TWI530801B - Electronic device - Google Patents

Description

Electronic device

The present invention relates to an electronic device, and more particularly to an electronic device that can check whether there is a hard disk backplane in the standby mode.

In the prior art, the motherboard can only detect whether there is a hard disk error at the time of power-on and respond to the user through one of the programmable logic devices (for example, CPLD, FPGA, etc.), and does not need to detect in the standby state. Whether there is a hard disk error, so the above pins are idle when the state is to be turned on, resulting in waste of resources. Moreover, in the prior art, the electronic device determines whether the hard disk backplane is connected by a connection signal provided by the hard disk backplane. However, the hard disk backplane does not work when the power is turned on, so it is impossible to effectively determine whether the electronic device is connected. Hard disk backplane. How to solve the problem that the hard disk backplane is normally connected when the state is to be turned on, and increase the use efficiency of the programmable logic device is a problem to be overcome.

In view of this, the present disclosure proposes a server and control unit to solve the problems described in the prior art.

One aspect of the present disclosure is to provide an electronic device capable of checking whether there is a hard disk backplane when standby, including: a hard disk management chip, a hard disk backplane, a motherboard, and a hard disk state detecting unit. The hard disk management chip includes a backplane connection end and an error detection end. The backplane connection end receives a third backplane connection status signal, and the error detection end is used to output an error detection signal of the hard disk management chip. The hard disk backplane includes a connection detecting end for outputting a first backplane connection status signal. The motherboard includes a control terminal for controlling a complex programmable logic device. The hard disk state detection unit is coupled to the backplane connection end, the error detection end, the connection detection end, and the control end. The floppy state detecting unit is configured to control the hard disk backplane connection state of the output logic device of the complex programmable logic device when the electronic device is in the power-on state, and control the output of the complex programmable logic device when the electronic device is in the working state. The device detects the error status and provides a third backplane connection status signal for the hard disk management chip.

Based on the above, the electronic device shown in the present disclosure can change the second backplane connection state signal by using the operating voltage, the backplane standby voltage, and the switch circuit of the controller, so that the electronic device is in both the standby state and the working state at the same time. It can detect whether the hard disk backplane is connected and react to the error detection state of the electronic device during the working state. In this way, the electronic device can correctly identify whether the hard disk backplane is connected not only in the standby state and the working state, but also does not affect the function of the error detection of the electronic device, thereby achieving the multifunctional recognition technology.

100‧‧‧Electronic devices

110‧‧‧hard disk management board

112‧‧‧backplane connection

114‧‧‧Error detection end

120‧‧‧hard disk backplane

122‧‧‧Connection detection end

130‧‧‧hard disk management chip

140‧‧‧ motherboard

142‧‧‧ motherboard control terminal

144‧‧‧Complex programmable logic device

160‧‧‧hard disk status detection unit

162, 164, 166‧ ‧ switch

R1~R6‧‧‧ resistor

180‧‧‧ Waiting for power on

182‧‧‧ Backplane working voltage

184‧‧‧Power control switch

186‧‧‧Working power supply

CNT1~CNT3, ERDT‧‧‧ signals

1 is a schematic diagram of an electronic device according to an embodiment of the invention; FIG. 2 is a schematic diagram of an electronic device according to an embodiment of the invention; FIG. 3a is a diagram of an implementation according to the invention A schematic diagram of an electronic device standby mode is illustrated; and FIG. 3b is a schematic diagram of an operating state of an electronic device according to an embodiment of the invention.

The embodiments are described in detail below with reference to the accompanying drawings, but the embodiments are not intended to limit the scope of the invention, and the description of structural operations is not intended to limit the order of execution thereof The structure, which produces equal devices, is within the scope of the present invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For ease of understanding, the same elements in the following description will be denoted by the same reference numerals.

In this document, "one" and "the" can be used to mean one or more, unless the article specifically defines the article. It will be further understood that the terms "including", "including", "having", and similar terms are used in the context to indicate the features, regions, integers, steps, The operation, elements, and/or components, and/or one or more of its other features, regions, integers, steps, operations, components, components, and/or groups thereof.

The terms "first", "second", etc., used herein are not intended to refer to the order or order, nor are they intended to limit the invention, only to distinguish between elements or operations described in the same technical terms. Only.

In addition, the term "coupled" or "connected" as used herein may mean that two or more elements are in direct physical or electrical contact with each other, or indirectly in physical or electrical contact with each other, or Multiple components operate or act upon each other.

