JP2991199B2 - Music signal generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a musical sound signal generating device capable of easily updating or correcting a system program even by a general user. SOLUTION: EEPROMs 8 and 9 are stored with the system program and musical sound data. A memory card 10 can be stored with the system program and also stored with control information showing musical sound data that the contents stored on the card match. A panel operation part 11 is used by an operator to instruct the writing of the system program from the memory part 10 to the EEPROM 8. A CPU 2 writes the system program from the memory card 10 to the EEPROM 8 in response to the write instruction, and also decides whether or not the system program on the memory card 10 matches the musical sound data stored in the EEPROM 9 according to control information stored on the memory card 10 and then informs the user of the decision result by using the display unit DST of the panel operation part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tone signal forming apparatus having a tone data such as waveform parameters for determining tone color and a system program for controlling the tone signal forming apparatus main body, and particularly to updating and correcting the system program. The present invention relates to a tone signal forming apparatus that facilitates (version upgrade).

[0002]

2. Description of the Related Art Conventionally, an electronic musical instrument to which a musical tone signal forming apparatus is applied stores the above-mentioned musical tone data and system programs in a UVEP-ROM (ultraviolet erasable programmable ROM) or MASK.
-What is mounted with what is written in ROM (Mask ROM) is known.

[0003]

By the way, when updating or modifying the above-mentioned system program,
Conventional electronic musical instruments include UVEP-ROM and MAS
The problem is dealt with by replacing the K-ROM itself. However, this replacement work cannot be easily performed by a general user and must rely on a specialized engineer. For this reason, there was a problem that the price required for replacement was very high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a tone signal forming apparatus that can easily update or modify a system program even by a general user. .

[0005]

In order to solve the above problems, the invention according to claim 1 is a storage means for storing musical sound data and a system program, and an external storage means capable of storing the system program. And control information indicating musical sound data to which the content stored in the external storage means is also stored; and instruction means for instructing writing of the system program from the external storage means to the storage means. Writing means for writing the system program from the external storage means to the storage means in response to a write instruction by the instruction means, and processing the musical tone data based on the system program. A tone signal forming device for controlling a tone, wherein the tone signal forming device controls the tone in the external storage means based on control information stored in the external storage means. A determination unit configured to determine whether to conform to the musical tone data system program is stored in the storage means in accordance with the determination by the determining means,
And a notifying unit for notifying a user whether or not the system program stored in the external storage unit matches the tone data stored in the storage unit. According to a second aspect of the present invention, in the musical tone signal forming apparatus according to the first aspect, the user can select whether or not to write a system program stored in the external storage unit into the storage unit. Writing means, wherein the writing means is determined by the determining means to be compatible with the musical tone data stored in the storage means, and is selected by the writing selection means to write to the storage means. It is characterized in that a system program writes in the storage means.

According to a third aspect of the present invention, in the musical tone signal forming apparatus according to the first or second aspect, the external storage means also stores information indicating a storage capacity of the stored system program. Determining means for determining whether or not the storage means has a free storage area sufficient for storing the system program and determining whether or not the system program is compatible with musical sound data stored in the storage means; The notifying means notifies whether or not the storage means has a free storage area sufficient to store the system program. According to a fourth aspect of the present invention, in the musical tone signal forming device according to any one of the first to third aspects, the external storage means also stores information indicating whether or not the stored content is a system program. And determining whether the content stored in the external storage means is a system program, and further determining that the content stored in the external storage means is a system program. Determining whether the program conforms to the tone data stored in the storage means, and notifying the notification means whether or not the content stored in the external storage means is a system program; I have.

According to the present invention, storage means for storing musical tone data and a system program, wherein the system program stored in the storage means can be electrically written and erased, and a system program for storing the system program A possible external storage unit that also stores control information indicating musical sound data to which the content stored in the external storage unit is compatible, and the control information stored in the external storage unit. A determination unit that determines whether the system program in the external storage unit matches the tone data stored in the storage unit, and instructs writing of the system program from the external storage unit to the storage unit. And the system program is read from the external storage means and written to the storage means, and according to the determination by the determination means, Stored system program Kigaibu storage means to notify the user whether or not to conform to the tone data stored in the storage means.

