CN104639981B - Television system open method and TV - Google Patents
Television system open method and TV Download PDFInfo
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- CN104639981B CN104639981B CN201510065126.1A CN201510065126A CN104639981B CN 104639981 B CN104639981 B CN 104639981B CN 201510065126 A CN201510065126 A CN 201510065126A CN 104639981 B CN104639981 B CN 104639981B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The virtual address and the mapping relations of physical address established the invention discloses a kind of television system open method, the executable file in Flash, several functional modules are divided into by Flash memory spaces；The relevant position of memory storage space, according to the functional module of Flash memory spaces division, is divided into corresponding functional module by the startup code for decompressing and loading the executable file into internal memory；Major cycle is jumped to from code is started, into major cycle.The invention also discloses a kind of TV.The present invention reduces the available machine time, lifts Consumer's Experience.
Description
Technical field
The present invention relates to TV domain, more particularly to television system open method and TV.
Background technology
With the continuous upgrading of TV functions, increasing function is added into by the functional module as correlation in TV
Into television system, to making television system also become more and more various and huge, from initial simple control till now multinomial
The combination of function, increased setup code also becomes more and more in system initialization, can so cause from by remote control
Start shooting to there is the overlong time of picture, in addition, if inserting the storage devices such as USB flash disk, SD card before start, can increase again and hold
There is the time of picture in machine.Therefore, the available machine time of television system how is reduced, is a urgent problem to be solved.
The content of the invention
It is a primary object of the present invention to provide a kind of television system open method and TV, it is intended to solve television system and open
The problem of machine overlong time.
To achieve the above object, the present invention provides a kind of television system open method, the television system open method bag
Include step：
The virtual address and the mapping relations of physical address that executable file in Flash is established, Flash is stored
Space is divided into several functional modules；
The startup code of the executable file of decompression is loaded into internal memory, divided according to Flash memory spaces
Functional module, the relevant position of memory storage space is divided into corresponding functional module；
Major cycle is jumped to from code is started, into major cycle.
Preferably, the virtual address and the mapping relations of physical address that the executable file in Flash is established,
Include before the step of Flash memory spaces are divided into several functional modules：
If detect that Flash memory capacity is outside preset capacity threshold scope, to the institute being stored in Flash
The partial document stated in executable file is handled without compression.
Preferably, the executable file includes file header, and the executable file in Flash is established virtual
Address and the mapping relations of physical address, the step of Flash memory spaces are divided into several functional modules, include：
The executable file is compiled, divides Flash memory spaces；
According to the File header information of the executable file, obtain to be generated each in the Flash memory spaces of division
The amount of capacity and initial address of functional module, functional module corresponding to generation；
The executable file completed to compiling is compressed, and establishes the pass of the mapping between virtual address and physical address
System.
Preferably, the virtual address and physical address map established according to executable file in Flash, by Flash
Memory space includes after being divided into the step of several functional modules：
If it is determined that there is unallocated idle block in Flash, then idle block is handled without compression..
Preferably, the startup code of the executable file by decompression is loaded into internal memory, is stored according to Flash
Space division functional module, by the relevant position of memory storage space be divided into corresponding to functional module the step of include：
According to the discharge order of the functional module of Flash memory spaces, the functional module of memory storage space is carried out pair
It should arrange.
In order to solve above-mentioned technical problem, the present invention further provides a kind of TV, the TV includes：
Division module, the virtual address established for the executable file in Flash and the mapping of physical address are closed
System, several functional modules are divided into by Flash memory spaces；
Load-on module, the startup code for loading the executable file in Flash map internal memory into internal memory
To zero-address, the functional module divided according to Flash memory spaces, to work(corresponding to the relevant position division of memory storage space
Can module；
Jump module, for jumping to major cycle from startup code, into major cycle.
Preferably, the TV also includes：
Detection module, if during for detecting that Flash memory capacity is outside preset capacity threshold scope, to storage
The partial document in the executable file in Flash is handled without compression.
