CN104199760A - Method for monitoring computer crash with EC SCI function - Google Patents
Method for monitoring computer crash with EC SCI function Download PDFInfo
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- CN104199760A CN104199760A CN201410448531.7A CN201410448531A CN104199760A CN 104199760 A CN104199760 A CN 104199760A CN 201410448531 A CN201410448531 A CN 201410448531A CN 104199760 A CN104199760 A CN 104199760A
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Abstract
The invention discloses a method for monitoring computer crash with an EC SCI function. According to the method, the mode that an ECtimer is used for being matched with SCI interrupting is used for solving the problem of computer crash. Compared with the prior art, the method for monitoring computer crash with the EC SCI function has the advantages of being reasonable in design, convenient to operate and the like, a terminal user does not need to operate an extra application program, and the trouble and the technology challenge are avoided for the terminal user.
Description
Technical field
The present invention relates to computer corruption processing technology field, specifically a kind of method with EC SCI function monitor computer corruption.
Background technology
EC(Embed Controller, embedded controller) be 16 single-chip microcomputers, its inside itself also has the Flash of certain capacity to store the code of EC.In the process of opening in system, EC is controlling the sequential of most signal of interests.
SCI(Serial Communication Interface) mean " serial communication interface ", with respect to parallel communications, be a kind of general name of serial communication technology.SCI module is for serial communication, and communication protocol is embodied on the data layout of SCI.Conventionally the data layout of SCI is referred to as to programmable data form.
Watchdog is Linux " house dog ".In the microcomputer system being formed by single-chip microcomputer; because the work of single-chip microcomputer usually can be subject to the interference from external electromagnetic field; cause the race of program to fly; and be absorbed in endless loop; the normal operation of program is interrupted; cannot be worked on by monolithic processor controlled system; can cause the dead state that is absorbed in of whole system; there is unpredictable consequence; so for the consideration of single-chip microcomputer running status being carried out to Real-Time Monitoring; just produced a kind of chip that is specifically designed to monitoring Single Chip Microcomputer (SCM) program running status, be commonly called as " house dog ".
Nowadays, industrial computer is applied very general in all trades and professions.Industrial computer is in aviation information, vehicular applications, and extraordinary utilization, plant equipment, financial sector, intelligent transportation, control system, huge effect is being brought into play in each field such as Medical Devices.
Due to hardware or software, industrial computer crashes sometimes.As hardware heat dispersion, not good or operating system deadlock all can cause deadlock.Deadlock refers to operating system cisco unity malfunction.After deadlock, we will force to allow computer restart, and make the industrial computer again can operation.Here have a problem, industrial computer is to develop for industrial field control, and in the time that industrial computer moves, often nobody guards on industrial computer side, how do we detect industrial computer deadlock so?
General way has two kinds now.The first, makes of south bridge TCO timer SMI Handle and south bridge watchdog.The second, makes of the application program collocation EC of operating system.First kind of way can not accomplish that detecting crashes completely, if because the first system generation deadlock and cpu function is intact, TCO timer SMI interrupts still can triggering in the same old way, and this method can not thought computer corruption.Only have CPU to die, first kind of way just can work.The second way can solve the drawback that first kind of way is brought, but it requires an application program of the extra operation of terminal user.But it needs terminal user that extra application program is provided, and has brought trouble and technological challenge undoubtedly to terminal user.
Summary of the invention
Technical assignment of the present invention is to provide a kind of method with EC SCI function monitor computer corruption.
Technical assignment of the present invention is realized in the following manner, and described method is to use the mode of EC timer collocation SCI interruption to solve the problem of computer corruption.
The concrete steps of described the method comprise that EC detecting Watchdog variable and EC driver process two links of ECSCI.
The concrete steps of described EC detecting Watchdog variable are as follows:
First, in EC code, initialization Watchdog variable, and arrange 1 second Timer interrupt; In Timer interrupts, use Watchdog variable to carry out timing afterwards, interrupt holding to Host if SCI to 8 seconds, is sent out in timing; If Watchdog does not recover initial value distributing in 4 seconds of having no progeny in SCI; EC draws south bridge Init# pin, and CPU receives information restarting systems.
The concrete steps that described EC driver processes ECSCI are as follows:
BIOS declares EC Device at ASL, and ECSCI is arranged to corresponding GPE, corresponding EC space address is arranged to read and write to the address of Watchdog variate-value; When os starting, EC driver can read these information; In corresponding QEvent, add code, numerical value 12 is write in the EC SPACE of Watchdog variable address.
A kind of method with EC SCI function monitor computer corruption of the present invention compared to the prior art, there is the features such as reasonable in design, easy to operate, the method does not need an application program of the extra operation of terminal user, avoids having brought trouble and technological challenge to terminal user.
