Pressure sensing module control circuit and electronic equipment

Abstract

The utility model provides a pressure sensing module control circuit and electronic equipment, relates to the technical field of circuits, and can send an interrupt signal to an upper computer main control module through a lower computer main control module and an interrupt module when a pressure sensing module is triggered so as to instruct the upper computer main control module to wake up a power management control module to supply power. The pressure sensing module control circuit is simple in structure, can shorten the starting time, enables signals to be more stable, and can be used for solving the problem that the cold starting time of electronic equipment is long.

Description

Technical Field

[0001] This utility model relates to the field of circuit technology, and in particular to a pressure-sensitive module control circuit and electronic device. Background Technology

[0002] With the development of technology, electronic products have become more diverse in form and application, and their usage frequency is showing a significant upward trend. However, with this increased usage frequency, traditional mechanical buttons can no longer meet users' needs for tactile feedback and user experience. The application of pressure-sensitive modules effectively compensates for this deficiency, significantly optimizing the user experience.

[0003] When a user scans text, the pressure-sensitive module accurately senses the scanning force and speed, ensuring clear and complete scanning of the text and avoiding missed or incorrect scans. This improves the accuracy of text recognition, making word lookup and translation more efficient and smooth, and enhancing user experience. In terms of lifespan, pressure sensors, lacking complex mechanical parts, do not suffer from mechanical wear, thus theoretically having a longer lifespan and higher stability, better meeting market and user needs.

[0004] However, the introduction of pressure-sensitive modules makes the original circuit system of electronic devices more complex, making their startup circuit more complicated, resulting in longer power-on time and unstable signals. Utility Model Content

[0005] This invention provides a pressure-sensitive module control circuit and electronic device to address the deficiencies in related technologies.

[0006] This utility model provides a pressure-sensitive module control circuit, including: a lower-level main control module and an interrupt module; the lower-level main control module is connected to the interrupt module and the pressure-sensitive module respectively.

[0007] The interrupt module is connected to the host computer main control module;

[0008] The pressure-sensitive module is configured to send a pressure-sensitive signal to the lower-level main control module when triggered.

[0009] The lower-level main control module is configured to send an interrupt signal to the upper-level main control module through the interrupt module after receiving the pressure-sensitive signal; the interrupt signal is used to instruct the upper-level main control module to wake up the power management control module to supply power.

[0010] The pressure-sensitive module control circuit provided by this utility model further includes a trigger module;

[0011] The triggering module is connected to both the lower-level main control module and the upper-level main control module.

[0012] The lower-level main control module is configured to send an interaction trigger signal to the upper-level main control module through the trigger module after receiving the pressure-sensitive signal; the interaction trigger signal is used to instruct the upper-level main control module to interact with the lower-level main control module.

[0013] According to the pressure-sensitive module control circuit provided by this utility model, the trigger module includes a first resistor;

[0014] The power management control module is configured to output a controlled power signal;

[0015] The input and output terminals of the trigger module are connected, and the controlled power signal is connected through the first resistor.

[0016] According to the pressure-sensitive module control circuit provided by this utility model, the interrupt module includes a second resistor;

[0017] The input and output terminals of the interrupt module are connected, and the interrupt module is connected to the first constant power supply through the second resistor.

[0018] According to the pressure-sensitive module control circuit provided by this utility model, a third resistor and a fourth resistor are also included.

[0019] The lower-level main control module includes a serial clock pin and a serial data pin;

[0020] The serial clock pin is connected to the controlled power supply signal through the third resistor;

[0021] The serial data pin is connected to the controlled power signal through the fourth resistor.

[0022] The pressure-sensitive module control circuit provided by this utility model also includes a reset module;

[0023] The reset module is connected to both the lower-level main control module and the upper-level main control module.

[0024] The host computer main control module is configured to send a reset signal to the lower computer main control module through the reset module in response to an abnormal output of the interaction pin of the lower computer main control module or a user reset operation signal.

[0025] According to the pressure-sensitive module control circuit provided by this utility model, the reset module includes a first capacitor and a fifth resistor;

[0026] The input and output terminals of the reset module are connected, and it is connected to a second constant power supply through the first capacitor and grounded through the fifth resistor.

