CN108829417B - Upgrading device, method, equipment and storage medium of CPLD - Google Patents
Upgrading device, method, equipment and storage medium of CPLD Download PDFInfo
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Abstract
The application discloses CPLD's upgrading device includes: the CPU and the CPLD are respectively connected with a power supply through a first power line and a second power line; the first power line and the second power line are independent of each other. Therefore, the connection relationship between the CPU and the power supply and the connection relationship between the CPLD and the power supply are mutually independent, so that the power on/off condition of the CPU is not influenced by the power on/off condition of the CPLD, and the CPU can still update the CPLD when the CPLD is abnormal, thereby improving the reliability of the CPLD. The application also discloses a method, equipment and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present invention relates to the field of system processing, and in particular, to an apparatus, a method, a device, and a storage medium for upgrading a CPLD.
Background
In recent years, a CPLD (Complex Programmable Logic Device) is widely used in the IT industry as a Programmable Logic Device to implement functions such as power-on and power-off control, watchdog, reset reason recording, low-speed protocol conversion, serial port switching, and the like. In order to adapt to the development, the CPLD is also required to be upgraded after the product is put on the market. However, in the process of upgrading the CPLD, the upgrading often fails due to factors such as sudden power failure, interference or human damage. Once the CPLD fails to be upgraded, the CPLD cannot be used any more, thereby causing the function of the whole product to fail.
Therefore, how to improve the reliability of the CPLD is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention is directed to provide an upgrading apparatus for CPLD, which can improve the reliability of the CPLD; another object of the present invention is to provide an upgrading method, apparatus, device and computer readable storage medium for CPLD, which have the above-mentioned advantages.
In order to solve the above technical problem, the present invention provides an upgrading apparatus for a CPLD, including:
the CPU and the CPLD are respectively connected with a power supply through a first power line and a second power line; the first power line and the second power line are independent of each other.
In order to solve the above technical problem, the present invention further provides an upgrading method of a CPLD, which is applied to the above upgrading device of a CPLD, and includes:
acquiring version information to be updated of the CPLD;
and after a processing instruction is detected, updating the CPLD according to the processing instruction and by using the version information to be updated.
Preferably, the method for generating the processing instruction specifically includes:
writing the first numerical value into a first register so that the CPLD converts the first numerical value according to a preset rule and writes the first numerical value into a second register to obtain a second numerical value;
judging whether the second numerical value is consistent with a standard value;
and if not, triggering to generate the processing instruction.
Preferably, after the determining whether the second value is consistent with a standard value, the method further includes:
if so, further judging whether the current version information of the CPLD is consistent with the version information to be updated;
and if not, entering the step of triggering and generating the processing instruction.
Preferably, further comprising:
counting the times of judging that the second numerical value is inconsistent with the standard value within a preset time;
judging whether the times are greater than a time threshold value;
and if so, entering the step of triggering and generating the processing instruction.
Preferably, the version information to be updated is current version information or upgraded version information.
In order to solve the above technical problem, the present invention further provides an upgrading device for a CPLD, which is applied to the above upgrading device for a CPLD, and includes:
the acquisition module is used for acquiring version information to be updated of the CPLD;
and the processing module is used for updating the CPLD according to the processing instruction and by utilizing the version information to be updated after the processing instruction is detected.
In order to solve the above technical problem, the present invention further provides an upgrading device for a CPLD, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of any one of the CPLD upgrading methods when the computer program is executed.
In order to solve the above technical problem, the present invention further provides a computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the step of upgrading the CPLD according to any one of the above embodiments.
The invention provides an upgrading device of a CPLD, comprising: the CPU and the CPLD are respectively connected with a power supply through a first power line and a second power line; the first power line and the second power line are independent of each other. Therefore, the connection relationship between the CPU and the power supply and the connection relationship between the CPLD and the power supply are mutually independent, so that the power on/off condition of the CPU is not influenced by the power on/off condition of the CPLD, and the CPU can still update the CPLD when the CPLD is abnormal, thereby improving the reliability of the CPLD.
