CN110633187A - Method and device for monitoring TF (TransFlash) card of server and server - Google Patents
Method and device for monitoring TF (TransFlash) card of server and server Download PDFInfo
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- CN110633187A CN110633187A CN201910778806.6A CN201910778806A CN110633187A CN 110633187 A CN110633187 A CN 110633187A CN 201910778806 A CN201910778806 A CN 201910778806A CN 110633187 A CN110633187 A CN 110633187A
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- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3031—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a motherboard or an expansion card
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Abstract
The invention discloses a method for monitoring a TF card of a server, wherein the server comprises a TF card controller and a resistor with adjustable resistance value between the TF card controller and the TF card, and the method comprises the following steps: detecting, at the TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card; overshoot present in the signal waveform is reduced by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card. A corresponding device for monitoring the TF card of the server and the server are also disclosed. Through the scheme, the overshoot degree of the signal waveform between the TF card controller and the TF card can be adjusted to meet the signal integrity specification of the TF card.
Description
Technical Field
The present invention relates to server monitoring technologies, and in particular, to a method and an apparatus for monitoring a TF card of a server, and a server.
Background
The TF Card (flash Card) is also called a micro SD Card, and is a memory Card which is widely used at present. The application of the TF card on the server is mainly applied to BMC (Baseboard Management Controller) and PCH (Platform Controller Hub, which is an integrated south bridge of Intel corporation), and the purpose of mounting the TF card under the BMC is to store an image mirror image of BMC Flash, thereby facilitating updating of BMC firmware. The main purpose of mounting the TF card under the PCH is to temporarily store a server south bridge (PCH) system log, so as to conveniently perform error checking work on the operation fault of the server, and thus it can be known that the signal integrity of a signal transmitted between the TF card and the server is very important for the stable operation of the server. The TF card communicates with the system via SDIO signals (containing clock signals and 4 sets of DATA signals), the clock signals are 50MHz in high-speed mode, and the DATA transmission rate is not very high for most design manufacturers, so that the problem of signal integrity is easily ignored. Third, since the TF card does not have a mature simulation model in the market at present, and cannot simulate signals, the problem of signal integrity of the TF card is a potentially important and very easily overlooked problem.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method and a device for monitoring a TF card of a server, and the server; which is able to maintain the signal integrity of the signals between the server and the TF card.
To achieve the object of the present invention, the present invention provides a method for monitoring a TF card of a server, the server comprising a TF card controller and a resistor of adjustable resistance between the TF card controller and the TF card, the method comprising:
detecting, at the TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card;
overshoot present in the signal waveform is reduced by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card.
In an alternative embodiment, a resistor with adjustable resistance value is respectively arranged on the lines between the connecting ends of the clock signal, the command signal and the data signal of the TF card controller and the connecting ends of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
In an alternative embodiment, the step of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot level of the input signal and the overshoot level of the output signal of the TF card comprises:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card.
In an alternative embodiment, the step of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot level of the input signal and the overshoot level of the output signal of the TF card comprises:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
The embodiment of the invention provides a device for monitoring a TF card of a server, wherein the server comprises a TF card controller and a resistor with adjustable resistance between the TF card controller and the TF card, and the device comprises a processor and a memory;
the memory is to store computer readable instructions;
the processor is configured to execute the computer-readable instructions to perform operations comprising:
detecting, at the TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card;
overshoot present in the signal waveform is reduced by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card.
In an alternative embodiment, a resistor with adjustable resistance value is respectively arranged on the lines between the connecting ends of the clock signal, the command signal and the data signal of the TF card controller and the connecting ends of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
In an alternative embodiment, the operation of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card includes:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card.
In an alternative embodiment, the operation of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card includes:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
The embodiment of the invention provides a server, which comprises a TF card controller and a resistor with adjustable resistance value between the TF card controller and a TF card.
