TWI497268B - Server system and timing operation control method after energizing thereof - Google Patents

Description

Server system and control method of operation timing after power-on

A server system and a control method thereof, in particular, a server system for controlling operation timing after power-on and a control method thereof.

At present, the server includes a plurality of very large integrated circuits (VLSI), wherein the reset signals of some important ultra-large integrated circuits will affect the operation timing of the servers, and these important ultra-large integrated circuits are After receiving the reset signal and starting initialization and resetting, the server can start normal operation.

However, in the current circuit design of the server, some logic elements that generate reset signals are prone to glitch when the server is just powered up, and when the glitch is transmitted to the server, the important super When a large integrated circuit is used, it may be mistaken for a reset signal by a very large integrated circuit. At this time, the very large integrated circuit is usually in the initialization stage because the servo is just energized, because the glitch is mistaken It is to reset the signal and start resetting, thus affecting the normal operation of the server.

In summary, it can be seen that in the prior art, there has been a long-standing problem that a logic element may generate a glitch that is mistaken as a reset signal when the server is powered on. Therefore, it is necessary to propose an improved technical means to solve this problem.

In view of the prior art, there is a problem that a logic element may generate a glitch that is mistaken as a reset signal when the server is powered on, and the present invention discloses a server system and a control method thereof for the operation timing after power-on, wherein: the present invention The disclosed server system includes at least: a power management module that generates a working power and a power good indication signal, wherein when the voltage of the working power is energized by the server, From low voltage to high voltage change; logic control module receives working power and power normal indication signal, and generates a reset signal when receiving the power normal indication signal; voltage monitoring module has a voltage threshold ( Threshold), when the voltage of the working power source is lower than the voltage threshold, the voltage of the control reset signal is lower than the first voltage value, and the potential of the control reset signal is higher than when the voltage of the working power source is higher than the voltage threshold The second voltage value is maintained for a first time; the substrate management controller is electrically connected to the logic control module, and the logic control module controls the voltage of the reset signal to be changed from being higher than the second voltage value to being lower than the first voltage. At the time of the value, the reset is initiated and initialized, and the server system is managed and monitored after the initialization is complete.

The method for controlling the operation timing of the server system after being powered on according to the present invention, The step includes: the power management module generates a working power supply and a power normal indication signal, and the voltage of the working power supply changes from a low voltage to a high voltage when the server is powered on; the logic control module receives the working power and the power normal indication signal, and After receiving the power normal indication signal, a reset signal is generated; when the voltage of the working power supply is lower than the voltage threshold, the voltage of the control reset signal is lower than the first voltage value until the voltage of the working power source is higher than the voltage. At the threshold, the voltage monitoring module controls the voltage of the reset signal to be higher than the second voltage value and maintains the first time; the logic control module controls the voltage of the reset signal to change from being higher than the second voltage value to being lower than the first voltage The value is maintained for a second time; the baseboard management controller begins to reset and initialize when the reset signal is lower than the first voltage value.

The system and method disclosed by the present invention are as above, and the difference between the prior art and the prior art is In the present invention, when the voltage of the working power supply is lower than the voltage threshold by the voltage monitoring module added in the server system, the voltage of the control reset signal is lower than the first voltage value, and when the voltage of the working power supply rises above When the voltage threshold of the voltage monitoring module is used, the voltage monitoring module controls the voltage of the reset signal to be higher than the second voltage value, thereby solving the problems of the prior art, and achieving stable initialization and resetting of the server. Technical efficiency.

100‧‧‧Server system

120‧‧‧Power Management Module

130‧‧‧Logic Control Module

150‧‧‧Voltage monitoring module

160‧‧‧Base management controller

190‧‧‧resistance

Step 210‧‧‧ The power management module generates a working power and power good indication signal, and the voltage of the working power supply changes from a low voltage to a high voltage when the server is powered on.