Brief description of the drawings
Accompanying drawing 1 is a kind of EC detecting Watchdog variable schematic diagram of the method with EC SCI function monitor computer corruption.
Accompanying drawing 2 is that a kind of EC driver of the method with EC SCI function monitor computer corruption processes ECSCI schematic diagram.
Embodiment
Embodiment 1:
The method of this use EC SCI function monitor computer corruption comprises that EC detecting Watchdog variable and EC driver process two links of ECSCI;
The concrete steps of EC detecting Watchdog variable: first, in EC code, initialization Watchdog variable, and the Timer in 1 second is set interrupts; In Timer interrupts, use Watchdog variable to carry out timing afterwards, timing, to 8 seconds, is sent out SCI and is interrupted holding to Host.
EC driver processes the concrete steps of ECSCI: BIOS at ASL declaration EC Device, and ECSCI is arranged to corresponding GPE, corresponding EC space address is arranged to read and write to the address of Watchdog variate-value; When os starting, EC driver can read these information; In corresponding QEvent, add code, numerical value 12 is write in the EC SPACE of Watchdog variable address.
Embodiment 2:
The method of this use EC SCI function monitor computer corruption comprises that EC detecting Watchdog variable and EC driver process two links of ECSCI;
The concrete steps of EC detecting Watchdog variable: first, in EC code, initialization Watchdog variable, and the Timer in 1 second is set interrupts; In Timer interrupts, use Watchdog variable to carry out timing afterwards, Watchdog does not recover initial value distributing in 4 seconds of having no progeny in SCI; EC draws south bridge Init# pin, and CPU receives information restarting systems.
EC driver processes the concrete steps of ECSCI: BIOS at ASL declaration EC Device, and ECSCI is arranged to corresponding GPE, corresponding EC space address is arranged to read and write to the address of Watchdog variate-value; When os starting, EC driver can read these information; In corresponding QEvent, add code, numerical value 12 is write in the EC SPACE of Watchdog variable address.
By embodiment above, described those skilled in the art can be easy to realize the present invention.But should be appreciated that the present invention is not limited to above-mentioned several embodiments.On the basis of disclosed embodiment, described those skilled in the art can the different technical characterictic of combination in any, thereby realizes different technical schemes.
Claims (4)
1. by a method for EC SCI function monitor computer corruption, it is characterized in that, described method is to use the mode of EC timer collocation SCI interruption to solve the problem of computer corruption.
2. a kind of method with EC SCI function monitor computer corruption according to claim 1, is characterized in that, the concrete steps of described the method comprise that EC detecting Watchdog variable and EC driver process two links of ECSCI.
3. a kind of method with EC SCI function monitor computer corruption according to claim 2, is characterized in that, the concrete steps of described EC detecting Watchdog variable are as follows:
First, in EC code, initialization Watchdog variable, and arrange 1 second Timer interrupt; In Timer interrupts, use Watchdog variable to carry out timing afterwards, interrupt holding to Host if SCI to 8 seconds, is sent out in timing; If Watchdog does not recover initial value distributing in 4 seconds of having no progeny in SCI; EC draws south bridge Init# pin, and CPU receives information restarting systems.
4. a kind of method with EC SCI function monitor computer corruption according to claim 2, is characterized in that, the concrete steps that described EC driver processes ECSCI are as follows:
BIOS declares EC Device at ASL, and ECSCI is arranged to corresponding GPE, corresponding EC space address is arranged to read and write to the address of Watchdog variate-value; When os starting, EC driver can read these information; In corresponding QEvent, add code, numerical value 12 is write in the EC SPACE of Watchdog variable address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448531.7A CN104199760A (en) | 2014-09-04 | 2014-09-04 | Method for monitoring computer crash with EC SCI function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410448531.7A CN104199760A (en) | 2014-09-04 | 2014-09-04 | Method for monitoring computer crash with EC SCI function |
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| Publication Number | Publication Date |
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| CN104199760A true CN104199760A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410448531.7A Pending CN104199760A (en) | 2014-09-04 | 2014-09-04 | Method for monitoring computer crash with EC SCI function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105760314A (en) * | 2016-03-14 | 2016-07-13 | 山东超越数控电子有限公司 | Method for controlling starting-up screen luminance of system by virtue of EC SCI |
-
2014
- 2014-09-04 CN CN201410448531.7A patent/CN104199760A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 方玲: ""看门狗"技术在单片机系统抗干扰设计中的应用", 《安徽电子信息职业技术学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105760314A (en) * | 2016-03-14 | 2016-07-13 | 山东超越数控电子有限公司 | Method for controlling starting-up screen luminance of system by virtue of EC SCI |
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Application publication date: 20141210 |
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