Electronic apparatus

Abstract

To provide an electronic apparatus with which it is possible to reduce time and effort of changing the design of control boards.SOLUTION: An electronic apparatus includes a first board (2) and a second board (3). The first board (2) includes a plurality of connecting pads (17a), a microcomputer (11), and a selector (16) for switching the connection between the connecting pads (17a) and the microcomputer (11). The second board (3) includes a plurality of connecting pads (21a) which are connected to a plurality of light receiving elements (23a-23d) each of which performs some action. The connecting pads (21a) are respectively connected to the connecting pads (17a). The selector (16) switches connecting terminals (17a) connected to the microcomputer (11) under control of the microcomputer (11).SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to electronic devices. [Background technology]

[0002] In electronic devices, standardizing parts is one way to reduce costs. When the objects to be controlled are similar, the control board can be a target for standardization. Patent Document 1 discloses a technology for standardizing the motor control board and main control board in a cleaner and a blower by switching the operation of the motor depending on the presence or absence of a trigger switch that is only present in the blower. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2022-11394 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, it is difficult to use movable cables in small terminal devices with excellent portability. Therefore, even a slight change in the relationship between the position of a component that performs analog operations, such as a motor terminal on a board, and the position of a connection pad on the control board requires a design change of the control board. As a result, there is an issue that it takes a lot of time to develop various models with similar performance.

[0005] An object of the present invention is to provide an electronic device that can reduce the effort required for changing the design of a control board. [Means for solving the problem]

[0006] In order to achieve the above object, the present invention provides a first substrate having a plurality of first connection parts, a control part, and a selector that switches a connection between the first connection parts and the control part; a second substrate having a plurality of second connection parts connected to a plurality of operating parts each performing a certain operation; Equipped with The second connection portions are respectively connected to the first connection portions, The selector switches the first connection unit to be connected to the control unit based on the control of the control unit. It is an electronic device. Effect of the Invention

[0007] According to the present invention, it is possible to reduce the effort required for changing the design of a control board in an electronic device. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating a configuration of an electronic device according to an embodiment of the present invention. [Diagram 2] 10A and 10B are diagrams illustrating an example of selection of an input signal by a selector; [Diagram 3] 11A and 11B are diagrams illustrating switching between a power generating operation and a light emitting operation by a selector. [Figure 4] FIG. 13 is a diagram showing an example in which a plurality of motors are selectively operated; [Diagram 5] 11A and 11B are diagrams illustrating an example of switching between selection and non-selection of a motor. [Figure 6] FIG. 13 is a diagram showing an example of allocation of functions to a second board. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating the configuration of an electronic device 1 according to the present embodiment. The electronic device 1 of this embodiment is, for example, an electronic wristwatch capable of displaying the time by rotating a number of hands.

[0010] The electronic device 1 includes a microcomputer 11 (control unit), a memory 12, a communication module 13, a satellite radio wave receiving and processing unit 14, an oscillator circuit 15, a selector 16, input / output ports 17, 21, a motor 22, a light receiving element 23, an operation detection unit 24, a solar cell 25, a push button switch 26, a crown 27, a gear train 28, a pointer 29, and a battery 30.

[0011] The electronic device 1 has a first substrate 2 and a second substrate 3 inside a housing. The first board 2 is provided with a microcomputer 11, a memory 12 (storage unit), a communication module 13, a satellite radio wave reception processing unit 14, an oscillator circuit 15, a selector 16, and an input / output port 17. The communication module 13 and the satellite radio wave reception processing unit 14 each have an antenna as necessary.

[0012] The microcomputer 11 has a central processing unit (CPU) 111 and a random access memory (RAM) 112, and controls the overall operation of the electronic device 1. The CPU 111 is a processor that performs arithmetic processing. The CPU 111 may have a configuration and performance optimized for the purpose of the electronic device 1, i.e., for use in an electronic wristwatch. The RAM 112 provides a working memory space for the CPU 111 and stores temporary data. In addition, the microcomputer has signal input / output terminals, etc. The input signal may include a clock signal generated by a signal of a certain frequency generated by the oscillator circuit 15 or a signal of a frequency divided from this frequency.