Please refer to FIG. 1 , which is a schematic diagram of an electronic device according to an embodiment of the invention. As shown in FIG. 1, the electronic device 100 includes a hard disk management board 110, a hard disk backplane 120, and a motherboard 140.

The following paragraphs will set forth various embodiments to explain the functions of the above-described electronic device 100, but the disclosure is not limited to the embodiments listed below.

In this embodiment, as shown in FIG. 1, the hard disk backplane 120 may include a backplane connection state control unit R2 connected to the power source to be powered 180, and the backplane connection state control unit R2 may be used to control the first backplane connection. Status signal CNT1. The motherboard 140 may include a Complex Programmable Logic Device (CPLD) 144, electrically connected to the hard disk backplane 120, and control the transmission. The second backplane is connected to the status signal CNT2. The hard disk management board 110 includes a hard disk management chip 130 and a hard disk state detecting unit 160. The hard disk management chip 130 is configured to manage the working state of the hard disk backplane 120 and control the transmission of the third backplane connection state signal CNT3 and the hard disk error detection signal ERDT. The hard disk state detecting unit 160 is electrically connected to the working power source 186, the hard disk management chip 130, the hard disk backplane 120, and the CPLD 144, and is used for detecting the connection state of the hard disk backplane 120 and the hard disk (not shown). Working status.

Referring to FIG. 2, FIG. 2 is a schematic diagram of an electronic device according to an embodiment of the invention. In this embodiment, as shown in FIG. 2, the hard disk management chip 130 includes a backplane connection end 112 and an error detection end 114. The backplane connection end 112 is configured to receive the third backplane connection status signal CNT3, and error detection. The measuring end 114 is configured to output an error detection signal ERDT of the hard disk management chip 130. The third backplane connection status signal CNT3 is a signal related to the connection state of the hard disk backplane 120 in the electronic device 100, and the error detection signal ERDT is a signal related to the hard disk error of the electronic device 100. The hard disk backplane 120 includes a connection detecting end 122 for outputting a first backplane connection state signal CNT1, wherein the first backplane connection state signal CNT1 is used to reflect the connection state of the hard disk backplane 120. The motherboard 140 includes a motherboard control terminal 142 for outputting a second backplane connection status signal CNT2 to control the CPLD 144. The hard disk state detecting unit 160 is coupled to the backplane connecting end 112, the error detecting end 114, the connection detecting end 122, and the motherboard control end 142, wherein the hard disk state The detecting unit 160 is configured to control the CPLD 144 to output the connection state of the hard disk backplane 120 of the electronic device 100 when the electronic device 100 is in the power-on state, and control the error detection state of the output device 100 by the CPLD 144 when the electronic device 100 is in the working state. And providing a hard disk management chip 130 third backplane connection status signal CNT3.

In an embodiment of the present disclosure, the electronic device 100 can include a power to be turned on 180 and a power control switch 184. The power-on power supply 180 is configured to provide a hard disk backplane 120 and a backplane standby voltage VBPSTBY when the power-on state is to be turned on, and the power control switch 184 is connected to the power-on power supply 180 and the back-plate operating voltage 182, wherein the power control switch is in a standby state. At 184, the power control switch 184 is turned on during the operating state.

In an embodiment of the present disclosure, the electronic device 100 may include the power-on control device 184 providing the hard disk backplane 120 backplane operating voltage 182 via the power control switch 184 to enable the hard disk backplane 120 to be normal. jobs. By the power-on power source 180 and the power control switch 184, the power-on power source 180 can be shared between the power-on state and the working state, thereby reducing the number of external power sources required and increasing the application flexibility of the electronic device 100.

In an embodiment of the present disclosure, the hard disk state detecting unit 160 may include a first switch 162, a second switch 166, and a third switch 164. The first end of the first switch 162 is coupled to the backplane connection end 112, and the second end is coupled to the connection detection end 122. The first end of the second switch 166 is coupled to the error detection end 114, and the second end is coupled to the motherboard. Control terminal 142. The first end of the third switch 164 is coupled to the connection detecting end 122, and the second end is coupled to the main board control end 142. The first switch 162 and the second switch 166 are in the same conducting state, and the first switch 162 and the third switch 164 are in the same state of conduction, that is, the first switch 162 and the second switch 166 are simultaneously turned on and simultaneously turned off, and when When the first switch 162 and the second switch 166 are turned on, the third switch 164 is turned off, and when the first switch 162 and the second switch 166 are turned off, the third switch 164 is turned on.

