CN109977047A - External device access method, apparatus and processor - Google Patents
External device access method, apparatus and processor Download PDFInfo
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- CN109977047A CN109977047A CN201910261655.7A CN201910261655A CN109977047A CN 109977047 A CN109977047 A CN 109977047A CN 201910261655 A CN201910261655 A CN 201910261655A CN 109977047 A CN109977047 A CN 109977047A
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- external equipment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
- G06F13/124—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine
- G06F13/126—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware is a sequential transfer control unit, e.g. microprocessor, peripheral processor or state-machine and has means for transferring I/O instructions and statuses between control unit and main processor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
Abstract
The present invention relates to field of embedded technology, a kind of external device access method, apparatus and processor are provided, which comprises after the completion of processor initialization, execute entrance into duty cycle and start epicycle duty cycle；The successively task node in traversal access task chain, the corresponding access operation of each task node is executed to access corresponding external equipment, wherein, each task node is pre-configured with according to the access operation of corresponding external equipment, and access task chain is that all task nodes are formed according to default execution sequential organization.The present invention successively traverses the corresponding access operation of each task node executed in access task chain by processor, it realizes without interrupting and is interacted with the data access between external equipment, so that it is uncontrollable to effectively prevent the system as caused by processor outage.
Description
Technical field
The present invention relates to field of embedded technology, in particular to a kind of external device access method, apparatus and processing
Device.
Background technique
In existing embedded software developing, the application software run in processor is needed with various external equipments (such as
Board, interface, chip etc.) carry out data interaction, when event occurs for external equipment, external equipment with interrupt mode notice at
Device is managed, processor then interrupts the execution of application software major cycle, then going to execute by application software is the interruption in initialization
Specified interruption code block restores application software major cycle after interruption code block is finished by processor, then by processor
Execution, allow major cycle from interrupt position continue to execute.But once peripheral hardware initiates interrupt requests, current application software
Execution will be interrupted, and cannot be predicted due to interrupting the opportunity occurred, seriously affect application software major cycle executes expection, causes
It executes uncontrollable, finally occurs that system is uncontrollable, seriously affect the operation and real-time response of system.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of external device access method, apparatus and processor, by will be outer
The access operation of portion's equipment is pre-configured with and according to sequential organization is executed into access task chain, and processor successively traverses execution
The corresponding access operation of each task node in task chain is accessed, is realized between external equipment without interrupting
Data access interaction, so that it is uncontrollable to effectively prevent the system as caused by processor outage.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, the embodiment of the invention provides a kind of external device access method, be applied to processor, processor with
External equipment is connected by bus, which comprises after the completion of processor initialization, is executed entrance into duty cycle and is opened
Beginning epicycle duty cycle；The successively task node in traversal access task chain, executes the corresponding access operation of each task node
To access corresponding external equipment, wherein each task node is pre-configured with according to the access operation of corresponding external equipment,
Accessing task chain is that all task nodes are formed according to default execution sequential organization.
Second aspect, the embodiment of the invention also provides a kind of external device access devices, are applied to processor, the dress
It sets including starting module and execution module, wherein start module and be used for after the completion of processor initialization, held into duty cycle
Line entry starts epicycle duty cycle；Execution module executes each appoint for the task node in successively traversal access task chain
The corresponding access operation of node be engaged in access corresponding external equipment, wherein each task node is set according to corresponding outside
Standby access operation is pre-configured with, and access task chain is that all task nodes are formed according to default execution sequential organization.
The third aspect, the embodiment of the invention also provides a kind of processor, processor is connect with external equipment by bus,
Processor is communicated with memory；Memory, for storing one or more programs, when one or more of programs are by the place
When managing device execution, so that the processor realizes above-mentioned external device access method.
