CN102043654A - DSP simple development method based on TMS320VC55xx - Google Patents
DSP simple development method based on TMS320VC55xx Download PDFInfo
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Abstract
The invention discloses a DSP simple development method based on TMS320VC55xx, which is used for simple debugging and system upgrading for an embedded system program based on DSP, and comprises the following steps: finishing autonomous running of the program through a start loading mode of a Bootloader; and finishing works of debugging and updating the program through a download mode of the Bootloader. The DSP simple development method based on TMS320VC55xx implements simple debugging and fast upgrading of the DSP program, and can perform simply debug the program and update the system without using a simulator, so that cost on development is effectively reduced, labor cost in later stage is saved, and a convenient and cheap implementing method for DSP embedded development is provided.
Description
Technical field
The present invention relates to a kind of DSP program easy development method, particularly a kind ofly can break away from emulator and debug, upgrade and the easy development method of autonomous load operating DSP program.
Background technology
At current embedded dsp development field, ubiquity long, problems such as development difficulty is big, development cost height of construction cycle.Tracing it to its cause is that embedded development is different from common pc program development, and cross development environment is adopted in the exploitation of embedded software usually.So-called cross development environment is meant the set of all tool software that are used for embedded software developing, generally comprises instruments such as text editor, cross-compiler, intersection debugger, emulator and downloader.The embedded system development flow process is generally as follows at present: generating on host can be for debugging or the target program that solidifies; Finish the debugging work of software by the intersection debugger; Program Solidification to target machine, is realized the Automatic Program operation when target machine powers on or reset.
In the embedded-type ARM exploitation,, the debugging and the renewal of program also often existed more flexible solution because the support of operating system is arranged.Such as the easy development that can realize breaking away from emulator by softwares such as u-boot, vivi substantially.And in the DSP embedded exploitation, the debug phase developer adopts the form of jtag emulator to finish relevant work usually.In the support that when FLASH solidifies refresh routine, also often needs emulator.This has increased cost of development undoubtedly, has reduced the simplicity of safeguarding.
Therefore, at deficiency of the prior art, needing badly provides a kind of convenient, DSP development approach cheaply.
Summary of the invention
The objective of the invention is to avoid weak point of the prior art and a kind of DSP program easy development method based on TMS320VC55xx is provided, make the debugging of DSP program, renewal can break away from emulator, reduced cost of development and manual service cost.
Purpose of the present invention realizes by following technical measures:
A kind of DSP program easy development method based on TMS320VC55xx is provided, finish simple and easy debugging and renewal work by the Bootloader program to user program, described Bootloader program includes start-up loading pattern and downloading mode, described start-up loading pattern is finished the autonomous operation of program, and described downloading mode is finished the debugging and the renewal work of program; Behind system power-on reset, the boot program that is solidificated in the dsp chip can load the Bootloader program, and do not have button then can enter the start-up loading pattern this moment in 5 seconds, otherwise enter downloading mode.
Wherein, the generation of described user program includes following steps:
Steps A: the compiling link source program generates file destination on host;
Step B: use the hex crossover tool that the file destination of steps A is converted to boottable sheet format file;
Step C: the boottable sheet format file of step B is handled the generation image file.
Wherein, described start-up loading pattern loads user program according to the form of boottable.
Wherein, whenever read 16KB in the process of described loading user program and will carry out page turning, described page turning is to control Flash high address line by cpld.
Wherein, described downloading mode includes:
Load module is used to receive order and parameter from the terminal input;
Check module, be used for the legitimacy of sense command and parameter;
Processing module is used for according to the corresponding handling procedure of different command execution;
Output module is used for to terminal output for information about.
Concrete, described load module is according to the universal asynchronous serial host-host protocol, to store among the buffer that applies for the internal memory from the order and the parameter of terminal input, baud rate adopts 11520, one start bits, 8 data bit, no parity position, a position of rest.
Concrete, described inspection module is by reading order and the parameter among the buffer, and distinguish according to the space, according to the character string constant that pre-defines order is mated then, if do not match then directly enter described output module, show error message,, under the errorless situation of parameter, enter described processing module if the match is successful then checks parameter according to specific instructions.
