CN104639981A - Television system starting method and television - Google Patents
Television system starting method and television Download PDFInfo
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- CN104639981A CN104639981A CN201510065126.1A CN201510065126A CN104639981A CN 104639981 A CN104639981 A CN 104639981A CN 201510065126 A CN201510065126 A CN 201510065126A CN 104639981 A CN104639981 A CN 104639981A
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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 invention discloses a television system starting method, which is characterized by comprising the following steps of dividing a Flash storage space into a plurality of function modules according to the mapping relationship between a visual address and a physical address built by an executable file in a Flash; unzipping and loading the boot code of the executable file into a memory, and dividing the corresponding position in the memory storage space for the corresponding function module according to the divided function modules in the Flash storage space; jumping into a main circulation from the boot code, and entering into the main circulation. The invention further discloses a television. The television system starting method and the television have the advantages that the boot time is reduced, and the user experience is improved.
Description
Technical field
The present invention relates to TV domain, particularly relate to television system open method and TV.
Background technology
Along with the continuous upgrading of TV functions, in TV, increasing function is added in television system as relevant functional module, also become more and more various and huge to making television system, from the initial combination simply controlling to present multiple function, the setup code increased in system initialization also becomes more and more, can cause like this occurring the overlong time of picture from starting shooting to by remote controller, in addition, if insert the memory device such as USB flash disk, SD card before start, the time that picture appears in start can be increased again.Therefore, how reducing the available machine time of television system, is a problem demanding prompt solution.
Summary of the invention
Main purpose of the present invention is to provide a kind of television system open method and TV, is intended to solve television system available machine time long problem.
For achieving the above object, the invention provides a kind of television system open method, described television system open method comprises step:
The virtual address set up according to the executable file in Flash and the mapping relations of physical address, be divided into several functional modules by Flash memory space;
The start-up code of the described executable file of decompress(ion) is loaded in internal memory, according to the functional module that Flash memory space divides, the relevant position of memory storage space is divided into corresponding functional module;
Jump to major cycle from start-up code, enter major cycle.
Preferably, described according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, comprise before Flash memory space being divided into the step of several functional modules:
If detect, the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
Preferably, described executable file comprises file header, described according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, the step that Flash memory space is divided into several functional modules is comprised:
Compile described executable file, divide Flash memory space;
According to the File header information of described executable file, obtain amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generate corresponding functional module;
The executable file compiled is compressed, and sets up the mapping relations between virtual address and physical address.
Preferably, the described virtual address according to executable file foundation in Flash and physical address map, comprise after Flash memory space being divided into the step of several functional modules:
If judge there is unallocated idle block in Flash, then compression process is not carried out to idle block.。
Preferably, the described start-up code by the described executable file of decompress(ion) is loaded in internal memory, and according to the functional module that Flash memory space divides, the step relevant position of memory storage space being divided into corresponding functional module comprises:
According to the discharge order of the functional module of Flash memory space, correspondence arrangement is carried out to the functional module of memory storage space.
In order to solve above-mentioned technical problem, the present invention further provides a kind of TV, described TV comprises:
Divide module, for according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, Flash memory space is divided into several functional modules;
Load-on module, for loading the start-up code of the described executable file in Flash in internal memory, by memory-mapped to zero-address, according to the functional module that Flash memory space divides, divides corresponding functional module to the relevant position of memory storage space;
Redirect module, for jumping to major cycle from start-up code, enters major cycle.
Preferably, described TV also comprises:
Detection module, if for detecting that the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
Preferably, described load-on module comprises:
Division unit, for compiling described executable file, divides Flash memory space;
Generation unit, for the File header information according to described executable file, obtains amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generates corresponding functional module;
Map unit, for compressing the executable file compiled, and sets up the mapping relations between virtual address and physical address.
Preferably, described TV also comprises:
Determination module, if for judging there is unallocated idle block in Flash, then do not carry out compression process to idle block.
Preferably, described load-on module, also for the discharge order of the functional module according to Flash memory space, carries out correspondence arrangement to the functional module of memory storage space.
