CN105630644B - The internal-memory detection method and system of micro-control unit in washing machine - Google Patents
The internal-memory detection method and system of micro-control unit in washing machine Download PDFInfo
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- CN105630644B CN105630644B CN201510968628.5A CN201510968628A CN105630644B CN 105630644 B CN105630644 B CN 105630644B CN 201510968628 A CN201510968628 A CN 201510968628A CN 105630644 B CN105630644 B CN 105630644B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/26—Functional testing
- G06F11/267—Reconfiguring circuits for testing, e.g. LSSD, partitioning
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Abstract
The invention discloses the internal-memory detection method and system of micro-control unit in a kind of washing machine, memory includes multiple big region units, this method comprises: each big region unit is divided into continuous N number of zonule block；It detects and whether there is DC Line Fault in N number of zonule block in the block of m-th zonule at least one byte between position and position；If it is not, then the first byte at least one byte in m-th zonule block and (M+1) a zonule block carries out MARCH C operation, to judge between m-th zonule block and (M+1) a zonule block with the presence or absence of DC Line Fault.This method can internally deposit into the comprehensive DC Line Fault detection of row, avoid the generation of missing inspection, and have detection accuracy height, the high advantage of detection efficiency.
Description
Technical field
The present invention relates to fields of home appliance technology, and in particular to the memory detection side of micro-control unit in a kind of washing machine
Method and system.
Background technique
Currently, in order to be authenticated by UL1998 and CLASS B, embedded software is needed to MCU (Micro controller
Unit, micro-control unit) RAM (Random Access Memory, random access memory, it may be assumed that memory) carry out direct current therefore
Hinder DC FAULT detection, to detect that each micro unit of RAM in processor whether there is short circuit or open circuit between each other.Phase
In the technology of pass, the test of standard is to be tested by MARCH C or MARCH X each piece of region.
However, having the following deficiencies: in the related technology
1, since ram space is all bigger, the memory RAM of especially embedded MCU has reached several KB, causes once not
The inspection that can complete entire RAM, generally requires and carries out blockette detection to RAM, but easily occur leak detection between block.
2, it in RAM detection, is generally detected as unit of byte, and each byte is made of 8 bit locations, is led to
It is often to be detected as unit of position, and position detection too expends the time, and then influence the operational efficiency of embedded system.
Summary of the invention
The purpose of the present invention is intended to solve at least some of the technical problems in related technologies.For this purpose, this
First purpose of invention is to propose a kind of internal-memory detection method of micro-control unit in washing machine, and this method can be to memory
Comprehensive DC Line Fault detection is carried out, the generation of missing inspection is avoided, and there is detection accuracy height, the high advantage of detection efficiency.
Second object of the present invention is to propose a kind of memory detection system of micro-control unit in washing machine.
To achieve the above object, in the washing machine of the embodiment of first aspect present invention micro-control unit memory detection side
Method, memory include multiple big region units, and detection method includes the following steps: each big region unit being divided into continuous N number of small
Region unit, wherein each zonule block includes at least one byte, wherein the N is the positive integer greater than 1；Detect the N
It whether there is DC Line Fault between position and position at least one described byte in the block of m-th zonule in a zonule block；If
It is no, then MARCH is carried out to the first byte of at least one byte in m-th zonule block and (M+1) a zonule block
C operation, to judge between m-th zonule block and (M+1) a zonule block with the presence or absence of DC Line Fault.
The internal-memory detection method of micro-control unit in the washing machine of the embodiment of the present invention, by the way that big region unit is divided into N
A zonule block, to detecting whether exist between position and position at least one byte in the m-th zonule block in N number of zonule
DC Line Fault, when being not detected there are when DC Line Fault, by carrying out MARCH C operation to the first byte, further to sentence
It whether there is DC Line Fault between disconnected m-th zonule block and (M+1) a zonule block, it is comprehensive so as to internally deposit into row
DC Line Fault detection, avoid the generation of missing inspection, and have that detection accuracy is high, the high advantage of detection efficiency.
In addition, in washing machine according to the above embodiment of the present invention micro-control unit internal-memory detection method, can also have
There is following additional technical characteristic:
According to one embodiment of present invention, in (M+1) a zonule block at least one byte the first byte
It is adjacent with m-th zonule block.
According to one embodiment of present invention, each zonule block includes 4 bytes.
According to one embodiment of present invention, described in detection N number of zonule block in the block of m-th zonule extremely
It whether there is DC Line Fault between position and position in a few byte, comprising: m-th zonule block is traversed according to constant predetermined amount
The position of interior at least one byte, at least one byte described in the determination m-th zonule block between position and position
With the presence or absence of DC Line Fault.
