JPH02126354A - Computer system - Google Patents

Abstract

PURPOSE:To easily set the address of an input/output device without needing a hardware switch and to decrease the burden of a user by providing a ROM to store a hardware constitution setting program and an address setting device. CONSTITUTION:When a certain application software is used, first, a hardware constitution setting program in a ROM 13 is activated, the assignment address to serial input/output ports 19 to 21 is designated by a user and stored into an address storing memory 14. Next, after the power source is turned off, by turning on again, the hardware initial setting program in the ROM 13 is activated, the address assignment information stored in the memory 14 is read, and given to an address setting device 15. The device 15 sets the address to the ports 19 to 21 based on the inputted address assignment information. Thus, since the address setting of the input output device can be executed easily without needing the hardware switch, the burden of a user can be decreased.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is applicable to, for example, an S■0 boat (serial input/output boat).
The present invention relates to a computer system having a plurality of input/output devices such as the above, and particularly relates to a computer system suitable for setting addresses for input/output devices.

(Conventional technology) In recent years, improvements in high-density packaging technology have made it possible to equip multiple 510 ports, and these SIO boards can be used to use multiple application software such as communication, LAN, and serial mouse. It's starting to look like this.

By the way, in such a computer system having a plurality of SIO ports, the address of the S10 port is not always fixed, and needs to be reset at any time depending on the application software used.

Conventionally, addresses of such SIO ports have been set using a deep switch, which is a hardware switch. However, as the number of application software increases, the number of SIO boat addresses also tends to increase.However, when setting addresses using deep switches as described above, multiple switches are required, which places a burden on the user. There is.

(Problems to be Solved by the Invention) As described above, the conventional configuration used a deep switch to perform address setting, which had the drawback of placing a burden on the user.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a computer system that can easily set addresses for input/output devices without requiring a hardware switch, thereby reducing the burden on the user. With the goal.

[Structure of the Invention] (Means for Solving the Problem) In other words, the computer system according to the present invention can allocate a plurality of addresses to each input/output device set in advance according to the type of application software from among information. By using a hardware configuration setting program that allows information to be specified for necessary address allocation, the specified address allocation is configured to set addresses for each of the above-mentioned input/output devices based on the information.

(Operation) According to the above configuration, the address of the input/output device can be set by specifying the address allocation according to the application software to be used from among the plurality of preset address allocations. Therefore, the address can be easily set without requiring the conventional deep switch operation, thereby greatly reducing the burden on the user.

(Embodiment) Hereinafter, a computer system according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the circuit configuration thereof.

In FIG. 1, reference numeral 11 denotes a CPU that controls the entire system, and accesses memory, input/output devices, etc. via a system bus 12. 13 is a ROM. The ROM 1B stores various data necessary for address setting, including the hardware configuration setting program shown in FIG. 2(a) and the hardware initialization program shown in FIG. 2(b). Reference numeral 14 denotes an address storage memory, in which address assignment specified by activation of the hardware configuration setting program of the ROM 13 stores information. Reference numeral 15 denotes an address setting device, which performs address setting based on address assignment information read from the address storage memory 14 upon activation of the hardware initialization program in the ROM 13. Also, 16, I7.18
is a decoder, and 19.20.21 is a serial input/output port (SIOI to 5I03).

Next, the operation of this embodiment will be explained with reference to the flowchart shown in FIG.

This computer system has three serial input/output ports S I 01 (19), S 102 (20
), 5103 (21) are installed, and these serial input/output ports can be used for communication between computers and application software such as mouse control.

Here, when using a certain application software, first, as shown in the flowchart of FIG. 2(a), the hardware configuration setting program stored in the ROM 13 is started (step AI), S101~
The user specifies the address for each serial input/output port 19 to 21 of 5I03 (step A2).
.

That is, when the hardware configuration setting program is started (step A1), for example, as shown in FIG.
Information on a plurality of address assignments consisting of combinations of addresses to be assigned to 101 to 5IO3 is displayed on a display device (not shown). Information on each address assignment is set in advance according to the type of application, and here consists of five address combinations.

In addition, in the third factor, A1, A2, A3 are I10
Indicates address. Moreover, - indicates that the system does not have an I10 address, and in this case, a commercially available communication board can be used.

The user selects the required address assignment information from the information (here, the five address assignments are information), that is, the combination of addresses to be assigned to 5IOI to 5IO3 depending on the application software used, for example. This is specified manually using keys on a keyboard (not shown) (step A2).

This designated address allocation information is stored in the address storage memory 14 (step A3).

The user specification is finished here, and then by turning off the power and then turning it on again, the hardware initial settings stored in the ROM 13 are restored as shown in the flowchart of FIG. 2(b). The program is started (step B1).

When the hardware initial setting program is started, the address allocation information stored in the address storage memory 14 is read out and given to the address setting device 15 (step B2). The address setting device 15 sets addresses for each of the serial input/output ports 19 to 21 of 5IO1 to 5103 based on the input address assignment information (step B3). That is, when the hardware configuration setting program is started, for example, if information is specified for the address allocation of combination 1 shown in FIG.
Addresses are assigned such as A3 for 1.5IO2 and A3 for 5IO3.

By configuring the hardware configuration setting program in this way, the address of the SIO port can be set from among multiple address assignments set in advance, or by specifying information for address assignment according to the application software to be used. Can be set by Therefore, it is possible to set an address on a package without requiring the conventional disk switch operation, thereby significantly reducing the burden on the user.

Although this embodiment describes the address setting of a serial input/output port, the present invention is not limited to this, and can be applied to other input/output devices such as a parallel input/output port using a similar method. Even in this case, the same effects as in the above embodiment can be obtained.

[Effects of the Invention] As described above, according to the present invention, the address of the input/output device is set based on the address interrupt information specified from among a plurality of preset address interrupt information, so that the hardware switch It is possible to easily set the address of an input/output device without the need for , and the burden on the user is reduced.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a circuit configuration according to an embodiment of the present invention, Fig. 2 is a flowchart for explaining the operation of the embodiment, and Fig. 3 is an example of displaying address allocation information in the embodiment. FIG. [l...CPU, 12...System bus, 13...
・ROM. 14...Address storage memory, 15...Address setting device, 16-18...Decoder, ■9-21...
Serial Capo-1- (SIOI ~ 5103)
. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Scope of Claims] A plurality of input/output devices, a memory storing a plurality of pieces of address allocation information for each of the input/output devices set in advance according to the type of application software, and each of the above-mentioned address allocation information of this memory. 1. A computer system comprising: address setting means for setting an address for each input/output device based on address assignment information specified from among the above.