Therefore, when updating or modifying the system program, there is no need to replace the storage means with a new one, and even a general user can easily update or modify the system program. Also, when a system program that does not match the tone data stored in the storage means is read from the external storage means, the user is notified of the fact, so that even a general user can update or correct the wrong system program. Can be easily recognized.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an electronic musical instrument to which a musical tone signal forming device according to one embodiment of the present invention is applied. The electronic musical instrument shown in this figure has a function of a normal synthesizer, that is, a function of generating a musical tone according to a keyboard performance by a player.

In FIG. 1, reference numeral 1 denotes a keyboard unit;
A plurality of keys, a plurality of key switches for detecting an on / off state of each key, a velocity detector for detecting a velocity at the time of keying of each key, and an output of each key switch and an output of the velocity detector An interface circuit (not shown) for supplying a bus line (including an address bus and a data bus) B is configured. Reference numeral 2 denotes a CPU (Central Processing Unit) for controlling each part of the electronic musical instrument main body, and 3 denotes a RAM (Random Access Memory). This RAM
In the predetermined area of 3,

[Outside 1] A flag is set. Reference numeral 4 denotes a sound source, which generates a tone signal based on a key operation of the keyboard unit 1. In this case, the timbre included in the tone signal is determined by the waveform parameter. The tone signal generated from the sound source 4 is supplied to an amplifier 5, amplified by the amplifier 5, and emitted as a tone from a speaker 6. 7 is MI
DI (Musical Instrument Digital Interface) receiving circuit, MID output from external MIDI device
A signal of the I standard is read through a MIDI IN (MIDI IN) terminal, and is output to a bus line B. 8 is C
This is an EEPROM (Electrically Eraseable Programmable Read Only Memory) in which a system program for controlling the PU 2 is written. This EEP
As is well known, the ROM 8 can be electrically written and erased. Data is written by a write signal supplied from the CPU 2 and data is erased by an erase signal supplied from the CPU 2. .
FIG. 2 is a diagram showing a memory map of the EEPROM 8 in this embodiment. As shown in FIG.
An IOS (basic input / output operating system) section and a SYSTEM (system program) section are allocated. Reference numeral 9 shown in FIG. 1 denotes an EEPROM in which musical tone data such as waveform parameters for determining a tone color and musical tone information (described later in a list) are written. In this case, the musical sound data is written in a format (see FIG. 3) depending on the system program. Note that the above-described EEPROM
As 8 and 9, it is possible to use both a batch erasing type in which all written data can be collectively erased and a partial erasing type in which partial erasing can be performed. Reference numeral 10 denotes a memory card for supplying musical tone data, a system program, and musical tone information to the electronic musical instrument main body, and is detachably attached to the electronic musical instrument main body by a connector 10A. The memory card 10 is provided with any of a RAM, a ROM, and an EEPROM. These RA
Music data, system programs, and control information are written in each of the M, ROM, and EEPROM. Here, FIG. 4 is a diagram showing an example of control information stored in the memory card 10, and as shown in FIG.
It consists of “storage element type”, “data content” and “data capacity”. The control information is as follows.

(4) Storage element type “00”: RAM “01”: ROM “02”: EEPROM “03”: EEPROM (byte erasable)

② Data content "00": System program "01": Music data

Data capacity “00”: 10 KB “01”: 100 KB “02”: 1 MB

[0014] After the data capacity, RAM and EEPROM
Contains specific information to check for the disappearance of the content. For example, "YAMAHA-MC ○-○○"
etc

On the other hand, the terminals of the memory card 10 are as follows. Data bus: 8 bits Address bus: 16 bits (can be changed according to the required number)

[Outside 2]

[Outside 3]

[Outside 4]

[Outside 5] (Specific to EEPROM (eg, HN58C66), rewrite prevention function)

Reference numeral 11 shown in FIG. 1 denotes a panel operation section for performing various operations of the electronic musical instrument main body. This panel operation unit 1
1 are provided with panel switches SW1 to SW4 and an indicator DS.
P are provided, and an interface circuit (not shown) for exchanging data with the electronic musical instrument main body via the bus line B is provided inside. Here, the function of the apparatus main body by the panel switches SW1 to SW4 will be described.

