CN109683985A - A kind of more image starting methods of DSP based on AIS order - Google Patents

A kind of more image starting methods of DSP based on AIS order Download PDF

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Publication number
CN109683985A
CN109683985A CN201811552079.3A CN201811552079A CN109683985A CN 109683985 A CN109683985 A CN 109683985A CN 201811552079 A CN201811552079 A CN 201811552079A CN 109683985 A CN109683985 A CN 109683985A
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China
Prior art keywords
image
ais
order
program
dsp
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CN201811552079.3A
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CN109683985B (en
Inventor
刘盟超
韩帅
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CETC 54 Research Institute
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CETC 54 Research Institute
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/445—Program loading or initiating
    • G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading

Abstract

The invention discloses a kind of more image starting methods of DSP based on AIS order, for solving the problems, such as more image startings of DSP digital information processing system.Technical solution is, according to user demand, multiple image files to be addressed and selected by more image program starting algorithms, by parsing AIS order, by it from the program storage for the DSP that external memory is loaded into, and is executed automatically.The present invention utilizes more image program starting algorithms, carries out flexible selectivity to multiple image files and executes, the heavy duty and switching of DSP program are realized according to different user demands, improves the versatility, adaptability and maintainability of digital information processing system.

Description

A kind of more image starting methods of DSP based on AIS order
Technical field
The present invention relates to digital signal processing technique fields, open more particularly to a kind of more mirror images of the DSP based on AIS order Dynamic method.
Background technique
AIS is the abbreviation using mirror image script (Application Image Script), is a kind of for mirror image load With the specific command collection of operation.The program starting mould that can receive AIS order is generally integrated in digital signal processing chip (DSP) Block completes that operation is loaded and started using mirror image when powering on.The usual function of these starting modules is relatively simple, can only be from fixation Address is read unique mirror image and is executed, and cannot achieve more image startings, can not also carry out the function of mirrored storage addressing of address Energy.It is applied with the development of digital technology with diversification, more and more digital information processing systems require DSP to realize double-mirror Or more image startings, it selects suitably to be started from multiple mirror images in each task execution according to different use demands And execution, to adapt to diversified application demand.This requires the program starting modules of DSP to have from multiple application mirror images The function of being addressed and select, and the included program starting module of DSP realizes these functions, it is therefore desirable to one kind flexibly may be used The more image starting methods of the DSP of configuration.
Summary of the invention
Aiming at the shortcomings in the prior art, the present invention provides a kind of more mirror images of DSP that flexibly can configure based on AIS order Starting method.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of more image starting methods of DSP based on AIS order, comprising the following steps:
Step 1: loading automatically and execute more image program startup programs: the mirror image in more image program startup programs File powers on the image file of default load as DSP, is stored in the home address space of DSP external memory；
Step 2: executing mirror image selection strategy: a mirror in more image program startup program selection image file groups As file is as current image file；The mirror image selection strategy is formulated according to user's use demands, and is integrated into more mirror image journeys In sequence startup program；Image file group includes 1 and converts the mirror comprising AIS order for application program above according to user demand As file；Each image file is stored in the address space of DSP external memory without overlapping；Each image file is equal It is made using AIS design tool；
Step 3: load images file；The storage address of current image file is determined in DSP external memory；Reading is worked as Preceding image file；
Step 4: detecting whether to receive AIS order, if so, turning to step 5；Otherwise step step 4 is turned to；
Step 5: parsing AIS order: more image program startup programs complete current image file by parsing AIS order It loads and controls DSP automatic running；Turn to step 4.
Preferably, above-mentioned steps 5 specifically includes the following steps:
When being resolved to AIS order " program block loads (Section Load) ", more image program startup programs will be corresponded to Image file block read by external memory into internal processes memory space；
When being resolved to AIS order " enabled CRC check (Enable CRC) ", more image program startup programs enable mirror image The cyclic check of file encodes (CRC)；
When being resolved to AIS order " closing CRC check (Disable CRC) ", more image program startup programs close mirror As the cyclic check of file encodes (CRC)；
When being resolved to AIS order " verifying CRC check (Validate CRC) ", more image program startup programs are to from outer The image file that portion's memory is read carries out cyclic check coding (CRC), and by the coding result ratio in coding result and file It to verifying, is verified, continues to execute Next Command, the image file and again otherwise read again from external memory Verifying；
When being resolved to AIS order " program block fills (Section Fill) ", more image program startup programs will be specified Internal processes memory space be filled with the content of AIS order request；
When being resolved to AIS order " (Function Execute) is arranged in function ", more image program startup programs are to DSP Inner function module carries out Initialize installation；
When being resolved to AIS order " jump and terminate (Jump&Close) ", more image program startup programs terminate currently The operation of program, and the program pointer of DSP (PC) is jumped into user application operation.
The beneficial effects of the present invention are: the present invention is addressed and selects according to user demand, to multiple image files, root The heavy duty and switching that DSP application program is realized according to different user demands improve the versatility of digital information processing system, adapt to Property and maintainability.
Detailed description of the invention
Fig. 1 is more image program startup program flow charts of the embodiment of the present invention；
Specific embodiment
Embodiment 1:
Below in conjunction with the attached drawing of the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this Embodiment in invention, those of ordinary skill in the art's every other embodiment obtained belong to the model that the present invention protects It encloses.
A kind of more image starting methods of DSP based on AIS order, comprising the following steps:
Step 1: loading automatically and execute more image program startup programs: the mirror image in more image program startup programs File powers on the image file of default load as DSP, is stored in the home address space of DSP external memory；
Step 2: executing mirror image selection strategy: a mirror in more image program startup program selection image file groups As file is as current image file；The mirror image selection strategy is formulated according to user's use demands, and is integrated into more mirror image journeys In sequence startup program；Image file group includes 1 and converts the mirror comprising AIS order for application program above according to user demand As file；Each image file is stored in the address space of DSP external memory without overlapping；Each image file is equal It is made using AIS design tool；
Step 3: load images file；The storage address of current image file is determined in DSP external memory；Reading is worked as Preceding image file；
Step 4: detecting whether to receive AIS order, if so, turning to step 5；Otherwise step step 4 is turned to；
Step 5: parsing AIS order: more image program startup programs complete current image file by parsing AIS order It loads and controls DSP automatic running；Turn to step 4.
DSP program is compiled using AIS design tool and is produced by either user program or more image program startup programs Raw * .out file is converted into binary image file * .bin；
Image file should store DSP external memory, wherein the image file in more image program startup programs should be deposited Store up the initial address of external memory, i.e. address 0；Other users program image file stores other ground to non-initial address Location space.
More image program startup programs complete the load to image file and control DSP to transport automatically by parsing AIS order Row, should include the parsing to issue orders:
A, " program block load (Section Load) ": image file block is read to store into internal processes by external memory In space；
B, " enabled CRC check (Enable CRC) ": the cyclic check of enabled image file encodes (CRC)；
C, it " closes CRC check (Disable CRC) ": closing the cyclic check coding (CRC) of image file；
D, " verifying CRC check (Validate CRC) ": cyclic check coding (CRC) and contrast verification are carried out, to obstructed The blocks of files for crossing verifying is re-read；
E, specified internal processes memory space " program block filling (Section Fill) ": is filled with order request Content；
F, Initialize installation " (Function Execute) is arranged in function ": is carried out to DSP inner function module；
G, it " jumps and terminates (Jump&Close) ": terminating the operation of present procedure, and the program pointer of DSP (PC) is jumped Go to user application operation；
4, image file is to order to end up with " jump and terminate (Jump&Close) ", therefore parse " Jump&Close " life After order, DSP terminates more image program startup programs, and jumps to user application operation.