To achieve the above object, in the washing machine of the embodiment of second aspect of the present invention micro-control unit memory detection system
System, the memory includes multiple big region units, the system comprises: division module, for each big region unit to be divided into company
Continuous N number of zonule block, wherein each zonule block includes at least one byte, wherein the N is the positive integer greater than 1；
Detection module in block, for detecting in N number of zonule block in the block of m-th zonule position and position at least one described byte
Between whether there is DC Line Fault；Detection module between block, for m-th zonule block and (M+1) a zonule block
In at least one byte the first byte carry out MARCH C operation, to judge that m-th zonule block and (M+1) are a small
It whether there is DC Line Fault between region unit.
The memory detection system of micro-control unit in the washing machine of the embodiment of the present invention, by the way that big region unit is divided into N
A zonule block, to detecting whether exist between position and position at least one byte in the m-th zonule block in N number of zonule
DC Line Fault, when being not detected there are when DC Line Fault, by carrying out MARCH C operation to the first byte, further to sentence
It whether there is DC Line Fault between disconnected m-th zonule block and (M+1) a zonule block, it is comprehensive so as to internally deposit into row
DC Line Fault detection, avoid the generation of missing inspection, and have that detection accuracy is high, the high advantage of detection efficiency.
In addition, in washing machine according to the above embodiment of the present invention micro-control unit memory detection system, can also have
There is following additional technical characteristic:
According to one embodiment of present invention, in (M+1) a zonule block at least one byte the first byte
It is adjacent with m-th zonule block.
According to one embodiment of present invention, each zonule block includes 4 bytes.
According to one embodiment of present invention, detection module is used in described piece: traversing the m-th according to constant predetermined amount
The position of at least one byte in the block of zonule, with position at least one byte described in the determination m-th zonule block
It whether there is DC Line Fault between position.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart of the internal-memory detection method of micro-control unit in washing machine according to an embodiment of the invention；
Fig. 2 is the process of the internal-memory detection method of micro-control unit in washing machine in accordance with another embodiment of the present invention
Figure；
Fig. 3 is the structural schematic diagram of the memory detection system of micro-control unit in washing machine according to an embodiment of the present invention.
Description of symbols: the memory detection system 100, division module 10 of micro-control unit, the interior detection of block in washing machine
Detection module 30 between module 20 and block.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings describe the embodiment of the present invention proposition washing machine in micro-control unit internal-memory detection method and
System.The process of the internal-memory detection method of micro-control unit in the washing machine of the embodiment of the present invention is described according to Fig. 1 first
Figure.
Wherein, memory includes multiple big region units, as shown in Figure 1, the detection method may comprise steps of:
S101: each big region unit is divided into continuous N number of zonule block, wherein each zonule block includes at least
One byte, wherein N is the positive integer greater than 1.
Wherein, in one embodiment of the invention, each zonule block may include 4 bytes.
For example, it is carried out in RAM detection in the hypercycle of software, the operation one big block of detection of hypercycle each time
When (RAM of such as 256Bytes), each big block can be divided into continuous 64 by the detection method of the embodiment of the present invention
Zonule block, wherein each zonule block may include 4 bytes.Big region unit is drawn through the embodiment of the present invention
It is divided into multiple small region units, to effectively detect to being divided into small region unit.In an embodiment of the present invention, root
According to software RAM safety detection it is perfect, on this basis by the way that big region unit is carried out being divided into zonule block and can be mentioned
The robustness of high real-time system.
S102: detecting in N number of zonule block whether there is between position and position at least one byte in the block of m-th zonule
DC Line Fault.
Further, in one embodiment of the invention, it detects in N number of zonule block in the block of m-th zonule at least
It whether there is DC Line Fault in one byte between position and position, comprising: traverse in the block of m-th zonule at least according to constant predetermined amount
The position of one byte whether there is DC Line Fault to determine between position and position at least one byte in the block of m-th zonule.
It is understood that in detecting multiple zonule blocks m-th zonule block can be the positions of 4 bytes of detection with
Test between position, and the constant of setting can be used to traverse the feelings for testing whether position failure or mistake in position and position
Condition.In an embodiment of the present invention, it is tested by the traversal between several efficient contrapositions and position, not only can guarantee quick sound
It answers, and improves the operation real-time of system.Wherein, the constant of setting can be configured according to practical situations.
S103: if it is not, then first at least one byte in m-th zonule block and (M+1) a zonule block
Byte carries out MARCH C operation, to judge between m-th zonule block and (M+1) a zonule block with the presence or absence of direct current event
Barrier.
In one embodiment of the invention, the first byte of at least one byte and M in (M+1) a zonule block
A zonule block is adjacent.
To sum up, it is to be understood that the detection method of the embodiment of the present invention is mono- to next RAM of zonule and zonule
First (Byte) total 5Bytes executes MARCH C operation, the i.e. detection of short circuit between progress neighboring community domain block and open circuit.To
It can be avoided generation detection leakage phenomenon, improve the accuracy of detection, it is simple and convenient.