(A) Panel switch SW1 The panel switch SW1 is used to transfer the tone data written in the memory 10a of the memory card 10 to the E in the main body of the electronic musical instrument.
The instruction to transfer the data to the EPROM 9 is issued to the CPU 2. In this case, the version of the musical sound data read from the memory 10a is stored in the EEPROM of the electronic musical instrument main body.
When the version is different from the version of the system program written in the OM 8, the transfer is not performed.

(B) Panel switch SW2 The panel switch SW2 is connected to the EEPROM of the electronic musical instrument main body.
This is for instructing the CPU 2 to transfer the tone data written in M9 to the memory 10a.

(C) Panel switch SW3 The panel switch SW3 is used to transfer the system program written in the memory 10a to the EEPROM in the main body of the electronic musical instrument.
The instruction to transfer the data to M8 is issued to the CPU 2. In this case, if the version of the system program read from the memory 10a is different from the version of the musical sound data written in the EEPROM 9, an alarm is generated from an alarm generator (not shown).

(D) The panel switch SW4 instructs the CPU 2 to start the transfer of the musical sound data and the system program in each of the panel switches SW1 to SW3.

Next, the operation of the electronic musical instrument having the above configuration will be described with reference to the flowcharts shown in FIGS.

FIG. 5 is a flowchart showing a main routine of the CPU 2. When the power of the electronic musical instrument is turned on, first, an initialization process in step S1 is performed, and the RAM 3 is cleared. Next, step S
Proceeding to 2, the key processing is performed. In this case, the description regarding the key processing is omitted.

When the key processing is completed, step S3
Then, the processing of the panel switch is performed. Hereinafter, the processing of the panel switch will be described.

FIG. 6 is a flowchart showing a panel switch process. In step S4, a key scan is performed,
Panel switches SW1 to SW1 provided on the panel operation unit 11
The on / off state of each of the switches SW3 is sequentially checked. First, the process proceeds to step S5, where the ON / OFF state of the panel switch SW1 is detected. In this case, the panel switch S
If W1 is in the ON state, the process proceeds to step S6, and the process of panel switch SW1 is performed. That is, as described above, the musical tone data written in the memory 10a in the memory card 10 is stored in the memory immediately after the panel switch SW4 is pressed.
The data is transferred to the EPROM 9. On the other hand, the panel switch SW
If 1 is in the off state, the process proceeds to step S7, where the on / off state of the panel switch SW2 is detected. in this case,
If the panel switch SW2 is on, step S8
Then, the process of the panel switch SW2 is performed. That is, as described above, the tone data written in the EEPROM 9 is transferred to the memory 10a immediately after the panel switch SW4 is pressed. On the other hand, the panel switch SW
If the switch 2 is in the off state, the process proceeds to step S9, and the on / off state of the panel switch SW3 is detected. in this case,
If the panel switch SW3 is in the ON state, step S1
The process proceeds to 0, and the process of the panel switch SW3 is performed.
That is, as described above, the system program written in the memory 10a is transferred to the EEPROM 8 immediately after the panel switch SW4 is pressed. On the other hand, when the panel switch SW3 is in the off state, the process proceeds to step S11, and the function processing of the other switches is performed. When the above process ends, the process returns to the step S2.

Next, the above-described panel switches SW1 to SW
The processing in each of W3 will be sequentially described.