Compared with the prior art, a kind of external device access method, apparatus provided in an embodiment of the present invention and processor, it is first
First, it is pre-configured with each task node according to the access operation of corresponding external equipment, will owned according still further to default execution sequence
Task node is organized into access task chain.It is initialized after processor powers on, after the completion of initialization, is followed into task first
Ring executes entrance and starts epicycle duty cycle；The first task in epicycle duty cycle is first carried out, i.e. successively traversal access
Task node in task chain executes the corresponding access operation of each task node and is set with accessing the corresponding outside
It is standby.Compared with prior art, the access operation of external equipment is pre-configured with and according to execution sequence by the embodiment of the present invention
It is organized into access task chain, processor successively traverses the corresponding access operation of each task node executed in access task chain,
It realizes without interrupting and is interacted with the data access between external equipment, to effectively prevent transporting due to processor
System caused by row interrupts is uncontrollable.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, special embodiment below, and appended by cooperation
Attached drawing is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of application scenarios schematic diagram provided in an embodiment of the present invention.
Fig. 2 shows another application scenarios schematic diagrams provided in an embodiment of the present invention.
Fig. 3 shows external device access method flow diagram provided in an embodiment of the present invention.
Fig. 4 shows a kind of exemplary diagram for accessing task chain provided in an embodiment of the present invention.
Fig. 5 shows the exemplary diagram of another access task chain provided in an embodiment of the present invention.
Fig. 6 shows the block diagram of external device access device provided in an embodiment of the present invention.
Icon: 10- processor；20- external equipment；30- bus；40- memory；200- external device access device；
201- starts module；202- execution module；203- ending module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
External equipment passes through the data interaction of implement of interruption function and processor, cannot predict due to interrupting the opportunity occurred, sternly
The application software major cycle that ghost image rings processor executes expection, causes to execute uncontrollable, and especially nuclear power industry is embedded
In software development, if indiscriminately imitating this technology, the uncontrollable of system will occur, consequence can seriously arrive the operation for influencing TT&C system
And real-time response.
The inventor of this programme is exactly directed to this problem, proposes a kind of external device access method, apparatus and processing
The access operation of external equipment is pre-configured with and is being answered according to sequential organization is executed at task chain, processor is accessed by device
With actively traversal executes the corresponding access operation of each task node in access task chain in software major cycle, realization is being not necessarily to
Data access in the case where interruption between external equipment interacts, to effectively prevent causing due to processor outage
System it is uncontrollable.This scheme will be described in detail below.
Please referring to Fig. 1, Fig. 1 shows a kind of application scenarios schematic diagram provided in an embodiment of the present invention, in Fig. 1, processor
10 are connect by bus 30 with an at least external equipment 20, and processor 10 has been internally integrated memory 40, and memory 40 is used
In the program of storage said external device access method, processor 10 reads from memory 40 and executes external device access side
The execution of method executes the corresponding access operation of each task node to traverse each task node in access task chain to visit
Corresponding external equipment 20 is asked, hereby it is achieved that the data access in the case where without interrupting between external equipment 20 interacts.
Referring to figure 2., Fig. 2 shows another application scenarios schematic diagram provided in an embodiment of the present invention, in Fig. 2, processing
Device 10 is connect by bus 30 with an at least external equipment 20, and processor 10 is connect with external memory 40, memory 40
For storing the program of said external device access method, processor 10 reads from memory 40 and executes external device access
The execution of method, with traverse access task chain in each task node, execute the corresponding access operation of each task node with
Corresponding external equipment 20 is accessed, hereby it is achieved that the data access in the case where without interrupting between external equipment 20 interacts.
In fig. 1 and 2, processor 10 can be with, but is not limited to central processor CPU (Central Processing
Unit, CPU), on-site programmable gate array FPGA (Field Programmable Gate Array, FPGA) etc..Bus 30 can
With, but be not limited to AT96 bus, STD bus, VME bus etc., wherein AT96 bus is preferred.Memory 40 can be, but
It is not limited to, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory,
ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable read-only memory
(Erasable Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM) (Electric
Erasable Programmable Read-Only Memory, EEPROM) etc..
First embodiment
Referring to figure 3., Fig. 3 shows external device access method flow diagram provided in an embodiment of the present invention.Processing method
The following steps are included:
Step S101 executes entrance into duty cycle and starts epicycle duty cycle after the completion of processor initialization.
