JPS63206847A - Data transmitter/receiver - Google Patents

Abstract

PURPOSE:To transmit an initial program by a remote control operation, by constituting a system so that the initial program is received from a data network at the time of turning ON the power source of the system, and the program is loaded on the whole of the system, and the whole of the system can be started up after completing the loading of the program. CONSTITUTION:A data transmitter/receiver sends a communication data from a personal computer 3-7 to a line via an automatic outgoing/incoming type network control unit (NCU)3-5, and performs communication with another personal computer. The main processing unit (MPU)1 of the data transmitter/receiver manages the processing operations of a line corresponding processor (CIOP)2 and general input/output processors 3 and 4. The CIOP2 is operated by an initial program load (IPL) command from the MPU1, and rises the line control function of data transmission/reception for the line, and the IOPs 3 and 4 are operated by an IPL command from the MPU1, and rises the input/output function of a general data. Thus, it is possible to transmit the initial program by the remote control operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmitting/receiving device that performs automatic dialing, automatic dialing, automatic receiving, etc. via a communication line by operation from a personal computer.

[Conventional technology]

FIG. 3 shows, for example, the magazine "Interface" 198
It is a hardware configuration diagram of a communication adapter for a personal computer that complies with the Ministry of Posts and Telecommunications notification shown in March 2006 (CQ Publishing), pages 242 to 257. In the figure, 3-1 is a central processing unit (hereinafter referred to as CPU), and all programs shown in the software configuration diagram of FIG. 4 are stored in ROM 3-2. Reference numeral 3-3 is a RAM, and 3-4 is a communication input/output unit which performs data transmission between adjacent devices via an automatic call originating/terminating type network control device 3-5 NCU. 3-6 is a terminal user output unit, and 3-7 is a personal computer for communication.

Next, the operation of the communication adapter will be explained with reference to the software configuration diagram shown in FIG. First, when communicating with a PC, the task scheduler (real-time monitor) 4-1 that manages each task uses a monitor that can communicate messages between tasks to perform multitasking (multiple programs can be run on a time-sharing basis under a certain scheduler OS). (task scheduling) Each task equipped on the software is a terminal output task 4-
2. Controls the conversion task 4-3 and the communication input/output unit 3-4. Further, each program of the task driven by the line control task 4-4 is stored in advance in the ROM 3-2, and when the power is turned on, task scheduling is performed by the real time monitor and data communication is performed. That is, the CPU 3-1 fetches the program written in the ROM 3-2 (during which period the addressed instruction or data is given from the ROM 3-1 to the CPU 3-2) and executes the process in the CPU 3-1. Then, the regular initial program IPL is loaded into a predetermined program area on the RAM 3-3, and the system communication start-up operation is completed.

[Problem that the invention seeks to solve]

Since the conventional data transmitting/receiving device is configured as described above, multitasking is performed by one CPU, which limits its processing power. Also, although all programs are stored in the ROM, the only way to do so is to load them into the RAM from the hard drive, disk, etc.

If the program is stored in ROM, the software modification work is very troublesome, and if the program is loaded from the hard disk, a hard disk device and hard disk controller are required, which is expensive. In order to modify the software that can avoid such problems, it is necessary to replace the ROM or hard disk, which poses problems such as the need to go to the equipment.

This invention was made in order to solve the above-mentioned problems, and in order to increase the processing power of multitasking, it is possible to use multiple CPUs and to transmit an initial program into the RAM of each CPU by remote control. The purpose is to provide a data transmitting and receiving device.

[Means for solving problems]

In the multiprocessor configuration system in the data transmitting/receiving device according to the present invention, only the program of the line corresponding section and the operating system O3 are stored in ROM, and other programs receive and receive initial programs through the line and are loaded into the RAM of each processor. After the initial program load is completed, the entire system starts operating.

[Effect]

The line support section of the data transmitting/receiving device according to the present invention starts operating standalone when the device is powered on,
Perform remote initial program load. After the program has been loaded, it operates as a member of the multiprocessor according to instructions from the main processor.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. In FIG. 1, the same parts as in FIG. 3 are designated by the same reference numerals. Reference numeral 1 denotes a main processing unit (hereinafter referred to as MPU, main processor unit) which manages the operations of all processors.

Reference numeral 2 denotes a line compatible processor (hereinafter referred to as Cl0P, common input/output processor) which performs transmission and reception on the line.

! , 3.4 is a general input/output processor (hereinafter abbreviated as IOP, input/output processor) which performs general input/output including the personal computers 3-7 and the like.