FIG. 7 is a flowchart showing a process performed by the panel switch SW1. First, in step S12,

[Outside 6] The flag is set to "H" level. As a result, data can be written. Next, the process proceeds to step S13, where control information such as a storage element type, data content, data capacity, and tone data version is read from the memory 10a of the memory card 10. Next, step S1
4 and the data content of the read control information is
A determination is made as to whether or not the electronic musical instrument matches. If the result of this determination is "NO", that is, if the data content is not the musical tone data itself but a system program, the process proceeds to step S15, and error processing 1 is performed. Here, FIG. 8 is a flowchart showing the error processing. As shown in FIG. 8, in the case of the error processing 1, n = 1, the message "data content is not appropriate" is read from the EEPROM 8, and The data is transferred to the operation unit 11 and displayed on the display DSP. On the other hand, if the result of the determination in step S14 is "YES", that is, if the data content is the tone data itself, the flow proceeds to step S16. In step S26, the memory capacity of the EEPROM 9 is
A determination is made as to whether or not there is enough music data to be written in a. The result of this determination is “N
In the case of "O", that is, when the memory capacity of the EEPROM 9 is not sufficient to write all the musical tone data written in the memory 10a, step S17 is performed.
Then, error processing 2 is performed. Here, in the error processing 2, as can be seen from the flowchart shown in FIG. 8 described above, n = 2, and a message "insufficient memory capacity on the load side" is displayed on the display DSP. In this case, the reading of the tone data in the memory 10a is not performed. On the other hand, if the result of the determination in step S16 is "YES", that is, EEPRO
If the memory capacity of M9 is large enough to write all the tone data, the process proceeds to step S18. In step S18, it is determined whether or not the version of the tone data, which is the remaining information of the control information, matches the version of the system program written in the EEPROM 8. If the result of this determination is "NO",
Proceeding to step S19, error processing 3 is performed. Here, in the error processing 3, as can be seen from the flowchart shown in FIG. 8, n = 3, and a message "the system version is different" is displayed on the display DSP. On the other hand, if the result of the determination in step S18 is "YES", it is determined that the version of the musical sound data matches the electronic musical instrument main body, and step S2
Go to 0. In step S20, it is determined whether or not rewriting may be performed. If the result of this determination is "YES", that is, if the rewriting is permitted by the operator, the operation proceeds to step S21, where the tone data in the memory 10a is written into the EEPROM 9. On the other hand, step S2
If the determination result at 0 is “NO”, that is, if rewriting is not permitted, the process proceeds to step S22,

[Outside 7] The flag is set to "L". With this, EEPRO
Access to M9 is not performed.

After the above processing is completed, the process returns to step S2.

FIG. 9 is a flowchart showing a process performed by the panel switch SW2. First, in step S24,

[Outside 8] The flag is set to "H" level. As a result, data can be written. Next, the process proceeds to step S25, where control information such as the storage element type, data content, data capacity, and version of musical sound data is read from the EEPROM 9. Next, the process proceeds to step S26, where it is determined whether or not the memory 10a of the memory card 10 is a ROM. If the result of this determination is "YES", that is, if the memory 10a is a ROM, the process proceeds to step S27, where error processing 1 is performed. In this case, a message that "the content of the data is not appropriate" is displayed on the display DSP by the error processing 1, but since it is actually a ROM, it should be read as writing impossible. On the other hand, step S
26 is "NO", that is, when the memory 10a is other than the ROM (RAM or EEPROM
OM), the process proceeds to step S28, where the memory 10a
It is determined whether or not the data capacity is sufficient to write all the tone data written in the EEPROM 9. If the result of this determination is "NO", that is, if it is determined that the data capacity is not sufficient, step S
29, error processing 2 is performed, and a message "insufficient memory capacity on the load side" is displayed on the display DSP.
Displayed above. On the other hand, if the result of the determination in step S28 is "YES", that is, if the memory capacity is sufficient, the process proceeds to step S30. Step S
At 30, a determination is made as to whether rewriting may be performed. If the result of this determination is "NO", that is, if rewriting is not permitted, the operation proceeds to step S31. In step S31,

[Outside 9] The flag is set to "L". Then, the process returns to step S2. On the other hand, if the determination result in step S30 is “YE
In the case of "S", that is, when rewriting is permitted, the process proceeds to step S32, where the control information written in the EEPROM 9 is written in the memory 10a, and then in step S33, the control information is written in the EEPROM 9. Music data is written into the memory 10a. Next, proceed to step S31,

[Outside 10] The flag is set to "L". Then, after the RES flag is set to “L”, the process returns to step S2.