[0027] According to the pressure-sensitive module control circuit provided by this utility model, the reset module further includes a sixth resistor;

[0028] The input terminal of the reset module is connected to the output terminal through the sixth resistor.

[0029] According to the present invention, a pressure-sensitive module control circuit is provided, wherein the pressure-sensitive module includes a first pressure sensor and / or a second pressure sensor;

[0030] The first pressure sensor includes a first power channel and multiple first-type sensing channels. The multiple first-type sensing channels are connected one-to-one with the first-type sensing pins of the lower-level main control module. The first power channel is connected to the first power pin of the lower-level main control module.

[0031] The second pressure sensor includes a second power channel and multiple second-type sensing channels. The multiple second-type sensing channels are connected one-to-one with the second-type sensing pins of the lower-level main control module. The second power channel is connected to the second power pins of the lower-level main control module.

[0032] This utility model also provides an electronic device, including: a pressure-sensitive module, a host computer main control module, and the aforementioned pressure-sensitive module control circuit.

[0033] The pressure-sensitive module control circuit and electronic device provided by this utility model can send an interrupt signal to the host computer main control module through the lower-level main control module and the interrupt module when the pressure-sensitive module is triggered, so as to instruct the host computer main control module to wake up the power management control module to provide power. The pressure-sensitive module control circuit has a simple structure, can shorten the power-on time, make the signal more stable, and can be used to solve the problem of long cold start time of electronic devices. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the control circuit for the pressure-sensitive module provided by this utility model.

[0036] Figure 2 This is a schematic diagram of the structure of the microcontroller chip provided by this utility model.

[0037] Figure 3 This is a schematic diagram of the trigger module provided by this utility model.

[0038] Figure 4This is a schematic diagram of the interrupt module provided by this utility model.

[0039] Figure 5 This is a schematic diagram of the peripheral circuit of the microcontroller chip provided by this utility model.

[0040] Figure 6 This is a schematic diagram of the reset module provided by this utility model.

[0041] Figure 7 This is a schematic diagram of the structure of the first pressure sensor provided by this utility model.

[0042] Figure 8 This is a schematic diagram of the structure of the second pressure sensor provided by this utility model.

[0043] Figure 9 This is a schematic diagram of the structure of the electronic device provided by this utility model. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0045] Because the circuit systems supporting pressure-sensitive modules in existing technologies are relatively complex, their startup circuits are also quite complex, resulting in prolonged power-on time and unstable signals. Therefore, this utility model provides a pressure-sensitive module control circuit.

[0046] Figure 1 This is a schematic diagram of the structure of a pressure-sensitive module control circuit provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the pressure-sensitive module control circuit includes: a lower-level main control module 1 and an interrupt module 2, with the lower-level main control module 1 connected to the interrupt module 2 and the pressure-sensitive module 3 respectively;

[0047] Interrupt module 2 is connected to host computer main control module 4;

[0048] Pressure sensing module 3 is configured to send a pressure sensing signal to the lower-level main control module 1 when triggered;

[0049] The lower-level main control module 1 is configured to send an interrupt signal to the upper-level main control module through the interrupt module 2 after receiving the pressure sensing signal; the interrupt signal is used to instruct the upper-level main control module 4 to wake up the power management controller (PMC) module to supply power.

[0050] Specifically, in the pressure-sensitive module control circuit provided in this embodiment of the present invention, the lower-level main control module 1 can be a programmable microcontroller chip U1, and the structure of the microcontroller chip U1 is as follows: Figure 2 As shown, it can include 33 pins, namely VDD, VS_CAP, AIN16, AIN17, AIN13, AIN9, AIN12, AIN7, AIN6, AIN8, AIN11, AIN10, AIN5, PA5 / AIN9, PA4 / AIN18, AIN3, PA11 / SDA / RX, AIN2, PA1 / AIN1, PA0 / AIN0, PA7 / AIN4, PA2 / TX, PA10 / SCL / TX, PA6, PA3 / RX, TESTEN, RST, PB1, SWDIO / PB5 / PWM / TIMO_CH, PB0 / VS0, SWCLK / PB4 / MCO, LDO_CAP, and GND, with pin numbers 1-33.

