CN105653384A - Soft-core CPU resetting method and master-slave type system - Google Patents
Soft-core CPU resetting method and master-slave type system Download PDFInfo
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- CN105653384A CN105653384A CN201511028108.2A CN201511028108A CN105653384A CN 105653384 A CN105653384 A CN 105653384A CN 201511028108 A CN201511028108 A CN 201511028108A CN 105653384 A CN105653384 A CN 105653384A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0706—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
- G06F11/0721—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment within a central processing unit [CPU]
- G06F11/0724—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment within a central processing unit [CPU] in a multiprocessor or a multi-core unit
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1438—Restarting or rejuvenating
Abstract
The invention discloses a soft-core CPU resetting method. The soft-core CPU resetting method comprises the steps that a master CPU sends application programs down to a soft-core CPU; the soft-core CPU executes a bootstrap program in a bootstrap program module and saves the application programs in an application program backup region and an application program execution region in an off-chip RAM; the soft-core CPU jumps to execute the application programs stored in the application program execution region on the basis of the bootstrap program and saves state parameters in a parameter save region in the off-chip RAM; a logic monitor module monitors the working state of the soft-core CPU and sends out a reset signal to the soft-core CPU when the logic monitor module detects that the soft-core CPU is abnormal; the soft-core CPU executes the bootstrap program to copy the application programs in the application program backup region to the application program execution region; the soft-core CPU jumps to execute the application programs stored in the application program execution region and reads the state parameters in the parameter save region, and therefore rapid resetting of the soft-core CPU is achieved. Compared with the prior art, the method has the advantages that the resetting efficiency of the soft-core CPU can be improved when the soft-core CPU is abnormal.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of soft nucleus CPU repositioning method and principal and subordinate's formula system.
Background technology
Along with the development of design and manufaction technology, integrated circuit (IC) design has developed into the integrated of IP, i.e. SOC (SystemOn-a-Chip) designing technique. SOC can effectively reduce cost of development, shorten the construction cycle, is the topmost product development mode that industry member will adopt from now on.
See Fig. 1, it is one of SOC in conventional art application scene, comprises primary device 11 and from equipment 12 principal and subordinate's formula system. Primary device 11 has main CPU, and adopts SOC to realize from equipment 12. When system electrification, SOC is carried out initial configuration and issues application program by main CPU. The soft nucleus CPU of the upper use one of SOC or more, in order to perform application program, thus realizes the various functions of SOC customization. Soft nucleus CPU as from the core of equipment, once be limited to logic working situation and self structure impact and producing exception, by the normal operation of influential system. It is therefore necessary in time soft nucleus CPU is resetted. In conventional art, it is communicated by interface circuit with soft nucleus CPU by main CPU, the running status of soft nucleus CPU is monitored, once occur abnormal, just control soft nucleus CPU resets, namely by main CPU, soft nucleus CPU is carried out initial configuration, and issue application program, this kind of repositioning method, owing to communication interface communication is usually relatively slow, therefore whole process is consuming time long, and efficiency comparison is low, when the main CPU of primary device completes reconfiguring and transfer application soft nucleus CPU, may cause huge problem from equipment.
Summary of the invention
Based on this, it is necessary to provide a kind of soft nucleus CPU repositioning method and principal and subordinate's formula system, compared to conventional art, it is possible to when soft nucleus CPU is abnormal, it is to increase its reset efficiency.
A kind of soft nucleus CPU repositioning method, is applied to principal and subordinate's formula system, and described principal and subordinate's formula system comprises system and the outer RAM of sheet on main CPU, sheet, and described upper system comprises soft nucleus CPU, bootstrap program module and Logical Supervisory Control module;Described method comprises:
Application program is handed down to soft nucleus CPU by main CPU;
Soft nucleus CPU, performs the preamble in bootstrap program module, and the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district;
Soft nucleus CPU, based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet;
Logical Supervisory Control module, monitors the working order of soft nucleus CPU, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU;
Soft nucleus CPU, performs preamble, and to application program, the application copy in Application Backup district is performed district;
Soft nucleus CPU, redirect performs the application program that application program performs in district to store, and reads the state parameter in parameter conservation zone, thus realizes the Rapid reset of soft nucleus CPU.