[0013] The memory 12 includes a non-volatile memory and stores setting data and the like. The non-volatile memory is, for example, a flash memory. The memory 12 stores port settings 121 (selection information). The port settings 121 store information on signal wiring connected to each port of the microcomputer 11, as described later. Specifically, the port settings 121 store which connection pad 17a in the input / output port 17 is connected to each port of the microcomputer 11 by the selector 16, and which configuration in the second substrate 3 the connection pad 17a corresponds to. Note that, when a large amount of data is stored, the electronic device 1 may have an additional memory. For example, when the electronic device 1 has a sensor and stores measurement data of the sensor, an additional memory may be located on the second substrate 3 in addition to the memory 12.

[0014] The communication module 13 controls communication, particularly two-way communication, with an external device. Controllable two-way communication includes, for example, Bluetooth (registered trademark). The satellite radio wave reception processing unit 14 determines the current date and time and performs positioning based on radio waves from a positioning satellite related to the GNSS (Global Navigation Satellite System). The satellite radio wave reception processing unit 14 has a receiving unit and a calculation processing unit. The receiving unit receives radio waves from the positioning satellite and demodulates and decodes the radio waves. The calculation processing unit performs calculation processing related to obtaining the current date and time and determining the current position based on the signal from the positioning satellite obtained by the receiving unit. The calculation processing unit may have a CPU and RAM separate from the CPU 111 and RAM 112. The communication module 13 and the satellite radio wave receiving and processing unit 14 may be capable of switching on and off the power supply and operation, that is, the on and off of the switches, independently of the operation of the microcomputer 11.

[0015] Among the signal wirings of the second substrate 3 connected to each connection pad 17a via the connection pad 21a, the selector 16 switches the signal lines connected to the microcomputer 11 or the like under the control of the microcomputer 11. Note that all the signal wirings of the first substrate 2 connected to the connection pads 17a do not necessarily have to be connected to the microcomputer 11. Some signal wirings may be directly connected to components other than the microcomputer 11.

[0016] The input / output port 17 has a plurality of connection pads 17a (first connection parts). Each connection pad 17a is connected to the selector 16 by wiring on the first substrate 2. Each connection pad 17a may be completely common. Alternatively, the connection pads 17a may be divided into a plurality of groups according to the voltage or power that can be applied. Information regarding which configuration on the second substrate 3 a signal can be input / output to / from each connection pad 17a of the input / output port 17 is stored in advance in the port setting 121. When the selection is switched, the current connection state is also stored and held in the port setting 121.

[0017] A motor 22 and a light receiving element 23 (light detection element) are connected to a connection pad or terminal on the second substrate 3. The motor 22 includes, for example, a stepping motor. The stepping motor rotates a gear train (wheel train mechanism) that rotates the pointer 29 in conjunction with the light receiving element 23. The light receiving element 23 is positioned so that the amount of detected light changes when the pointer 29 is at a specific rotational position. For example, the pointer 29 may block at least a part of the incident light when at a specific rotational position. Alternatively, multiple gears in the gear train 28 that is interlocked with the pointer 29 may have through holes. In particular, when multiple gears that are partially overlapping in a plan view are at a specific rotational position, the positions of the through holes may overlap to transmit at least a part of the incident light, thereby changing (increasing) the amount of detected light. Alternatively, a gear in the gear train 28 that is interlocked with the pointer 29 may block at least a part of the incident light, thereby changing the amount of detected light. Here, six (multiple) motors 22 and four (multiple) light receiving elements 23 are shown. Accordingly, the electronic device 1 has six or more sets (plurality) of gear trains 28 and hands 29. Some of the hands 29 may be rotated in conjunction with one another by a single motor 22. The light receiving element 23 may not be one for each hand 29. For example, the three hands 29 may be detectable at three common points, for example, at 120 degrees each. In this case, which hand 29 is detected at a specific rotational position may be specified not only by one detection but also by the interval between multiple detections. In addition, when detecting the rotational position of the hand 29 using gears, the electronic device 1 may be configured to be able to detect a state in which all of the multiple gears are at a specific position. The motor 22 and the light receiving element 23 may not be directly fixed to the second board 3, but may be fixed to the second board 3 as an analog block that is a separate grouping of peripheral devices. The electronic device 1 may have other configurations that are not limited to the above. The light receiving element 23 is, for example, a phototransistor. Alternatively, the light receiving element 23 may be a photodiode or the like.

[0018] A push button switch 26 and a crown 27 penetrating the housing are positioned corresponding to the operation detection unit 24 on the second board 3. Here, three push button switches 26 are shown, but this is not limited to this. The push button switch 26 may have a shaft or a leaf spring pressed by the shaft. The operation detection unit 24 may be an electrode that comes into contact with the leaf spring when it is pressed by the shaft.