In order to solve the technical problem, the invention also provides an upgrading method, device, equipment and computer readable storage medium of the CPLD, which have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of an upgrading apparatus for a CPLD according to an embodiment of the present invention;
fig. 2 is a flowchart of an upgrading method for a CPLD according to an embodiment of the present invention;
fig. 3 is a flowchart of another upgrading method for a CPLD according to an embodiment of the present invention;
fig. 4 is a flowchart of another upgrading method for a CPLD according to an embodiment of the present invention;
fig. 5 is a structural diagram of an upgrading apparatus for a CPLD according to an embodiment of the present invention;
fig. 6 is a structural diagram of an upgrading device of a CPLD according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the embodiment of the invention is to provide a device and a method for upgrading a CPLD, which can improve the reliability of the CPLD; another core of the present invention is to provide an upgrading method, apparatus, device and computer readable storage medium for CPLD, all having the above-mentioned advantages.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a structural diagram of an upgrading apparatus for a CPLD according to an embodiment of the present invention. As shown in fig. 1, the upgrading device of the CPLD specifically includes a CPU10 and a CPLD20, and the CPU and the CPLD are connected to the power supply 30 through a first power line 11 and a second power line 21, respectively; the first power supply line 11 and the second power supply line 12 are independent of each other.
In the present embodiment, the number of the power supplies 30 may be one or more. That is, the CPU10 and the CPLD20 may be connected to the same power supply 30, that is, the first power line 11 and the second power line 21 are simultaneously connected to the same power supply 30; the CPU10 may be connected to the first power supply via the first power supply line 11, and the CPLD20 may be connected to the second power supply via the second power supply line 21, which is not limited in this embodiment. The first power line 11 and the second power line 21 are independent from each other, so that the power supply of the power supply 30 to the CPU10 and the power supply to the CPLD20 do not affect each other, that is, the power on/off condition of the CPU10 is not affected by the power on/off condition of the CPLD 20.
It should be noted that the type of the CPU10 may be BMC, or x86 or MIPS, and the specific type of the CPU is not limited in this embodiment.
Typically, the CPU10 and the CPLD20 are connected by a bus. It should be noted that, in this embodiment, the CPU10 and the CPLD20 are connected by a bus, so that the communication between the CPU10 and the CPLD20 is more convenient, and the delay time is reduced. In a preferred embodiment, the Bus is in particular an IIC Bus or an SPI Bus or a Local Bus or an LPC Bus. It should be noted that the type of the Bus may be IIC (Inter-Integrated Circuit), SPI (Serial Peripheral Interface), Local Bus (Local Bus), LPC (linear predictive coding), and the like, and in this embodiment, the type of the Bus is not limited.
The upgrading device for the CPLD provided by the embodiment of the invention comprises: the CPU and the CPLD are respectively connected with a power supply through a first power line and a second power line; the first power line and the second power line are independent of each other. Therefore, the connection relationship between the CPU and the power supply and the connection relationship between the CPLD and the power supply are mutually independent, so that the power on/off condition of the CPU is not influenced by the power on/off condition of the CPLD, and the CPU can still operate the CPLD when the CPLD is abnormal, thereby improving the reliability of the CPLD.
Fig. 2 is a flowchart of an upgrading method of a CPLD according to an embodiment of the present invention. It should be noted that, in practical applications, the CPLD generally needs to perform an upgrade operation, and in the upgrade process, the upgrade often fails due to factors such as power failure, interference, or human damage. After the upgrading of the CPLD fails, the function of the CPLD is invalid and the CPLD cannot normally operate. The invention provides the upgrading device of the CPLD, so that the power supply conditions of the power supply to the CPU and the CPLD are mutually independent, and the CPU can still operate the CPLD when the CPLD is failed to be upgraded. Accordingly, the method for using the CPLD upgrading device is described in detail below. The upgrading method of the CPLD shown in fig. 2 is applied to the upgrading device of the CPLD, and includes:
s10: and acquiring version information to be updated of the CPLD.
Specifically, in order to reset the CPLD after the CPLD fails to be upgraded, the CPU needs to acquire version information of the CPLD to be updated in advance, that is, version information of the CPLD when the CPLD is upgraded after the CPLD fails to be upgraded. The version information to be updated may be one or more, so as to be selectively used.
S20: and after the processing instruction is detected, updating the CPLD according to the processing instruction and by using the version information to be updated.
Specifically, the processing instruction may be generated by detecting that the current operation condition of the CPLD is abnormal, or may be an instruction input by a human, which is not limited in this embodiment.
It should be noted that, the version information to be updated of the CPLD is acquired, so that after the CPLD fails to be updated and the CPLD cannot normally operate, the CPU stores the version information to be updated of the CPLD, and after a processing instruction is detected, the CPLD can be updated by using the version information to be updated.
It should be noted that, since the method for updating the CPLD is well known to those skilled in the art, the detailed description thereof is omitted here.
The upgrading method of the CPLD provided by the embodiment of the invention comprises the steps that a CPU obtains version information to be updated of the CPLD; after the processing instruction is detected, the CPU independent of the power supply of the CPLD updates the CPLD according to the version information to be updated, and because the CPU is independent of the power supply of the CPLD, after the upgrading of the CPLD fails, the CPU10 can still update the CPLD20 according to the version information to be updated, so that the CPLD20 can normally operate, and the reliability of the CPLD20 is improved.
