Automobile instrument chip power supply control method, device, electronic device and storage medium

Abstract

The present invention provides a method, device, electronic device, and storage medium for controlling the power supply of an automotive instrument chip. These methods, based on a preset configuration and corresponding pin control parameters, can generate a timing control signal for the current power supply state of the automotive instrument, and control the corresponding pins via the timing control signal to achieve the purpose of controlling the power-on and power-off timing of the SOC. The method has excellent versatility and can be applied to any dual-chip system. When requirements change, only configuration modification is required to quickly respond. The method is convenient, practical, and applicable to complex power management scenarios.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle-mounted terminals, and in particular relates to a method and device for controlling the power supply of an automobile instrument chip, an electronic device, and a storage medium. Background Art

[0002] With the rapid advancement of technology and the growing demand for automotive entertainment systems, automotive instrument cluster entertainment systems are becoming increasingly powerful, while the overall system complexity is also increasing. Older automotive instrument clusters typically contain only a single chip for logic processing and screen display. Due to performance limitations, these instruments have limited functionality and are no longer suitable for the current market environment. Furthermore, since they only have one chip, they do not require power management. Current cutting-edge automotive instrument clusters and smart cockpit projects typically contain two chips. The main chip A (such as the MCU) is used to communicate with the vehicle body, access the CAN network, and control the power-up and power-down of the entire instrument cluster system based on the CAN network status. The other chip B (such as the SOC) is typically used for the HMI display. When the vehicle is turned on, chip A must be powered on according to a specific power-up sequence to ensure that chip B can start normally. When the vehicle is in sleep mode, chip A must be powered off according to a specific power-down sequence to ensure that chip B can power down normally.

[0003] Existing power management technology solutions usually design a state machine to control pin levels in different states. This approach has poor versatility and cannot be applied to multiple platforms. The logic is complex and difficult to modify when requirements change. It also cannot handle complex power management (when there are many pins to control, the code is difficult to write, the code structure is unclear, and it is very error-prone). Summary of the Invention

[0004] Based on this, in order to solve the above technical problems, a method, device, electronic device and storage medium for controlling the power supply of an automobile instrument chip are provided.

[0005] The technical solution adopted in the present invention is as follows:

[0006] As a first aspect of the present invention, a method for controlling a power supply of an automobile instrument chip is provided, which is applied to a control chip of the automobile instrument and is characterized by comprising:

[0007] Determine the current power supply status of the vehicle instrument, wherein the power supply status includes a power-on state, a power-on display state, a power-off display state, and a power-off state;

[0008] Parsing a preset configuration and matching corresponding pin control parameters according to the current power supply state of the vehicle instrument, wherein the preset configuration adopts a structured data structure, and the pin control parameters include a pin control mode, a sub-state, a pin to be controlled corresponding to the sub-state, the number of pins to be controlled corresponding to the sub-state, the level of the pin to be controlled, the time interval between sub-states, the PWM period, and the PWM duty cycle; the pin control mode is level control or PWM control;

[0009] Generate timing control signals according to the matched pin control parameters;

[0010] The corresponding pins are controlled by the timing control signal.

[0011] As a second aspect of the present invention, there is provided an automotive instrument chip power supply control device, characterized by comprising:

[0012] A power supply status determination module is used to determine the current power supply status of the vehicle instrument, wherein the power supply status includes a power-on state, a power-on display state, a power-off display state, and a power-off state;

[0013] a pin control parameter determination module, configured to parse a preset configuration and match corresponding pin control parameters according to the current power supply state of the vehicle instrument; the preset configuration adopts a structured data structure; the pin control parameters include a pin control mode, a sub-state, a pin to be controlled corresponding to the sub-state, the number of pins to be controlled corresponding to the sub-state, the level of the pin to be controlled, the time interval between sub-states, the PWM period, and the PWM duty cycle; the pin control mode is either level control or PWM control;

[0014] A signal generation module is used to generate a timing control signal according to the matched pin control parameters;

[0015] The pin control module is used to control the corresponding pin through the timing control signal.

[0016] As a third aspect of the present invention, an electronic device is provided, comprising a storage module, wherein the storage module comprises instructions loaded and executed by a processor, wherein when the instructions are executed, the processor executes the automobile instrument chip power control method according to the first aspect.