A kind of principal and subordinate's formula system, comprises system and the outer RAM of sheet on main CPU, sheet, and described upper system comprises soft nucleus CPU, bootstrap program module and Logical Supervisory Control module;
Described main CPU, for being handed down to soft nucleus CPU by application program;
Soft nucleus CPU, for the preamble performed in bootstrap program module, the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district;
Soft nucleus CPU, also for based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet;
Logical Supervisory Control module, for the working order of soft nucleus CPU being monitored, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU;
Soft nucleus CPU, also for performing preamble, performs district by the application copy in Application Backup district to application program;
Soft nucleus CPU, also performs, for redirect, the application program that application program performs storage in district, and reads the state parameter in parameter conservation zone, thus realize the Rapid reset of soft nucleus CPU.
Above-mentioned soft nucleus CPU repositioning method and principal and subordinate's formula system, the application storage issued by main CPU by soft nucleus CPU performs district to Application Backup district and the application program of the outer RAM of sheet, redirect performs application program and performs the application program in district again, and parameter conservation zone state parameter being kept in the outer RAM of sheet, by Logical Supervisory Control module, the working order of soft nucleus CPU is monitored, after detecting that soft nucleus CPU is abnormal, reset signal is sent to soft nucleus CPU, application copy in Application Backup district is performed district to application program by soft nucleus CPU, redirect performs the application program that application program performs in district to store, and read the state parameter in parameter conservation zone, compared to conventional art by main CPU by communication interface circuit monitoring soft nucleus CPU state, and re-issue application program when resetting, improve reset efficiency.
Accompanying drawing explanation
Fig. 1 is an application scene schematic diagram of conventional art;
Fig. 2 is the structural representation of the principal and subordinate's formula system in an embodiment;
Fig. 3 is the storage organization schematic diagram of the outer RAM of the sheet in an embodiment.
Embodiment
In order to make the object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
See Fig. 2, it provides a kind of principal and subordinate's formula system, comprising system and the outer RAM23 of sheet on main CPU21, sheet, described upper system comprises soft nucleus CPU 221, bootstrap program module 222 and Logical Supervisory Control module 223;
Described main CPU, for being handed down to soft nucleus CPU by application program;
Soft nucleus CPU, for the preamble performed in bootstrap program module, the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district;
Soft nucleus CPU, also for based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet;
Logical Supervisory Control module, for the working order of soft nucleus CPU being monitored, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU;
Soft nucleus CPU, also for performing preamble, performs district by the application copy in Application Backup district to application program;
Soft nucleus CPU, also performs, for redirect, the application program that application program performs storage in district, and reads the state parameter in parameter conservation zone, thus realize the Rapid reset of soft nucleus CPU.
Composition graphs 2 and Fig. 3, it provides a kind of soft nucleus CPU repositioning method that can be used for the formula system of principal and subordinate described in embodiment, the method comprises:
Application program is handed down to soft nucleus CPU by main CPU. Concrete, after the power-up, soft nucleus CPU is carried out initialize parameter configuration to system by main CPU, and provides application program to download.
Soft nucleus CPU, performs the preamble in bootstrap program module, and the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district.
Soft nucleus CPU, based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet.
Logical Supervisory Control module, monitors the working order of soft nucleus CPU, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU. Concrete, Logical Supervisory Control module and soft nucleus CPU can be on same a slice FPGA, and communication speed is very fast. Logical Supervisory Control module can pass through hardware description language, as VHDL, verilog etc. realize, the value of the inner a series of mark running status of register of soft nucleus CPU can be obtained in real time, thus the running status of soft nucleus CPU is detected, exception detected, it is possible to but be not limited to send a low level signal to soft nucleus CPU reset pin.
Soft nucleus CPU, re-executes preamble on sheet, simultaneously extraction logic status information, according to the exceptional reset mark in status information and Application Backup regional address and length, by the application copy in Application Backup district to application program execution district. Concrete, when resetting, soft nucleus CPU is from the Application Backup district copy application program in RAM sheet. As in Fig. 3, Application Backup district and application program perform district and belong to the outer RAM of a slice, and transfer is very fast, compared to conventional art by main CPU by communication interface as the serial ports such as UART, I2C issue program, it is to increase transfer rate. Fig. 3 is the storage organization of the outer RAM of a sheet, it it is Application Backup district between the 0x0 to 0x200000 of address, address 0x2000000 to 0x400000 is parameter storage zone, address 0x4000000 to 0x6000000 is that application program performs district, and address 0x6000000 to 0x8000000 is reserved area for subsequent use.