Figure 2 is a software configuration diagram of this invention.
It is designed to perform processing operations such as PL, initialization, and system startup, and 2-A-1, 2-B-2.
, 2-C-3 are the initial program load (hereinafter abbreviated as IPL) functions of the respective operating systems, and 2-A-1 is the IPL function A. C1OF2. l0P3.
IPL command 2-11 is issued for 4. Also, Cl0P2
Similarly, the initial program 2-13 is received from .

When the IPL function B 2-8-2 receives the IPL command 2-11 from the MPUI, it transitions to the initializer B 2-8-4. Further, when the IPL function C2-C-3 receives an IPL command 2-11 from the MPUI, it receives an initial program 2-13 from Cl0P2. Initializer A 2-
A-8 creates an environment (initial conditions) in which the task scheduler 2-5 can operate, and outputs a start command 2-12 to other processors.

Additionally, initializer B 2-B-4 similarly creates an environment where task scheduler 2-8-5 can operate, and initializer C2-8-9 also creates an environment where task scheduler 2-5 can operate, and both start from MPUI. Wait for command 2-12.

Here, the task scheduler 2-B-5 performs a multitasking operation, and the task of the application operates under the task scheduler 2-8-5.

The line control task 2-6 is unique to Cl0P2 and performs transmission and reception on the line via the automatic call/call type network control unit NCU3-5. IPL task 2-7 is remote IPL
It controls the transfer of programs to other processors by the line control task 2-6 and the initial program 2-13.

When the initialization of each processor is completed in this way, the next step is to start the system, at which time the application task 2-10 runs after the system startup with the program loaded by the remote controller (1) L described above.

Next, the operation of the present invention will be explained with reference to the software configuration diagram shown in FIG.

First, in Fig. 2, Cl0P2 is input from MPUI to IPL.
Upon receiving command 2-11, initializer B2-B-4
After creating an environment in which only line control task 2-6 and IPL task 2-7 can operate, task scheduler 2
Multi-tasking is performed by -8-5, and Star Door Tsubu is performed stand-alone.

Next, the IPL task 2-7 controls the line control task 2-6, receives the initial program 2-13 from the line, and loads the initial program I into other processors and its own processor.
Other processors that perform PL have IPL function A 2-A
-1, Initial program 2- Confession after C2-C-3
Take in 13.

When the IPL task is finished, the MPUI returns to initializer A.
2-A-8, and Cl0P2 and 10P3.4 create an environment in which all applications can perform multitasking using the task scheduler 5 under the initializers C2-C-9.

When the initialization work is completed, all processors continue to run the task scheduler 2-B- under the command of the MPU 1.
5, multitasking all applications and starting up the system.

In the above embodiment, a remote IPL in a system with a multi-processor configuration was taken as an example, but the same effect as in the above embodiment can be obtained in a system equipped solely with a line-compatible processor or a mariner output processor.

〔Effect of the invention〕

As described above, according to the present invention, when the system power is turned on, the initial program is received from the data network, loaded into the entire system, and the entire system is started up after the loading is completed, so there is no need for a hard disk drive, etc. In addition to making the device cheaper, the operator does not have to go to the device to replace the ROM or hard disk, and the software can be easily modified.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram of a data transmitting and receiving device according to an embodiment of the present invention, FIG. 2 is a software configuration diagram of FIG. 1, and FIG. 3 is a hardware configuration diagram of a conventional data transmitting and receiving device. FIG. 4 is a software configuration diagram of FIG. 3. In the figure, 1 is a main processing unit (MPU), 2 is a line compatible processor (CIOP), and 3.4 is a general input/output processor (IOP).

Claims (2)

[Claims] (1) In a data transmitting/receiving device that sends communication data from a personal computer to a line via a data transmitting/receiving device and communicates with other personal computers using a predetermined communication protocol, a data transmitting/receiving device provided in each processing function unit of the data transmitting/receiving device IPL
A main processing unit that manages processing operations of all processors of one or more sets of processors with functions, and an IPL from the main processing unit
A line compatible processor that is activated by a command and starts up a line control function for transmitting and receiving data to the line, and a general input/output processor that is activated by an IPL command of the main processing unit and starts up a general data input/output operation function. A data transmitting/receiving device characterized by: (2) During the above IPL command, only the line-compatible processor stands up as a standalone, communicates with the network side at the task level and receives the initial program, and after the initial program is loaded, it functions as a component of PC communication in the main processing unit. 2. The data transmitting/receiving device according to claim 1, wherein the data transmitting/receiving device operates under control.