[0051] The lower-level main control module 1 can be connected to the input terminal of the interrupt module 2 through the PA2 / TX pin, i.e., pin 22, and can be connected to the pressure sensing module 3 through at least one of the following pins: AIN13, AIN9, AIN12, AIN7, AIN6, AIN8, AIN11, AIN10, PA4 / AIN18, AIN3, AIN2, PA1 / AIN1, PA0 / AIN0, PA7 / AIN4, i.e., at least one of the following pins: pins 5-12, 15-16, 18-21.

[0052] The host computer main control module 4 can be the main control chip of the electronic device used in the pressure sensing module control circuit, and may include a nonmaskable interrupt (NMI) pin. The output of the interrupt module 2 can be connected to the NMI pin of the host computer main control module 4. The host computer main control module 4 may have a built-in power management controller (PMC) module, which can provide power to the electronic device when the PMC module is woken up.

[0053] When the pressure-sensitive module 3 is triggered, it can send a pressure-sensitive signal to the lower-level main control module 1. The pressure-sensitive signal can include at least one signal from at least one of the following channels: S1-, S1+, S2-, S2+, S3-, S3+, S4-, S4+, S5-, S5+, S6-, S6+, S7-, and S7+.

[0054] After receiving the pressure sensing signal, the lower-level main control module 1 can send an interrupt signal to the upper-level main control module 4 via the interrupt module 2. This interrupt signal instructs the upper-level main control module 4 to wake up the built-in PMC module for power supply. This interrupt signal can be a low-level signal; that is, the lower-level main control module 1 can be programmed to have the PA2 / TX pin at a default high level. When the pressure sensing module 3 is triggered, the PA2 / TX pin is at a low level, and the interrupt module 2 sends a low-level signal (i.e., an interrupt signal) to the upper-level main control module 4, which then wakes up the PMC module for power supply.

[0055] Subsequently, the lower-level main control module 1 can send an interaction trigger signal to the upper-level main control module 4, notifying the upper-level main control module 4 to start working on the pressure-sensitive module. This allows the upper-level main control module 4 to interact with the lower-level main control module, enabling data transmission. The interaction trigger signal can be a low-level signal.

[0056] The pressure-sensitive module control circuit provided in this embodiment can send an interrupt signal to the host computer main control module through the lower-level main control module and the interrupt module when the pressure-sensitive module is triggered, so as to instruct the host computer main control module to wake up the power management control module to provide power. This pressure-sensitive module control circuit has a simple structure, can shorten the power-on time, make the signal more stable, and can be used to solve the problem of long cold start time in electronic devices.

[0057] Based on the above embodiments, the pressure-sensitive module control circuit also includes a trigger module;

[0058] The trigger module is connected to both the lower-level main control module and the upper-level main control module.

[0059] The lower-level main control module is configured to send an interactive trigger signal to the upper-level main control module through the trigger module after receiving the pressure sensing signal; the interactive trigger signal is used to instruct the upper-level main control module to interact with the lower-level main control module.

[0060] Specifically, the lower-level main control module can connect to the trigger module through the PA6 pin, i.e., pin 24, to send interactive trigger signals to the trigger module, and the trigger module will then output the interactive trigger signals to the upper-level main control module.

[0061] After receiving the trigger signal, the host computer main control module determines that the pressure sensing module has started working, and then interacts with the slave computer main control module to realize data transmission.

[0062] In this embodiment of the invention, by sending an interactive trigger signal to the host computer main control module through the trigger module, the interactive trigger signal received by the host computer main control module can be made more stable.

[0063] Based on the above embodiments, such as Figure 3As shown, the trigger module includes a first resistor R17;

[0064] The PMC module is configured to output a controlled power signal VCC-IO;

[0065] The input and output terminals of the trigger module are connected. The input terminal of the trigger module is used to receive the interactive trigger signal PRESS-KEY1 sent by the lower-level main control module 1, and the output terminal of the trigger module is used to send the interactive trigger signal PRESS-KEY2 to the upper-level main control module. The interactive trigger signal PRESS-KEY1 and the interactive trigger signal PRESS-KEY2 can be the same, that is, both are low-level signals.