Step 230‧‧‧ The logic control module receives the working power and generates a reset signal after receiving the power good indication signal

Step 250‧‧‧ Voltage monitoring module When the voltage of the working power source is lower than the voltage threshold, the voltage of the control reset signal is lower than the first voltage value until the voltage of the working power source is higher than the voltage threshold, the voltage monitoring mode The group control reset signal voltage is higher than the second voltage value and maintains a period of electricity for the first time

Step 260‧‧‧ The logic control module controls the voltage of the reset signal to change from being higher than the second voltage value to being lower than the first voltage value for a second time

Step 270‧‧ The baseboard management controller starts resetting and initializing when the reset signal is lower than the first voltage value

Step 280‧‧‧ The logic control module controls the voltage of the reset signal to change to be higher than the second voltage value after the second time

FIG. 1A is a system architecture diagram of a server system according to the present invention.

FIG. 1B is a schematic diagram of a circuit according to an embodiment of the present invention.

Figure 2 is a control method for operating timing of the server after power-on of the present invention flow chart.

The features and embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, which are sufficient to enable those skilled in the art to fully understand the technical means to which the present invention solves the technical problems, and The achievable effects of the present invention.

The invention provides a voltage monitoring module capable of stably resetting a signal in a circuit in which a conventional logic control module transmits a reset signal to a baseboard management controller (BMC) to reset the baseboard management controller. When the logic control module in the server is prevented from generating a glitch in the initialization phase, it is recognized as a reset signal by the substrate management controller, and the substrate management controller starts to reset after the initialization has not been completed.

Hereinafter, the system operation of the present invention will be described with reference to the system architecture diagram of the server system proposed by the present invention in "FIG. 1A". As shown in FIG. 1A, the server system 100 of the present invention includes a power management module 120, a logic control module 130, a voltage monitoring module 150, and a substrate management controller 160.

The power management module 120 is responsible for generating operating power. The power management module 120 starts to operate when the server transitions from the unpowered state to the powered state, and the generated operating power source changes from a low voltage to a high voltage, and the power management module 120 generates the work. After the power supply reaches a certain voltage, the voltage of the working power supply is maintained.

Generally, the power management module 120 includes a voltage dividing unit and a voltage stabilizing unit, and the voltage dividing unit can convert the external AC power obtained by the server system 100 into a stable DC working power source, and the voltage stabilizing unit can maintain the voltage dividing unit. The voltage of the working power generated by the conversion.

In addition, the power management module 120 is also responsible for generating a power good indication signal. In general, the power management module 120 generates a power good indication signal when the power is normally supplied to the server system.

The logic control module 130 is responsible for starting the operation after obtaining the working power generated by the power management module 120, that is, continuously generating the reset after receiving the power good indication signal generated by the power management module 120 ( Reset) signal. In general, the logic control module 130 is a Complex Programmable Logic Device (Complex Programmable Logic Device, CPLD) or Field-Programmable Gate Array (FPGA), but the invention is not limited thereto.

The voltage of the reset signal generated by the logic control module 130 is generally higher than a predetermined one. The voltage value (in the present invention, this voltage value is referred to as "second voltage value"), but in the logic control module 130 from the beginning of the work power supply, to the completion of the initialization can work normally, the logic control The voltage of the reset signal output by the module 130 starts from zero and gradually increases to the second voltage value.

The logic control module 130 is responsible for reaching the voltage of the reset signal outputted After the two voltage values, the voltage of the reset signal is lowered below another predetermined voltage value (in the present invention, this voltage value is referred to as a "first voltage value"). That is to say, after the initialization of the logic control module 130, the voltage of the reset signal is controlled to be changed from being higher than the second voltage value to being lower than the first voltage value. In the present invention, the first voltage value is less than the second voltage value, that is, the voltage of the reset signal may go from high to low.

