CN110262349A - A kind of the remote online programmed method and system of C8051F series monolithic - Google Patents
A kind of the remote online programmed method and system of C8051F series monolithic Download PDFInfo
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- CN110262349A CN110262349A CN201910576786.4A CN201910576786A CN110262349A CN 110262349 A CN110262349 A CN 110262349A CN 201910576786 A CN201910576786 A CN 201910576786A CN 110262349 A CN110262349 A CN 110262349A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
This application provides a kind of remote online programmed method of C8051F series monolithic and devices, belong to single-chip data processing technology field, the single-chip microcontroller working procedure is updated by host computer, the described method includes: step S1, acquisition need the working procedure of burning, it sets the corresponding machine code initial address of the working procedure to be prefabricated with the initial address of the working procedure section of the single-chip microcontroller of bootstrap, the working procedure step S2, is converted into the executable machine code file of single-chip microcontroller；Step S3, the machine code file is sent to the single-chip microcontroller.The application makes single-chip microcontroller realize remote online programing function by R485 bus under the guidance of bootstrap by designing a bootstrap in SCM program area.The working efficiency of upgrading extension set software greatly improved.
Description
Technical field
The application belongs to single-chip data processing technology field, in particular to a kind of C8051F series monolithic it is long-range
Line programmed method and system.
Background technique
C8051F series monolithic (example C8051F020) is a powerful hybrid analog-digital simulation digital circuit chip,
The fields such as Industry Control, aviation electronics are widely applied.The realization of many control functions of C8051F single-chip microcontroller is by soft
Part, in many applications, realizes that the upgrading improvement of function is essential, is also frequent by software upgrading come what is realized
Sex work.
Currently, the update of C8051F program uses JTAG burning mode, i.e., chip is passed through certainly using matched burn recording software
The JTAG mouth of band carries out the update of program.
The major defect of existing JTAG burning mode:
Since JTAG message long distance transmission is vulnerable to interference, so general only design installation near C8051F single-chip microcontroller
JTAG mouthfuls of connectors provide the debugging programming function of software.Therefore after having surmounted the debugging single board stage, in module and extension set
Under (component-level) even system level state, the more new program of C8051F scm software just becomes more and more difficult.It needs a large amount of
Disassembly installment work, consume many manpower and material resources and time, increase the difficulty and workload of software upgrading.
Summary of the invention
In order to solve the above-mentioned technical problem at least one, this application provides a kind of C8051F series monolithic it is long-range
Line programmed method and system, this method make single-chip microcontroller in bootstrap by designing a bootstrap in SCM program area
Guidance under pass through R485 bus realize remote online programing function.
The application is updated in a first aspect, a kind of remote online programmed method of C8051F series monolithic by host computer
The single-chip microcontroller working procedure, which comprises
Step S1, the working procedure for needing burning is obtained, the corresponding machine code initial address of the working procedure is arranged
For be prefabricated with bootstrap single-chip microcontroller working procedure section initial address, the bootstrap of the single-chip microcontroller is configured to
Enough communicate with host computer is burnt to single-chip microcontroller by its corresponding machine code initial address with the working procedure for sending host computer
In corresponding address, the working procedure section of the single-chip microcontroller is arranged in after the bootstrap routine segment for storing the bootstrap；
Step S2, the working procedure is converted into the executable machine code file of single-chip microcontroller；
Step S3, the machine code file is sent to the single-chip microcontroller.
Preferably, data address shared by the working procedure section accounts for 90% or more of entire single-chip data address.
Preferably, the step S3 further comprises:
Step S31, buffer area is sent by the machine code file；
Step S32, the data of buffer area are sent to single-chip microcontroller by predetermined packet agreement.
Preferably, the predetermined packet agreement of the step S32 includes:
The data of buffer area are divided into multiframe, and are successively sent to the single-chip microcontroller.
Preferably, after the step S3, further includes:
Step S4, the data that single-chip microcontroller is read are obtained；
Step S5, the data that will acquire are compared with initial data, and whether the program for verifying single-chip microcontroller burning is correct.
Preferably, include: before the step 1
Interruption entry address in step 0, the bootstrap area is offset to work by machine code initial address correspondence
Make program segment.