In embodiments of the present invention, processor 10 is initialized after the power-up, and after the completion of initialization, processor 10 is held
Row application software, duty cycle are the major cycle of application software, execute entrance into duty cycle, include processing in duty cycle
The task that device 10 needs to be implemented, the work of processor 10 are exactly the task in continuous circulation execution duty cycle.
Step S102, successively the task node in traversal access task chain, executes the corresponding access behaviour of each task node
Make to access corresponding external equipment, wherein each task node is matched in advance according to the access operation of corresponding external equipment
It sets, access task chain is that all task nodes are formed according to default execution sequential organization.
In embodiments of the present invention, task chain is one of the task in duty cycle, into after duty cycle, is first carried out
The corresponding task of task node in task chain, the corresponding task of each task node refer to a behaviour of access external equipment 20
To make, each task node further includes the execution duration of the access parameter of corresponding external equipment 20, access type and access operation,
Accessing parameter includes but is not limited to access length, access times, the number of external equipment 20 etc. of data, and access type includes
It reads and writees, the execution duration of access operation refers to that presetting the task node for each task node executes corresponding task
Duration limitation.For example, it is 32 bytes that the access parameter of task node 1, which is access length, the number of external equipment 20 is 1#, is visited
Ask type for write-in, when execution of access operation a length of 10ms, execute the corresponding task of task node 1, i.e., to 1# external equipment
20 send the write operation that write operation length is 32 bytes, and the duration of write operation is controlled in 10ms.
In embodiments of the present invention, the corresponding access operation of each task node is executed specifically as one kind to access
The mode of the corresponding external equipment 20 may is that
Execution duration according to the access parameter of the corresponding external equipment of task node, access type and access operation executes
The corresponding access operation of task node is to access corresponding external equipment.
In embodiments of the present invention, each operation of each external equipment 20 is preset according to being actually needed,
Therefore, the corresponding task node of the operation is configured accordingly according to each operation of each external equipment 20, so as to hold
When the row corresponding operation of the task node, corresponding operation correctly can be executed to corresponding external equipment 20.
In embodiments of the present invention, not only each operation of each external equipment 20 is preset according to actual needs, often
The sequencing of the execution of each operation of a external equipment 20 is also preset according to actual needs, and according to each behaviour
The sequencing for making the execution of corresponding task node successively strings together task node, is formed access task chain, that is, presses
Task node is successively executed according to access task chain just to have reached according to each task node pair of sequencing execution for realizing setting
The access operation answered reaches and accesses corresponding external equipment 20 in the correct order.
Referring to figure 4., Fig. 4 shows a kind of exemplary diagram for accessing task chain provided in an embodiment of the present invention.In Fig. 4, visit
Ask in task chain that one shares 6 task nodes: task node 1, task node 2, task node 3, task node 4, task node 5
With task node 6, corresponding access operation are as follows: be read out to 1# external equipment, be written to 1# external equipment, be right
2# external equipment is read out, 2# external equipment is written, being read out to 3# external equipment, carrying out to 3# external equipment
Write-in, therefore, successively the task node in traversal access task chain, executes the corresponding access operation of each task node to access
The process of corresponding external equipment 20 are as follows: firstly, being read out to 1# external equipment, then, 1# external equipment is written,
2# external equipment is read out again and then 2# external equipment is written again, next 3# external equipment is read out,
Finally 3# external equipment is written, completes the traversal to access task chain as a result, has executed and has each appointed in access task chain
The corresponding access operation of business node.
Referring to figure 5., Fig. 5 shows a kind of exemplary diagram for accessing task chain provided in an embodiment of the present invention.In Fig. 5, visit
Ask in task chain that one shares 4 task nodes: task node 1, task node 2, task node 3 and task node 4 respectively correspond
Access operation are as follows: 1# external equipment is read out, 2# external equipment is read out, 3# external equipment is written,
1# external equipment is written.Corresponding implementation procedure are as follows: firstly, being read out to 1# external equipment, then, outside 2#
Equipment is read out, next, 3# external equipment is written, finally, 1# external equipment is written, is completed as a result,
To the traversal of access task chain, executes and accessed the corresponding access operation of each task node in task chain.