Concrete, described processing module is finished processing according to the corresponding function of command calls, the corresponding subfunction of each described order, and described function parameters is the parameter of the corresponding command.
Concrete, described output module prints to relevant information on the terminal according to the state of prior module.
Wherein, described order and parameter are: command arg1 arg2 arg3 ..., the wherein corresponding order of command representative, argn is an optional parameter, relevant with specific instructions, separate with the space between command and the arg, also separate between the described parameter with the space.
Beneficial effect of the present invention:
A kind of DSP program easy development method of the present invention based on TMS320VC55xx, finish simple and easy debugging and renewal work by the Bootloader program to user program, described Bootloader program includes start-up loading pattern and downloading mode, behind system power-on reset, the boot program that is solidificated in the dsp chip can load the Bootloader program, do not have button then can enter start-up loading pattern as if in the 5s this moment, otherwise enter downloading mode.The present invention has realized the simple and easy debugging of dsp program and upgrading fast, make the curing of program can break away from emulator, avoid plugging in the code solidification process emulator and unloaded the damage that DSP equipment causes, making does not have DSP development Experience personnel can finish the curing of program yet, thereby effectively reduce cost of development, save the cost of labor in later stage, for the DSP embedded development provides convenient, cheap implementation method.
Description of drawings
The present invention will be further described to utilize accompanying drawing, but the content in the accompanying drawing does not constitute any limitation of the invention.
Fig. 1 is the entire system software and hardware structure block diagram of embodiments of the invention 2;
Fig. 2 is the workflow diagram of the Bootloader of embodiments of the invention 2;
Fig. 3 is the Bootloader start-up loading model process figure of embodiments of the invention 2.
Embodiment
Embodiment 1
A kind of DSP program easy development method based on TMS320VC55xx of the present invention is to finish simple and easy debugging and renewal work to user program by the Bootloader program, the Bootloader program includes start-up loading pattern and downloading mode, the start-up loading pattern is finished the autonomous operation of program, and downloading mode is finished the debugging and the renewal work of program.
Development environment comprises: a host, a Target Board.Host is that a pc machine comprises operating system, Integrated Development Environment, terminal program; Target machine is a veneer, comprises hardware and bootloader and debugged programs such as dsp processor, Flash, SDRARM, FPGA, UART, button, pilot lamp.Host and Target Board communicate by serial ports.
In the present embodiment, bootloader program and debugged program will generate according to the boottable sheet format, specifically realize by following steps:
Steps A: the compiling link source program generates file destination on host;
Step B: use the hex crossover tool that file destination is converted to the tabular file of boottable;
Step C: this document is handled the .dat file that generation ccs Integrated Development Environment is supported, the .dat file is the file that needs.
The Bootloader program is placed on the 0th page of Flash, and user program begins to deposit for the 1st page from Flash.
In the present embodiment, the bootloader program comprises two kinds of mode of operations: Bootloader start-up loading pattern and Bootloader downloading mode.
Behind system power-on reset, the boot program that is solidificated in the dsp chip can load the Bootloader program, and do not have button then can enter start-up loading pattern as if in the 5s this moment, otherwise enter downloading mode.
Concrete, Bootloader start-up loading pattern mainly realizes the electrification reset self-starting of program, is the groundwork pattern after the product issue.
Concrete, the Bootloader downloading mode is mainly realized the debugging and the update functions of program.
More specifically, the concrete steps of Bootloader start-up loading pattern are: the entry address of at first reading user program from the 0th page of Flash according to the boottable tableau format; Then read register configuration and time-delay; In fetch program each section then; When running through whole file, jump to the entry address at last and begin to carry out user program.
One page in said process in running through Flash will carry out page turn over operation, and Flash is connected with dsp by cpld, and every 16KB is one page.
