JP4611058B2 - Electronic equipment - Google Patents

Description

The present invention relates to an electronic device such as a DVD recorder that records and reproduces information data on an optical disc such as a DVD (Digital Versatile Disc), and is particularly compatible with the arrangement of panel keys on an operation panel for each of a plurality of model specifications or destination specifications. The present invention relates to an electronic device.

Generally, the plurality of panel keys on the operation panel of the electronic device are arranged differently for each model of the electronic device and for each destination. Therefore, a sub-microcomputer containing a mask ROM (Read-Only Memory) storing a control program for processing input signals of a plurality of panel keys of the operation panel of the electronic device for each model and destination is provided for each model of the electronic device. However, there is a problem in that it is necessary to place an order for each destination, and a sub-microcomputer that processes input signals of a plurality of panel keys of the operation panel of the electronic apparatus cannot be shared and reduced in manufacturing cost.
As background art, it is determined whether or not destination specification setting data is stored in the memory, and if the destination specification setting data is not stored in the memory, it is added to the power-on code transmitted from the remote control device. In some cases, the destination specification setting data is stored in a memory to set the destination specification (see, for example, Patent Document 1).
The microcomputer of the first electronic device outputs the option information request signal of the first electronic device, and the microcomputer of the second electronic device outputs the option information of the first electronic device from the EEPROM based on the option information request signal. There was one that was read out and output to the microcomputer of the first electronic device (see, for example, Patent Document 2).
In addition, the main microcomputer that manages the user interface and the state of the television receiver, and the signal control, screen control, deflection control, and audio control of the television receiver according to the signals from the main microcomputer are respectively performed by a plurality of sub-microcomputers. There was what was made to perform (for example, refer patent document 3).
JP 2001-285735 A JP 2004-5906 A JP 2003-153112 A

However, in the first one described in the background art, it is determined whether or not the destination specification setting data is stored in the memory, and if the destination specification setting data is not stored in the memory, the remote control device Destination specification setting data added to the power-on code sent from can be stored in the memory and the destination specification can be set, but multiple panels of the operation panel of the electronic device for each model and each destination The sub-microcomputer containing a mask ROM in which a control program for processing key input signals is stored is not shared, and the manufacturing cost is not reduced.
Further, in the following, the microcomputer of the first electronic device outputs the option information request signal of the first electronic device, and the microcomputer of the second electronic device outputs the first information from the EEPROM based on the option information request signal. Although the option information of the electronic device can be read and output to the microcomputer of the first electronic device, the option information of a plurality of devices of the composite electronic device is stored in one EEPROM so that one EEPROM is shared. However, it was not intended to solve the above problems.
Furthermore, in the next one, the main microcomputer for managing the state of the user interface and the television receiver, and the signal control of the television receiver, the screen control, the deflection control, the sound according to the signal from the main microcomputer Although the control can be performed by each of the plurality of sub-microcomputers, the signal control, screen control, deflection control, and sound control of the television receiver are individually controlled by the plurality of sub-microcomputers. It was not intended to solve the problem.
The present invention has been made in view of such problems of the background art, and its object is to provide a plurality of panel keys of an operation panel of an electronic device having different specifications for each model and each destination. It is an object of the present invention to provide an electronic device that can share a sub-microcomputer containing a mask ROM in which a control program for processing an input signal is stored.

In order to achieve the above object, the present invention controls a device model specification or destination specification, a key definition value table that associates a key definition value indicating each function of a plurality of panel keys and a key code, and a system of the device. A rewritable nonvolatile first storage means in which firmware to be pre-written, a main CPU for controlling the system of the apparatus, and a main microcomputer incorporating a second storage means for storing control data for the main CPU; It said control means for controlling commanded operation from the main microcomputer, double the plurality of panel keys to command input the operation of the apparatus is provided with different physical arrangement or number for each model specification or each destination specification device Various types of operation panels, sub CPUs that process input signals generated by panel key operations, and panel key operations Sub-microcomputer with a built-in third storage means for storing data for a mask ROM and the sub CPU of the control program is stored for a force signal the sub CPU to process processes the input signal by the operation of the panel keys The main CPU, when the power of the device is turned on, the key of the first storage means based on the model specifications or destination specifications of the device written in the first storage means a key code of the key definition values extracted from the definition value table, and a control function of storing respective predetermined addresses respectively corresponding to each position of the plurality of panel keys of the operation panel in the key table of the second storage means, wherein the key table stored in association with the key code and the address of the key table key definition value in the second storage means A control function for transferring to the microcomputer, and a control function for instructing the control means to perform an operation corresponding to the key code of the key definition value transmitted from the sub-microcomputer. The sub-CPU is transferred from the main microcomputer. each key code of the key definition values of the key tables, each corresponding to each position of the plurality of panel keys of the operation panel in the key table of the third storage means based on the addresses associated with these key codes a control function of storing each predetermined address, when any of the plurality of panel keys of the operation panel is operated, the address corresponding to the position of the third the engineered panel keys in the key table of the storage means And a control function for transmitting the key code of the key definition value stored in the main microcomputer to the main microcomputer.