Television system open method of the present invention, the virtual address set up according to the executable file in Flash and the mapping relations of physical address, be divided into several functional modules by Flash memory space; The start-up code of the described executable file of decompress(ion) is loaded in internal memory, according to the functional module that Flash memory space divides, the relevant position of memory storage space is divided into corresponding functional module; Jump to major cycle from start-up code, enter major cycle.The present invention reduces the available machine time, promotes Consumer's Experience.
Accompanying drawing explanation
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 comprises file header for executable file described in Fig. 1, and the mapping relations of the described virtual address set up according to the executable file in Flash and physical address, are divided into the refinement schematic flow sheet of the step of several functional modules by Flash memory space;
Fig. 4 is the schematic flow sheet of television system open method the 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 of the present invention 3rd embodiment.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of television system open method, be the schematic flow sheet of television system open method one embodiment of the present invention with reference to Fig. 1, Fig. 1, in a first embodiment, described television system open method, comprising:
Step S100, the virtual address set up according to the executable file in Flash and the mapping relations of physical address, be divided into several functional modules by Flash memory space.
Flash (Flash Memory, flash memory), is called fast wiping type memory, be also called flash memory, comprise NOR Flash and NAND Flash, in the present embodiment, be described with NOR Flash, the NOR Flash of a 8M is often in units of block, every block is generally 64K, successively adds up, and write and the erasing of code are all in units of block, wherein very large requirement be there is no for storage data, and support that partial write, part erasing and part load.Be stored in Flash by the executable file compressed, in executable file, set up the mapping relations of virtual address and physical address, according to described address mapping relation, block memory space in Flash is redefined in logic, Flash memory space is divided into several functional modules, and arranges in sequence, such as be divided into A, B, C, D tetra-functional modules from top to bottom successively.
Step S200, the start-up code of the described executable file of decompress(ion) is loaded in internal memory, according to the functional module that Flash memory space divides, the relevant position of memory storage space is divided into corresponding functional module.
(also start-up loading device is claimed through boot loader, boot) start-up code guiding after, executable file is loaded on internal memory successively after physical address decompresses, according to some functional modules that Flash memory space divides successively, in the relevant position of memory storage space, be divided into the functional module of corresponding order equally.Such as memory storage space is also divided into A, B, C, D tetra-functional modules from top to bottom successively.
Step S300, jump to major cycle from start-up code, enter major cycle.
Boot loader start-up code starts redirect, realizes the transfer of ACTIVE CONTROL power, by the control right transfer of start-up code in major cycle, makes major cycle have control; Major cycle code initializes, all functions module sets up communication, all devices realize communication, all basic underlying variables initialization, guarantees that basic communication is normal; Enter major cycle, by the switching of signal source, the foundation of basic sequential, realize the normal output of TV signal.
The television system open method that the present embodiment provides, FLASH memory space is distributed, and the distribution of memory storage space is planned, realize the high degree of symmetry of FLASH memory space to memory storage space, according to the result of reality test, available machine time was brought up to 10 seconds by original 15 seconds, decreases the available machine time of television system, the competitive advantage of improving product.
As shown in Figure 2, Fig. 2 is the schematic flow sheet of television system open method second embodiment of the present invention, and on the basis of the first embodiment, the television system open method that the second embodiment provides, comprises before described step S100:
If step S100A detects that the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
In order to save cost, the executable file be stored in Flash generally all adopts the method for compression to store, and compression ratio is generally at about 19 times, the analysis found that, if certain part is not through overcompression, can compares in the process loaded and save time, such as font file, the file of the file of an about 2.6M and an about 800K, can save the time of about 2 seconds in loading procedure, in the present embodiment, if detect, the memory capacity of Flash is when preset capacity threshold scope is outer, namely when Flash still has enough memory spaces, then compression process is not carried out to the partial document in the described executable file be stored in Flash, described partial document can be mass file, such as FRAMEBUFFER (frame buffering) file, for the part that function is corresponding, the complete correspondence of order can be reached by amendment compiling file, according to the principle of memory fetches, first relevant data can be looked for from buffer memory, if current data is at buffer memory, then Flash can not be visited again, and there are the data of some pre-stored each time, when data link up and matched, the probability of access cache will become very high, and at least more than the time of access cache 2 times of the time of at every turn accessing Flash, so by the optimization of said structure, reach time saving object.