A kind of the application second aspect, remote online programing system of C8051F series monolithic, specifically includes that
Working procedure obtains module, for obtaining the working procedure for needing burning, and by the corresponding machine of the working procedure
Device code initial address is set as being prefabricated with the initial address of the working procedure section of the single-chip microcontroller of bootstrap, and the single-chip microcontroller draws
The working procedure that lead sequence is configured to communicate to send host computer with host computer is originated by its corresponding machine code
Address is burnt in the corresponding address of single-chip microcontroller, and the working procedure section of the single-chip microcontroller, which is arranged in, stores drawing for the bootstrap
After leading program segment；
Machine code file acquisition module, for the working procedure to be converted to the executable machine code file of single-chip microcontroller；
Burning module, for the machine code file to be sent to the single-chip microcontroller.
Preferably, the burning module includes:
Cache unit, for caching the machine code file；
Ipc monitor unit, for the data of buffer area to be sent to single-chip microcontroller by predetermined packet agreement.
Preferably, further includes:
Data check module, for obtaining the data of single-chip microcontroller reading, and the data that will acquire and initial data into
Whether row compares, correct with the program for verifying single-chip microcontroller burning.
Preferably, further includes:
Interruption processing module, for the machine code initial address to be pressed in the interruption entry address in the bootstrap area
Correspondence is offset to working procedure section.
The long-range of C8051F series monolithic can be realized with very low hardware cost and seldom bulk in the present invention
Online programming breaches original module level even limitation of printed plate burning program.Eliminate original upgrade procedure when institute
The a large amount of dismounting work and module that need or the power supply tooling of printed board.A large amount of time, manpower and fund can be saved.?
When the program of typical products in mass production updates, unifies state, it is better reflected its superiority.Present invention can apply to C8051F single-chip microcontrollers
Control system can be widely applied in fields such as Industry Control, embedded Control, Aeronautics and Astronautics controls.
Detailed description of the invention
Fig. 1 is the flow chart of the remote online programmed method of the application C8051F series monolithic.
Fig. 2 is the host computer work flow diagram of the remote online programmed method of the application C8051F series monolithic.
Fig. 3 is the single-chip microcontroller work flow diagram of the remote online programmed method of the application C8051F series monolithic.
Fig. 4 is the host computer and single-chip microcontroller connection relationship of the remote online programing system of the application C8051F series monolithic
Schematic diagram.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction with the application embodiment
In attached drawing, the technical solution in the application embodiment is further described in more detail.In the accompanying drawings, identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.Described embodiment is
A part of embodiment of the application, rather than whole embodiments.Embodiment below with reference to attached drawing description is to show
Example property, it is intended to for explaining the application, and should not be understood as the limitation to the application.Based on the embodiment in the application,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Apply for the range of protection.Presently filed embodiment is described in detail with reference to the accompanying drawing.
According to the application in a first aspect, a kind of remote online programmed method of C8051F series monolithic, is applied to upper
Machine, as shown in Figure 1, the method specifically includes that
Step S1, the working procedure for needing burning is obtained, the corresponding machine code initial address of the working procedure is arranged
For be prefabricated with bootstrap single-chip microcontroller working procedure section initial address, the bootstrap of the single-chip microcontroller is configured to
Enough communicate with host computer is burnt to single-chip microcontroller by its corresponding machine code initial address with the working procedure for sending host computer
In corresponding address, the working procedure section of the single-chip microcontroller is arranged in after the bootstrap routine segment for storing the bootstrap；
Step S2, the working procedure is converted into the executable machine code file of single-chip microcontroller；
Step S3, the machine code file is sent to the single-chip microcontroller.
It should be noted that single-chip microcontroller involved in the application step S1 is prefabricated with bootstrap, and from beginning to end not
Become, is not influenced by singlechip application programs update, for this purpose, the burning for the first time of bootstrap should meet following requirement:
1) it by taking C8051F020 single-chip microcontroller as an example, sets the program storage area (Flash in 64KB piece) of C8051F020 to
Two parts: bootstrap routine segment and working procedure section, in some optional embodiments, data address shared by the working procedure section
Account for 90% or more of entire single-chip data address.Such as 0x0000~0x1fff be bootstrap memory block, 0x2000~
0xA000 is working procedure memory block.Two memory block space sizes are adjustable, but must assure that two memory block address spaces
It is not overlapped, and bootstrap memory block is originated from 0x0000.Due to being from the program space after the reset on single-chip microcontroller
0x0000 starts to execute code, so bootstrap setting, in low address space, working procedure is arranged in high address space.This
Sample can be prevented when burning working procedure fails, and system cannot be introduced into bootstrap and lead to in-system programming after re-powering
Disabler.