In an alternative embodiment, a resistor with adjustable resistance value is respectively arranged on the lines between the connecting ends of the clock signal, the command signal and the data signal of the TF card controller and the connecting ends of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
The embodiment of the invention has the advantages that a mode of adjusting the overshoot degree of the signal between the TF card controller and the TF card by using the resistor between the TF card controller and the TF card of the server is provided, so that the overshoot degree of the signal waveform between the TF card controller and the TF card can be adjusted to meet the signal integrity specification of the TF card.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart of a method for monitoring a TF card of a server according to an embodiment of the present invention;
fig. 2 is a block diagram of an apparatus for monitoring a TF card of a server according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a TF card controller, a resistor and a TF card of a server according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
The TF Card (flash Card) is also called Micro SD Card (Micro SD Card), and is a memory Card currently in use. The application of the TF card on the server is mainly applied to BMC (Baseboard Management Controller) and PCH (Platform Controller Hub, which is an integrated south bridge of Intel corporation), and the purpose of mounting the TF card under the BMC is to store an image mirror image of BMC Flash, thereby facilitating updating of BMC firmware. The main purpose of mounting the TF card under the PCH is to temporarily store a server south bridge (PCH) system log, so as to conveniently perform error checking work on the operation fault of the server, and thus it can be known that the signal integrity of a signal transmitted between the TF card and the server is very important for the stable operation of the server. The TF card communicates with the system via SDIO signals (containing clock signals and 4 sets of DATA signals), the clock signals are 50MHz in high-speed mode, and the DATA transmission rate is not very high for most design manufacturers, so that the problem of signal integrity is easily ignored. Third, since the TF card does not have a mature simulation model in the market at present, and cannot simulate signals, the problem of signal integrity of the TF card is a potentially important and very easily overlooked problem.
In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a method for monitoring a TF card of a server, the server including a TF card controller and a resistor with an adjustable resistance value between the TF card controller and the TF card, as shown in fig. 1, the method including steps S101 to S103.
In step S101, while a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card are detected at the TF card.
The TF card controller may be a BMC or a PCH, or may be a dedicated controller. The degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card can be detected by a Real-time oscilloscope.
In step S103, according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card, the overshoot existing in the signal waveform is reduced by adjusting the resistor.
The embodiment of the invention has the advantages that a mode of adjusting the overshoot degree of the signal between the TF card controller and the TF card by using the resistor between the TF card controller and the TF card of the server is provided, so that the overshoot degree of the signal waveform between the TF card controller and the TF card can be adjusted to meet the signal integrity specification of the TF card.
In an alternative embodiment, a resistor with adjustable resistance value is respectively arranged on the lines between the connecting ends of the clock signal, the command signal and the data signal of the TF card controller and the connecting ends of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
In this alternative embodiment, resistors with adjustable resistance values are respectively arranged on the line (Clock) on which the Clock signal is located, the line (Command) on which the Command signal is located, and the line (Data) on which the Data signal is located; in which Data is transmitted bi-directionally over the Data lines. The Data line can adopt a 1-line mode; a4-wire mode may also be used, with data being transmitted over the DAT0-DAT3 lines.
In an alternative embodiment, step S103 comprises:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card. The overshoot of the input signal includes the overshoot of the input high level and the overshoot of the input low level, the input high level and the input low level have correlation, if one input level has no overshoot, the other input level generally has no overshoot. Therefore, only one resistor with variable resistance is needed on the line to adjust the overshoot degree of the high level of the input signal and the overshoot degree of the low level of the input signal; or only one variable resistance resistor is needed to adjust the overshoot degree of the high level of the output signal and the overshoot degree of the low level of the output signal.
In an alternative embodiment, step S103 comprises:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
In order to solve the above technical problem, an embodiment of the present invention provides an apparatus for monitoring a TF card of a server, the server including a TF card controller and a resistor with an adjustable resistance value between the TF card controller and the TF card, as shown in fig. 2, the apparatus including a memory 10 and a processor 20;
the processor 20 is configured to execute the computer-readable instructions to perform the following operations:
detecting, at the TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card;
overshoot present in the signal waveform is reduced by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card.
In an alternative embodiment, a resistor with adjustable resistance value is respectively arranged on the lines between the connecting ends of the clock signal, the command signal and the data signal of the TF card controller and the connecting ends of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
In an alternative embodiment, the operation of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card includes:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card.
In an alternative embodiment, the operation of eliminating the overshoot present in the signal waveform by adjusting the resistor according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card includes:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
In order to solve the above technical problem, an embodiment of the present invention provides a server, as shown in fig. 3, including a TF card controller 210, and further including a resistor 220 with an adjustable resistance value between the TF card controller 210 and the TF card 300.