Preferably, the load-on module includes：
Division unit, for compiling the executable file, divide Flash memory spaces；
Generation unit, for the File header information according to the executable file, in the Flash memory spaces for obtaining division
The amount of capacity and initial address of each functional module to be generated, functional module corresponding to generation；
Map unit, the executable file for being completed to compiling is compressed, and establishes virtual address and physical address
Between mapping relations.
Preferably, the TV also includes：
Determination module, for if it is determined that there is unallocated idle block in Flash, then to idle block without compression at
Reason.
Preferably, the load-on module is additionally operable to the discharge order according to the functional module of Flash memory spaces, to internal memory
The functional module of memory space carries out corresponding arrangement.
Television system open method of the present invention, virtual address that executable file in Flash is established and physically
The mapping relations of location, Flash memory spaces are divided into several functional modules；By the startup of the executable file of decompression
Code is loaded into internal memory, the functional module divided according to Flash memory spaces, the relevant position of memory storage space is divided
For corresponding functional module；Major cycle is jumped to from code is started, into major cycle.The present invention reduces the available machine time, and lifting is used
Experience at family.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of television system open method first embodiment of the present invention；
Fig. 2 is the schematic flow sheet of television system open method second embodiment of the present invention；
Fig. 3 is that executable file described in Fig. 1 includes file header, what the executable file in Flash was established
The mapping relations of virtual address and physical address, the refinement for the step of Flash memory spaces are divided into several functional modules
Schematic flow sheet；
Fig. 4 is the schematic flow sheet of television system open method 3rd embodiment of the present invention；
Fig. 5 is the high-level schematic functional block diagram of TV first embodiment of the present invention；
Fig. 6 is the high-level schematic functional block diagram of TV second embodiment of the present invention；
Fig. 7 is the high-level schematic functional block diagram of load-on module described in Fig. 5；
Fig. 8 is the high-level schematic functional block diagram of TV 3rd embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of television system open method, and reference picture 1, Fig. 1 is television system open method one of the present invention
The schematic flow sheet of embodiment, in the first embodiment, the television system open method, including：
Step S100, the virtual address and the mapping relations of physical address that the executable file in Flash is established, will
Flash memory spaces are divided into several functional modules.
Flash (Flash Memory, flash memory), referred to as fast wiping type memory, also known as flash memory, including NOR
Flash and NAND Flash, in the present embodiment, illustrated with NOR Flash, 8M NOR Flash are often with block
For unit, every piece of generally 64K, gradually add up, the write-in and erasing of code are all in units of block, wherein for data storage
Without very big requirement, and support section write-in, part erasing and part load.The executable file compressed is stored in
In Flash, in executable file, virtual address and the mapping relations of physical address are established, according to the address mapping relation,
Block memory space in Flash is redefined in logic, Flash memory spaces are divided into several function moulds
Block, and arranged in sequence, such as tetra- functional modules of A, B, C, D are in turn divided into from top to bottom.
Step S200, the startup code of the executable file of decompression is loaded into internal memory, stored according to Flash empty
Between the functional module that divides, the relevant position of memory storage space is divided into corresponding functional module.
After the guiding for starting code by boot loader (also referred to as start-up loading device, bootstrap), executable file according to
It is loaded onto after the secondary decompression from physical address in internal memory, some functional modules divided successively according to Flash memory spaces, inside
The relevant position of memory space is deposited, is equally divided into the functional module of corresponding order.For example memory storage space is from top to bottom
It is in turn divided into tetra- functional modules of A, B, C, D.
Step S300, major cycle is jumped to from startup code, into major cycle.
Boot loader start code and start to redirect, and realize the transfer of active control power, and the control for starting code is turned
Move on in major cycle, major cycle is possessed control；Major cycle code initializes, and all functional modules establish communication, Suo Youqi
Part realizes communication, the initialization of all basic underlying variables, it is ensured that basic communication is normal；Into major cycle, pass through the switching of signal source, base
The foundation of this sequential, realize the normal output of TV signal.