In the present embodiment, the Bootloader downloading mode can provide a simple command line interface to its terminal user by serial communication, to realize functions such as program debug, internal memory, register are checked, file download, and can be at the output statement in the hyper terminal explicit user program, to reach simple debug function.Basic format at the command line interface input command is: command arg1 arg2 arg3 ..., the wherein corresponding order of command representative, argn is an optional parameter, and is relevant with specific instructions.Separate with the space between command and the arg, also separate between the parameter with the space.Basic order has:
Go addr: the initial program of operation addr;
Boot: enter bootloader start-up loading pattern;
Loadb addr: use the kermit agreement to download binary file to the addr section start by serial ports;
Cmp addr1 addr2 count: relatively whether identical with the region of memory of the initial count size of addr1 and addr2;
Cp source target count: the internal storage data that source is initial is copied to the target place, and count represents size;
Md addr [count]: show that count represents size, is defaulted as 1 with the initial internal storage data of addr;
Rd reg: the content of display register reg, reg is the address of register;
Era start end: Flash is wiped from start to end, the corresponding sector start address of start, the corresponding sector of end end address, full wafer flash is wiped in era all representatives especially.
In the present embodiment, as embodiment preferred, the Bootloader downloading mode includes load module, checks module, processing module and output module.Wherein, load module is used for receiving from the order and the parameter of terminal input, checks that module is used for the legitimacy of sense command and parameter, if non-rule enters output module, to the terminal output error message.After guaranteeing that the input of order and parameter is errorless, enter processing module, according to the corresponding handling procedure of different command execution, after disposing, enter output module, for information about to terminal output.
Further, load module according to the universal asynchronous serial host-host protocol, will store among the buffer that applies for the internal memory from the order and the parameter of terminal input, and baud rate adopts 11520, one start bits, 8 data bit, no parity position, a position of rest.
Further, check module, read order and parameter among the buffer, and distinguish according to the space, according to the character string constant that pre-defines order is mated then,, show error message if do not match then directly enter output module, if the match is successful then checks parameter according to specific instructions, under the errorless situation of parameter, enter processing module.
Further, processing module, the corresponding subfunction of each order, function parameters is the parameter of the corresponding command.Finish processing according to the corresponding function of command calls.
Further, output module, the state according to prior module prints to relevant information on the terminal.
Embodiment 2
Embodiments of the invention 2 as shown in Figure 1 to Figure 3, debugging by an example program and upgrading come that the present invention will be further described.
In experiment, adopt 16 fixed-point DSP chip TMS320VC5509A of Texas Instruments, hereinafter to be referred as 5509a.Its PGE packing forms has only 14 address buss (A0～A13), the Flash storer that maximum can only addressing 16 KB.If want the bigger address space of addressing, will control the high address line of Flash storer.For this reason by CPLD at the CE2 of DSP spatial simulation Flash register FPR that skips.Flash adopts the AM29LV320DB120 of AMD.
(1) debugging of program
As shown in Figure 1, wherein shown entire system software and hardware structure block diagram, finished simple and easy debugging by Bootloader and hyper terminal as we know from the figure, finished communicating by letter of host and target machine by Serial Port Line to debugged program.The program that at first will need to debug generates according to the boottable tableau format, concrete steps are: the .out file that generates the debugged program of wanting in the ccs Integrated Development Environment, because the .out form can not be discerned by Bootloader, therefore need change by the data-switching instrument hex55 that TI provides.Then the target machine electrification reset starts, and then is solidificated in the interior boot program of dsp chip and can loads our Bootloader program, and any button of pressing then on the target machine enters the Bootloader downloading mode.Input loadb 0x4000 transmits debugged file in hyper terminal by the kermit agreement then.Treat that debugged file transfer finishes, input go 0x4000 moves debugged program, according to the running status of the output information determining program of program, wait by internal memory operation order such as cmp, md in the zone that may go wrong and to check internal storage data, to determine the potential mistake of program.Get back to then among the ccs and to revise source code and re-execute said process.
(2) upgrading of program
When program need be upgraded, the program that at first will need to upgrade downloaded in the target machine internal memory method described in the debugging of the visible program of concrete steps.Use the era command erases will deposit the Flash sector of refresh routine then,, then wipe the sector from 0x040000 to 0x047FFF as era 0x040000 0x047FFF.Use then cp order with file from memory copying to the flash respective bins.Last restarting systems enters bootloader start-up loading pattern, loads program after the renewal according to Fig. 3 and Fig. 4.