[0019] The solar cell 25 includes, for example, a solar panel located near the edge of the housing and exposed to the outside, which receives external light and generates power. When the housing is substantially cylindrical, the solar cell 25 may be a plurality of arc-shaped solar panels arranged in a substantially annular shape and connected in series. Therefore, power is normally generated in response to the incidence of external light, and the output voltage is the sum of the electromotive forces of the solar panels. The solar cell 25 outputs a current according to the difference between the output voltage and the charging voltage of the battery 30.

[0020] In this embodiment, the solar panel of the solar cell 25 has a plate-like structure in which a diode having a layer containing a compound semiconductor material such as InGaP as a power generation layer is sandwiched between electrodes on both sides. When a voltage (forward voltage) is applied to the diode structure of this solar panel, the solar panel emits light as an LED (Light Emitting Diode), that is, a light emitting element. When a diode containing InGaP emits light, red light with a central wavelength of 664.5 nm is emitted. Alternatively, when AlInGaP is contained in the diode as a compound semiconductor material, the wavelength becomes shorter than the above and the color becomes closer to orange. In addition, any compound semiconductor material that can obtain appropriate power generation efficiency during power generation and can emit light at a desired wavelength as an LED may be used for the solar panel of the solar cell 25. That is, the solar cell 25 is used as a second device for both power generation and light emission (multiple operations). When external light of a required intensity or more is incident, the solar cell 25 performs power generation, and when external light is insufficient, the solar cell 25 performs light emission, so the periods of these operations do not generally overlap.

[0021] The input / output port 21 has a plurality of connection pads 21a (second connection portion). The connection pads 21a have a number equal to or greater than the total number of the connection pads or terminals to which the motor 22, the light receiving element 23, and the solar cell 25 are respectively connected, and the operation detection unit 24. Each of these input / output ports 21 may be assigned a plurality of types of connection pads 21a according to the applied voltage, maximum power, and the like. Furthermore, a dedicated connection pad 21a used for a specific purpose, for example, a power supply purpose, may be predetermined. Each connection pad 21a of the input / output port 21 is connected to each connection pad 17a of the input / output port 17 directly or via an interconnector or the like. For this purpose, the first substrate 2 and the second substrate 3 may be stacked. Depending on the number of components and the complexity of the wiring, the first substrate 2 may be a stacked substrate, but is not limited thereto. The second substrate 3 may be a thin double-sided substrate, which reduces the thickness of the electronic device 1, but is not limited thereto.

[0022] The battery 30 supplies power to the microcomputer 11 and each unit. The battery 30 is a secondary battery, and can be charged by power generation by the solar cell 25. Both electrodes of the battery 30 are connected to the connection pads of the first substrate 2. The battery 30 may be fixed to the first substrate 2, or may be detachable.

[0023] In this way, components that do not correspond to analog operations such as pointer display or operation, are not exposed to the outside, and are exposed and components that do not need to be in a specific position are located on the first substrate 2. In particular, the number and size of the components on the first substrate 2 do not change depending on the model, etc. Note that the first substrate 2 may be located within the housing at any rotation angle determined depending on the model, etc. of the electronic device 1.

[0024] On the other hand, on the second substrate 3, there is mainly a configuration that is exposed to the outside in response to analog operations such as pointer display and operation, or whose position is determined according to the position of the configuration that is exposed to the outside. In addition to or instead of this, there is a configuration that changes in number, size, etc. depending on the model, etc., and operates individually. That is, the number and position of the configuration changes depending on the model, and connection terminals / pads with peripheral devices (operating units) that operate by signal connection with the microcomputer 11, etc. are concentrated on the second substrate 3. This allows the first substrate 2 to be used in common for multiple models that use the same microcomputer 11, etc.

[0025] Next, the input / output ports 17, 21 and the selector 16 will be described. As described above, the number of signals input / output via input / output port 21 can vary depending on the number of motors 22, light receiving elements 23, operation detectors 24, etc. connected to second board 3. However, the maximum number of each of these components to be connected is roughly determined depending on the specific application, in this case the application as an electronic wristwatch, the performance of microcomputer 11, etc.

[0026] The input / output port 17 has approximately the maximum number of connection ports according to the above signal types, etc. When the number of signal lines connected to the input / output port 21 is less than the maximum number, the surplus connection ports of the input / output port 17 may be set in a floating state or grounded.