The television system open method that the present embodiment provides, is allocated to FLASH memory spaces, and to memory storage
The distribution planning in space, realizes FLASH memory spaces to the high degree of symmetry of memory storage space, according to the result of actual test,
Available machine time was brought up to 10 seconds by original 15 seconds, reduces the available machine time of television system, lifts the competitive advantage of product.
As shown in Fig. 2 Fig. 2 is the schematic flow sheet of television system open method second embodiment of the present invention, it is real first
On the basis of applying example, the television system open method of second embodiment offer, the step S100 includes before：
If step S100A, detect that Flash memory capacity is outside preset capacity threshold scope, to being stored in
The partial document in the executable file in Flash is handled without compression.
In order to save cost, the executable file being stored in Flash is typically all stored using the method for compression, and
And compression ratio the analysis found that typically at 19 times or so, if certain is a part of not through overcompression, the meeting during loading
It is relatively time-consuming, such as font file, 2.6M or so file and 800K or so file, in loading procedure
The time of 2 seconds or so can be saved；In the present embodiment, if detecting Flash memory capacity in preset capacity threshold model
When enclosing outer, i.e. when Flash still has enough memory spaces, then the portion to being stored in the executable file in Flash
Single cent part is handled without compression, and the partial document can be mass file, such as FRAMEBUFFER (frame buffering) file,
For part corresponding to function phase, the complete correspondence of order can be reached by changing compiling file, according to memory fetches
Principle, the data of correlation can be looked for from caching first, if current data is caching, Flash will not be visited again, and often
Once there are some pre-stored data, in the case of and matched coherent in data, the probability of access cache will become
Must be very high, and the time for accessing Flash every time is at least more 2 times than the time of access cache, so passing through the excellent of said structure
Change, reached time saving purpose.
The television system open method that the present embodiment provides, if detecting Flash memory capacity in preset capacity threshold
When being worth outside scope, then the partial document being stored in the executable file in Flash is handled without compression, fully profit
Starting up speed is improved in memory-aided space.
As shown in figure 3, Fig. 3 is the refinement schematic flow sheet of step S200 described in Fig. 1, and in the present embodiment, step
S200 includes：
Step S210, the executable file is compiled, divides Flash memory spaces.
In the present embodiment, the executable file is binary executable (BIN), compiles executable file, right
Flash memory spaces are divided, such as Flash memory spaces are divided into several logical partitions, and logical partition includes master
Subregion and from subregion, can be set as main partition by the first subregion.
Step S220, according to the File header information of the executable file, obtain to be generated in the Flash memory spaces of division
Into each functional module amount of capacity and initial address, functional module corresponding to generation.
According to the File header information of the executable file, obtain each functional module to be divided in Flash parameter,
The version number of amount of capacity, initial address and executable file, each functional module in Flash is sequentially drawn successively
Point, until having divided all functional modules in Flash, in order to save cost, in the functional module finally divided, place one
A little customer parameters.Such as：Part I physical address and Part II thing can be obtained from the File header information of executable file
Address is managed, in the physical address 0x00--0x1F of Part I, defines the date of dbase and generation；At second
In the physical address 0x20--0x4F divided, initial address and size that each compiling generates link part are defined.Specifically,
In the physical address of Part I, initial address 0x100, size 0x0CB0, load address 0x9F078000, verification
With for 0x0003A325；In the physical address of Part II, initial address 0x02000, size 0x01C84200, loading
Address is 0x80100000, verification and be 0x00E92BFF.According to the size of Part II it is recognised that Part II it is actual by
A functional modules and B functional modules composition.
Step S230, the executable file completed to compiling is compressed processing, and establishes virtual address and physical address
Between mapping relations.
Executable file after the completion of compiling is compressed, and one kind is established between virtual address and physical address
Mapping relations, this mapping relations are often the offset of an address, so as to according to executable file, you can are obtained virtually
The load information of location.