According to the electronic device of the present invention, when the power of the electronic device is turned on, the key of the first storage means is based on the model specification or destination specification of the electronic device written in the first storage means. the key code of the key definition values extracted from the definition value table, and stored in predetermined addresses corresponding to the respective positions of the plurality of panel keys of the operation panel in the key table the second storage means, the stored Kiteburu Data that associates the key code of the key definition value and the address of the key table is transferred to the sub microcomputer, and the key code of the key definition value of the transferred key table is based on the address transferred in association with these key codes. Te respectively rated at a predetermined address respectively corresponding to each position of the third plurality of panel keys of the operation panel in the key table of the storage means When any one of the plurality of panel keys of the operation panel is operated, the key of the key definition value stored in the address corresponding to the position of the operated panel key in the key table of the third storage means Since the code is transmitted to the main microcomputer and the electronic device is operated corresponding to the key code of the transmitted key definition value, multiple panel keys are provided in different arrangements or numbers for each model and each destination. A sub-microcomputer having a mask ROM in which a control program for processing input signals of a plurality of panel keys is stored can be shared with the plurality of types of operation panels.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a block diagram showing a configuration of an electronic apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory view showing an operation panel of the electronic apparatus according to an embodiment of the present invention, and FIG. FIG. 4 is an explanatory diagram showing a key table of the electronic device of the embodiment, FIG. 4 is a flowchart showing the operation of the main microcomputer of the electronic device of the embodiment of the present invention, and FIG. 5 is an electronic device of the embodiment of the present invention. It is a flowchart which shows operation | movement of a submicrocomputer.
First, a description will be given based on a block diagram showing a configuration of an electronic apparatus according to an embodiment of the present invention shown in FIG.
The electronic device 1 includes a CPU (Central Processing Unit) 2a that controls the system of the electronic device 1, a model specification or destination specification of the electronic device 1, a key definition value table for panel keys, and firmware that controls the system of the electronic device 1. A main microcomputer 2 having a built-in flash ROM (Read-Only Memory) 2b of a rewritable nonvolatile memory written in advance and a RAM (Random Access Memory) 2c in which the CPU 2a stores data for controlling the system of the electronic device 1. The control circuit 3 that controls the operation of the electronic device 1, the CPU 4 a that processes the input signals of the plurality of panel keys provided on the operation panel 5, and the CPU 4 a that receives the input signals of the plurality of panel keys provided on the operation panel 5 Control program to process Paid mask ROM 4b, is composed of a sub-microcomputer 4 RAM4c is built to store the data for processing an input signal of a plurality of panels keys CPU4a is provided on the operation panel 5. The main microcomputer 2 and the sub-microcomputer 4 are connected to each other via a serial bus IIC (Inter-Integrated Circuit) bus 6.
The operation of the electronic device configured as described above will be described below.
When the power supply of the electronic device 1 is turned on, the CPU 2a of the main microcomputer 2 has a key definition value table pre-written in the flash ROM 2b based on the model specification or destination specification of the electronic device 1 pre-written in the flash ROM 2b. The 1-byte key definition value hexadecimal key code (see FIG. 3A) is assigned to the respective positions 0 to 10 (see FIG. 2A) of each panel key 5a of the operation panel 5. The panel key in the figure. (The numbers indicate the positions of the panel keys) corresponding to the hexadecimal addresses 00H to 0AH of the key table of the RAM 2c (see FIG. 3B). For example, when the panel key at position 1 of the operation panel 5 of the electronic apparatus 1 is “POWER key”, the panel key at position 4 is “REC key”, and the panel key at position 9 is “PLAY key” ( 2 (a) and 2 (b)), the CPU 2a of the main microcomputer 2 stores the key code “01H” of the key definition value of the “POWER key” at the address 01H of the key table of the RAM 2c, and the key table of the RAM 2c. The key code “0AH” of the key definition value of “REC key” is stored at address 04H, and the key code “05H” of the key definition value of “PLAY key” is stored at address 09H of the key table of RAM 2c (FIG. 3 ( a) and (b)). If the operation panel 5 is not provided with a panel key due to the model specification or destination specification of the electronic apparatus 1, the key code “00H” of the key definition value “NULL” is stored in the key table of the RAM 2c (FIG. 3 (a) and (b)). FIG. 2B shows a case where no panel key is provided at position 0 of the operation panel 5.
When the key code of the key definition value of each panel key 5a at positions 0 to 10 on the operation panel 5 is stored in the key table address 00H to 0AH of the RAM 2c, the CPU 2a of the main microcomputer 2 stores the key table address 00H of the RAM 2c. The key code of the key definition value stored in ˜0AH is transferred to the sub-microcomputer 4 via the IIC bus 6.
When the key code of the key definition value stored at addresses 00H to 0AH in the key table of the RAM 2c is transferred from the main microcomputer 2 via the IIC bus 6, the CPU 4a of the sub microcomputer 4 transfers the key table transferred from the main microcomputer 2. The key code of the key definition value is received and stored in the addresses 00H to 0AH of the key table of the RAM 4c corresponding to the respective positions 0 to 10 of the panel keys 5a of the operation panel 5 of the electronic device 1 (FIG. 3 (c) )reference).