In an embodiment of the present disclosure, the first switch 162 and the second switch 166 may be a single N-type transistor (nMOS), and the third switch 164 may be a series of two P-type transistors (pMOS), but not To this end, those skilled in the art can adjust the number of switches and the types of switches (such as MOS switches, BJT switches, etc.) according to actual needs.

In an embodiment of the present disclosure, the electronic device 100 can include a working power supply 186 to provide a working voltage VWORK. The working power supply 186 is coupled to the control end of the first switch 162 via the resistor R3, and coupled to the third switch 164 via the resistor R4. The control terminal is coupled to the control terminal of the second switch 166 via the resistor R5 and coupled to the control terminal of the power control switch 184 via the resistor R6.

In an embodiment of the present disclosure, the electronic device 100 may include the operating voltage VWORK being at a low potential, the backplane standby voltage VBPSTBY being at a high potential, and controlling the first switch 162 and the second switch 166 to be turned off. The third switch 164 is turned on. In the working state, the working voltage VWORK is high, and The first switch 162 and the second switch 166 are controlled to be turned on, and the third switch 164 is turned off.

In an embodiment of the present disclosure, the first backplane connection status signal CNT1 is output to the motherboard control terminal 142 via the third switch 164 when the power is turned on. In the working state, the third backplane connection status signal CNT3 is responded to. The first backplane is connected to the state signal CNT1, and the error detection signal ERDT is output to the motherboard control terminal 142.

In an embodiment of the present disclosure, as shown in FIG. 3a, FIG. 3a is a schematic diagram of a standby mode of an electronic device according to an embodiment of the present invention, and the working voltage VWORK and the backplane work when the power is turned on. The voltage 182 is at a low level, and the backplane standby voltage VBPSTBY is at a high level. At this time, the hard disk backplane 120 does not operate, but can still detect whether the electronic device 100 is connected to the hard disk backplane 120. The low level operating voltage VWORK controls the first switch 162 and the second switch 166 to be turned off while controlling the third switch 164 to be turned on. Therefore, when the electronic device 100 is connected to the hard disk backplane 120, the power-on power supply 180 can be connected to the motherboard control terminal 142 through the third switch 164, and the high-level second backplane connection state signal CNT2 is output. Since the power-on power source 180 is a power signal unique to the hard disk backplane 120 when the power-on state is to be turned on, the user can know whether the electronic device 100 is in the standby mode when the second backplane is connected to the state signal CNT2. Connect the hard disk backplane 120.

On the other hand, if the electronic device 100 is not connected to the hard disk backplane 120, the backplane standby voltage VBPSTBY of the high level is not present in the state of being turned on, and the second backplane connection state signal CNT2 is at a low level. In summary, the user can know whether the electronic device 100 is connected to the hard disk backplane 120 by the level of the second backplane connection state signal CNT2 in the standby mode.

As shown in FIG. 3b, FIG. 3b is a schematic diagram showing the working state of an electronic device according to an embodiment of the present invention. In the working state, the working voltage VWORK is at a high level, and the first switch 162 and the second switch are controlled. 166 and the power control switch 184 are turned on while controlling the third switch 164 to be turned off. Since the third switch 164 is turned off, the second backplane connection state signal CNT2 is no longer affected by the first backplane connection state signal CNT1. At this time, the hard disk backplane 120 provides the first backplane connection state signal CNT1 to the hard disk management chip 130 through the first switch 162, and the hard disk management chip 130 transmits the error detection signal ERDT to the motherboard through the second switch 166. 140. In summary, the hard disk state detecting unit 160 can correctly complete the transmission of the third backplane connection state signal CNT3 and the error detection signal ERDT in the working state, and realize the functions of the backplane connection detection and the error detection.

In an embodiment of the present disclosure, as shown in FIG. 2, the first switch 162, the third switch 164, and the power control switch 184 can be used as a source for preventing current from flowing backward.

In an embodiment of the present disclosure, as shown in FIG. 2, the hard disk state detecting unit 160 may include a discharge resistor R1. One end of the electric resistance R1 is coupled to the backplane connection end 112, and the other end is grounded. Wherein, in the state to be turned on, the voltage of the backplane connection terminal 112 is discharged to the low level through the discharge resistor R1, so as to avoid the problem that the voltage of the backplane connection end 112 is uncertain when the state is to be turned on.

In summary, the electronic device shown in the present disclosure can change the connection state of the second backplane by the operating voltage, the back-stand voltage, and the switching circuit of the hard disk state detecting unit, so that the electronic device is simultaneously turned on. Both the state and the working state can detect whether the hard disk backplane is connected, and at the same time, the hard disk error detection state of the electronic device is reflected in the working state. In this way, the electronic device can correctly identify whether the hard disk backplane is connected not only in the standby state and the working state, but also does not affect the function of the hard disk error detection of the electronic device, thereby achieving the multifunctional recognition technology.