Claims (2)

1. a kind of more image starting methods of DSP based on AIS order, which comprises the following steps:
Step 1: loading automatically and execute more image program startup programs: the image file in more image program startup programs The image file that default load is powered on as DSP, is stored in the home address space of DSP external memory；
Step 2: executing mirror image selection strategy: a mirror image text in more image program startup program selection image file groups Part is as current image file；The mirror image selection strategy is formulated according to user's use demands, and is integrated into more image programs and is opened In dynamic program；Image file group includes 1 and converts application program to the mirror image text comprising AIS order above according to user demand Part；Each image file is stored in the address space of DSP external memory without overlapping；Each image file utilizes The production of AIS design tool；
Step 3: load images file；The storage address of current image file is determined in DSP external memory；Read current mirror As file；
Step 4: detecting whether to receive AIS order, if so, turning to step 5；Otherwise step step 4 is turned to；
Step 5: parsing AIS order: more image program startup programs complete the load of current image file by parsing AIS order And control DSP automatic running；Turn to step 4.
2. a kind of more image starting methods of DSP based on AIS order according to claim 1, which is characterized in that the step Rapid 5 comprising the following specific steps
When being resolved to AIS order " program block load (Section Load) ", more image program startup programs are by corresponding mirror As blocks of files is read by external memory into internal processes memory space；
When being resolved to AIS order " enabled CRC check (Enable CRC) ", more image program startup programs enable image file Cyclic check encode (CRC)；
When being resolved to AIS order " closing CRC check (Disable CRC) ", more image program startup programs close mirror image text The cyclic check of part encodes (CRC)；
When being resolved to AIS order " verifying CRC check (Validate CRC) ", more image program startup programs are deposited to from outside The image file that reservoir is read carries out cyclic check coding (CRC), and coding result is compared with the coding result in file and is tested Card, is verified, continues to execute Next Command, and the image file otherwise read again from external memory is simultaneously verified again；
When being resolved to AIS order " program block fill (Section Fill) ", more image program startup programs will be specified in Portion's program's memory space is filled with the content of AIS order request；
When being resolved to AIS order " (Function Execute) is arranged in function ", more image program startup programs are to the inside DSP Functional module carries out Initialize installation；
When being resolved to AIS order " jump and terminate (Jump&Close) ", more image program startup programs terminate present procedure Operation, and by the program pointer of DSP (PC) jump to user application operation.
CN201811552079.3A 2018-12-19 2018-12-19 DSP multi-image starting method based on AIS command Active CN109683985B (en)

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