2) since bootstrap content cannot be programmed erasable, online programming function will otherwise be lost.So drawing
It needs the address for treating burning to be limited in lead sequence, is limited in burning address in the address space of working procedure.
Although 3) be to separate on address with working procedure due to bootstrap, they share identical interruption entrance
Address and interrupt service subroutine.Therefore without using interrupting in bootstrap, serial ports uses inquiry mode instead, and will be in bootstrap
Each interrupt service subroutine jump to the initial address (after 0x2000) of working procedure interrupt service subroutine all with direct
Execute the interrupt service subroutine of working procedure.
4) in the case where in bootstrap without using interrupting, interruption can not also be write in bootstrap and services sub- journey
Sequence increases following procedure in the startup.a51 file changed into compilation tool KEIL uVision2:
The purpose of procedure above is directly to increase the program for jumping to working procedure and interrupting entrance in each interruption entry position,
Make working procedure can normal response external interrupt.Debug.hex file is generated after the completion of bootstrap compiling, then passes through JTAG
Mouth is burnt in single-chip microcontroller.
5) other functions, such as with the function of communicating with host computer, the simple instructions such as the read-write of host computer are responded, including
It obtains the data of host computer and corresponding address is written and the data of corresponding address are sent to by host computer according to host computer requirement.
As described above, the bootstrap of single-chip microcontroller still uses original JTAG mode burning, but only burning is primary, subsequent
Working procedure will be completed remotely to update by host computer.
In step S1, host computer (end PC) programming Control software can read the single-chip microcontroller that need to be updated from other equipment
Working procedure directly can also write corresponding working procedure at the end PC.Working procedure is normal function needed for realization system
Program.Since the address of working procedure is since 0x2000, interrupting service-routine address is also the institute since 0x2000
" Interrupt vectors in the C51 option of options need to be passed through in KEIL uVision2 when working procedure programs
At " is set as 0x2000, and " Code Range " is set as 0x2000 in BL51Locate option.It is raw after the completion of working procedure compiling
At Work.hex file.
In some optional embodiments, step S3 further comprises:
Step S31, buffer area is sent by the machine code file；
Step S32, the data of buffer area are sent to single-chip microcontroller by predetermined packet agreement.
It is understood that host computer is when carrying out long-range burning, it is literary in the HEX for the single-chip microcontroller working procedure that will need programming
Pointer after being converted to corresponding machine code file, is directed toward the initial address that working procedure is stored in memory, from the starting point by part
Data are read in location, and are grouped by predetermined packet agreement (communication protocol) to data, and each group of data is sent to monolithic later
Machine, single-chip microcontroller store data in working procedure initial position accordingly.
In some optional embodiments, the predetermined packet agreement of the step S32 includes:
The data of buffer area are divided into multiframe, and are successively sent to the single-chip microcontroller, such as every 64 byte conduct in Fig. 2
One frame.
In some optional embodiments, after the step S3, further includes:
Step S4, the data that single-chip microcontroller is read are obtained；
Step S5, the data that will acquire are compared with initial data, and whether the program for verifying single-chip microcontroller burning is correct.
Fig. 2 is respectively corresponding host computer and single-chip microcontroller workflow with Fig. 3, is briefly outlined below:
A. extension set (SCM system) powers on, and is introduced into bootstrap and sends handshake data (" #On_
LineProgram? "), program enters working procedure after not receiving programming instruction in 200ms, waits instruction；
B. main control end runs the end PC programming Control software, reads the single-chip microcontroller working procedure Work.hex for needing programming, and turn
It is changed to machine code file；Online line program journey is run, " being reset to programming mode instruction " RST_PROGRAM (0XA3) is sent, etc.
It resets and replys to SCM system；
B. software reset is arranged in the working procedure of SCM system, into bootstrap, then sends handshake data (" #
On_lineProgram? ")；
The end c.PC programming Control software responses handshake data；Programming process is initiated, sends programming data to SCM system；
D. the bootstrap of SCM system receives programming data and is written to working procedure memory block；
After the end e.PC programming Control software has sent programming data, initiate to read programming data process, by SCM system
The programming data for receiving write-in is read out；
F. the data of working procedure memory block are passed back to the end PC programming Control software by SCM system bootstrap；
After the end g.PC programming Control software receives working procedure data, it is compared with the programming data originally sent
To verification, if data check is incorrect, show that there may be error codes in communication process, need to re-start programming；If data
Verification is correct, then shows that burning data is correct, programs successfully.