In addition, the logic control module 130 will control the reset signal voltage lower than the first After the voltage value, the voltage of the reset signal is maintained, so that the voltage of the reset signal is lower than the first voltage value for a period of time (S). In the present invention, the time (S) at which the logic control module 130 keeps the voltage of the reset signal lower than the first voltage value is referred to as "first time", for example, 8 microseconds, but the present invention does not limit.

In some embodiments, the reset signal generated by the logic control module 130 can be It is an open drain signal output by an Open Drain (OD) or an open collector signal output by an Open Collector (OC). At this time, the logic control module 130 transmits the generated reset signal to the circuit of the substrate management controller 160, and is also connected to the resistor 190, as shown in FIG. 1B. The other end of the resistor 190 that is not connected to the circuit for transmitting the reset signal is connected to the power management module 120, and the working power output by the power management module 120 passes through the resistor 190.

The voltage monitoring module 150 is responsible for controlling the level of the voltage value of the reset signal. Voltage The monitoring module 150 has a voltage threshold. When the voltage of the working power generated by the power management module 120 is lower than the voltage threshold, the voltage monitoring module 150 controls the reset signal entering the substrate management controller 160. The voltage of the power supply module 120 is lower than the first voltage value, and the voltage of the working power source generated by the power management module 120 gradually increases. When the voltage of the source is higher than the voltage threshold, the voltage monitoring module 150 controls the potential of the reset signal flowing into the substrate management controller 160 to be higher than the second voltage value.

The voltage monitoring module 150 controls the reset signal flowing into the substrate management controller 160. After the potential of the number is higher than the second voltage value, the voltage of the reset signal flowing into the substrate management controller 160 is continuously controlled, so that the voltage of the reset signal flowing into the substrate management controller 160 is continuously maintained for a period of time (T). Higher than the second voltage value. In the present invention, the time (T) at which the voltage monitoring module 150 keeps the voltage of the reset signal higher than the second voltage value is referred to as "second time", for example, 8 microseconds, but the present invention does not limit.

The baseboard management controller 160 is electrically connected to the logic control module 130, and is responsible for The logic control module 130 controls the voltage of the reset signal to change from the second voltage value to be lower than the first voltage value, starts resetting and starts initialization, and manages and monitors the server system 100 after the initialization is completed.

Next, an embodiment of the operating system and method of the present invention will be explained, and A flow chart of the method for operating the timing of the server system after power-on according to the present invention is shown in Fig. 2.

After the server system 100 is connected to the external power source, the power management module 120 can obtain the external power source to generate the working power and the power normal indication signal (step 210). In this embodiment, it is assumed that the power management module 120 is a standby power management module for managing AC power. When the power management module 120 receives the control signal to be turned on, the generated working power is When the power is turned on, the generated power normal indication signal is the normal power-on indication signal of the power to be turned on.

After the power management module 120 generates the working power and power normal indication signals (step 210), the generated working power can be provided to the logic control module 130, the voltage monitoring module 150, and the substrate management controller 160.

When the logic control module 130 obtains the working power generated by the power management module 120, the logic control module 130 starts to work. When the logic control module 130 is working normally, after receiving the power normal indication signal generated by the power management module 120, A reset signal is initially generated (step 230). In this embodiment, the logic control module 130 is in the same period as the normal operating voltage (for example, 3.3 volts) generated by the power management module 120, that is, at the same time as the conventional technology. During normal operation, the voltage of the reset signal output will be low voltage. Gradually change to high voltage. However, in the process of gradually increasing the voltage of the reset signal, the voltage of the reset signal may generate a glitch, that is, suddenly drop to zero in a short period of time, and then suddenly increase to a higher level than before the drop to zero. Voltage and continue to increase upwards.

