CN103729202A - DSP reliable on-line FLASH programming method based on GEL script - Google Patents

Abstract

The invention belongs to an unmanned plane flying control system and relates to a DSP reliable on-line FLASH programming method based on a GEL script. According to the method, the following processes are automatically achieved through the GEL script, namely a code segment and a data segment of a DSP target project executable file are stored in a local hard disk first, then the code segment and the data segment of the DSP target project executable file in the local hard disk are loaded into a DSP piece external RAM, finally an executable file of a DSP programming FLASH project is loaded into the RAM, the project carries out CRC on the code segment and the data segment which are loaded to the DSP piece external RAM, the checking results are written into the piece external RAM together, then the data segment and the code segment are programmed into a FLASH, a programmed FLASH space is checked, checking results are compared with the checking results in the piece external RAM, if the results are equal, programming is right, otherwise, programming is wrong, and the programming process and the programming results are displayed in a CCS interface.

Description

A kind of reliable online FLASH programming method of DSP based on GEL script

Technical field

The present invention relates to a kind of DSP(digital signal processor) technology, especially a kind of DSP of utilization fires the method for FLASH online.

Background technology

At present, DSP has been widely used in radio communication, speech recognition, multimedia, internet and national defence field with its powerful real time data processing ability.As first releasing the Texas Instruments of first item DSP (Texas Instrument is called for short TI) in the world, constantly weed out the old and bring forth the new especially, improve development environment, with its considerable strength, in the industry cycle obtained the market share of 50% left and right.In the DSP of its numerous money models, TI is classified as the good and promising DSP of the market sales volume three large series and widelys popularize, and TI is also referred to as three large platforms.This three large series DSP is beyond not only hardware configuration, market orientation and application are not quite similar, and as the FLASH storer of its basic configuration, is also each has something to recommend him in line writing mode:

1.TMS320C2000 series, needn't specialize programming software, and the FLASH programming plug-in unit that utilizes TI to provide can be realized very easily FLASH programming in CCS, but only supports FLASH or specific FLASH model that it is built-in, there is no versatility;

2.TMS320C5000 and TMS320C6000 series, does not have the erasable instrument of ready-made FLASH to use, and needs the programming engineering of the own write specialized of developer to realize, but often operation copies loaded down with trivial detailsly, intelligent not, and easily makes mistakes.

Raising due to chip manufacturing process, chip integration is more and more higher, and FLASH storer is also to miniaturization, SMD development, thereby it is difficult to use traditional programmable device to carry out programming programming, therefore, by DSP emulator, undertaken almost becoming unique selection at line writing.

Integrating and developing platform (CCS) the support general extension script (GEL) that TI company provides for DSP exploitation, this is the interpreted language of a kind C, developer can use the function of this script customization and expansion CCS, to meet own specific demand, the design uses GEL script by each link robotization of programming process just, and connect together in order, realize its one-touch intellectualized operation.

Summary of the invention

The object of the invention is: the object of the invention is that curing for DSP program of the prior art exists complex operation, easily makes mistakes, the problem of portability and poor reliability, provide the FLASH of a kind of novel DSP based on GEL script in line writing scheme.

Technology contents of the present invention is: a kind of reliable online FLASH programming method of DSP based on GEL script, comprises following steps:

Step 1. is loaded into GEL script file in CCS, the executable file of DSP target engineering is loaded into by emulator in the internal memory of DSP, then by the GEL_MemorySave function in the GEL script loading, the code segment of target engineering and data segment is read and is saved in local computing hard disk.

Step 2. is called GEL_MemoryLoad function and by emulator, the code segment in local computing hard disk and data segment is loaded in the outer RAM of DSP sheet.

Step 3. is called GEL_Load function the coff file of programming FLASH in local computing hard disk is loaded in DSP internal memory, then calls GEL_Run function and controls its operation.

GEL function in described above 3 steps integrates by GEL key word hotmenu, realizes operating in a key.