When one of the panel keys 5a of the operation panel 5 is operated, the CPU 4a of the sub-microcomputer 4 reads the key code of the key definition value from the address of the key table in the RAM 4c corresponding to the position of the operated panel key 5a. The key code of the key definition value is transmitted to the main microcomputer 2 via the IIC bus 6. For example, when the “POWER (PWR) key” of the panel key at position 1 of the operation panel 5 is operated (see FIGS. 2A and 2B), the CPU 4a corresponds to the position 1 of the operated panel key. The key code “01H” (see FIG. 3C) stored in the key table address 01H of the RAM 4c is transmitted to the main microcomputer 2. When the “REC key” of the panel key at position 4 of the operation panel 5 is operated (see FIGS. 2A and 2B), the CPU 4a of the sub-microcomputer 4 moves to the position 4 of the operated panel key. The key code “0AH” (see FIG. 3C) of the key definition value stored at the address 04H of the key table of the corresponding RAM 4c is transmitted to the main microcomputer 2. When the “PLAY (PLY) key” of the panel key at the position 9 on the operation panel 5 is operated (see FIGS. 2A and 2B), the CPU 4a of the sub-microcomputer 4 determines the panel key operated. The key code “05H” (see FIG. 3C) of the key definition value stored at the address 09H of the key table of the RAM 4c corresponding to the position 9 is transmitted to the main microcomputer 2.
When the key code of the key definition value transmitted from the sub-microcomputer 4 via the IIC bus 6 is received, the CPU 2a of the main microcomputer 2 sends a control signal to the control circuit 3, and the received key definition value key code is received. The corresponding electronic device 1 is operated. For example, when the key code “01H” of the key definition value is received, the CPU 2a sends a control signal to the control circuit 3, and “POWER” of the key definition value of the key code “01H” (see FIG. 3A). ON / OFF operation of the power supply of the electronic device 1 corresponding to the above is performed. When the key code “0AH” of the key definition value is received, the CPU 2a sends a control signal to the control circuit 3, and “REC” of the key definition value of the key code “0AH” (see FIG. 3A). The recording operation of the electronic device 1 corresponding to is performed. When the key code “05H” of the key definition value is received, the CPU 2a sends a control signal to the control circuit 3, and the key definition value “PLAY” of the key code “05H” (see FIG. 3A). The reproduction operation of the electronic device 1 corresponding to the above is performed.
The operation will be described with reference to the flowchart of FIG. 4 showing the operation of the main microcomputer of the electronic apparatus according to the embodiment of the present invention.
When the power supply of the electronic device is turned on, the process proceeds from step S1 to step S2. In step S2, the electronic device is prewritten in the flash ROM based on the model specification or destination specification of the electronic device previously written in the flash ROM of the main microcomputer. The key code of the key definition value in the key definition value table is stored in the key table address of the RAM of the main microcomputer corresponding to the position of each panel key on the operation panel, and the process proceeds to step S3.
In step S3, the key code of the key definition value in the key table stored in the RAM of the main microcomputer is transferred to the sub microcomputer via the IIC bus, and the process proceeds to step S4.
In step S4, it is determined whether or not the key code of the key definition value of the key table stored in the RAM of the main microcomputer has been transferred to the sub-microcomputer, and the key code of the key definition value of the key table stored in the RAM is determined. If all the keys have been transferred to the sub-microcomputer, the process proceeds to step S5. If all the key definition values of the key table stored in the RAM have not been transferred to the sub-microcomputer, the process returns to step S3 and steps from step S3 are performed. repeat.
In step S5, it is determined whether or not the key code of the key definition value transmitted from the sub-microcomputer via the IIC bus is received. If the key code of the key definition value transmitted from the sub-microcomputer is received, Proceeding to S6, when the key code of the key definition value transmitted from the sub-microcomputer is not received, the step of Step S5 is repeated.
In step S6, the operation of the electronic device corresponding to the key code of the key definition value transmitted from the sub-microcomputer is performed, the process returns to step S5, and the steps from step S5 are repeated.
Further, description will be made based on the flowchart of FIG. 5 showing the operation of the sub-microcomputer of the electronic apparatus according to the embodiment of the present invention.
When the key code of the key definition value stored in the key table of the RAM is transferred from the main microcomputer via the IIC bus, the process proceeds from step S11 to step S12, and in step S12, the key table key transferred from the main microcomputer. The key code of the definition value is received and stored in the key table address of the RAM of the sub-microcomputer corresponding to the position of each panel key on the operation panel, and the process proceeds to step S13.
In step S13, it is determined whether or not all the key codes of the key definition values in the key table have been received. If all the key codes of the key definition values in the key table have been received, the process proceeds to step S14, and the key definition of the key table is determined. If all the value key codes have not been received, the process returns to step S12 and the steps from step S12 are repeated.
In step S14, it is determined whether any of the plurality of panel keys on the operation panel has been operated. If any of the plurality of panel keys on the operation panel has been operated, the process proceeds to step S15, and the plurality of operation panel keys. If none of the panel keys have been operated, step S14 is repeated.
In step S15, the key code of the key definition value is transmitted to the main microcomputer via the IIC bus from the key table address of the sub microcomputer RAM corresponding to the operated panel key position, and the process returns to step S14. Repeat steps from.
Although the best mode for carrying out the present invention has been described in detail above, the present invention is not limited to this, and modifications and improvements can be made within the ordinary knowledge of those skilled in the art. For example, it has been described that the key code of the key definition value corresponding to each of the 11 panel keys of the operation panel of the electronic device is stored in the key table of addresses 00H to 0AH of the RAM of the sub microcomputer. The key code of the key definition value of the panel key may be stored in a key table of another address of the sub microcomputer RAM.