[0017] As a fourth aspect of the present invention, a computer-readable storage medium is provided, which stores one or more programs. When the one or more programs are executed by a processor, the method for controlling the power supply of an automobile instrument chip according to the first aspect is implemented.

[0018] The present invention can generate a timing control signal with corresponding pin control parameters according to the preset configuration and the current power supply state of the automobile instrument, and control the corresponding pins through the timing control signal to achieve the purpose of controlling the power-on and power-off timing of the SOC. It has good versatility and can be applied to any dual-chip system. When the demand changes, it can be quickly responded to by modifying the configuration. It is convenient, practical, and applicable to complex power management scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 A flow chart of a method for controlling a power supply of an automobile instrument chip provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a car instrument chip power supply control device provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of an electronic device provided in an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the application environment of an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The following will illustrate the implementation of the present invention in conjunction with the drawings in the specification. It should be noted that the implementation methods involved in this specification are not exhaustive and do not represent the only implementation methods of the present invention. The following corresponding embodiments are only for the purpose of clearly illustrating the invention content of the patent of this invention and are not intended to limit its implementation methods. For ordinary technicians in this field, different forms of changes and modifications can be made based on the description of this embodiment. Any obvious changes or modifications that belong to the technical concept and invention content of the present invention are also within the scope of protection of the present invention.

[0025] Figure 4 The application environment of an embodiment of the present invention is shown, including an MCU and a SOC chip for an automotive instrument. Multiple pins of the MCU are electrically connected to multiple pins of the SOC through switching circuits, and a power supply is connected to each switching circuit. The automotive instrument chip power supply control method provided by an embodiment of the present invention is applied to the MCU to control the pins of the MCU to open different switching circuits, so that the power supply is sequentially connected to different pins of the SOC, thereby achieving the purpose of controlling the power-on and power-off timing of the SOC.

[0026] like Figure 1 As shown, the specific process of the method of the embodiment of the present invention is as follows:

[0027] S101, determining the current power supply status of the vehicle instrument: the current power supply status of the vehicle instrument can be obtained through the vehicle CAN bus.

[0028] In this embodiment, the power state (PowerState) includes a power-on state (ePowerCdd_PowerUp), a power-on display state (ePowerCdd_PowerUp_Display), a power-off display state (ePowerCdd_PowerDown_Display), and a power-off state (ePowerCdd_PowerDown).

[0029] S102: Analyze the preset configuration and match the corresponding pin control parameters according to the current power supply status of the vehicle instrument.

[0030] In this embodiment, the pin control parameters include the pin control mode (PinSelection), the substate (SubState), the pin to be controlled corresponding to the substate (Dio_Pin), the number of pins to be controlled corresponding to the substate (NumberOfParellelExecution), the level of the pin to be controlled (Dio_Pin_Level), the time interval between substates (WaitTime), the PWM period (Pwm_Period) and the PWM duty cycle (Pwm_Duty). The pin control mode is level control or PWM control.

[0031] In one power supply state, multiple substates (SubState) can be defined. One substate can correspond to one or more pins. If it corresponds to multiple pins, it means that these pins are started together.

[0032] For example, the above preset configuration adopts a structure data structure, which is as follows:

[0033] typedef struct

[0034] {

[0035] EPowerState PowerState; / * Represent the power state.* /

[0036] EPowerSubState SubState / * Represent the Sub state* /

[0037] boolean PinSelection; / * Select whether DIO or PWM * /

[0038] uint16 Dio_Pin; / * DIO pin channel * /

[0039] Dio_LevelType Dio_Pin_Level; / * DIO pin Level - HIGH / LOW * /

[0040] uint8 NumberOfParellelExecution Represent the number of ParellelExecution of power sequence * /

[0041] uint16 WaitTime; / * represent the wait time required to activate the next * /

[0042] uint16 Pwm_Period; / * PWM period Count Value * /

[0043] uint16 Pwm_Duty; / * PWM Duty Count Value * /

[0044] }SPowerSequence;

[0045] S103: Generate a timing control signal according to the matched pin control parameters.

[0046] S104. Control the corresponding pins through the timing control signal.