In present example, the task node in the traversal of processor 10 access task chain, executes each task node pair
The access operation answered, to realize the data interaction between external equipment 20, in order to can continue to next round duty cycle,
Need to terminate epicycle duty cycle after having handled the task node in access task chain, into next round duty cycle, therefore, this
Inventive embodiments further include step S103.
Step S103 terminates epicycle duty cycle and enters next round duty cycle.
It should be noted that access task chain can visit for one of the task in duty cycle, processor 10 in addition to traversal
It asks the task node in task chain, executes the corresponding access operation of each task node, to realize between external equipment 20
Data interaction can also be performed remaining task in addition to 20 access operation of external equipment, and terminate epicycle task after execution
Circulation, into next round duty cycle.Certainly, processor 10 executes remaining task in addition to 20 access operation of external equipment
Opportunity is also possible to before traversal access task chain, and the embodiment of the present invention is not to remaining in addition to 20 access operation of external equipment
The execution opportunity of task is limited, in addition, remaining task in addition to 20 access operation of external equipment can be a task,
It is also possible to the multi-task, the embodiment of the present invention not limits this.
It should also be noted that, this task of task chain can also be only accessed in duty cycle, at this point, processor 10
Task node in traversal access task chain, terminates epicycle duty cycle after executing the corresponding access operation of each task node,
Into next round duty cycle.
In embodiments of the present invention, by the access operation of external equipment 20 be pre-configured with and according to execute sequential organization
At access task chain, processor 10 successively traverses the corresponding access operation of each task node executed in access task chain, with
The prior art is compared, and is had the advantages that
First, the duty cycle in processor 10 carries out overall control, and therefore, processor 10 is without interrupting
Realization is interacted with the data access between external equipment 20, to effectively prevent the system as caused by 10 outage of processor
It unites uncontrollable.
Second, due to can the access operation according to actual needs to external equipment 20 be pre-configured with, can match
Setting property is good, high for the flexibility ratio of scene adaptation.
Third, only access task chain and remaining task in addition to 20 access operation of external equipment in duty cycle, journey
Sequence realizes that simply, execution process is single, and the developer for being easy to different understands, is easy to the maintenance and redevelopment of program.
Second embodiment
Fig. 6 is please referred to, Fig. 6 shows the block diagram of external device access device 200 provided in an embodiment of the present invention.
External device access device 200 includes that at least one can be stored in the memory in the form of software or firmware (firmware)
Software function module in 40.External device access device 200 is applied to processor 10 comprising starts module 201；Execute mould
Block 202；Ending module 203.
Start module 201, for entrance being executed into duty cycle and starting epicycle task after the completion of processor initialization
Circulation.
In embodiments of the present invention, start module 201 for executing step S101.
It is corresponding to execute each task node for successively traversing the task node in access task chain for execution module 202
Access operation is to access corresponding external equipment, wherein each task node is the access operation according to corresponding external equipment
It is pre-configured with, access task chain is that all task nodes are formed according to default execution sequential organization.
In embodiments of the present invention, execution module 202 is for executing step S102.
In embodiments of the present invention, execution module is specifically used for: according to the corresponding external equipment of the task node
Access parameter, the execution duration of access type and access operation execute the corresponding access operation of the task node to access pair
The external equipment answered.
Ending module 203 terminates epicycle task and follows after executing remaining task in addition to external equipment access operation
Ring simultaneously enters next round duty cycle.
In embodiments of the present invention, ending module 203 is for executing step S103.