[0066] The input terminal of the trigger module is connected to the controlled power supply signal VCC-IO through the first resistor R17.

[0067] In this embodiment of the invention, the input and output terminals of the trigger module can be pulled up to a high level by the first resistor, which avoids the trigger module from continuously receiving and outputting low-level interactive trigger signals, making the circuit performance more stable and reducing circuit power consumption.

[0068] Based on the above embodiments, such as Figure 4 As shown, the interrupt module includes a second resistor R18;

[0069] The input and output terminals of the interrupt module are connected. The input terminal of the interrupt module is used to receive the interrupt signal PRE_INT sent by the lower-level main control module 1, and the output terminal of the interrupt module is used to send the interrupt signal PRE_IO_NMI to the upper-level main control module.

[0070] The input terminal of the interrupt module is connected to the first constant power supply VCC18-RTC through the second resistor R18. The voltage level of the first constant power supply VCC18-RTC can be 1.8V, which is used to power the main functions of the host computer main control module.

[0071] In addition, a resistor R22 is connected between the input and output terminals of the interrupt module to control the magnitude of the interrupt signal PRE_IO_NMI output to the host computer main control module.

[0072] In this embodiment of the invention, the second resistor can pull the input and output terminals of the interrupt module to a high level, reducing circuit power consumption, preventing the interrupt module from continuously receiving and outputting interrupt signals, and making the circuit performance more stable.

[0073] Based on the above embodiments, the peripheral circuit of the microcontroller chip U1 can be as follows: Figure 5 As shown, the pressure-sensitive module control circuit also includes a third resistor R11 and a fourth resistor R12;

[0074] The lower-level main control module 1 includes a serial clock pin (i.e., PA10 / SCL / TX pin) and a serial data pin (i.e., PA11 / SDA / RX pin).

[0075] The serial clock pin is connected to the controlled power supply signal VCC-IO through the third resistor R11. The serial clock pin can exchange the serial clock signal SENSOR_SCL with the host computer main control module.

[0076] The serial data pin is connected to the controlled power supply signal VCC-IO through the fourth resistor R12. The serial data pin can exchange the serial data signal SENSOR_SDA with the host computer main control module.

[0077] In this embodiment of the invention, the lower-level main control module and the upper-level main control module can communicate via IIC through the serial clock pin and the serial data pin.

[0078] like Figure 5 As shown, pin PA6 of the lower-level main control module 1 is also connected to resistor R13, and the serial clock pin and serial data pin are connected to resistors R14 and R15 respectively. The VDD pin of the lower-level main control module 1 is the power supply pin, connected to the second constant power supply VCC_3V3 through resistor R10, and grounded through capacitors C6 and C7. Here, the voltage level of the second constant power supply VCC_3V3 can be 3.3V.

[0079] The VS_CAP pin of the lower-level main control module 1 is a voltage capacitor pin, which is grounded through capacitor C8. The LDO_CAP pin of the lower-level main control module 1 is the output terminal of the on-chip low dropout regulator (LDO), which is grounded through capacitors C4 and C5 respectively.

[0080] Based on the above embodiments, the pressure-sensitive module control circuit also includes a reset module;

[0081] The reset module is connected to both the lower-level main control module and the upper-level main control module.

[0082] The host computer main control module is configured to send a reset signal to the lower computer main control module through the reset module in response to abnormal output of the interaction pin of the lower computer main control module or user reset operation signal.

[0083] Specifically, such as Figure 5As shown, the lower-level main control module can be connected to the reset module via the RST pin. When the upper-level main control module determines that the lower-level main control module's interactive pin output is abnormal, or when it receives a user reset operation signal, it can send a reset signal PRE_RST to the reset module, which then sends a reset signal RST to the lower-level main control module. Here, the user reset operation signal can be triggered by operating a combination key on the electronic device. The composition of the combination key can be set as needed and is not specifically limited here.

[0084] In this embodiment of the invention, the host computer main control module can reset and restart the slave computer main control module through the reset module.