In an alternative embodiment, a resistor 220 with adjustable resistance is respectively arranged on the line between the connection terminal of the clock signal, command signal and data signal of the TF card controller 210 and the connection terminal of the clock signal, command signal and data signal of the TF card 300; where each resistor 220 is used to control the degree of overshoot of the signal on the line on which it is located.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A method for monitoring a TF card of a server, the server comprising a TF card controller and a resistor of adjustable resistance between the TF card controller and the TF card, the method comprising:
detecting, at a TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card;
and according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card, reducing the overshoot existing in the signal waveform by adjusting the resistor.
2. The method according to claim 1, wherein a resistor with adjustable resistance is respectively arranged on the line between the connection terminal of the clock signal, the command signal and the data signal of the TF card controller and the connection terminal of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
3. The method of claim 1, wherein the step of eliminating overshoot present in the signal waveform by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card comprises:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card.
4. The method of claim 1, wherein the step of eliminating overshoot present in the signal waveform by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card comprises:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
5. An apparatus for monitoring a TF card of a server, the server comprising a TF card controller and a resistor of adjustable resistance between the TF card controller and the TF card, the apparatus comprising a processor and a memory;
the memory is to store computer readable instructions;
the processor is configured to execute the computer-readable instructions to perform operations comprising:
detecting, at a TF card, a degree of overshoot of an input signal and a degree of overshoot of an output signal of the TF card when a clock signal and a command to read data and a command to write data are transmitted to the TF card through the TF card controller to exchange data between the TF card controller and the TF card;
and according to the detected overshoot degree of the input signal and the overshoot degree of the output signal of the TF card, reducing the overshoot existing in the signal waveform by adjusting the resistor.
6. The apparatus according to claim 5, wherein a resistor with adjustable resistance is respectively arranged on the line between the connection terminal of the clock signal, the command signal and the data signal of the TF card controller and the connection terminal of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
7. The apparatus of claim 5, wherein the operation of eliminating overshoot present in the signal waveform by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card comprises:
setting the resistor to have a resistance value of 0 ohm when the overshoot degree of the input signal and the overshoot degree of the output signal of the TF card start to be detected;
if the degree of overshoot of the input signal or the degree of overshoot of the output signal of the TF card does not meet the specification of the signal integrity of the TF card, the resistance value of the resistor is gradually increased and the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are iteratively detected until the degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card are reduced to meet the specification of the signal integrity of the TF card.
8. The apparatus of claim 5, wherein the operation of eliminating overshoot present in the signal waveform by adjusting the resistor according to the detected degree of overshoot of the input signal and the degree of overshoot of the output signal of the TF card comprises:
when the overshoot degree of the input signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the input signal of the TF card is reduced by adjusting the resistance value of a resistor corresponding to the input signal;
when the overshoot degree of the output signal of the TF card is detected not to meet the signal integrity specification of the TF card, the overshoot of the output signal of the TF card is reduced by adjusting the resistance value of the resistor corresponding to the output signal.
9. A server comprising a TF card controller, characterized in that it further comprises a resistor of adjustable resistance between the TF card controller and the TF card.
10. The server according to claim 9, wherein a resistor with adjustable resistance is respectively arranged on the line between the connection terminal of the clock signal, the command signal and the data signal of the TF card controller and the connection terminal of the clock signal, the command signal and the data signal of the TF card; wherein each resistor is used to control the degree of overshoot of the signal on the line on which it is located.
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| CN201910778806.6A CN110633187B (en) | 2019-08-22 | 2019-08-22 | Method and device for monitoring TF (TransFlash) card of server and server |
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| CN108183705A (en) * | 2018-01-11 | 2018-06-19 | 郑州云海信息技术有限公司 | A kind of server system one-way bus transmission method |
| CN108647124A (en) * | 2018-04-03 | 2018-10-12 | 郑州云海信息技术有限公司 | A kind of method and its device of storage skip signal |
| CN108809754A (en) * | 2018-05-18 | 2018-11-13 | 郑州云海信息技术有限公司 | A kind of TF Card measuring signal integrality system and methods under BMC |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108183705A (en) * | 2018-01-11 | 2018-06-19 | 郑州云海信息技术有限公司 | A kind of server system one-way bus transmission method |
| CN108647124A (en) * | 2018-04-03 | 2018-10-12 | 郑州云海信息技术有限公司 | A kind of method and its device of storage skip signal |
| CN108809754A (en) * | 2018-05-18 | 2018-11-13 | 郑州云海信息技术有限公司 | A kind of TF Card measuring signal integrality system and methods under BMC |
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