The online programming of C8051F series monolithic can be realized by above step.
It should be noted that machine code " is read address to be arranged by step " receiving request program parameters " to step in Fig. 2
For the machine code initial address of working procedure " specifically:
Machine code initial address and the initial address of single-chip microcontroller working procedure are consistent, which is to tell single-chip microcontroller
Working procedure is stored since the address, pointer is directed toward the starting point that working procedure is stored in memory by ipc monitor program
Location reads data from the initial address, and sends the data to single-chip microcontroller, and single-chip microcontroller is stored in working procedure starting accordingly
Position.
According to the application second aspect, provide a kind of C8051F series monolithic corresponding with the above method it is long-range
Line programing system, specifically includes that
Working procedure obtains module, for obtaining the working procedure for needing burning, and by the corresponding machine of the working procedure
Device code initial address is set as being prefabricated with the initial address of the working procedure section of the single-chip microcontroller of bootstrap, and the single-chip microcontroller draws
The working procedure that lead sequence is configured to communicate to send host computer with host computer is originated by its corresponding machine code
Address is burnt in the corresponding address of single-chip microcontroller, and the working procedure section of the single-chip microcontroller, which is arranged in, stores drawing for the bootstrap
After leading program segment；
Machine code file acquisition module, for the working procedure to be converted to the executable machine code file of single-chip microcontroller；
Burning module, for the machine code file to be sent to the single-chip microcontroller.
Fig. 4 gives host computer and single-chip microcontroller connection relationship diagram, and system integrally includes a piece of C8051F series monolithic
Machine, a UART chip, a RS485 communication level conversion chip and other peripheral circuits.Practical solutions are as follows: one
Piece C8051F020 (single-chip microcontroller), a piece of 16C2550 (UART), a piece of MAX485 (RS485 electrical level transferring chip), and it is corresponding
The peripheral circuits such as power supply.The RS485 bus of single-chip microcontroller need to be connected on extension set or the external socket of system, in order to PC's
The port RS485 is attached and the electricity of the RS485 serial ports of a RS485 serial ports and the end PC for connecting SCM system
Cable or circuit device；One RS232/485 serial converter is connected to the RS232 serial ports of PC, for by the RS232 level of PC
Be converted to RS485 level.
When connection, the RS485 serial ports of the RS485 serial ports of SCM system and PC is attached by cable；The end PC
Programming Control software reads the single-chip microcontroller working procedure (HEX file) that need to be updated；Run the programming Control software at the end PC simultaneously
Communication handshake is carried out by the guidance software of RS485 bus and single-chip microcontroller；The good communication by definition of the programming Control software at the end PC
Programming data is written after giving single-chip microcontroller bootstrap, bootstrap to receive programming data SCM program batchwise transfer for agreement
SCM program memory completes the update upgrading of single-chip microcontroller working procedure；The programming Control software at the end PC, which sends instruction, makes list
By the program that single-chip microcontroller is written, good communication protocol batchwise transfer gives programming Control software, programming control to piece machine bootstrap by definition
Data and previously written programming data are carried out data check after receiving by software processed, if receiving data and the complete phase of programming data
Together, then show that write-in programming data is correct.
After the programming Control software programming at the end PC, transmission resets to work order, jumps bootstrap and executes list
Piece machine working procedure.
In some optional embodiments, the burning module includes:
Cache unit, for caching the machine code file；
Ipc monitor unit, for the data of buffer area to be sent to single-chip microcontroller by predetermined packet agreement.
In some optional embodiments, further includes:
Data check module, for obtaining the data of single-chip microcontroller reading, and the data that will acquire and initial data into
Whether row compares, correct with the program for verifying single-chip microcontroller burning.
In some optional embodiments, further includes:
Interruption processing module, for the machine code initial address to be pressed in the interruption entry address in the bootstrap area
Correspondence is offset to working procedure section.