It is a block diagram which shows the structure of the electronic device of one Example of this invention. It is explanatory drawing which shows the operation panel of the electronic device of one Example of this invention. It is explanatory drawing which shows the key table of the electronic device of one Example of this invention. It is a flowchart which shows operation | movement of the main microcomputer of the electronic device of one Example of this invention. It is a flowchart which shows operation | movement of the submicrocomputer of the electronic device of one Example of this invention.

Explanation of symbols

1 Electronic device 2 Main microcomputer 2a CPU
2b Flash ROM
2c RAM
3 Control circuit 4 Sub-microcomputer 4a CPU
4b Mask ROM
4c RAM
5 Operation panel 5a Panel key 6 IIC bus

Claims (1)

Device model specifications or destination specifications, key definition value table that associates key definition values and key codes indicating the functions of each of the plurality of panel keys, and rewritable nonvolatile memory preliminarily written with firmware for controlling the system of the device A first microcomputer having a main characteristic, a main CPU for controlling the system of the apparatus, and a main microcomputer incorporating a second memory for storing control data for the main CPU;
Control means for controlling the operation commanded from the main microcomputer;
And a double type control panel in which a plurality of panel keys provided at different physical arrangement or number for each model specification or each destination specification device that the commanding input operation of the apparatus,
Sub CPU for processing an input signal from the operation panel keys, an input signal mask ROM control program is stored and the sub CPU is by the operation panel keys for an input signal from the operation panel keys the sub CPU handles A sub-microcomputer having third storage means for storing data for processing;
The main CPU is
Each key definition extracted from the key definition value table of the first storage unit based on the model specification or destination specification of the device written in the first storage unit when the apparatus is turned on the key code value, and a control function of storing respective predetermined addresses respectively corresponding to each position of the plurality of panel keys of the operation panel in the key table of the second storage means,
A control function for transferring a key table stored in the second storage means in association with a key code of a key definition value and an address of the key table to the sub-microcomputer;
A control function for instructing the control means to perform an operation corresponding to the key code of the key definition value transmitted from the sub-microcomputer,
The sub CPU is
A plurality of panel keys of the operation panel in the key table of the third storage means based on the addresses associated with these key codes, each key code of the key definition value of the key table transferred from the main microcomputer a control function of storing respective predetermined addresses respectively corresponding to each position of,
When any one of the plurality of panel keys of the operation panel is operated, the key code of the key definition value stored in the address corresponding to the position of the operated panel key in the key table of the third storage means And an electronic device having a control function for transmitting the information to the main microcomputer.

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