[0047] Taking the two sub-states (ePowerCdd_SubState_CAN and ePowerCdd_SubState_SPI) under the power-up state (ePowerCdd_PowerUp) as an example, in order to achieve the purpose of first controlling the four pins corresponding to the ePowerCdd_SubState_CAN sub-state in the power-up state, and then controlling the two pins corresponding to the ePowerCdd_SubState_SPI sub-state after an interval of 1ms, the specific configuration content is as follows:

[0048] {\

[0049] ePowerCdd_PowerUp,\ / *Power-on status* /

[0050] ePowerCdd_SubState_CAN,\ / *Substate* /

[0051] FALSE,\ / *FALSE represents level control, TRUE represents PWM control* /

[0052] eIO_DOUT_DO_SIP_BUCK_MAIN_3V3_EN,\ / *Pin name* /

[0053] STD_HIGH,\ / *represents high level* /

[0054] 4u,\ / * represents the number of pins in the sub-state* /

[0055] 1u,\ / * represents the interval between sub-states, 1ms* /

[0056] },\

[0057] {\

[0058] ePowerCdd_PowerUp,\

[0059] ePowerCdd_SubState_CAN,\

[0060] FALSE,\

[0061] eIO_DOUT_DO_VIP_SMPS_CAN_5V_EN,\ / *pin name* /

[0062] STD_HIGH,\

[0063] 0u,\ / *The number of pins for the sub-state has been configured above, so it is 0 here* /

[0064] 0u,\ / *The interval between sub-states has been configured above, so it is 0 here* /

[0065] },\

[0066] {\

[0067] ePowerCdd_PowerUp,\

[0068] ePowerCdd_SubState_CAN,\

[0069] FALSE,\

[0070] eIO_DOUT_DO_VIP_VBAT_SW_EN,\

[0071] STD_HIGH,\

[0072] 0u,\

[0073] 0u,\

[0074] },\

[0075] {\

[0076] ePowerCdd_PowerUp,\

[0077] ePowerCdd_SubState_CAN,\

[0078] FALSE,\

[0079] eIO_DOUT_DO_VIP_PBATT_SW_EN_FOR_PULL_UP,\

[0080] STD_HIGH,\

[0081] 0u,\

[0082] 0u,\

[0083] },\

[0084] {\

[0085] ePowerCdd_PowerUp,\

[0086] ePowerCdd_SubState_SPI,\

[0087] FALSE,\

[0088] eIO_DOUT_DO_VIP_QC_KPD_PWR,\

[0089] STD_HIGH,\

[0090] 2u,\

[0091] 1u,\

[0092] },\

[0093] {\

[0094] ePowerCdd_PowerUp,\

[0095] ePowerCdd_SubState_SPI,\

[0096] FALSE,\

[0097] eIO_DOUT_DO_VIP_QC_CBL_PWR,\

[0098] STD_HIGH,\

[0099] 0u,\

[0100] 0u,\

[0101] },\

[0102] It can be seen that the embodiment of the present invention can generate a timing control signal with corresponding pin control parameters according to the preset configuration and the current power supply state of the automobile instrument, and control the corresponding pins through the timing control signal to achieve the purpose of controlling the power-on and power-off timing of the SOC. It has good versatility and can be applied to any dual-chip system. When the demand changes, it can be quickly responded to by modifying the configuration. It is convenient, practical, and applicable to complex power management scenarios.

[0103] The following describes in detail one or more embodiments of the automotive instrument chip power control device of the present invention. Those skilled in the art will understand that these control devices can be constructed using commercially available hardware components and configured according to the steps taught in this solution. Figure 2 An embodiment of the present invention provides a car instrument chip power supply control device, such as Figure 2 As shown, the control device includes a power supply state determination module 11 , a pin control parameter determination module 12 , a signal generation module 13 and a pin control module 14 .

[0104] The power supply status determination module 11 is used to determine the current power supply status of the vehicle instrument: the current power supply status of the vehicle instrument can be obtained through the vehicle CAN bus.

[0105] In this embodiment, the power state (PowerState) includes a power-on state (ePowerCdd_PowerUp), a power-on display state (ePowerCdd_PowerUp_Display), a power-off display state (ePowerCdd_PowerDown_Display), and a power-off state (ePowerCdd_PowerDown).

[0106] The pin control parameter determination module 12 is used to analyze the preset configuration and match the corresponding pin control parameters according to the current power supply status of the vehicle instrument.

