JPH02137197A - Interface device - Google Patents

Abstract

PURPOSE:To attain exact data transfer by executing data error processing when data are transferred by a first data transfer means, which transfers file data in a computer to a ROM writer, and a second data transfer means to transfer ROM data to the computer. CONSTITUTION:A first transfer means 14 can execute the transmission and reception of the data between a computer 2 and a ROM writer 3 with responding to a writing command, with which the file data in the computer 2 are written to a ROM in the ROM writer 3, and transfers the file data to the ROM writer 3. A second data transfer means 15 can execute the transmission and reception of the data between the computer 2 and the ROM writer 3 with responding to the writing command, whith which the ROM data in the ROM writer 3 are written to a data file in the computer 2, and transfers the ROM data to the computer 2. When the data are transferred by the first and second data transfer means 14 and 15, a data error is detected and the error processing is executed. Thus, the exact transmission and reception can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an interface device, and more particularly to an interface device between a personal computer (hereinafter abbreviated as a personal computer) and a ROM writer.

Conventionally, this type of interface device was only capable of sending file data on a floppy disk, which is a data file in a personal computer, to a ROM writer. The method is to write this data into ROM.

As described above, the conventional interface device has the disadvantage that it is only one-way for transmission from the floppy disk to the ROM writer, and therefore ROM data in the ROM writer cannot be written to the floppy disk. Also,
Since writing data to the ROM writer is a manual operation on the ROM writer, operating knowledge is required and the operation is complicated.Furthermore, if there is an abnormality in the ROM or data, error processing is not performed. has.

Therefore, the present invention has been made to solve the drawbacks of the existing devices, and its purpose is to automatically establish two-way communication between a computer and a ROM writer. An object of the present invention is to provide an interface device that enables accurate data transmission and reception.

According to the present invention, there is provided an interface device between a computer and a ROM writer, which interfaces the computer and the ROM writer in response to a write command for writing file data in the computer to a ROM in the ROM writer. a first data transfer means for transferring the file data to the ROM writer by enabling transmission and reception between the two; a second data transfer means for transferring the ROM data to the computer by enabling transmission and reception between the computer and the ROM writer; and detecting a data error during data transfer between the first and second data transfer means. Thus, an interface device having an f# feature is obtained, which includes an error processing means for performing error processing based on the f# function.

i flag E Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a system block diagram of an embodiment of the present invention.

The interface device 1 has a bidirectional interface function between the personal computer 2 and the ROM writer 3. In the interface device 1, the task selection instruction unit 11 instructs the interface device 1 to perform tasks, such as clearing the RAM in the ROM writer 3 and transferring data from the data file of the personal computer 2 to the ROM writer 3. There are tasks for transferring data from the ROM in the ROM writer 3 to the personal computer 2.

The RAM 297 section 12 has a function of performing the task of clearing the RAM described above, and the transfer task selection section 13 selects a data transfer task corresponding to the data transfer direction instructed by the task selection instruction section 11, and transfers the data from the file to the ROM. An operation instruction is given to the data transfer means 14 from the ROM to the file or the data transfer means 15 from the ROM to the file.

The data transfer means 14 selects 11 files to be transferred! The data transfer section 22 actually transfers file data to the ROM writer 3, and the error processing section 23 detects and displays errors in the transferred data.

The data transfer means 15 includes a file name determination unit 24 that determines the file name of the transfer destination, a data transfer unit 25 that actually transfers ROM data to a file on the personal computer 2, and an error processing unit that performs error detection and display of transferred data, etc. It consists of 26.

FIG. 2 is an operation flowchart of the RAM 297 section 12. In response to the RAM clear instruction from the task selection instruction section 11, it requests input of a communication command from the ROM writer 3. At the same time as this command is keyed in, the RAM in the ROM writer 3 is cleared. After clearing is completed, a check is made to see if the data transfer task should proceed or should be terminated, and if it is finished, the entire process is terminated and the data is extracted from the program. If data transfer is selected, the process is transferred to the transfer task selection unit 13. When data transfer is instructed by the task selection instruction section 11, the process similarly shifts to the transfer task selection section 13.

The transfer job selection unit 13 performs data transfer from file to RO.
Check whether the transfer is to the M writer or from the ROM writer to a file, and if it is the former, the data transfer means 14
If it is the latter, the process is shifted to the data transfer means 15.

FIG. 3 is an operational flowchart of the data transfer means 14 from the file to the ROM writer. First, a data file to be transferred is selected, and a communication command from the ROM writer 3 is requested. When a command is keyed in in response to this request, transfer data is transmitted to the RAM, which is a buffer within the ROM writer 3. At this time, if an error exists in the transferred data, an error message is displayed.

An erase check of the ROM to be written is performed, and the R
A check is also made to see if there is any abnormality in the OM.

If there is an error in the ROM, an error message will be displayed. If everything is normal, data writing to the ROM is executed, and after the writing is completed, it is checked whether other data transfer is being executed.

If there is none, all processing will be completed and the program will be exited.

FIG. 4 is an operation flowchart of the data transfer means 15 from the ROM writer to the file. First, insert the file (floppy disk) on the destination computer,
Specify the file name. If the specified file name already exists, a message to that effect will be displayed. If this file name is acceptable, proceed to the next process. If this file name is inappropriate, a request to specify a new file name will be made. will be done.

When the file name specification is completed, the disk capacity is checked, and if it is insufficient, a message to that effect is displayed and an instruction to replace the disk is given.

If the disk capacity is sufficient, a communication command from the ROM writer 3 is requested. When the command is keyed in in response to this, the ROM writer 3 at the same time
Load the OM data and send it to the PC 2, where it will be written to the disk with the specified file name. Also during this data transfer, data error detection and display is performed.

When data writing is completed, it is checked whether it is necessary to execute other ROM data transfer, and if it is not necessary, all 1 is completed and the data is extracted from the program.

As described above, according to the present invention, two-way communication between the data file of the personal computer and the ROM writer is possible by simply keying in the communication command to the ROM writer, so special ROM writer operations are required. Since no knowledge is required, there is an effect that bidirectional data transfer is easily possible. It also performs error checking and RO during data transfer.
A check as to whether there is a remaining disk capacity that matches the M capacity is also automatically performed, so that safe and reliable data transfer is possible.

[Brief explanation of the drawing]

Fig. 1 is a system block diagram of an embodiment of the present invention, Fig. 2 is an operation flowchart of the RAM clear section, Fig. 3 is an operation flowchart of the data transfer means from the file to the ROM writer, and Fig. 4 is the operation flowchart from the ROM writer to the file. FIG. Explanation of symbols of main parts 1... Interface device 2... Personal computer 3... ROM writer 14... Data transfer means 15 from file to ROM writer. ...Data transfer means from ROM writer to file Figure 1

Claims (1)

[Claims] (1) An interface device between a computer and a ROM writer, which converts file data in the computer into RO
a first data transfer means for transmitting the file data to the ROM writer by enabling transmission and reception between the computer and the ROM writer in response to a write command to write to the ROM in the M writer; ROM of
a second data transfer means that transfers the ROM data to the computer by enabling transmission and reception between the computer and the ROM writer in response to a write command to write data to a data file in the computer; An interface device comprising: error processing means for detecting a data error and processing the error during data transfer by the first and second data transfer means.