[0027] The selector 16 can selectively connect some of the wirings connected to the input / output port 17 to the microcomputer 11 .

[0028] Fig. 2 is a diagram for explaining an example of selection of an input signal by the selector 16. Note that in Fig. 2 and the following figures, electric circuits and electric components other than wiring necessary for explaining the signal flow are omitted. Four light receiving elements 23a to 23d are positioned on the second substrate 3 as the first device of this embodiment. Of these light receiving elements 23a to 23d, light detection signals from the light receiving elements 23c and 23d are selectively (partially) input to the microcomputer 11 by a selector 16 in response to a control signal from the microcomputer 11. If these light detection signals are analog signals, they are converted into digital signals by an analog-to-digital converter (ADC) and then input to the microcomputer 11. Alternatively, the ADC may be positioned on the microcomputer 11, and signal wiring related to the light detection signals may be connected to an input terminal of the microcomputer 11 that is connected to the ADC.

[0029] For example, the light receiving element 23d may be located at a position where external light is incident without being blocked by the gear train 28 or the like. The microcomputer 11 may acquire a threshold value based on the intensity of light received by the light receiving element 23d when external light incident from the display surface side of the electronic device 1 is not blocked. The threshold value may be set to be lower than the intensity of light received by the light receiving element 23d by a certain percentage. The threshold value may also be set to be increased or decreased according to the detection situation of the subsequent angular pointer position. The selector 16 may perform switching during a period in which the pointer 29 corresponding to the light receiving element 23c is not rotating or during a period in which the position of the pointer 29 is not being detected, and the intensity of external light may be acquired by the light receiving element 23d. When the intensity of light detected by the light receiving elements 23a to 23c is higher than the acquired threshold value, the corresponding pointer is identified as the position detected by the light receiving elements 23a to 23c.

[0030] In addition, the signal wiring related to the light receiving elements 23a and 23b may also be switchable with the light receiving elements that can be added. When the number of light receiving elements is less than the maximum number that can be expanded and there is no need to select, it is sufficient that the light receiving elements 23a and 23b are connected to the side that operates in the initial state.

[0031] Moreover, the selector 16 switches the wiring in response to switching between the power generation operation and the light emission operation of the solar cell 25. FIG. 3 is a diagram for explaining switching between the power generation operation and the light emission operation by the selector 16. In FIG.

[0032] 3, the light emission drive circuit 32 is located on the second substrate 3. The light emission drive circuit 32 has a circuit that receives power from the battery 30 and applies a voltage required for light emission to the solar panel of the solar cell 25 when the solar cell 25 is caused to emit light.

[0033] The selector 16 receives a control signal from the microcomputer 11 and switches to selectively perform either a power generation operation or a light emission operation. Specifically, the selector 16 switches between supplying the supply voltage from the light emission drive circuit 32 to a first terminal, which is one terminal of the solar cell 25, or grounding it. When the first terminal is grounded, the generated voltage output from a second terminal opposite to the first terminal is input to the microcomputer 11. When the generated voltage is higher than the output voltage of the battery 30, the microcomputer 11 applies the generated voltage to the battery 30 as a charging voltage. This charges the battery 30. On the other hand, when the first terminal is connected to the supply voltage from the light emission drive circuit 32, the second terminal is grounded via the light emission drive circuit 32. This applies a forward voltage to the solar cell 25, causing the solar panel to emit light.

[0034] The solar cell 25 may be capable of switching the light emission intensity, for example, the microcomputer 11 may be capable of gradually changing the amount of light when the solar panel is turned on and off. Alternatively, the solar cell 25 may be capable of emitting light at an amount of light corresponding to the intensity of external light detected by the light receiving element 23d. In these cases, a control signal specifying a duty ratio of PWM (Pulse Width Modulation) may be separately output from the microcomputer 11 to the light emission drive circuit 32. That is, the input / output ports 17 and 21 may have connection pads 17a and 21a respectively connected to wiring that transmits a signal related to the PWM setting from the first board 2 to the second board 3.

[0035] The switching of these circuits in the selector 16 may be performed by a FET. In this case, the FET may be set so that the power generated by the solar cell 25 can be supplied to the battery 30 even in a stopped state in which no power is supplied to the microcomputer 11. Conversely, the circuit of the selector 16 may be set so that the solar cell 25 emits light only when a signal related to a light emission command is output from the microcomputer 11.