Similarly, the voltage monitoring module 150 is obtained by the power management module 120. When the working power is turned on, the operation starts, that is, when the voltage of the working power generated by the power management module 120 is lower than the voltage threshold, the voltage of the reset signal flowing into the substrate management controller 160 is controlled to be lower than the first. The voltage monitoring module 150 controls the voltage of the reset signal flowing into the substrate management controller 160 to be higher than the second voltage value until the voltage of the working power generated by the power management module 120 is higher than the voltage threshold. And continuously maintaining the voltage of the reset signal flowing into the substrate management controller 160 for a period of time (S) higher than the second voltage value (step 250).

That is, in the embodiment, the work generated by the power management module 120 During the period when the voltage of the power source reaches the voltage threshold (for example, 2.8 volts), the voltage monitoring module 150 continuously controls the voltage of the reset signal flowing into the substrate management controller 160, so that the flow control module 130 generates the inflow substrate management. The voltage of the reset signal of the controller 160 is lower than the first voltage value (for example, 0.5 volts). Therefore, even if the reset signal generated by the logic control module 130 generates a glitch, the voltage monitoring module 150 of the present invention can ensure that the voltage flowing into the substrate management controller 160 to reset the signal is not affected by the glitch.

After that, the voltage of the working power source generated by the power management module 120 rises. When the voltage of the working power generated by the power management module 120 reaches the voltage threshold of the voltage monitoring module 150, the voltage monitoring module 150 controls the voltage of the reset signal flowing into the substrate management controller 160 to be higher than the voltage. Two voltage values (for example, 3.0 volts), and continuously controlling the weight flowing into the substrate management controller 160 during a first time (S) from when the voltage of the reset signal flowing into the substrate management controller 160 is higher than the second voltage value The signal is set such that the voltage of the reset signal of the substrate management controller 160 remains higher than the second voltage value during the first time (S). At this time, the logic control module 130 is also ready to work normally because the voltage of the working power source generated by the power management module 120 is about to reach the normal working voltage.

After the logic control module 130 starts normal operation, the logic control module 130 The voltage of the generated reset signal may be controlled to be changed from a value higher than the second voltage value to a value lower than the first voltage value, and the voltage of the reset signal is lower than the first voltage value for a second time (T) Controlling the voltage of the reset signal generated so that the voltage of the generated reset signal remains lower than the second voltage value during the second time (T) (step 260), and thus, the voltage is lower than the first voltage value After the reset signal flows into the substrate management controller 160, the substrate management controller 160 will begin to reset and begin initialization (step 270).

After the substrate management controller 160 will start to reset and start initialization (step 270), that is, the logic control module 130 keeps the voltage value of the generated reset signal lower than the first voltage value for a second time (T After that, the voltage of the generated reset signal can be controlled to be changed from lower than the first voltage value to higher than the second voltage value (step 280).

As can be seen from the above embodiments, the substrate management controller 160 can be surely prevented from being affected by the glitch generated by the logic control module 130, and the resetting is started when the initialization has not been completed.

In summary, it can be seen that the difference between the present invention and the prior art is that the voltage monitoring module added in the server system controls the voltage of the reset signal to be lower than the first voltage when the voltage of the working power source is lower than the voltage threshold. The value, and when the voltage of the working power supply rises above the voltage threshold of the voltage monitoring module, the voltage monitoring module controls the technical method that the voltage of the reset signal is higher than the second voltage value, by which a technical means can be solved The logic elements present in the prior art may cause a problem that is mistaken as a surge of the reset signal when the server is powered on, thereby achieving the technical effect of enabling the server to stably initialize and reset.

Furthermore, the method for controlling the operation timing of the server system of the present invention can be implemented in hardware, software or a combination of hardware and software, or can be implemented in a centralized manner in a computer system or distributed in different components. The decentralized implementation of interconnected computer systems.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any modification of the form and details of the practice of the present invention, which is a matter of ordinary skill in the art to which the present invention pertains, is a patent protection of the present invention. range. The scope of the invention is to be determined by the scope of the appended claims.

Step 210‧‧‧ The power management module generates a working power and power good indication signal, and the voltage of the working power supply changes from a low voltage to a high voltage when the server is powered on.