The television system open method that the present embodiment provides, according to the compiling of executable file, to realize that FLASH storages are empty
Between arrive memory storage space high degree of symmetry, according to the result of actual test, the available machine time was brought up to 10 by original 15 seconds
Second, reduce the available machine time of television system, lift the competitive advantage of product.
As described in Figure 4, Fig. 4 is the schematic flow sheet of television system open method 3rd embodiment of the present invention, real first
On the basis of applying example, include after the step S100：
Step S200A, if it is determined that there is unallocated idle block in Flash, then idle block is handled without compression.
Flash memory space is identified, if determining FLASH memory spaces also has unallocated idle block,
Then idle section is handled without compression, so as to realize the comprehensive utilization of Flash memory spaces, to solve system loads
Overlong time problem.
The television system open method that the present embodiment provides, by the comprehensive utilization to Flash memory spaces, reduces
The time of system loads.
As shown in figure 5, Fig. 5 is the high-level schematic functional block diagram of TV first embodiment of the present invention, and in the first embodiment, institute
Stating TV includes：
Division module 10, the virtual address established for the executable file in Flash and the mapping of physical address
Relation, Flash memory spaces are divided into several functional modules；
Load-on module 20, the startup code for loading the executable file in Flash reflect internal memory into internal memory
Zero-address is mapped to, the functional module divided according to Flash memory spaces, to corresponding to the relevant position division of memory storage space
Functional module；
Jump module 30, for jumping to major cycle from startup code, into major cycle.
Flash (Flash Memory, flash memory), referred to as fast wiping type memory, also known as flash memory, including NOR
Flash and NAND Flash, in the present embodiment, illustrated with NOR Flash, 8M NOR Flash are often with block
For unit, every piece of generally 64K, gradually add up, the write-in and erasing of code are all in units of block, wherein for data storage
Without very big requirement, and support section write-in, part erasing and part load.The executable file compressed is stored in
In Flash, division module 10 establishes virtual address and the mapping relations of physical address, according to described by executable file
Location mapping relations, the block memory space in Flash is redefined in logic, if Flash memory spaces are divided into
Dry functional module, and arranged in sequence, such as tetra- function moulds of A, B, C, D are in turn divided into from top to bottom
Block.
After starting the guiding of code by boot loader (also referred to as start-up loading device, bootstrap), load-on module 20 will
Executable file is loaded onto in internal memory after physical address decompression successively, is divided successively according to Flash memory spaces some
Functional module, in the relevant position of memory storage space, equally it is divided into the functional module of corresponding order.For example memory storage is empty
Between be also in turn divided into tetra- functional modules of A, B, C, D from top to bottom.
Jump module 30 redirects since boot loader start code, realizes the transfer of active control power, will start generation
The control right transfer of code makes major cycle possess control into major cycle；Major cycle code is initialized, and all functional modules are established
Communication, the initialization of all basic underlying variables are realized in communication, all devices, it is ensured that basic communication is normal；Into major cycle, pass through signal
The switching of source, the foundation of basic sequential, realize the normal output of TV signal.
The TV that the present embodiment provides, is allocated to FLASH memory spaces, and the distribution rule to memory storage space
Draw, realize FLASH memory spaces to the high degree of symmetry of memory storage space, according to the result of actual test, by the available machine time by
15 seconds originally are brought up to 10 seconds, reduce the available machine time of television system, lift the competitive advantage of product.
As described in Figure 6, Fig. 6 is the schematic flow sheet of TV second embodiment of the present invention, on the basis of first embodiment,
The TV also includes：
Detection module 40, if during for detecting that Flash memory capacity is outside preset capacity threshold scope, to depositing
The partial document stored up in the executable file in Flash is handled without compression.