[0036] The selector 16 may be capable of connecting any one of the signal wirings respectively connected to the multiple motors 22 to a wiring for outputting a drive signal from the microcomputer 11. This allows the microcomputer 11 to selectively drive one of the motors 22.

[0037] FIG. 4 is a diagram showing an example in which a plurality of motors 22a, 22b are selectively operated. The selector 16 is connected to the microcomputer 11 so as to selectively output the drive control signal for the motor 22 output from the microcomputer 11 to one of the multiple motors 22a, 22b under the control of the microcomputer 11. The multiple motors 22a, 22b correspond to the first device of this embodiment. That is, two of the total four signal lines connecting the two motors 22a, 22b are selectively connected to the microcomputer 11 by the selector 16. As a result, the operation of one of the motors 22a, 22b is selectively controlled by the microcomputer 11. The arrangement and circuit of the FETs related to the selection are not limited to those shown in the figure. In addition to the above, a signal for stopping the motors 22a, 22b may be separately supplied.

[0038] As in the example of FIG. 2, the selector 16 may have a circuit for selectively connecting one of the two motors to the microcomputer 11 for the signal wiring related to the other motor. If the number of motors is less than the maximum expansion number and there is no need to select a motor, the motor may be connected to the side that is initially connected to the microcomputer 11. The connection pad 17a on the side where the selection is switched for this motor may not be connected to the second substrate 3. In this case, the connection pad 17a may be in contact with the insulating layer of the second substrate 3.

[0039] FIG. 5 is a diagram showing an example of switching between selection and non-selection of the motor 22c. The selector 16 may switch, under the control of the microcomputer 11, whether or not to output the drive control signal for the motor 22 output from the microcomputer 11 to the motor 22c. Usually, it is sufficient that the motor 22c is switched to be drivable, and the drive control signal itself is output from the microcomputer 11 as necessary. However, the selector 16 may be switched so as not to select the motor 22c. When the selector 16 is wired to include such switching, the microcomputer 11 can switch between a first state in which the maximum number of motors 22 selectable by the selector 16 is selected, and a second state in which a part of the motors 22 is selected. The part here may include zero when there is no wiring that always selects one of the motors 22 as shown in FIG. 4.

[0040] The selector 16 may have all or any two of the configurations shown in Figures 2 to 5, or may have only one of them. In addition, when both the case where the solar cell 25 emits light and the case where an LED is provided separately are assumed, the selector 16 may have a path for making the LED emit light in addition to the path for the solar cell 25 to generate power.

[0041] Also, when the electronic device 1 shown in FIG. 4 and the electronic device 1 shown in FIG. 5 are separate electronic devices, each of them can have a common first substrate 2 and different second substrates 3, 3. That is, the electronic device 1 in FIG. 4 has an analog block incorporating two motors 22a, 22b, and a second substrate 3 having connection pads 21a corresponding to the motors 22a, 22b. The electronic device 1 in FIG. 5 has an analog block incorporating one motor 22c, and a second substrate 3 having connection pads 22a corresponding to the motor 22c. Such electronic device 1 in FIG. 4 and electronic device 1 in FIG. 5 can be different models of electronic devices of a common type, for example, electronic watches.

[0042] The first board 2 has a connection pad 17a that can be connected to two connection pads 21a for the motor 22. This allows the first board 2 to be connected to any of the second boards 3, 3 in different electronic devices 1, 1 and used. The selector 16 of the first board 2 can switch, under the control of the microcomputer 11, whether to output the drive control signal for the motor 22 output from the microcomputer 11 to the two motors 22a and 22b or to a single motor 22c. In other words, in the electronic device 1 shown in FIG. 4, the microcomputer 11 can selectively operate the maximum number of motors 22a and 22b that can be selected by the selector 16, which is two motors in this case. On the other hand, in the electronic device 1 shown in FIG. 5, the microcomputer 11 can selectively operate the number (one) of motors 22c that is less than the maximum number (two) that can be selected by the selector 16.

[0043] FIG. 6 is a diagram showing an example of allocation of functions to the second board. As described above, the common first substrate 2 can be combined with different second substrates 3a, 3b corresponding to models having different functions.

[0044] As shown in Fig. 6(a), the second substrate 3a may be connected to a solar cell capable of emitting light, A1 motors, A2 light receiving elements, A3 push button switches, a crown, a buzzer, a liquid crystal screen, a memory of capacity A, etc. On the other hand, as shown in Fig. 6(b), the second substrate 3b may be connected to an LED, B1 motors, B2 light receiving elements, B3 push button switches, a crown, a speaker, a liquid crystal screen, a memory of capacity B, etc.