Soft nucleus CPU, redirect performs the application program that application program performs in district to store, and reads the state parameter in parameter conservation zone, thus realizes the Rapid reset of soft nucleus CPU. Concrete, soft nucleus CPU steering routine performs the application program in district, and reading state parameter loads, it is possible to quickly recover to system works progress when occurring abnormal, compared to conventional art, it is not necessary to accent starts to perform application program after the reset.
Soft nucleus CPU repositioning method in above-described embodiment and principal and subordinate's formula system, the application storage issued by main CPU by soft nucleus CPU performs district to Application Backup district and the application program of the outer RAM of sheet, redirect performs application program and performs the application program in district again, and parameter conservation zone state parameter being kept in the outer RAM of sheet, by Logical Supervisory Control module, the working order of soft nucleus CPU is monitored, after detecting that soft nucleus CPU is abnormal, reset signal is sent to soft nucleus CPU, application copy in Application Backup district is performed district to application program by soft nucleus CPU, redirect performs the application program that application program performs in district to store, and read the state parameter in parameter conservation zone, compared to conventional art by main CPU by communication interface circuit monitoring soft nucleus CPU state, and re-issue application program when resetting, improve reset efficiency.
The above embodiment only have expressed several enforcement modes of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to patent scope of the present invention. , it is also possible to make some distortion and improvement, it should be appreciated that for the person of ordinary skill of the art, without departing from the inventive concept of the premise these all belong to protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (2)
1. a soft nucleus CPU repositioning method, is applied to principal and subordinate's formula system, and described principal and subordinate's formula system comprises system and the outer RAM of sheet on main CPU, sheet, and described upper system comprises soft nucleus CPU, bootstrap program module and Logical Supervisory Control module; It is characterized in that, described method comprises:
Application program is handed down to soft nucleus CPU by main CPU;
Soft nucleus CPU, performs the preamble in bootstrap program module, and the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district;
Soft nucleus CPU, based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet;
Logical Supervisory Control module, monitors the working order of soft nucleus CPU, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU;
Soft nucleus CPU, performs preamble, and to application program, the application copy in Application Backup district is performed district;
Soft nucleus CPU, redirect performs the application program that application program performs in district to store, and reads the state parameter in parameter conservation zone, thus realizes the Rapid reset of soft nucleus CPU.
2. principal and subordinate's formula system, it is characterised in that, described principal and subordinate's formula system comprises system and the outer RAM of sheet on main CPU, sheet, and described upper system comprises soft nucleus CPU, bootstrap program module and Logical Supervisory Control module;
Described main CPU, for being handed down to soft nucleus CPU by application program;
Soft nucleus CPU, for the preamble performed in bootstrap program module, the Application Backup district and the application program that application program are kept in the outer RAM of sheet perform district;
Soft nucleus CPU, also for based on preamble, redirect performs the application program that application program performs in district to store, and parameter conservation zone state parameter being kept in the outer RAM of sheet;
Logical Supervisory Control module, for the working order of soft nucleus CPU being monitored, after detecting that soft nucleus CPU is abnormal, sends reset signal to soft nucleus CPU;
Soft nucleus CPU, also for performing preamble, performs district by the application copy in Application Backup district to application program;
Soft nucleus CPU, also performs, for redirect, the application program that application program performs storage in district, and reads the state parameter in parameter conservation zone, thus realize the Rapid reset of soft nucleus CPU.
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| CN106528311A (en) * | 2016-09-29 | 2017-03-22 | 杭州芯讯科技有限公司 | Embedded system and control method thereof |
| CN106951342A (en) * | 2017-03-17 | 2017-07-14 | 数据通信科学技术研究所 | Flash error correction method in a kind of TF cards |
| CN108121625A (en) * | 2016-11-30 | 2018-06-05 | 联芯科技有限公司 | The method that data are obtained during error |
| CN109032823A (en) * | 2018-05-30 | 2018-12-18 | 出门问问信息科技有限公司 | A kind of extremely self-healing method and device of voice module |
| CN115562465A (en) * | 2022-09-14 | 2023-01-03 | 中国科学院空间应用工程与技术中心 | Resetting method and system for soft-core processor in FPGA system |
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