FIG. 10 is a flowchart showing a process performed by the panel switch SW3. First, in step S33,

[Outside 11] The flag is set to "H" level. Next, step S
Proceeding to 34, control information such as storage element type, data content, data capacity and version is read from the memory 10a. Next, the process proceeds to step S35, where it is determined whether or not the data content of the currently read control information matches the electronic musical instrument main body. If the result of this determination is "NO", that is, if the data content is not the system program itself but music data, step S3 is executed.
The process proceeds to step 6, where error processing 1 is performed, and a message "data content is not appropriate" is displayed on the display DSP. On the other hand, if the determination result in step S35 is “YE
If "S", that is, if the data content is the system program itself, the process proceeds to step S37. In step S37, it is determined whether or not the memory capacity of the EEPROM 8 is large enough to write all the system programs written in the memory 10a.
If the result of this determination is "NO", that is, EEPRO
If the memory capacity of M8 is not large enough to write all the system programs in the memory 10a, step S3
8, the error processing 2 is performed, and the message "Memory capacity on the side to be loaded is insufficient" is displayed on the display DSP.
Displayed above. In this case, the system program is not read. On the other hand, if the result of the determination in step S37 is “YES”, that is,
If the memory capacity of the OM 8 is large enough to write all the system programs in the memory 10a, step S
Proceed to 40. In step S40, it is determined whether or not the rewriting may be performed. If the result of this determination is "NO"
In the case of, that is, when rewriting is not permitted, the process proceeds to step S39,

[Outside 12] The flag is set to "L". Then, the process returns to step S2. On the other hand, if the determination result in step S40 is “YE
If "S", that is, if rewriting is permitted, the process proceeds to step S41, and the system program is written. Next, the process proceeds to step S42, and it is determined whether or not the version of the system program, which is the remaining information of the control information, matches the version of the tone data written in the EEPROM 9. If the result of this determination is “YES”, that is, if it matches, the flow proceeds to step S39,

[Outside 13] The flag is set to "L". On the other hand, if the result of the determination in step S42 is "NO", the memory 1
If the version of the system program written in 0a does not match the version of the musical tone data written in the EEPROM 9, the process proceeds to step S43, where error processing 4 is performed, and as can be seen from the flowchart shown in FIG. , N = 4, and the message “The system version is different from the tone data version” is displayed on the display DSP. Then, after the error processing 4 is completed, the process proceeds to step S39.

The above is the details of one embodiment of the present invention. As described above, in this embodiment, when the panel switch SW1 is turned on, the musical tone data written in the memory 10a is stored in the EEPROM of the electronic musical instrument main body.
Transferred to OM9. When the panel switch SW2 is turned on, the musical tone data written in the EEPROM 9 is transferred to the memory 10a. When the panel switch SW3 is turned on, the system program written in the memory 10a changes the EEPROM of this system.
Transferred to OM8. In this way, by using an electrically erasable EEPROM, when correcting and updating musical tone data such as waveform parameters for determining a tone and a system program, as in the prior art,
-There is no need to exchange ROM or MASK-ROM.
Therefore, replacement of musical sound data and system programs can be easily performed without relying on a specialist.

In this embodiment, an EEPROM is used.
Although 8 and 9 are used, instead of these, the RAM may be backed up by a battery to store and exchange data. However, in this case, due to the consumption of the backup battery and the discharge of the spark capacitor,
Since it is difficult to save the program correctly,
The advantages of using EPROM are significant.

Although the memory card 10 is used in this embodiment, a floppy disk may be used instead.

In this embodiment, the musical sound data and the system program are supplied from the memory card 10. However, the musical sound data and the system program are converted into MIDI standard signals and transmitted through the MIDI receiving circuit 7. May be supplied to the EEPROMs 8 and 9.