The internal-memory detection method of micro-control unit can refer to first to each block and next block in the washing machine
The MARCH C operation that a byte is overlapped, detect whether having the case where short circuit is with opening a way.
For the ease of it will be understood by those skilled in the art that, be described in detail below with a specific embodiment.
In a specific implementation of the invention, referring to shown in Fig. 2, the detection method of the embodiment of the present invention includes following step
It is rapid:
S201: start；
In other words, start RAM Check (internal-memory detection method).
S202: judge that entire RAM detects whether to terminate, if so, thening follow the steps S203；If not, thening follow the steps
S211。
It is appreciated that operation is further processed according to the result of detection after entire RAM detection.Such as
Judge that entire RAM detection terminates, carry out digital data read-write operation, if entire RAM does not complete detection operation and directly terminates
Program.
S203: two RAM word data of detection arrive AAAA, 00FF, 0F0F, 6C6C by read-write.
By the way that two digital data read-writes into corresponding region, carry out it with this to detect whether read-write matching.
S204: whether detection data read-write matches, if so, thening follow the steps S205, otherwise, executes step S210.
It is appreciated that Data Matching, which can be according to preset constant, carries out traversal detection.
S205: the MARCH C of 5 ram cells is detected.
Carry out the short circuit between the block of neighboring community domain and the detection of open circuit.
S206: detection MARCH C whether there is mistake, if there is mistake, execute step S210, otherwise, execute step
S207。
According to embodiments of the present invention, if detection makes mistake and directly carries out reset operation, if it is not detected that it is wrong into
The operation of row next step.
S207: 2 RAM word data of detection arrive AAAA, 00FF, 0F0F, 6C6C by read-write.
By the way that two digital data read-writes into corresponding region, carry out it with this to detect whether read-write matching.
S208: whether detection data read-write matches, if so, thening follow the steps S209, otherwise, executes step S210.
It is appreciated that Data Matching, which can be according to preset constant, carries out traversal detection.
S209: lower 4 units are directed toward.
S210: Watchdog is waited to reset.
If the program run is when something goes wrong, reset by house dog makes program recovery to initial situation.
S211: terminate.
The internal-memory detection method of micro-control unit in washing machine according to an embodiment of the present invention, by dividing big region unit
At N number of zonule block, to being detected whether between position and position at least one byte in the m-th zonule block in N number of zonule
There are DC Line Fault, when being not detected there are when DC Line Fault, by carrying out MARCH C operation to the first byte, with into one
Step judges with the presence or absence of DC Line Fault between m-th zonule block and (M+1) a zonule block, so as to internally deposit into row
Comprehensive DC Line Fault detection, avoids the generation of missing inspection, and has detection accuracy height, the high advantage of detection efficiency.
The memory detection system of micro-control unit in the washing machine proposed according to embodiments of the present invention is described referring next to attached drawing 3
System.
Fig. 3 is the structural schematic diagram of the memory detection system of micro-control unit in washing machine according to an embodiment of the present invention.
Wherein, memory includes multiple big region units, further as shown in figure 3, the detection system 100 includes: division module
10, detection module 30 between detection module 20 and block in block.
Wherein, division module 10 is used to for each big region unit to be divided into continuous N number of zonule block, wherein Mei Ge little
Region unit includes at least one byte, wherein the N is the positive integer greater than 1.
Wherein, in one embodiment of the invention, each zonule block may include 4 bytes.
For example, it is carried out in RAM detection in the hypercycle of software, the operation one big block of detection of hypercycle each time
When (RAM of such as 256Bytes), each big block can be divided into continuous 64 by the detection method of the embodiment of the present invention
Zonule block, wherein each zonule block may include 4 bytes.Big region unit is drawn through the embodiment of the present invention
It is divided into multiple small region units, to effectively detect to being divided into small region unit.In an embodiment of the present invention, root
According to software RAM safety detection it is perfect, on this basis by the way that big region unit is carried out being divided into zonule block and can be mentioned
The robustness of high real-time system.
Detection module 20 is used to detect in N number of zonule block at least one described word in the block of m-th zonule in block
It whether there is DC Line Fault in section between position and position.
Further, in one embodiment of the invention, detection module 20 is used in block: according to constant predetermined amount traversal the
The position of at least one byte in M zonule block is between position and position at least one byte to determine in the block of m-th zonule
It is no that there are DC Line Faults.
It is understood that in detecting multiple zonule blocks m-th zonule block can be the positions of 4 bytes of detection with
Test between position, and the constant of setting can be used to traverse the feelings for testing whether position failure or mistake in position and position
Condition.In an embodiment of the present invention, it is tested by the traversal between several efficient contrapositions and position, not only can guarantee quick sound
It answers, and improves the operation real-time of system.Wherein, the constant of setting can be configured according to practical situations.