Advantage of the present invention is:

Use improved three remaining flight control computer board monitoring form annual reporting laws provided by the present invention, have following advantage:

1, improve hardware resource utilization

Fault detail can be navigated to reception buffer zone fault and still send buffer fault, only excise out of order hardware capability parts, and the hardware capability parts that do not break down can continue to use, can because of the fault of a hardware component, not cause healthy functional part cut, improve to greatest extent the utilization factor of hardware resource, correspondingly improved stability, the safety and reliability of whole system;

1, automatically perform each step of programming, save set time

Traditional DSP is carrying out FLASH while solidifying, the flashburn plug-in unit providing except C2000 series YouTI company can directly be used, all that software developer oneself writes FLASH programming engineering, then manual operations step by step, first target engineering binary file is led on computer hard disc by hand, again in the manual datarams space that imports DSP or use instrument convert thereof into specific format compiling link together with programming engineering, then with programming engineering, be loaded in DSP memory headroom, then programming is in the formulation address space of FLASH, the present invention uses GEL script that all steps are cascaded in order, automatically complete whole process, saved set time,

2, simple to operate clear, do not need to possess dsp software development Experience

DSP was carrying out FLASH while solidifying in the past, because manual operations entirely need to have certain understanding and experience to dsp software Development Engineering, so the FLASH of DSP solidifies and oneself completed by dsp software developer substantially.The novel curing operating in a key of FLASH of having realized of this use, does not need the experience and the professional knowledge that possess dsp software exploitation can be cured work yet;

3, utilize the CRC check inspection of programming data source and target, guaranteed the reliability of solidification process

FLASH programming process consists of suddenly a series of small steps, must guarantee correctly, and the consistance of programming file destination and source file, this is its most basic principle.CRC check is the error-check that a kind of maturation is general, is widely used in the communications field.This use is novel carries out CRC check and inspection to source file and fixed line to the file destination in FLASH in programming process, guarantees correctness and the reliability of whole programming process.

Accompanying drawing explanation

The automatic programming schematic flow sheet of Fig. 1 FLASH;

Fig. 2 FLASH programming schematic diagram;

Fig. 3 embodiment of the present invention process flow diagram.

Embodiment

DSP program Solidification method of the present invention specifically comprises following steps:

Step 1. is loaded into the general target formatted file (COFF) that needs programming to generate to the target engineering compiling link in FLASH in the memory headroom of DSP in CCS; The GEL function access DSP internal memory that uses GEL wscript.exe that CCS provides to provide, reads out the code segment of target engineering and data segment respectively, with the form of data file, is kept in computer hard disc;

Step 2. is used another GEL function that imports fixed disk file these two data Piece file mergences to be imported to later in the non-start-up code memory headroom of DSP, now, the code segment of target engineering and data segment are by the complete internal storage data space that has imported to DSP, and they can be used as data and are accessed by DSP;

Step 3., by loading GEL function, is loaded into the binary file carried out of being responsible for programming FLASH in the startup memory headroom of DSP, treats programming data area internal memory and carries out CRC check, and CRC check result is write in last unit of this internal memory; By GEL function, control the code of dsp operation programming FLASH, according to treating programming datarams area size, wipe FLASH, and the internal storage data region for the treatment of programming is all write in FLASH; Programming is carried out to CRC check to the data in FLASH, check that whether programming is correct, and echo result upgrade programming journal file;

Above step is all called GEL canonical function by GEL script and is automatically realized, do not need manual intervention, after this script is finished writing, form with menu button is integrated in CCS development environment, developer only need to click this button in the GEL of CCS expanded menu hurdle, just can automatically complete the function of FLASH programming and CRC check.

Claims (2)

1. the reliable online FLASH programming method of the DSP based on GEL script, is characterized in that, comprises following steps:

Step 1. is loaded into GEL script file in CCS, the executable file of DSP target engineering is loaded into by emulator in the internal memory of DSP, then by the GEL_MemorySave function in the GEL script loading, the code segment of target engineering and data segment is read and is saved in local computing hard disk;

Step 2. is called GEL_MemoryLoad function and by emulator, the code segment in local computing hard disk and data segment is loaded in the outer RAM of DSP sheet;

Step 3. is called GEL_Load function the coff file of programming FLASH in local computing hard disk is loaded in DSP internal memory, then calls GEL_Run function and controls its operation.

2. the reliable online FLASH programming method of a kind of DSP based on GEL script as claimed in claim 1, is characterized in that, comprises following steps:

GEL function in described above 3 steps integrates by GEL key word hotmenu, realizes operating in a key.

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