Although the illustrative embodiments of the present invention have been described in detail with reference to the drawings, it is understood that the invention is not limited to the same embodiments. Various changes and modifications can be made to the invention without departing from the scope and spirit of the invention.

100‧‧‧Electronic devices

110‧‧‧hard disk management board

112‧‧‧backplane connection

114‧‧‧Error detection end

120‧‧‧hard disk backplane

122‧‧‧Connection detection end

130‧‧‧hard disk management chip

140‧‧‧ motherboard

142‧‧‧ motherboard control terminal

144‧‧‧CPLD

160‧‧‧hard disk status detection unit

162, 164, 166‧ ‧ switch

R1~R6‧‧‧ resistor

180‧‧‧ Waiting for power on

182‧‧‧ Backplane working voltage

184‧‧‧Power control switch

186‧‧‧Working power supply

CNT1~CNT3, ERDT‧‧‧ signals

Claims (10)

An electronic device, which is applicable to a computer system, comprising: a hard disk backplane, comprising a backplane connection state control unit, wherein the backplane connection state control unit is electrically connected to a power to be turned on for controlling a first backplane a connection status signal; a motherboard including a complex programmable logic device (CPLD) electrically connected to the hard disk backplane, and the complex programmable logic device controls transmission of a second backplane connection state a hard disk management board, including a hard disk management chip for managing the working state of the hard disk backplane, the hard disk management chip control transmitting a third backplane connection status signal and a hard disk error detection And a hard disk state detecting unit electrically connected to a working power source, the hard disk management chip, the hard disk backplane and the complex programmable logic device, wherein the hard disk state control unit is configured to detect the hard The connection state of the backplane of the disc and the working state of the hard disk are detected; wherein, when the electronic device is in a state to be powered on, the backplane connection state control unit is in an off state, and the backplane is connected The state control unit is in communication with the complex programmable logic device, and the second backplane connection state signal communicates with the first backplane connection state signal through the hard disk state detecting unit; when the electronic device is in operation Backplane connection status control unit In the state of communication, the hard disk management chip is electrically connected to the hard disk backplane and the complex programmable logic device. At this time, the third backplane connection state signal passes through the hard disk state detecting unit and the first back The board connection status signal communicates, and the second back board connection status signal communicates with the hard disk error detection signal through the hard disk status detecting unit. The electronic device of claim 1, wherein the hard disk state detecting unit comprises: a first switch electrically connected to the hard disk management chip and the hard disk backplane; and a second switch electrically connected to the hard a third management switch, the third switch having one end electrically connected to the first switch and the hard disk backplane, and the other end electrically connected to the second switch and the complex programmable logic device; The first switch and the second switch have the same conduction state, and the first switch and the third switch have different conduction states. The electronic device of claim 2, wherein when the electronic device is in a standby state, the first switch and the second switch are turned off, the third switch is turned on, and when the electronic device is in an active state, the first The switch and the second switch are turned on, and the third switch is turned off. The electronic device of claim 2, wherein the working power source provides an operating voltage, and the working power source is coupled to the control end of the first switch, the control end of the second switch, and the control end of the third switch. The electronic device of claim 2, the hard disk state detecting unit includes a resistor, one end of the resistor is coupled to the hard disk management chip and the first switch, and the other end is grounded, wherein the electronic device is in standby When the power is turned on, the third backplane connection status signal is discharged to a low level through the resistor. The electronic device of claim 5, wherein when the electronic device is in a standby state, the operating voltage is the low level, and the power supply voltage to be turned on is a high level, when the electronic device is in an active state, The operating voltage is the high level. The electronic device of claim 2, wherein the first switch and the second switch are N-type transistors, and the third switch is a P-type transistor. The electronic device of claim 2, further comprising: a power control switch for connecting the power to be turned on and a power supply of the hard disk backplane, wherein the control terminal of the power control switch is connected to the working power source, wherein the electronic device is at The power is to be turned on The source control switch is turned off, and the power control switch is turned on when the electronic device is in an operating state. The electronic device of claim 8, wherein the first switch, the second switch, and the power control open relationship are used to prevent current from flowing backward. The electronic device of claim 3, wherein when the power control switch is turned on, the power to be turned on provides the backplane-backplane operating voltage via the power control switch to make the hard disk backplane work normally.