[0045] The number of signal lines connected between the second boards 3a, 3b and the first board 2 may vary depending on the difference between the numbers A1, A2, A3 and the numbers B1, B2, B3. The input / output port 17 only needs to have a compatible number of connection pads regardless of the type of the second boards 3a, 3b, etc. Each connection pad 17a of the input / output port 17 is connected to the selector 16, and can be arbitrarily selected within a range that can be commonly handled, and connected to the microcomputer 11 or other components.

[0046] As described above, the electronic device 1 of this embodiment includes the first substrate 2 and the second substrate 3. The first substrate 2 has a plurality of connection pads 17a, the microcomputer 11, and a selector 16 that switches the connection between the connection pads 17a and the microcomputer 11. The second substrate 3 has a plurality of connection pads 21a that are connected to a plurality of operating units (peripheral devices) that each perform a certain operation. The connection pads 21a are each connected to the connection pads 17a. The selector 16 switches the connection pads 17a that are connected to the microcomputer 11 based on the control of the microcomputer 11. In such an electronic device 1, the connection terminals of the peripheral devices, the number and arrangement of which may vary for each model, are separated into the second board 3, which is separate from the first board 2 including the basic configuration such as the microcomputer 11. Therefore, in models that can use the same microcomputer 11, it is sufficient to change the design of only the second board 3 according to the design and function while using the first board 2 in common. And, since the first board 2 has the selector 16, it is possible to switch which of the signal wirings of each peripheral device on the second board 3 is connected to the microcomputer 11. This eliminates the need for the microcomputer 11 to simultaneously respond to all of the number and contents of the configuration on the second board 3 that may be changed. In addition, since the microcomputer 11 controls the switching of the connection by the selector 16, dynamic switching during the operation of the electronic device 1 is possible. Therefore, the electronic device 1 can flexibly expand the configuration (peripheral devices) that can be controlled by the microcomputer 11, and use the first board 2 in common among a plurality of models.

[0047] The peripheral devices may also include at least one of the motor 22, the light receiving element 23, and the light emitting element such as the solar cell 25 capable of emitting light or an LED. In an electronic device 1 that displays using multiple pointers, the number and positions of these are likely to change due to various changes in design and function. It is sufficient that the connection parts for these are flexibly designed on the second substrate 3, and that these signals are simply sent to the first substrate 2 of common specifications via the input / output port 17. This makes it possible to develop and manufacture models of the electronic device 1 with modified designs and functions with less effort than before, without having to change the design of the first substrate 2.

[0048] Furthermore, the peripheral devices may include a plurality of first devices of the same type. The microcomputer 11 may be capable of selectively connecting the microcomputer 11 to some of the plurality of first devices by the selector 16. That is, the electronic device 1 can sequentially switch the connection of the signal wiring to the microcomputer 11 as long as the peripheral devices of the same type do not operate simultaneously. This allows the microcomputer 11 to control the operation of more first devices in parallel. Therefore, it is possible to easily handle peripheral devices whose number is greater than the number of input / output terminals of the microcomputer 11.

[0049] Furthermore, the microcomputer 11 may be able to switch between a first state in which the maximum number of first devices of the same type connected to the microcomputer 11 via the connection pads 17a and the selector 16 are operated, and a second state in which the number of first devices of the same type less than the maximum number are operated, by the selector 16. That is, the electronic device 1 does not need to have a plurality of first devices always connected to the microcomputer 11. In this way, by isolating some of the first devices from the microcomputer 11, it is possible to reduce power consumption, particularly in electronic components that flow standby current even when not in operation. Furthermore, when the number of devices connected to the microcomputer 11 is greater than the number of terminals of the microcomputer 11, some of the first devices are temporarily separated to operate the other devices, thereby allowing each device to operate without changing the configuration or wiring pattern of the microcomputer 11 or the first board 2.