Fig. 3 is a flowchart of another upgrading method for a CPLD according to an embodiment of the present invention. On the basis of the foregoing embodiment, the present embodiment further describes and optimizes the technical solution, and specifically, the method for generating the processing instruction specifically includes:
s21: and writing the first numerical value into a first register so that the CPLD converts the first numerical value according to a preset rule and writes the first numerical value into a second register to obtain a second numerical value.
Specifically, the CPU defines a first register and a second register in advance in the CPLD, sets a first value in advance, and then writes the first value into the first register, and when the CPLD detects the first value in the first register, the CPLD converts the first value according to a preset rule, writes the converted value into the second register, and sets the value written into the second register as a second value.
S22: and judging whether the second numerical value is consistent with the standard value.
When detecting that the second value exists in the second register, the CPU compares the second value with the standard value and judges whether the second value is consistent with the standard value. The standard value is a value obtained by converting the first numerical value using the same conversion rule. Therefore, whether the CPLD is in error in the data processing process can be judged, and whether the CPLD is in failure, namely whether the upgrading is failed or not is judged.
S23: if not, triggering to generate a processing instruction.
That is, when the second value is not consistent with the standard value, that is, the CPU determines that the CPLD has a fault, the CPLD fails to be upgraded, and therefore, the generation of the processing instruction is triggered.
As a preferred embodiment, the format of the first numerical value may be set as a 16-system number, and the corresponding standard value may be set in a manner that: the 16-ary number of the first numerical value is converted into a binary number and inverted by bit, thereby obtaining a standard value. And the CPLD converts the first numerical value according to the same rule and writes the first numerical value into a second register as a second numerical value.
In this embodiment, the first numerical value is set to 0x5A (the binary value is 01011010) and written into the first register, the corresponding obtained standard value is 0xA5 (the binary value is 10100101), and the CPU determines whether the second numerical value written into the second register by the CPLD is the same as the standard value, thereby determining whether the generation of the processing instruction needs to be triggered. It should be noted that, since the first value 0x5A is converted into binary, the intervals of "0" and "1" appear, so that data errors can be detected in time when the first value is inverted bitwise. It will be appreciated that setting the first value to 0xA5 is the same.
It should be noted that, more than two registers may be further provided, and the accuracy of the determination can be further improved by writing in the numerical value, converting according to the preset rule, and comparing and determining the numerical value.
As a preferred implementation, in addition to the above example, the method further includes:
counting the times of judging that the second value is inconsistent with the standard value within the preset time;
judging whether the times are greater than a time threshold value;
if yes, the step of triggering generation of a processing instruction is carried out.
Specifically, after the first register and the second register are set, a counter is set. When it is judged in S23 that the second value does not coincide with the standard value, the counter is incremented by 1, and the operation returns to S21. And when the value of the counter is greater than the preset time threshold value, indicating that the CPLD is failed to upgrade, and then entering a step of triggering generation of a processing instruction. In this embodiment, the value of the number threshold is not limited, and is preferably set to 3.
Therefore, whether the CPLD is failed to be upgraded or not is judged by increasing the times of judging whether the second numerical value is consistent with the standard value, the possibility of misjudgment can be reduced, unnecessary processing operation is avoided, and the reliability of the CPLD is further improved.
On the basis of the above embodiments, the present embodiment further describes and optimizes the technical solution, and specifically, the version information to be updated is the current version information or the upgrade version information.
It should be noted that the version information to be updated is version information used when the CPLD is updated, specifically current version information or upgrade version information, and in S10, the current version information and the upgrade version information may be acquired.
Specifically, after the CPLD fails to be upgraded, the CPU performs an update operation on the CPLD, which may be to set the version of the CPLD to the version before the upgrade, that is, the current version information, or to continuously update the CPLD to the upgrade version information. That is, assuming that the current version information of the CPLD is a, the CPLD needs to be upgraded to the upgraded version information B, and after the CPLD fails to be upgraded, the CPU can upgrade the version of the CPLD to the current version information a or to the upgraded version information B, which can both ensure the normal operation of the CPLD.
It should be noted that after the version update, the CPU will continuously detect whether there is an abnormality in the CPLD, that is, repeat the operations of S21 to S24, so as to detect whether there is an abnormality in the CPLD in real time. More specifically, the CPU may perform reset detection after the CPLD is updated, or the CPU may perform direct detection without resetting, so that the CPLD can be continuously detected after the CPLD is updated, and the reliability of the CPLD can be further improved.