The television system open method that the present embodiment provides, if detect, the memory capacity of Flash is when preset capacity threshold scope is outer, then compression process is not carried out to the partial document in the described executable file be stored in Flash, make full use of the space of memory to improve starting up speed.
As shown in Figure 3, the refinement schematic flow sheet that Fig. 3 is step S200 described in Fig. 1, in the present embodiment, step S200 comprises:
Step S210, compile described executable file, divide Flash memory space.
In the present embodiment, described executable file is binary executable (BIN), compiling executable file, Flash memory space is divided, such as Flash memory space is divided into several logical partitions, logical partition comprises main partition and from subregion, the first subregion can be set as main partition.
Step S220, File header information according to described executable file, obtain amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generate corresponding functional module.
According to the File header information of described executable file, obtain the version number of the parameter of each functional module to be divided in Flash, amount of capacity, initial address and executable file, each functional module in Flash is divided successively according to the order of sequence, until divided all functions module in Flash, in order to save cost, in the functional module in the end divided, place some customer parameters.Such as: Part I physical address and Part II physical address can be obtained from the File header information of executable file, in the physical address 0x00--0x1F of Part I, the date of dbase and generation is defined; In the physical address 0x20--0x4F of Part II, define each compiling generate initial address and the size of link part.Particularly, in the physical address of Part I, initial address is 0x100, and size is 0x0CB0, and load address is 0x9F078000, and School Affairs is 0x0003A325; In the physical address of Part II, initial address is 0x02000, and size is 0x01C84200, and load address is 0x80100000, and School Affairs is 0x00E92BFF.Size according to Part II can be known, Part II reality is made up of A functional module and B functional module.
Step S230, the executable file compiled carried out to compression process, and set up the mapping relations between virtual address and physical address.
Executable file after having compiled is compressed, and between virtual address and physical address, set up a kind of mapping relations, the side-play amount of a this mapping relations address often, thus according to executable file, the load information of virtual address can be obtained.
The television system open method that the present embodiment provides, according to the compiling of executable file, to realize the high degree of symmetry of FLASH memory space to memory storage space, according to the result of reality test, available machine time was brought up to 10 seconds by original 15 seconds, decrease the available machine time of television system, the competitive advantage of improving product.
As described in Figure 4, Fig. 4 is the schematic flow sheet of television system open method the 3rd embodiment of the present invention, on the basis of the first embodiment, comprises after described step S100:
If step S200A judges there is unallocated idle block in Flash, then compression process is not carried out to idle block.
The memory space of Flash is identified, if determine FLASH memory space to also have unallocated idle block, then to not carrying out compression process between free area, thus realizing the comprehensive utilization of Flash memory space, solving the overlong time problem of system loads.
The television system open method that the present embodiment provides, by the comprehensive utilization to Flash memory space, decreases 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 a first embodiment, described TV comprises:
Divide module 10, for according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, Flash memory space is divided into several functional modules;
Load-on module 20, for loading the start-up code of the described executable file in Flash in internal memory, by memory-mapped to zero-address, according to the functional module that Flash memory space divides, divides corresponding functional module to the relevant position of memory storage space;
Redirect module 30, for jumping to major cycle from start-up code, enters major cycle.
Flash (Flash Memory, flash memory), is called fast wiping type memory, be also called flash memory, comprise NOR Flash and NAND Flash, in the present embodiment, be described with NOR Flash, the NOR Flash of a 8M is often in units of block, every block is generally 64K, successively adds up, and write and the erasing of code are all in units of block, wherein very large requirement be there is no for storage data, and support that partial write, part erasing and part load.Be stored in Flash by the executable file compressed, divide module 10 and pass through executable file, set up the mapping relations of virtual address and physical address, according to described address mapping relation, block memory space in Flash is redefined in logic, Flash memory space is divided into several functional modules, and arranges in sequence, such as be divided into A, B, C, D tetra-functional modules from top to bottom successively.