In order to save cost, the executable file being stored in Flash is typically all stored using the method for compression, and
And compression ratio the analysis found that typically at 19 times or so, if certain is a part of not through overcompression, the meeting during loading
It is relatively time-consuming, such as font file, 2.6M or so file and 800K or so file, in loading procedure
The time of 2 seconds or so can be saved；In the present embodiment, if detection module 40 detects Flash memory capacity preset
Outside capacity threshold scope, i.e. when Flash still has enough memory spaces, then the executable text to being stored in Flash
Partial document in part is handled without compression, and the partial document can be mass file, such as (frame delays FRAMEBUFFER
Punching) file, for part corresponding to function phase, the complete correspondence of order can be reached by changing compiling file, according to storage
The principle of device access evidence, the data of correlation can be looked for from caching, if current data is caching, will not be visited again first
Flash, and have some pre-stored data each time, in the case of and matched coherent in data, access cache
Probability will become very high, and the time for accessing Flash every time is at least more 2 times than the time of access cache, so passing through
The optimization of said structure, time saving purpose is reached.
The TV that the present embodiment provides, if detect that Flash memory capacity is outside preset capacity threshold scope,
The partial document being stored in the executable file in Flash is handled without compression, makes full use of the sky of memory
Between improve starting up speed.
As described in Figure 7, Fig. 7 is the high-level schematic functional block diagram of load-on module described in Fig. 5, in the present embodiment, described to add
Carrying module 20 includes：
Division unit 21, for compiling the executable file, divide Flash memory spaces；
Generation unit 22, for the File header information according to the executable file, obtain the Flash memory spaces of division
In each functional module to be generated amount of capacity and initial address, functional module corresponding to generation；
Map unit 23, the executable file for being completed to compiling are compressed, and establish virtual address and physically
Mapping relations between location.
In the present embodiment, the executable file is binary executable (BIN), and the compiling of division unit 21 can be held
Style of writing part, is divided to Flash memory spaces, such as Flash memory spaces are divided into several logical partitions, described to patrol
Collecting subregion includes main partition and from subregion, the first subregion can be set as into main partition.
Generation unit 22 obtains each function to be divided in Flash according to the File header information of the executable file
The parameter of module, amount of capacity, the version number of initial address and executable file, to each functional module in Flash according to
It is secondary sequentially to be divided, until all functional modules have been divided in Flash, in order to save cost, in the function of finally dividing
In module, some customer parameters are placed.Such as：Part I physical address can be obtained from the File header information of executable file
With Part II physical address, in the physical address 0x00--0x1F of Part I, dbase and generation are defined
Date；In the physical address 0x20--0x4F of Part II, the initial address that each compiling generates link part is defined
And size.Specifically, in the physical address of Part I, initial address 0x100, size 0x0CB0, load address is
0x9F078000, verification and be 0x0003A325；In the physical address of Part II, initial address 0x02000, size is
0x01C84200, load address 0x80100000, verification and be 0x00E92BFF.It can be known according to the size of Part II
Road, Part II are actually made up of A functional modules and B functional modules.
Map unit 23 is compressed to the executable file after the completion of compiling, and virtual address and physical address it
Between establish a kind of mapping relations, this mapping relations are often the offset of an address, so as to according to executable file, you can
Obtain the load information of virtual address.
The TV that the present embodiment provides, according to the compiling of executable file, to realize FLASH memory spaces to memory storage
The high degree of symmetry in space, according to the result of actual test, the available machine time was brought up to 10 seconds by original 15 seconds, reduces TV
The available machine time of system, lift the competitive advantage of product.
As described in Figure 8, Fig. 8 is the schematic flow sheet of TV 3rd embodiment of the present invention, on the basis of first embodiment,
The TV also includes：
Determination module 50, for if it is determined that having unallocated idle block in Flash, then to idle block without compression
Processing.
Flash memory space is identified determination module 50, if determine FLASH memory spaces also have it is unallocated
Idle block, then idle section is handled without compression, so as to realize the comprehensive utilization of Flash memory spaces, to solve
The overlong time problem of system loads.
