the script file 76 can be freely rewritten by the user, and is stored in a special area for executing the script (a directory specified in the internal file management system 70 ). For this reason, the method of rewriting the flash memory by re-creating the firmware itself has the risk of affecting other modules due to the correction and the risk of system destruction due to a writing error, while managing the file management system 70 with the script file 76. Placing it below minimizes that risk and also allows easy access via FTP function 64 or as USB Mass Storage Class 35d.
- the scripts include the get ondo () and get situdo () described above. It is possible to prepare functions that define different processes, such as ondo-log-start () and ondo-log-end (), that instruct recording start and stop, as well as functions that acquire the degree and humidity. It is possible. In addition, by preparing in advance functions for performing processing specific to each target device, such as capturing a USB camera image and sending an e-mail, with respect to other devices, it is very easy for a user to connect a target connected to the server chip 10. Can control the device.
- the server chip 10 that is compact and has a wide variety of interfaces including a wide variety of network functions has a very large number of applications.
- IPv6 IP addresses have become almost unlimited, and a wide variety of systems using networks can be constructed extremely easily and at low cost by combining various devices with the server chip 10.
- a network device can be easily formed by combining the server chip 10 with existing hardware resources.
- the server chip 10 can easily construct a system for remote monitoring by combining key status, door opening / closing, window opening / closing, a human body sensor, and the like.
- the multi-purpose semiconductor integrated circuit device includes a plurality of types of input
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JP2005511340A JPWO2005003980A1 (ja) | 2003-07-01 | 2004-06-30 | 多目的半導体集積回路装置 |
US10/562,553 US7822934B2 (en) | 2003-07-01 | 2004-06-30 | Multipurpose semiconductor integrated circuit device |
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PCT/JP2004/009194 WO2005003980A1 (ja) | 2003-07-01 | 2004-06-30 | 多目的半導体集積回路装置 |
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US (1) | US7822934B2 (ja) |
JP (1) | JPWO2005003980A1 (ja) |
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Also Published As
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US7822934B2 (en) | 2010-10-26 |
JPWO2005003980A1 (ja) | 2007-09-20 |
US20060190529A1 (en) | 2006-08-24 |
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