(also start-up loading device is claimed through boot loader, boot) start-up code guiding after, executable file is loaded on internal memory by load-on module 20 successively after physical address decompresses, according to some functional modules that Flash memory space divides successively, in the relevant position of memory storage space, be divided into the functional module of corresponding order equally.Such as memory storage space is also divided into A, B, C, D tetra-functional modules from top to bottom successively.
Redirect module 30 redirect from boot loader start-up code, realizes the transfer of ACTIVE CONTROL power, by the control right transfer of start-up code in major cycle, makes major cycle have control; Major cycle code initializes, all functions module sets up communication, all devices realize communication, all basic underlying variables initialization, guarantees that basic communication is normal; Enter major cycle, by the switching of signal source, the foundation of basic sequential, realize the normal output of TV signal.
The TV that the present embodiment provides, FLASH memory space is distributed, and the distribution of memory storage space is planned, realize the high degree of symmetry of FLASH memory space to memory storage space, according to the result of reality test, available machine time was brought up to 10 seconds by original 15 seconds, decreases the available machine time of television system, the competitive advantage of improving product.
As described in Figure 6, Fig. 6 is the schematic flow sheet of TV second embodiment of the present invention, and on the basis of the first embodiment, described TV also comprises:
Detection module 40, if for detecting that the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
In order to save cost, the executable file be stored in Flash generally all adopts the method for compression to store, and compression ratio is generally at about 19 times, the analysis found that, if certain part is not through overcompression, can compares in the process loaded and save time, such as font file, the file of the file of an about 2.6M and an about 800K, can save the time of about 2 seconds in loading procedure, in the present embodiment, if detection module 40 detects that the memory capacity of Flash is outside preset capacity threshold scope, namely when Flash still has enough memory spaces, then compression process is not carried out to the partial document in the described executable file be stored in Flash, described partial document can be mass file, such as FRAMEBUFFER (frame buffering) file, for the part that function is corresponding, the complete correspondence of order can be reached by amendment compiling file, according to the principle of memory fetches, first relevant data can be looked for from buffer memory, if current data is at buffer memory, then Flash can not be visited again, and there are the data of some pre-stored each time, when data link up and matched, the probability of access cache will become very high, and at least more than the time of access cache 2 times of the time of at every turn accessing Flash, so by the optimization of said structure, reach time saving object.
The TV that the present embodiment provides, if detect, the memory capacity of Flash is when preset capacity threshold scope is outer, then compression process is not carried out to the partial document in the described executable file be stored in Flash, make full use of the space of memory to 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, and in the present embodiment, described load-on module 20 comprises:
Division unit 21, for compiling described executable file, divides Flash memory space;
Generation unit 22, for the File header information according to described executable file, obtains amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generates corresponding functional module;
Map unit 23, for compressing the executable file compiled, and sets up the mapping relations between virtual address and physical address.
In the present embodiment, described executable file is binary executable (BIN), division unit 21 compiles executable file, Flash memory space is divided, such as Flash memory space is divided into several logical partitions, described logical partition comprises main partition and from subregion, the first subregion can be set as main partition.
Generation unit 22 is according to the File header information of described executable file, obtain the version number of the parameter of each functional module to be divided in Flash, amount of capacity, initial address and executable file, each functional module in Flash is divided successively according to the order of sequence, until divided all functions module in Flash, in order to save cost, in the functional module in the end divided, place some customer parameters.Such as: Part I physical address and Part II physical address can be obtained from the File header information of executable file, in the physical address 0x00--0x1F of Part I, the date of dbase and generation is defined; In the physical address 0x20--0x4F of Part II, define each compiling generate initial address and the size of link part.Particularly, in the physical address of Part I, initial address is 0x100, and size is 0x0CB0, and load address is 0x9F078000, and School Affairs is 0x0003A325; In the physical address of Part II, initial address is 0x02000, and size is 0x01C84200, and load address is 0x80100000, and School Affairs is 0x00E92BFF.Size according to Part II can be known, Part II reality is made up of A functional module and B functional module.
Map unit 23 is compressed the executable file after having compiled, and between virtual address and physical address, set up a kind of mapping relations, the side-play amount of a this mapping relations address often, thus according to executable file, the load information of virtual address can be obtained.