[0034]

As described above, according to the tone signal forming apparatus according to the present invention, the tone data can be stored in the external storage means in which the contents stored in the external storage means are suitable. And external control means (memory card 1).
0) that is electrically writable and erasable from storage means (E
The system program is written into the EPROMs 8 and 9), and based on the control information stored in the external storage means, whether the system program in the external storage means matches the tone data stored in the storage means. Whether the system program is updated or corrected is determined by simply transferring the system program directly from the external storage unit to the EEPROM, and the part (UVEP-ROM or MASK) is updated. -R
Compared to the conventional method of exchanging the OM) itself, even a general user can work easily and at low cost. Also, when a system program that does not match the tone data stored in the storage means is read from the external storage means, the user is notified of the fact, so that even a general user can update or correct the wrong system program. Can be easily recognized. In addition, since a specialized technician is released from the replacement work, the work in the factory is simplified, and there is an advantage that the product price can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic musical instrument to which a musical tone signal forming device according to an embodiment of the present invention is applied.

FIG. 2 is a diagram for explaining the configuration of the embodiment.

FIG. 3 is a diagram for explaining the configuration of the embodiment.

FIG. 4 is a diagram for explaining the configuration of the embodiment.

FIG. 5 is a flowchart for explaining the operation of the embodiment.

FIG. 6 is a flowchart for explaining the operation of the embodiment.

FIG. 7 is a flowchart for explaining the operation of the embodiment.

FIG. 8 is a flowchart for explaining the operation of the embodiment.

FIG. 9 is a flowchart for explaining the operation of the embodiment.

FIG. 10 is a flowchart for explaining the operation of the embodiment.

[Explanation of symbols]

2, CPU, 3 ... RAM (2, 3 are writing means, determination means, notification means, writing selection means), 8, 9 ... EEPR
OM (8 is for storing system program; storage means, 9 is for storing musical sound data; storage means), 10... Memory card, 10a... Memory (10, 10a are external storage means), 11. Instruction means, notification means, write selection means).

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10H 1/00

Claims (4)

(57) [Claims] 1. A storage unit for storing musical tone data and a system program, and an external storage unit capable of storing the system program, wherein control information indicating musical tone data to which contents stored in the external storage unit match. Instruction means for instructing writing of the system program from the external storage means to the storage means; and a storage means from the external storage means in response to a write instruction by the instruction means. And a writing means for writing the system program to the musical tone signal forming apparatus for controlling the tone by processing the tone data based on the system program, wherein the tone data is stored in the external storage means. The system program in the external storage means is added to the music data stored in the storage means based on the control information. Determining means for determining whether the system program stored in the external storage means is compatible with the musical sound data stored in the storage means in accordance with the determination by the determining means. A tone signal forming apparatus comprising: a notifying unit for notifying a user. 2. The musical tone signal forming apparatus according to claim 1, further comprising: a write selection unit for selecting whether or not to write a system program stored in said external storage unit into said storage unit. The writing means stores the system program which is determined by the determination means to be compatible with the musical tone data stored in the storage means, and which is selected by the writing selection means to be written into the storage means. 2. A musical tone signal forming apparatus according to claim 1, wherein said musical tone signal is written in said means. 3. The musical tone signal forming device according to claim 1, wherein said external storage means also stores information indicating a storage capacity of said stored system program, and said determination means is configured such that: Determining whether or not there is enough free storage area to store a system program, and determining whether or not the system program is compatible with musical sound data stored in the storage means; 3. The musical tone signal forming apparatus according to claim 1, wherein a notification is provided as to whether or not there is a free storage area sufficient to store the system program. 4. The tone signal forming apparatus according to claim 1, wherein said external storage means also stores information indicating whether or not the stored content is a system program. Means for determining whether or not the content stored in the external storage means is a system program; and if the content stored in the external storage means is a system program, the system program further executes the storage means. And determining whether or not the content matches the musical sound data stored in the external storage means. The notification means notifies whether or not the content stored in the external storage means is a system program. 3. The musical tone signal forming device according to any one of 3.