[0050] The electronic device 1 may also include a plurality of hands 29 and a gear train 28 that rotates the plurality of hands 29 in conjunction with each other. In this case, the peripheral device includes a plurality of motors 22 corresponding to the plurality of hands 29 and a plurality of light receiving elements 23. The gear trains 28 corresponding to the plurality of motors 22 are rotated in response to the operation of the plurality of motors 22, and the hands 29 also rotate. The plurality of light receiving elements 23 are configured such that the amount of light detected by the light receiving elements 23 changes when the plurality of hands 29 are each in a specific rotation position in response to the operation of the motor 22. The microcomputer 11 may be able to switch by the selector 16 to selectively acquire a light detection signal from one of the plurality of light receiving elements 23. When the operation of the pointer 29 is intermittent, it is not necessary to continue the detection operation of the pointer 29 except when the pointer 29 is in operation. Also, even if the pointer 29 is supposed to be in a position where it will not be detected in advance, some detection operation may be omitted. Furthermore, the acquisition target of the light detection signal by the microcomputer 11 may be quickly switched between the multiple pointers 29 that operate at the same timing before they next operate. Therefore, by appropriately controlling the switching of the light receiving element 23 that receives the light detection signal, the electronic device 1 can detect the pointer 29 using the light receiving element 23 more efficiently. Also, the electronic device 1 can flexibly increase or decrease the number of light receiving elements 23 as necessary.

[0051] The peripheral device may also include a plurality of motors 22. In this case, the microcomputer 11 may be able to switch between a first state in which the maximum number of motors 22 connected to the microcomputer 11 among the plurality of motors 22 is operated by the selector 16, and a second state in which a number of motors 22 less than the maximum number is operated. That is, at a timing when it is not necessary to operate the motors 22, each of the motors 22 may be excluded from the target of the operation control by the microcomputer 11. This allows the electronic device 1 to more efficiently control the operation of the plurality of motors 22. Also, the electronic device 1 can flexibly increase or decrease the number of motors 22 as necessary.

[0052] The peripheral devices may also include a second device used in multiple operations. In this case, the microcomputer 11 may be capable of switching the second device to selectively perform one of the multiple operations using the selector 16. That is, the selector 16 can output an appropriate signal to the second device to perform one of the operations in response to a control signal. In particular, the selector 16 may not only simply switch the control signal to the second device, but also change the signal wiring connected to the second device and leading to the first substrate 2. Due to the operation of the selector 16, the electronic device 1 can flexibly switch the operation of the second device on the second substrate 3 without changing the elements and wiring on the first substrate 2.

[0053] The second device may also include a solar cell 25 having a power generation layer including a compound semiconductor material capable of emitting light when a voltage is applied. The microcomputer 11 may be capable of switching between generating electricity and emitting light by the selector 16. With this configuration, it is possible to integrate some of the space and wiring required for the solar panel and LED, which were previously required separately. Therefore, the electronic device 1 can efficiently control the operation of a greater number of peripheral devices.

[0054] Furthermore, the electronic device 1 may have a memory 12 that stores the selection information by the selector 16. The microcomputer 11 may control the signals of the signal wiring connected to the selector 16 based on the selection information. That is, the operation contents according to the control signal of each connection pad 17a of the input / output port 17 and the corresponding peripheral device on the second substrate 3 are already determined at the manufacturing stage. Therefore, by the microcomputer 11 outputting the operation control signal based on the selection information, the electronic device 1 can easily cause each peripheral device on the second substrate 3 to perform a desired operation.

[0055] The present invention is not limited to the above-described embodiment, but may be modified in various ways. For example, the peripheral devices are not limited to the above configuration. For example, a sensor that measures a physical quantity and whose position needs to be specified according to the design may be connected to the second substrate 3. Also, instead of the push button switch 26, other types of switches, such as a slide switch or a rocker switch, may be included.

[0056] In the above description, multiple peripheral devices of the same type can be switched, but this is not limited to the above. Even if the peripheral devices are of different types, if the signals are the same, for example, all of them are digital signals, the selector 16 may be able to switch the connection with the microcomputer 11.

[0057] Furthermore, the position of the pointer 29 does not have to be detected using external light. For example, a light-emitting element may be provided on one side of the gear, and light from the light-emitting element that passes through a hole at a specific position on the gear may be detected by a light-receiving element located on the opposite side of the gear from the one side. In this case, the operation of the light-emitting element may be selectively switched in conjunction with the switching of the light-receiving element 23 by the selector 16.

[0058] Furthermore, the motor 22 is not limited to a stepping motor for rotating the pointer 29. For example, it may be a rotary motor with a weight for performing a notification operation by vibration.

[0059] Furthermore, the solar cell 25 may generate electricity using other materials, and accordingly may not emit light. In this case, a light emitting element such as an LED may be provided separately.

