JP2004013463A5

JP2004013463A5 -

Info

Publication number: JP2004013463A5
Application number: JP2002165137A
Authority: JP
Filing date: 2002-06-06
Publication date: 2005-10-13

Claims

A communication program for designating a range of addresses assigned to the RAM in the address space and writing new data received from the communication destination, and a communication index referred to for starting the communication program in response to the communication interrupt A rewritable ROM for storing communication core information including at least one of the embedded vector;
Rewrite mode setting means for setting a rewrite mode for rewriting at least the communication core information of the rewritable ROM;
A copy storage area corresponding to a core storage area that is a storage area of the communication core information in the rewritable ROM is set in the RAM, and copy core information that is a copy of the communication core information is stored in the copy storage area. A communication core information copy means for storing;
Memory access switching means for switching between memory access to the core storage area and memory access to the copy storage area in the address space according to the setting of the rewrite mode,
Rewrite area designating means for designating the address of the copy storage area when the rewrite mode is not set as the designated address of the communication program when the rewrite mode is set;
A memory rewriting device comprising:

The communication core information includes both the communication interrupt vector and the communication program,
The communication interrupt vector is based on a relative address,
The communication core information copy unit is configured to copy the communication core information to the RAM so as to maintain a relative relationship between the communication interrupt vector and the communication program, and store the copied core information as the copy core information. The memory rewriting device according to claim 1.

The relative relationship between the head in the RAM and the copy storage area matches the relative relationship between the head in the rewritable ROM and the core storage area,
3. The memory rewriting device according to claim 1, wherein the memory access switching unit includes a memory switching unit between the rewritable ROM and the RAM.

The rewritable ROM and the RAM are each composed of one chip,
4. The memory rewriting device according to claim 3, wherein the memory switching means is means for switching each chip by chip selection.

Each means of the memory rewriting device according to any one of claims 1 to 4,
Program processing means for performing processing according to a program stored in the rewritable ROM;
An information processing apparatus comprising:

A printing unit for printing on a predetermined print object;
The information processing apparatus according to claim 5, wherein the plurality of interrupt programs include a program that causes the printing unit to perform the printing.

The information processing apparatus according to claim 6, wherein the print object is a tape.

An information processing apparatus according to any one of claims 5 to 7,
A supply device for transmitting the new data as the communication destination;
An information processing system comprising:

The supply device includes:
A mounting means capable of mounting a storage medium storing the new data and a program for transmitting the new data;
Program execution means for transmitting the new data according to the program stored in the mounted storage medium;
The information processing system according to claim 8, further comprising:

10. The information processing according to claim 8, wherein the supply device is connected to another device via a predetermined network and has higher-level communication means for receiving the new data from the other device. system.

A communication program for designating a range of addresses assigned to the RAM in the address space and writing new data received from the communication destination, and a communication index referred to for starting the communication program in response to the communication interrupt A memory rewriting method for rewriting the rewritable ROM by writing new data received from the communication destination using the communication program to a rewritable ROM that stores communication core information including at least one of an embedded vector. Because
A rewrite mode setting step of setting a rewrite mode for rewriting at least the communication core information of the rewritable ROM;
A copy storage area corresponding to a core storage area that is a storage area of the communication core information in the rewritable ROM is set in the RAM, and copy core information that is a copy of the communication core information is stored in the copy storage area. A communication core information copy process to be stored;
A memory access switching step of switching between memory access to the core storage area in the address space and memory access to the copy storage area according to whether or not the rewrite mode is set;
When the rewrite mode is set, a rewrite area designating step for designating the address of the copy storage area when the rewrite mode is not set as the designated address of the communication program,
A memory rewriting method comprising:

A storage medium storing a program capable of executing the function of each unit of the memory rewriting device according to claim 1.

A storage medium storing a program capable of executing the memory rewriting method according to claim 11.