In conclusion a kind of external device access method, apparatus provided by the invention and processor, the method are applied to
Processor, described includes: to execute entrance after the completion of processor initialization into duty cycle and start epicycle duty cycle；According to
Task node in secondary traversal access task chain, executes the corresponding access operation of each task node and is set with accessing corresponding outside
It is standby, wherein each task node is pre-configured with according to the access operation of corresponding external equipment, and access task chain is all
Business node is formed according to default execution sequential organization.Compared with prior art, the present invention carries out the access operation of external equipment
It is pre-configured with and successively traverses each executed in access task chain at task chain, processor is accessed according to sequential organization is executed
The corresponding access operation of business node, realization is interacted with the data access between external equipment without interrupting, thus
It is uncontrollable to effectively prevent the system as caused by processor outage.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
Claims (11)
1. a kind of external device access method, which is characterized in that be applied to processor, the processor and external equipment and pass through always
Line connection, which comprises
After the completion of processor initialization, entrance is executed into duty cycle and starts epicycle duty cycle；
The successively task node in traversal access task chain executes the corresponding access operation of each task node to access pair
The external equipment answered, wherein each task node is preparatory according to the access operation of the corresponding external equipment
Configuration, the access task chain is that all task nodes are formed according to default execution sequential organization.
2. external device access method as described in claim 1, which is characterized in that each task node includes corresponding
The execution duration of the access parameter of the external equipment, access type and access operation, it is described to execute each task node
The step of corresponding access operation is to access the corresponding external equipment, comprising:
Execution duration according to the access parameter of the corresponding external equipment of the task node, access type and access operation
The corresponding access operation of the task node is executed to access the corresponding external equipment.
3. external device access method as claimed in claim 2, which is characterized in that the access type of the external equipment includes
Read type and write-in type.
4. external device access method as described in claim 1, which is characterized in that the bus is AT96 bus.
5. external device access method as described in claim 1, which is characterized in that in the successively traversal access task chain
Task node, execute the step of corresponding access operation of each task node is to access the corresponding external equipment it
Afterwards, further includes:
Terminate epicycle duty cycle and enters next round duty cycle.
6. a kind of external device access device, which is characterized in that be applied to processor, the processor and external equipment and pass through always
Line connection, described device include:
Start module, after the completion of processor initialization, executes entrance into duty cycle and start epicycle duty cycle；
Execution module, successively the task node in traversal access task chain, executes the corresponding access behaviour of each task node
Make to access the corresponding external equipment, wherein each task node is the visit according to the corresponding external equipment
Ask that operation is pre-configured with, the access task chain is that all task nodes are formed according to default execution sequential organization.
7. external device access device as claimed in claim 6, which is characterized in that each task node includes corresponding
The execution duration of the access parameter of the external equipment, access type and access operation, the execution module are specifically used for:
Execution duration according to the access parameter of the corresponding external equipment of the task node, access type and access operation
The corresponding access operation of the task node is executed to access the corresponding external equipment.
8. external device access device as claimed in claim 7, which is characterized in that the access type of the external equipment includes
Read type and write-in type.
9. external device access device as claimed in claim 6, which is characterized in that the bus is AT96 bus.
10. external device access device as claimed in claim 6, which is characterized in that described device further include:
Ending module, for terminating epicycle duty cycle and entering next round duty cycle.
11. a kind of processor, which is characterized in that the processor is connect with external equipment by bus, the processor with deposit
Reservoir communication；
Memory, for storing one or more programs, when one or more of programs are executed by the processor, so that
The processor realizes method according to any one of claims 1 to 5.
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| CN201910261655.7A CN109977047A (en) | 2019-04-02 | 2019-04-02 | External device access method, apparatus and processor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910261655.7A CN109977047A (en) | 2019-04-02 | 2019-04-02 | External device access method, apparatus and processor |
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| US20040054836A1 (en) * | 2002-09-18 | 2004-03-18 | Cheng-Shing Lai | Method of data access by simulating an external device to be a hard disk drive |
| CN1801125A (en) * | 2004-12-31 | 2006-07-12 | 英业达股份有限公司 | Peripheral operation event response processing method and system for computer |
| CN102693193A (en) * | 2012-04-26 | 2012-09-26 | 重庆重邮信科通信技术有限公司 | Interrupt auxiliary processing device, real-time system and interrupt processing method |
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