[0060] Also, in the above description, the satellite radio wave reception processing unit 14, which does not have a moving part but whose antenna position, orientation, etc. can be taken into consideration with respect to other configurations, has been described as being located on the first substrate 2. However, the satellite radio wave reception processing unit 14 may also be located on the second substrate 3.

[0061] In addition, in the above description, the electronic device 1 has been described as having a combination of one first substrate 2 and one second substrate 3, but is not limited to this. A case where a plurality of second substrates 3 are connected to one first substrate 2 is not excluded.

[0062] In addition, the above-described selector 16 can only switch between two signal wirings, but this is not limited thereto. The selector 16 may have a circuit configuration capable of switching between three or more signal wirings or selecting a part of two or more signal wirings.

[0063] In addition, although an electronic clock has been given above as an example of the electronic device 1, the electronic device 1 is not limited to this. It may be an electronic device that displays a measurement value other than the time or duration under the control of the microcomputer 11. Alternatively, the electronic device 1 may not have hands 29 or the like. When a configuration whose position or number can be changed due to design or function can be controlled by the common microcomputer 11, the configuration that can be changed with respect to the common first substrate 2 as described above may be integrated on the second substrate 3. In addition, the specific configurations, structures, signal wiring connections, functions, and operation contents shown in the above embodiments can be modified as appropriate without departing from the spirit of the present invention. The scope of the present invention includes the scope of the invention described in the claims and its equivalents. [Explanation of symbols]

[0064] 1 Electronic equipment 11 Microcomputer 111 CPU 112 RAM 12. Memory 13 Communication Module 14 Satellite radio wave receiving and processing unit 15 Oscillator Circuit 16 Selectors 17 Input / Output Ports 17a Connection pad 21 Input / Output Ports 21a Connection pad 22, 22a~22b Motor 23, 23a to 23d light receiving element 24 Operation detection unit 25 Solar Cells 26 Push Button Switch 27 Crown 28 Gear train 29 Guidelines 30 Battery 32 Light Emitting Driver Circuit

Claims

1. a first substrate including a plurality of first connection portions, a control portion, and a selector that switches a connection between the first connection portions and the control portion; a second substrate having a plurality of second connection parts connected to a plurality of operating parts each performing a certain operation; Equipped with The second connection portions are respectively connected to the first connection portions, The selector switches the first connection unit to be connected to the control unit under control of the control unit. electronic equipment.

2. The electronic device according to claim 1 , wherein the operating portion includes at least one of a motor, a photodetector, and a light-emitting element.

3. the operation unit includes a plurality of first devices of the same type, The electronic device according to claim 1 , wherein the control unit selectively connects the control unit to some of the plurality of first devices by the selector.

4. 4. The electronic device of claim 3, wherein the control unit switches between a first state in which a maximum number of first devices of the same type connected to the control unit via the first connection unit and the selector are operated, and a second state in which a number of first devices of the same type less than the maximum number are operated, using the selector.

5. A plurality of hands; and a gear train for rotating the plurality of hands in conjunction with each other, the operating unit includes a plurality of motors and a plurality of light detection elements; The gear trains corresponding to the plurality of motors are rotated in response to the operation of the plurality of motors, the plurality of light detection elements are positioned such that the amount of detected light changes when the plurality of pointers are at specific rotation positions in response to the operation of the motor; The electronic device according to claim 3 , wherein the control unit switches the selector so as to selectively acquire a light detection signal from any one of the plurality of light detection elements.

6. A plurality of hands; and a gear train for rotating the plurality of hands in conjunction with each other, The operating unit includes a plurality of motors, The gear trains corresponding to the plurality of motors are rotated in response to the operation of the plurality of motors, 4. The electronic device according to claim 3, wherein the control unit switches between a first state in which a maximum number of the motors connected to the control unit via the first connection unit and the selector are operated and a second state in which a number of the motors less than the maximum number are operated, using the selector.

7. the operating unit includes a second device used in combination with a plurality of operations; The control unit switches the selector to selectively perform one of the plurality of operations.

2. The electronic device according to claim 1.

8. the second device includes a solar cell having a power generation layer including a compound semiconductor material capable of emitting light upon application of a voltage; The control unit switches the solar cell between generating electricity and emitting light using the selector.

8. The electronic device according to claim 7.

9. a storage unit for storing selection information by the selector, the control unit controls signals on signal lines connected to the selector based on the selection information.

2. The electronic device according to claim 1.

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