Step 230‧‧‧ The logic control module receives the working power and generates a reset signal after receiving the power good indication signal

Step 250‧‧‧ Voltage monitoring module When the voltage of the working power source is lower than the voltage threshold, the voltage of the control reset signal is lower than the first voltage value until the voltage of the working power source is higher than the voltage threshold, the voltage monitoring mode The group control reset signal voltage is higher than the second voltage value and remains for a first time

Step 260‧‧‧ The logic control module controls the voltage of the reset signal to change from being higher than the second voltage value to being lower than the first voltage value for a second time

Step 270‧‧ The baseboard management controller starts resetting and initializing when the reset signal is lower than the first voltage value

Step 280‧‧‧ The logic control module controls the voltage of the reset signal to change to be higher than the second voltage value after the second time

Claims (10)

A server system includes at least: a power management module that generates a working power supply and a power good indication signal, wherein the voltage of the working power supply changes from a low voltage to a high voltage when the server is powered on a logic control module receives the working power and the power normal indication signal, and generates a reset signal when receiving the power normal indication signal; and a voltage monitoring module having a voltage threshold (threshold) When the voltage of the working power source is lower than the voltage threshold, the voltage of the reset signal is controlled to be lower than a first voltage value, and when the voltage of the working power source is higher than the voltage threshold, the weight is controlled. The potential of the signal is higher than a second voltage value for a first time (S); and a substrate management controller is electrically connected to the logic control module, and the logic control module controls the reset signal When the voltage changes from above the second voltage value to below the first voltage value, it starts to reset and initializes, and manages and monitors the server system after the initialization is completed. The server system of claim 1, wherein the logic control module changes the voltage of the reset signal from being higher than the second voltage value to lower than the first voltage value and maintaining a second After time (T), the voltage controlling the reset signal changes to be higher than the second voltage value. The server system of claim 1, wherein the power management module is a standby power management module for managing an AC power source, the working power source is a power source to be turned on, and the power source is The power good indication signal is a normal power-on indication signal. The server system of claim 1, wherein the first voltage value is less than the The second voltage value. The server system of claim 1, wherein the power management module comprises a voltage dividing module and a power voltage regulator module. The server system of claim 1, wherein the logic control module is a Complex Programmable Logic Device (CPLD) or a Field-Programmable Gate Array (FPGA). The server system of claim 1, wherein the reset signal generated by the logic control module is an open drain signal (OD) or an open collector signal (OC), and the reset signal is connected to the A resistor, the other end of which is connected to the working power supply. A control method for operating timing of a server system after being powered on is applied to a server system, and at least includes the following steps: a power management module generates a working power supply and a power normal indication signal, and the voltage of the working power supply is at the servo When the device is powered on, it changes from a low voltage to a high voltage; a logic control module receives the working power supply and the power normal indication signal, and generates a reset signal after receiving the power normal indication signal; a voltage monitoring module is When the voltage of the working power source is lower than a voltage threshold, the voltage of the reset signal is controlled to be lower than a first voltage value, and the voltage monitoring module controls the reset until the voltage of the working power source is higher than the voltage threshold. The voltage of the signal is higher than a second voltage value for a first time (S); the logic control module controls the voltage of the reset signal to change from above the second voltage value to below the first voltage value and Holding a second time (T); a substrate management controller begins to reset and initialize when the reset signal is lower than the first voltage value; and the logic control module passes the second Between the (T), the reset signal of the control circuit The pressure changes above the second voltage value. For example, the method for controlling the operation timing of the server system after being powered on according to the eighth aspect of the patent application, wherein the power management module is a power-on management module for managing the AC power, and the working power is to be turned on. The power supply and the power good indication signal are a normal power-on indication signal. The method for controlling the operation timing after the server system is powered on, as described in claim 8, wherein the first voltage value is smaller than the second voltage value.