[0107] In this embodiment, the pin control parameters include the pin control mode (PinSelection), the substate (SubState), the pin to be controlled corresponding to the substate (Dio_Pin), the number of pins to be controlled corresponding to the substate (NumberOfParellelExecution), the level of the pin to be controlled (Dio_Pin_Level), the time interval between substates (WaitTime), the PWM period (Pwm_Period) and the PWM duty cycle (Pwm_Duty). The pin control mode is level control or PWM control.

[0108] In one power supply state, multiple substates (SubState) can be defined. One substate can correspond to one or more pins. If it corresponds to multiple pins, it means that these pins are started together.

[0109] For example, the above preset configuration adopts a structure data structure, which is as follows:

[0110] typedef struct

[0111] {

[0112] EPowerState PowerState; / * Represent the power state.* /

[0113] EPowerSubState SubState / * Represent the Sub state* /

[0114] boolean PinSelection; / * Select whether DIO or PWM * /

[0115] uint16 Dio_Pin; / * DIO pin channel * /

[0116] Dio_LevelType Dio_Pin_Level; / * DIO pin Level - HIGH / LOW * /

[0117] uint8 NumberOfParellelExecution Represent the number of ParellelExecution of power sequence * /

[0118] uint16 WaitTime; / *represent the wait time required to activate the next * /

[0119] uint16 Pwm_Period; / * PWM period Count Value * /

[0120] uint16 Pwm_Duty; / * PWM Duty Count Value * /

[0121] }SPowerSequence;

[0122] The signal generating module 13 is configured to generate a timing control signal according to the matched pin control parameters.

[0123] The pin control module 14 is configured to control corresponding pins through timing control signals.

[0124] Taking the two sub-states (ePowerCdd_SubState_CAN and ePowerCdd_SubState_SPI) under the power-up state (ePowerCdd_PowerUp) as an example, in order to achieve the purpose of first controlling the four pins corresponding to the ePowerCdd_SubState_CAN sub-state in the power-up state, and then controlling the two pins corresponding to the ePowerCdd_SubState_SPI sub-state after an interval of 1ms, the specific configuration content is as follows:

[0125] {\

[0126] ePowerCdd_PowerUp,\ / *Power-on status* /

[0127] ePowerCdd_SubState_CAN,\ / *Substate* /

[0128] FALSE,\ / *FALSE represents level control, TRUE represents PWM control* /

[0129] eIO_DOUT_DO_SIP_BUCK_MAIN_3V3_EN,\ / *Pin name* /

[0130] STD_HIGH,\ / *represents high level* /

[0131] 4u,\ / * represents the number of pins in the sub-state* /

[0132] 1u,\ / * represents the interval between sub-states, 1ms* /

[0133] },\

[0134] {\

[0135] ePowerCdd_PowerUp,\

[0136] ePowerCdd_SubState_CAN,\

[0137] FALSE,\

[0138] eIO_DOUT_DO_VIP_SMPS_CAN_5V_EN,\ / *pin name* /

[0139] STD_HIGH,\

[0140] 0u,\ / *The number of pins for the sub-state has been configured above, so it is 0 here* /

[0141] 0u,\ / *The interval between sub-states has been configured above, so it is 0 here* /

[0142] },\

[0143] {\

[0144] ePowerCdd_PowerUp,\

[0145] ePowerCdd_SubState_CAN,\

[0146] FALSE,\

[0147] eIO_DOUT_DO_VIP_VBAT_SW_EN,\

[0148] STD_HIGH,\

[0149] 0u,\

[0150] 0u,\

[0151] },\

[0152] {\

[0153] ePowerCdd_PowerUp,\

[0154] ePowerCdd_SubState_CAN,\

[0155] FALSE,\

[0156] eIO_DOUT_DO_VIP_PBATT_SW_EN_FOR_PULL_UP,\

[0157] STD_HIGH,\

[0158] 0u,\

[0159] 0u,\

[0160] },\

[0161] {\

[0162] ePowerCdd_PowerUp,\

[0163] ePowerCdd_SubState_SPI,\

[0164] FALSE,\

[0165] eIO_DOUT_DO_VIP_QC_KPD_PWR,\

[0166] STD_HIGH,\

[0167] 2u,\

[0168] 1u,\

[0169] },\

[0170] {\

[0171] ePowerCdd_PowerUp,\

[0172] ePowerCdd_SubState_SPI,\

[0173] FALSE,\

[0174] eIO_DOUT_DO_VIP_QC_CBL_PWR,\

[0175] STD_HIGH,\

[0176] 0u,\

[0177] 0u,\

[0178] },\

[0179] In summary, the automobile instrument chip power control device provided in the above embodiments can execute the automobile instrument chip power control method provided in the above embodiments.