Detection module 300 is used for at least one word in m-th zonule block and (M+1) a zonule block between block
First byte of section carries out MARCH C operation, to judge to be between m-th zonule block and (M+1) a zonule block
It is no that there are DC Line Faults.
In one embodiment of the invention, the first byte of at least one byte and M in (M+1) a zonule block
A zonule block is adjacent.
To sum up, it is to be understood that the detection method of the embodiment of the present invention is mono- to next RAM of zonule and zonule
First (Byte) total 5Bytes executes MARCH C operation, the i.e. detection of short circuit between progress neighboring community domain block and open circuit.To
The comprehensive DC Line Fault detection of row can be internally deposited into, avoids the generation of missing inspection, and have detection accuracy high, detection efficiency is high
Advantage.
The memory detection system of micro-control unit in the washing machine of the embodiment of the present invention, by the way that big region unit is divided into N
A zonule block, to detecting whether exist between position and position at least one byte in the m-th zonule block in N number of zonule
DC Line Fault, when being not detected there are when DC Line Fault, by carrying out MARCH C operation to the first byte, further to sentence
It whether there is DC Line Fault between disconnected m-th zonule block and (M+1) a zonule block, it is comprehensive so as to internally deposit into row
DC Line Fault detection, avoid the generation of missing inspection, and have that detection accuracy is high, the high advantage of detection efficiency.
It should be noted that in the washing machine of the embodiment of the present invention memory detection system of micro-control unit specific implementation
Mode is identical with the specific embodiment of the internal-memory detection method of micro-control unit in the washing machine of the embodiment of the present invention, to reduce
Redundancy is not repeated herein.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (8)
1. the internal-memory detection method of micro-control unit in a kind of washing machine, which is characterized in that the memory includes multiple big regions
Block the described method comprises the following steps:
Each big region unit is divided into continuous N number of zonule block, wherein each zonule block includes at least one byte,
Wherein, the N is the positive integer greater than 1；
Detecting in N number of zonule block whether there is between position and position at least one described byte in the block of m-th zonule
DC Line Fault；
If it is not, then at least one byte in all bytes and (M+1) a zonule block to m-th zonule block
First byte carries out MARCH C operation, to judge whether deposit between m-th zonule block and (M+1) a zonule block
In DC Line Fault.
2. the internal-memory detection method of micro-control unit in washing machine according to claim 1, which is characterized in that (the M
+ 1) the first byte of at least one byte is adjacent with m-th zonule block in a zonule block.
3. the internal-memory detection method of micro-control unit in washing machine according to claim 1, which is characterized in that described each
Zonule block includes 4 bytes.
4. the internal-memory detection method of micro-control unit in washing machine according to claim 1, which is characterized in that the detection
It whether there is DC Line Fault between position and position at least one described byte in the block of m-th zonule in N number of zonule block,
Include:
The position of at least one byte in the block of the m-th zonule is traversed according to constant predetermined amount, it is small with the determination m-th
It whether there is DC Line Fault between position and position at least one described byte in region unit.
5. the memory detection system of micro-control unit in a kind of washing machine, which is characterized in that the memory includes multiple big regions
Block, the system comprises:
Division module, for each big region unit to be divided into continuous N number of zonule block, wherein each zonule block includes
At least one byte, wherein the N is the positive integer greater than 1；
Detection module in block, for detecting in N number of zonule block in the block of m-th zonule position at least one described byte
It whether there is DC Line Fault between position；
Detection module between block, for m-th zonule block all bytes and (M+1) a zonule block at least one
First byte of a byte carries out MARCH C operation, with judge m-th zonule block and (M+1) a zonule block it
Between whether there is DC Line Fault.
6. the memory detection system of micro-control unit in washing machine according to claim 5, which is characterized in that (the M
+ 1) the first byte of at least one byte is adjacent with m-th zonule block in a zonule block.
7. the memory detection system of micro-control unit in washing machine according to claim 5, which is characterized in that described each
Zonule block includes 4 bytes.
8. the memory detection system of micro-control unit in washing machine according to claim 5, which is characterized in that in described piece
Detection module is used for:
The position of at least one byte in the block of the m-th zonule is traversed according to constant predetermined amount, it is small with the determination m-th
It whether there is DC Line Fault between position and position at least one described byte in region unit.
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| CN111611119B (en) * | 2020-05-27 | 2023-04-07 | 合肥工大高科信息科技股份有限公司 | Method and system for realizing on-line self-check of RAM (random Access memory) under real-time operating system |
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| CN101310343A (en) * | 2005-11-14 | 2008-11-19 | 三菱电机株式会社 | Memory diagnosis device |
| CN103455436A (en) * | 2013-09-23 | 2013-12-18 | 北京经纬恒润科技有限公司 | RAM (random access memory) detection method and system |
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