Claims (10)
1. DSP easy development method based on TMS320VC55xx, it is characterized in that: finish simple and easy debugging and renewal work user program by the Bootloader program, described Bootloader program includes start-up loading pattern and downloading mode, described start-up loading pattern is finished the autonomous operation of program, and described downloading mode is finished the debugging and the renewal work of program; Behind system power-on reset, the boot program that is solidificated in the dsp chip can load the Bootloader program, and do not have button then can enter the start-up loading pattern this moment in 5 seconds, otherwise enter downloading mode.
2. easy development method according to claim 1 is characterized in that, the generation of described user program includes following steps:
Steps A: the compiling link source program generates file destination on host;
Step B: use the hex crossover tool that the file destination of steps A is converted to boottable sheet format file;
Step C: the boottable sheet format file of step B is handled the generation image file.
3. easy development method according to claim 2 is characterized in that, described start-up loading pattern loads user program according to the form of boottable.
4. easy development method according to claim 3 is characterized in that, whenever reads 16KB in the process of described loading user program and will carry out page turning, and described page turning is to control Flash high address line by cpld.
5. easy development method according to claim 1 is characterized in that, described downloading mode includes:
Load module is used to receive order and parameter from the terminal input;
Check module, be used for the legitimacy of sense command and parameter;
Processing module is used for according to the corresponding handling procedure of different command execution;
Output module is used for to terminal output for information about.
6. easy development method according to claim 5, it is characterized in that, described load module, according to the universal asynchronous serial host-host protocol, will store among the buffer that applies for the internal memory from the order and the parameter of terminal input, baud rate adopts 11520, a start bit, 8 data bit, no parity position, a position of rest.
7. easy development method according to claim 6, it is characterized in that, described inspection module is by reading order and the parameter among the buffer, and distinguish according to the space, according to the character string constant that pre-defines order is mated then,, show error message if do not match then directly enter described output module, if the match is successful then checks parameter according to specific instructions, under the errorless situation of parameter, enter described processing module.
8. easy development method according to claim 7 is characterized in that, described processing module is finished processing according to the corresponding function of command calls, the corresponding subfunction of each described order, and described function parameters is the parameter of the corresponding command.
9. easy development method according to claim 8 is characterized in that described output module prints to relevant information on the terminal according to the state of prior module.
10. according to any described easy development method of claim 6 to 8, it is characterized in that, described order and parameter are: command arg1 arg2 arg3 ... the wherein corresponding order of command representative, argn is an optional parameter, relevant with specific instructions, separate with the space between command and the arg, also separate between the described parameter with the space.
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Cited By (5)
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| CN102521005A (en) * | 2011-12-31 | 2012-06-27 | 南京航空航天大学 | Simple and convenient method for software loading and debugging of embedded system software |
| CN103309711A (en) * | 2013-06-18 | 2013-09-18 | 天津七一二通信广播有限公司 | Bootstrap loader circuit based on USB interface |
| CN105183523A (en) * | 2015-09-29 | 2015-12-23 | 国网智能电网研究院 | Method for remote upgrade of digital signal processor (DSP) program |
| CN105955799A (en) * | 2016-05-05 | 2016-09-21 | 青岛海信电器股份有限公司 | Software upgrading system and method, and emulator |
| CN107832223A (en) * | 2017-11-18 | 2018-03-23 | 上海华虹集成电路有限责任公司 | A kind of effective ways for debugging utility |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102521005A (en) * | 2011-12-31 | 2012-06-27 | 南京航空航天大学 | Simple and convenient method for software loading and debugging of embedded system software |
| CN103309711A (en) * | 2013-06-18 | 2013-09-18 | 天津七一二通信广播有限公司 | Bootstrap loader circuit based on USB interface |
| CN105183523A (en) * | 2015-09-29 | 2015-12-23 | 国网智能电网研究院 | Method for remote upgrade of digital signal processor (DSP) program |
| CN105955799A (en) * | 2016-05-05 | 2016-09-21 | 青岛海信电器股份有限公司 | Software upgrading system and method, and emulator |
| CN107832223A (en) * | 2017-11-18 | 2018-03-23 | 上海华虹集成电路有限责任公司 | A kind of effective ways for debugging utility |
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Application publication date: 20110504 |