[0085] Based on the above embodiments, such as Figure 6 As shown, the reset module includes a first capacitor C9 and a fifth resistor R20;

[0086] The input and output terminals of the reset module are connected. The input terminal of the reset module is used to receive the reset signal PRE_RST sent by the host computer main control module 4, and the output terminal of the reset module is used to send the reset signal RST to the lower computer main control module.

[0087] The input terminal of the reset module is also connected to the second constant power supply VCC_3V3 through the first capacitor C9, and grounded through the fifth resistor R20.

[0088] In this embodiment of the invention, the input and output terminals of the reset module can be set to low level by default through the first capacitor and the fifth resistor, thereby reducing circuit power consumption, preventing the reset module from continuously receiving and outputting reset signals, and making the circuit performance more stable.

[0089] Based on the above embodiments, the reset module also includes a sixth resistor R19;

[0090] The input terminal of the reset module is connected to the output terminal through the sixth resistor R19. The sixth resistor R19 controls the magnitude of the reset signal RST output to the lower-level main control module.

[0091] Based on the above embodiments, the pressure sensing module includes a first pressure sensor and / or a second pressure sensor;

[0092] The first pressure sensor includes a first power channel and multiple first-type sensing channels. The multiple first-type sensing channels are connected one-to-one with the first-type sensing pins of the lower-level main control module. The first power channel is connected to the first power pin of the lower-level main control module.

[0093] The second pressure sensor includes a second power supply channel and multiple second-type sensing channels. The multiple second-type sensing channels are connected one-to-one with the second-type sensing pins of the lower-level main control module, and the second power supply channel is connected to the second power supply pins of the lower-level main control module.

[0094] Specifically, Figure 7 This is a schematic diagram of the structure of the first pressure sensor, which includes 10 pins, of which pins 1-6 are the first type of sensing channels, and pin 7 is the first power supply channel.

[0095] On the lower-level main control module, pins 5-10 are all first-type sensing pins. Pins 1-6 of the first pressure sensor are connected one-to-one with pins 5-10 on the lower-level main control module, respectively, to transmit signals from channels S1-, S1+, S2-, S2+, S3-, and S3+.

[0096] Pin 7 of the first pressure sensor is connected to pin 30 of the lower-level main control module so that the lower-level main control module provides the first power supply signal VS0 to the first pressure sensor.

[0097] Pins 8-10 of the first pressure sensor are all grounded.

[0098] Figure 8 This is a schematic diagram of the second pressure sensor, which includes 12 pins, of which pins 1-8 are the first type of sensing channels, and pin 9 is the second power supply channel.

[0099] On the lower-level main control module, pins 11-12, 21-20, 15-16, 18, and 19 are all second-type sensing pins. Pins 1-8 of the second pressure sensor are connected one-to-one with pins 11-12, 21-20, 15-16, 18, and 19 on the lower-level main control module, respectively, and are used to transmit signals from channels S4-, S4+, S7-, S7+, S5-, S5+, S6-, and S6+.

[0100] Pin 9 of the second pressure sensor is connected to pin 28 on the lower-level main control module so that the lower-level main control module provides a second power supply signal VS1 to the second pressure sensor.

[0101] Pins 10-12 of the second pressure sensor are all grounded.

[0102] In this embodiment of the invention, the pressure sensing module may include only a first pressure sensor, only a second pressure sensor, or both a first pressure sensor and a second pressure sensor.

[0103] When the pressure-sensitive module is triggered, the PA6 pin of the lower-level main control module is pulled low, and after internal processing, a low-level signal is sent to the PA2 pin, which in turn sends a low-level signal to the NMI pin of the upper-level main control module. When the NMI pin of the upper-level main control module detects the low-level signal, it wakes up the internal PMC module, thereby enabling the electronic device to output system power and start up normally. When the pressure-sensitive module malfunctions, it can be reset by the upper-level main control module automatically sending a high-level signal to the RST pin of the lower-level main control module, or by a user reset operation triggering a user reset signal to send a high-level signal to the RST pin of the lower-level main control module.

[0104] In this embodiment of the invention, a programmable lower-level main control module controls the sending of a low-level signal to power on the electronic device connected to the upper-level main control module. This allows the upper-level main control module, which has a power management control module, to manage and control the power supply of the system in conjunction with external circuitry. This avoids the problems of complexity and unstable signals in building ordinary fast-start circuits, enabling the electronic device to power on quickly and perform functional operations.