Fig. 4 is a flowchart of another upgrading method for a CPLD according to an embodiment of the present invention. On the basis of the foregoing embodiment, the present embodiment further describes and optimizes the technical solution, and specifically, as shown in fig. 3, after determining whether the second value is consistent with the standard value, the method further includes:
s24: if so, further judging whether the current version information of the CPLD is consistent with the version information to be updated;
and if not, entering a step of triggering generation of a processing instruction.
Specifically, after the second value is determined to be consistent with the standard value, it needs to be further determined whether the current version information of the CPLD is consistent with the version information to be updated. Specifically, the current version information of the CPLD is acquired, and the current version information of the CPLD is compared with the pre-stored version information to be updated; or comparing the version information required in the processing instruction with the current version information of the CPLD to judge whether the current version information of the CPLD is consistent with the version information to be updated.
It should be noted that, the comparison method is various, and the comparison may be performed by extracting keywords or comparing all information, which is not limited in this embodiment.
It should be noted that if the current version information of the CPLD is determined to be consistent with the version information to be updated, it indicates that the current CPLD is in a normal state, and therefore, no further processing is required; if the current version information of the CPLD is judged to be inconsistent with the version information to be updated, the current version is not the preset version to be updated, and therefore the processing instruction is triggered and generated again.
It should be noted that, when detecting the version, multiple judgments may be performed within a preset time, and if the number of times of judging that the publication information is inconsistent is greater than the inconsistent threshold, it is judged that the version information is inconsistent, so as to trigger generation of the processing instruction. This also enables further improvement in the reliability of the CPLD.
The above detailed description is made on the embodiments of the apparatus and the method for upgrading a CPLD provided by the present invention, and the present invention also provides an apparatus and a device for upgrading a CPLD corresponding to the method, and a computer-readable storage medium.
Fig. 5 is a structural diagram of an upgrading apparatus for a CPLD according to an embodiment of the present invention. As shown in fig. 5, the upgrading device for CPLD, applied to the above-mentioned upgrading device for CPLD, includes:
the acquiring module 51 is configured to acquire version information to be updated of the CPLD;
and the processing module 52 is configured to, after detecting the processing instruction, update the CPLD according to the processing instruction and by using the version information to be updated.
The upgrading device of the CPLD provided by the embodiment of the invention has the beneficial effect of the upgrading method of the CPLD.
Fig. 6 is a structural diagram of an upgrading device of a CPLD according to an embodiment of the present invention. As shown in fig. 6, the upgrading apparatus of the CPLD includes:
a memory 61 for storing a computer program;
and a processor 62 for implementing the steps of the upgrading method of the CPLD as described above when executing the computer program.
The upgrading device of the CPLD provided by the embodiment of the invention has the beneficial effect of the upgrading method of the CPLD.
In order to solve the above technical problem, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the above method for upgrading a CPLD.
The computer-readable storage medium provided by the embodiment of the invention has the beneficial effect of the CPLD upgrading method.
The upgrading device, method, device and computer readable storage medium of the CPLD provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Claims (5)
1. A CPLD upgrading method is applied to a CPLD upgrading device, and is characterized by comprising the following steps:
acquiring version information to be updated of the CPLD;
after a processing instruction is detected, updating the CPLD according to the processing instruction and by using the version information to be updated;
the upgrading device of the CPLD comprises:
the CPU and the CPLD are respectively connected with a power supply through a first power line and a second power line; the first power line and the second power line are independent of each other;
the method for generating the processing instruction specifically comprises the following steps:
writing the first numerical value into a first register so that the CPLD converts the first numerical value according to a preset rule and writes the first numerical value into a second register to obtain a second numerical value;
judging whether the second numerical value is consistent with a standard value;
if not, triggering and generating the processing instruction;
after the determining whether the second numerical value is consistent with a standard value, further comprising:
if so, further judging whether the current version information of the CPLD is consistent with the version information to be updated;
and if not, entering the step of triggering and generating the processing instruction.
2. The upgrade method according to claim 1, further comprising:
counting the times of judging that the second numerical value is inconsistent with the standard value within a preset time;
judging whether the times are greater than a time threshold value;
and if so, entering the step of triggering and generating the processing instruction.
3. The upgrade method according to claim 1 or 2, wherein the version information to be updated is current version information or upgrade version information.
4. An upgrade apparatus for a CPLD, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of upgrading a CPLD according to any one of claims 1 to 3 when executing said computer program.
5. A computer-readable storage medium, characterized in that it has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of upgrading a CPLD according to any one of claims 1 to 3.
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