The application leads to single-chip microcontroller under the guidance of bootstrap by designing a bootstrap in SCM program area
It crosses R485 bus and realizes remote online programing function.In this way, can realize that the program of C8051xxx chip updates outside extension set.By
It is remote (theoretical value is up to 1KM) in RS485 bus communication speed height, strong antijamming capability, communication distance, therefore can be logical in master control room
It crosses after communication cable is connect with extension set and realizes that the program of single-chip microcontroller updates, without additional disassembling operations, upgrading can be greatly improved
The working efficiency of extension set software.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of remote online programmed method of C8051F series monolithic, which is characterized in that update the list by host computer
Piece machine working procedure, which comprises
Step S1, the working procedure for needing burning is obtained, sets pre- for the corresponding machine code initial address of the working procedure
Be formed with the initial address of the working procedure section of the single-chip microcontroller of bootstrap, the bootstrap of the single-chip microcontroller be configured to
Host computer communication is burnt to single-chip microcontroller by its corresponding machine code initial address with the working procedure for sending host computer and corresponds to
Address in, the working procedure section of the single-chip microcontroller is arranged in after the bootstrap routine segment for storing the bootstrap；
Step S2, the working procedure is converted into the executable machine code file of single-chip microcontroller；
Step S3, the machine code file is sent to the single-chip microcontroller.
2. the remote online programmed method of C8051F series monolithic as described in claim 1, which is characterized in that the work
Data address shared by program segment accounts for 90% or more of entire single-chip data address.
3. the remote online programmed method of C8051F series monolithic as described in claim 1, which is characterized in that the step
S3 further comprises:
Step S31, buffer area is sent by the machine code file；
Step S32, the data of buffer area are sent to single-chip microcontroller by predetermined packet agreement.
4. the remote online programmed method of C8051F series monolithic as claimed in claim 3, which is characterized in that the step
The predetermined packet agreement of S32 includes:
The data of buffer area are divided into multiframe, and are successively sent to the single-chip microcontroller.
5. the remote online programmed method of C8051F series monolithic as described in claim 1, which is characterized in that the step
After S3, further includes:
Step S4, the data that single-chip microcontroller is read are obtained；
Step S5, the data that will acquire are compared with initial data, and whether the program for verifying single-chip microcontroller burning is correct.
6. the remote online programmed method of C8051F series monolithic as described in claim 1, which is characterized in that the step
Include: before 1
Interruption entry address in step 0, the bootstrap area is offset to work journey by machine code initial address correspondence
Sequence section.
7. a kind of remote online programing system of C8051F series monolithic characterized by comprising
Working procedure obtains module, for obtaining the working procedure for needing burning, and by the corresponding machine code of the working procedure
Initial address is set as being prefabricated with the initial address of the working procedure section of the single-chip microcontroller of bootstrap, the guidance journey of the single-chip microcontroller
Sequence is configured to communicate the working procedure to send host computer with host computer by its corresponding machine code initial address
It is burnt in the corresponding address of single-chip microcontroller, the guidance journey for storing the bootstrap is arranged in the working procedure section of the single-chip microcontroller
After sequence section；
Machine code file acquisition module, for the working procedure to be converted to the executable machine code file of single-chip microcontroller；
Burning module, for the machine code file to be sent to the single-chip microcontroller.
8. the remote online programing system of C8051F series monolithic as claimed in claim 7, which is characterized in that the burning
Module includes:
Cache unit, for caching the machine code file；
Ipc monitor unit, for the data of buffer area to be sent to single-chip microcontroller by predetermined packet agreement.
9. the remote online programing system of C8051F series monolithic as claimed in claim 7, which is characterized in that further include:
Data check module, for obtaining the data of single-chip microcontroller reading, and the data that will acquire are compared with initial data
Compared with whether correct with the program for verifying single-chip microcontroller burning.
10. the remote online programing system of C8051F series monolithic as claimed in claim 7, which is characterized in that further include:
Interruption processing module, for the interruption entry address in the bootstrap area is corresponding by the machine code initial address
It is offset to working procedure section.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111008010A (en) * | 2019-11-14 | 2020-04-14 | 天津航空机电有限公司 | RS485 bus-based singlechip application software online programming method and device |
| CN113625630A (en) * | 2021-08-09 | 2021-11-09 | 大易智慧信息科技(苏州)有限公司 | Device for remotely controlling operation of single chip microcomputer by upper computer |
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