[0105] Figure 9 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present utility model, such as... Figure 9 As shown, the electronic device may include: a pressure-sensitive module 3, a host computer main control module 4, and a pressure-sensitive module control circuit 5 provided in the above embodiments. The pressure-sensitive module 3 can be connected to the lower-level main control module and the interrupt module in the pressure-sensitive module control circuit 5, respectively. The host computer main control module 4 can be connected to at least one of the interrupt module, trigger module, and reset module in the pressure-sensitive module control circuit 5 to realize the corresponding functions.

[0106] This electronic device can be a smart device with an integrated pressure-sensitive module, such as a dictionary pen. By introducing a pressure-sensitive module control circuit, it can be quickly powered on and put into operation.

[0107] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0108] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of software products. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pressure-sensitive module control circuit, characterized in that, include: The lower-level main control module and the interrupt module are respectively connected to the interrupt module and the pressure sensing module. The interrupt module is connected to the host computer main control module; The pressure-sensitive module is configured to send a pressure-sensitive signal to the lower-level main control module when triggered. The lower-level main control module is configured to send an interrupt signal to the upper-level main control module through the interrupt module after receiving the pressure-sensitive signal; the interrupt signal is used to instruct the upper-level main control module to wake up the power management control module to supply power.

2. The pressure-sensitive module control circuit according to claim 1, characterized in that, It also includes a trigger module; The triggering module is connected to both the lower-level main control module and the upper-level main control module. The lower-level main control module is configured to send an interaction trigger signal to the upper-level main control module through the trigger module after receiving the pressure-sensitive signal; the interaction trigger signal is used to instruct the upper-level main control module to interact with the lower-level main control module.

3. The pressure-sensitive module control circuit according to claim 2, characterized in that, The triggering module includes a first resistor; The power management control module is configured to output a controlled power signal; The input and output terminals of the trigger module are connected, and the controlled power signal is connected through the first resistor.

4. The pressure-sensitive module control circuit according to claim 1, characterized in that, The interrupt module includes a second resistor; The input and output terminals of the interrupt module are connected, and the interrupt module is connected to the first constant power supply through the second resistor.

5. The pressure-sensitive module control circuit according to claim 3, characterized in that, It also includes a third resistor and a fourth resistor; The lower-level main control module includes a serial clock pin and a serial data pin; The serial clock pin is connected to the controlled power supply signal through the third resistor; The serial data pin is connected to the controlled power signal through the fourth resistor.

6. The pressure-sensitive module control circuit according to claim 1, characterized in that, It also includes a reset module; The reset module is connected to both the lower-level main control module and the upper-level main control module. The host computer main control module is configured to send a reset signal to the lower computer main control module through the reset module in response to an abnormal output of the interaction pin of the lower computer main control module or a user reset operation signal.

7. The pressure-sensitive module control circuit according to claim 6, characterized in that, The reset module includes a first capacitor and a fifth resistor; The input and output terminals of the reset module are connected, and it is connected to a second constant power supply through the first capacitor and grounded through the fifth resistor.

8. The pressure-sensitive module control circuit according to claim 7, characterized in that, The reset module also includes a sixth resistor; The input terminal of the reset module is connected to the output terminal through the sixth resistor.

9. The pressure-sensitive module control circuit according to any one of claims 1-8, characterized in that, The pressure-sensitive module includes a first pressure sensor and / or a second pressure sensor; The first pressure sensor includes a first power channel and multiple first-type sensing channels. The multiple first-type sensing channels are connected one-to-one with the first-type sensing pins of the lower-level main control module. The first power channel is connected to the first power pin of the lower-level main control module. The second pressure sensor includes a second power channel and multiple second-type sensing channels. The multiple second-type sensing channels are connected one-to-one with the second-type sensing pins of the lower-level main control module. The second power channel is connected to the second power pins of the lower-level main control module.

10. An electronic device, characterized in that, include: The pressure-sensitive module, the host computer main control module, and the pressure-sensitive module control circuit as described in any one of claims 1-9.

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