The TV that the present embodiment provides, according to the compiling of executable file, to realize the high degree of symmetry of FLASH memory space to memory storage space, according to the result of reality test, available machine time was brought up to 10 seconds by original 15 seconds, decrease the available machine time of television system, the competitive advantage of improving product.
As described in Figure 8, Fig. 8 is the schematic flow sheet of TV of the present invention 3rd embodiment, and on the basis of the first embodiment, described TV also comprises:
Determination module 50, if for judging there is unallocated idle block in Flash, then do not carry out compression process to idle block.
The memory space of determination module 50 couples of Flash identifies, if determine FLASH memory space to also have unallocated idle block, then to not carrying out compression process between free area, thus realizing the comprehensive utilization of Flash memory space, solving the overlong time problem of system loads.
The TV that the present embodiment provides, by the comprehensive utilization to Flash memory space, decreases the time of system loads.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a television system open method, is characterized in that, described television system open method comprises step:
The virtual address set up according to the executable file in Flash and the mapping relations of physical address, be divided into several functional modules by Flash memory space;
The relevant position of memory storage space, in internal memory, according to the functional module that Flash memory space divides, is divided into corresponding functional module by decompress(ion) the start-up code loading described executable file;
Jump to major cycle from start-up code, enter major cycle.
2. television system open method as claimed in claim 1, it is characterized in that, described according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, comprise before Flash memory space being divided into the step of several functional modules:
Carry out compression process to described executable file, if detect, the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
3. television system open method as claimed in claim 1 or 2, it is characterized in that, described executable file comprises file header, described according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, the step that Flash memory space is divided into several functional modules is comprised:
Compile described executable file, divide Flash memory space;
According to the File header information of described executable file, obtain amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generate corresponding functional module;
The executable file compiled is compressed, and sets up the mapping relations between virtual address and physical address.
4. television system open method as claimed in claim 1 or 2, is characterized in that, the described virtual address according to executable file foundation in Flash and physical address map, comprise after Flash memory space being divided into the step of several functional modules:
If judge there is unallocated idle block in Flash, then compression process is not carried out to idle block.
5. television system open method as claimed in claim 1 or 2, it is characterized in that, the described start-up code by the described executable file of decompress(ion) is loaded in internal memory, according to the functional module that Flash memory space divides, the step relevant position of memory storage space being divided into corresponding functional module comprises:
According to the discharge order of the functional module of Flash memory space, correspondence arrangement is carried out to the functional module of memory storage space.
6. a TV, is characterized in that, described TV comprises:
Divide module, for according to the virtual address of executable file foundation in Flash and the mapping relations of physical address, Flash memory space is divided into several functional modules;
Load-on module, the start-up code for the described executable file by decompress(ion) is loaded in internal memory, according to the functional module that Flash memory space divides, the relevant position of memory storage space is divided into corresponding functional module;
Redirect module, for jumping to major cycle from start-up code, enters major cycle.
7. TV as claimed in claim 6, it is characterized in that, described TV also comprises:
Detection module, if for detecting that the memory capacity of Flash is when preset capacity threshold scope is outer, then do not carry out compression process to the partial document in the described executable file be stored in Flash.
8. TV as claimed in claims 6 or 7, it is characterized in that, described load-on module comprises:
Division unit, for compiling described executable file, divides Flash memory space;
Generation unit, for the File header information according to described executable file, obtains amount of capacity and the initial address of each functional module to be generated in the Flash memory space divided, generates corresponding functional module;
Map unit, for compressing the executable file compiled, and sets up the mapping relations between virtual address and physical address.
9. TV as claimed in claims 6 or 7, it is characterized in that, described TV also comprises:
Determination module, if for judging there is unallocated idle block in Flash, then do not carry out compression process to idle block.
10. TV as claimed in claims 6 or 7, is characterized in that, described load-on module, also for the discharge order of the functional module according to Flash memory space, carries out correspondence arrangement to the functional module of memory storage space.
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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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| CN104111894A (en) * | 2014-07-17 | 2014-10-22 | 记忆科技(深圳)有限公司 | Method for improving multi-partition sequential read-write performance and system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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