The TV that the present embodiment provides, by the comprehensive utilization to Flash memory spaces, reduce system loads when
Between.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of television system open method, it is characterised in that the television system open method includes step：
The virtual address and the mapping relations of physical address that executable file in Flash is established, by Flash memory spaces
It is divided into several functional modules；
Decompress and load the startup code of the executable file into internal memory, the function mould divided according to Flash memory spaces
Block, the relevant position of memory storage space is divided into corresponding functional module；
Major cycle is jumped to from code is started, into major cycle.
2. television system open method as claimed in claim 1, it is characterised in that the executable text in Flash
The virtual address and the mapping relations of physical address that part is established, Flash memory spaces are divided into the step of several functional modules
Include before rapid：
Processing is compressed to the executable file, if detecting Flash memory capacity in preset capacity threshold scope
When outer, then the partial document being stored in the executable file in Flash is handled without compression.
3. television system open method as claimed in claim 1 or 2, it is characterised in that the executable file includes file
Head, the virtual address and the mapping relations of physical address that the executable file in Flash is established, Flash is stored
Space, which is divided into the step of several functional modules, to be included：
The executable file is compiled, divides Flash memory spaces；
According to the File header information of the executable file, each function to be generated in the Flash memory spaces of division is obtained
The amount of capacity and initial address of module, functional module corresponding to generation；
The executable file completed to compiling is compressed, and the mapping relations established between virtual address and physical address.
4. television system open method as claimed in claim 1 or 2, it is characterised in that described literary according to can perform in Flash
The virtual address and physical address map that part is established, after the step of Flash memory spaces are divided into several functional modules
Including：
If it is determined that there is unallocated idle block in Flash, then idle block is handled without compression.
5. television system open method as claimed in claim 1 or 2, it is characterised in that described by the described executable of decompression
The startup code of file is loaded into internal memory, the functional module divided according to Flash memory spaces, by the phase of memory storage space
The step of answering position to be divided into corresponding functional module includes：
According to the discharge order of the functional module of Flash memory spaces, corresponding row is carried out to the functional module of memory storage space
Row.
6. a kind of TV, it is characterised in that the TV includes：
Division module, the virtual address and the mapping relations of physical address established for the executable file in Flash will
Flash memory spaces are divided into several functional modules；
Load-on module, for the startup code of the executable file of decompression to be loaded into internal memory, stored according to Flash empty
Between the functional module that divides, the relevant position of memory storage space is divided into corresponding functional module；
Jump module, for jumping to major cycle from startup code, into major cycle.
7. TV as claimed in claim 6, it is characterised in that the TV also includes：
Detection module, if during for detecting that Flash memory capacity is outside preset capacity threshold scope, to being stored in
The partial document in the executable file in Flash is handled without compression.
8. TV as claimed in claims 6 or 7, it is characterised in that the load-on module includes：
Division unit, for compiling the executable file, divide Flash memory spaces；
Generation unit, for the File header information according to the executable file, obtain to be generated in the Flash memory spaces of division
Into each functional module amount of capacity and initial address, functional module corresponding to generation；
Map unit, the executable file for being completed to compiling is compressed, and is established between virtual address and physical address
Mapping relations.
9. TV as claimed in claims 6 or 7, it is characterised in that the TV also includes：
Determination module, for if it is determined that there is unallocated idle block in Flash, then being handled without compression idle block.
10. TV as claimed in claims 6 or 7, it is characterised in that the load-on module is additionally operable to store sky according to Flash
Between functional module discharge order, corresponding arrangement is carried out to the functional module of memory storage space.
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| CN201510065126.1A CN104639981B (en) | 2015-02-05 | 2015-02-05 | Television system open method and TV |
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| CN201510065126.1A CN104639981B (en) | 2015-02-05 | 2015-02-05 | Television system open method and TV |
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| CN106445589A (en) * | 2016-09-08 | 2017-02-22 | 百富计算机技术（深圳）有限公司 | Application loading method and apparatus for small embedded system |
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