[0180] The same concept as above, Figure 2 The structure of the automobile instrument chip power control device shown can be realized as an electronic device. Figure 3 A schematic block diagram of the structure of an electronic device provided by an embodiment of the present invention is shown.

[0181] Exemplarily, the electronic device includes a storage module 21 and a processor 22, the storage module 21 includes instructions loaded and executed by the processor 22, and when the instructions are executed, the processor 22 performs the steps according to various exemplary embodiments of the present invention described in the above-mentioned automobile instrument chip power control method section of this specification.

[0182] It should be understood that the processor 22 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0183] An embodiment of the present invention further provides a computer-readable storage medium that stores one or more programs. When the one or more programs are executed by a processor, the steps of various exemplary embodiments of the present invention described in the above-mentioned automobile instrument chip power supply control method are implemented.

[0184] It will be understood by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable storage medium, which may include a computer-readable storage medium (or a non-transitory medium) and a communication medium (or a temporary medium).

[0185] As is well known to those skilled in the art, the term computer-readable storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer-readable storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and that can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically contains computer-readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0186] For example, the computer-readable storage medium may be an internal storage unit of the electronic device of the aforementioned embodiment, such as a hard disk or memory of the electronic device. The computer-readable storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc., provided on the electronic device.

[0187] The electronic device and computer-readable storage medium provided in the aforementioned embodiments can generate a timing control signal with corresponding pin control parameters according to a preset configuration for the current power supply state of the automobile instrument, and control the corresponding pins through the timing control signal to achieve the purpose of controlling the power-on and power-off timing of the SOC. It has good versatility and can be applied to any dual-chip system. When the demand changes, it can be quickly responded to by modifying the configuration. It is convenient, practical, and applicable to complex power management scenarios.

[0188] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include these modifications and variations.

Claims

1. A method for controlling the power supply of an automobile instrument chip, applied to the control chip of the automobile instrument, characterized in that: include: Determine the current power supply status of the vehicle instrument, wherein the power supply status includes a power-on state, a power-on display state, a power-off display state, and a power-off state; Parsing a preset configuration and matching corresponding pin control parameters according to the current power supply state of the vehicle instrument, wherein the preset configuration adopts a structured data structure, and the pin control parameters include a pin control mode, a sub-state, a pin to be controlled corresponding to the sub-state, the number of pins to be controlled corresponding to the sub-state, the level of the pin to be controlled, the time interval between sub-states, the PWM period, and the PWM duty cycle; the pin control mode is level control or PWM control; Generate timing control signals according to the matched pin control parameters; The corresponding pins are controlled by the timing control signal.

2. The method for controlling the power supply of an automobile instrument chip according to claim 1, characterized in that: The determining of the current power supply status of the vehicle instrument further includes: Get the current power supply status of the vehicle instrument through the vehicle CAN bus.

3. An automotive instrument chip power control device, characterized in that: include: A power supply status determination module is used to determine the current power supply status of the vehicle instrument, wherein the power supply status includes a power-on state, a power-on display state, a power-off display state, and a power-off state; a pin control parameter determination module, configured to parse a preset configuration and match corresponding pin control parameters according to the current power supply state of the vehicle instrument; the preset configuration adopts a structured data structure; the pin control parameters include a pin control mode, a sub-state, a pin to be controlled corresponding to the sub-state, the number of pins to be controlled corresponding to the sub-state, the level of the pin to be controlled, the time interval between sub-states, the PWM period, and the PWM duty cycle; the pin control mode is either level control or PWM control; A signal generation module is used to generate a timing control signal according to the matched pin control parameters; The pin control module is used to control the corresponding pin through the timing control signal.

4. An electronic device, characterized in that: The invention comprises a storage module, wherein the storage module comprises instructions loaded and executed by a processor, and when the instructions are executed, the processor executes the automobile instrument chip power supply control method according to any one of claims 1-2.

5. A computer-readable storage medium storing one or more programs, characterized in that: When the one or more programs are executed by the processor, the automobile instrument chip power supply control method according to any one of claims 1 to 2 is implemented.

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