CN106339238A - Serial port multi-mode automatic multiplexing chip quick programming system - Google Patents
Serial port multi-mode automatic multiplexing chip quick programming system Download PDFInfo
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- CN106339238A CN106339238A CN201610725839.0A CN201610725839A CN106339238A CN 106339238 A CN106339238 A CN 106339238A CN 201610725839 A CN201610725839 A CN 201610725839A CN 106339238 A CN106339238 A CN 106339238A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/66—Updates of program code stored in read-only memory [ROM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
- G06F13/1684—Details of memory controller using multiple buses
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Abstract
The invention provides a serial port multi-mode automatic multiplexing chip quick programming system which comprises an STM32 chip, an ESP8266 chip, a data interface, a first programming module and a serial port file module, wherein the STM32 chip is in communication connection with the ESP8266 chip; both the output ends of the first programming module and the serial port file module can be in inserting connection with the input end of the data interface; the STM32 chip defines a first detection pin and a third detection pin; the ESP8266 chip defines a second detection pin; when the first programming module is in inserting connection with the data interface, an eighth pin of the first programming module and an eighth pin of the data interface are connected with each other, and then connected with the second detection pin and the third detection pin respectively; when the serial port file module is in inserting connection with the data interface, a first pin of the serial port file module, a first pin of the data interface and the first detection pin are connected sequentially; the STM32 chip is provided with a serial port operation module and the ESP8266 chip is provided with a state setting module. The serial port multi-mode automatic multiplexing chip quick programming system can automatically switch various working modes of the ESP8266 chip without toggling a switch.
Description
Technical field
The present invention relates to chip multiplex technique field is and in particular to a kind of chip of serial ports multi-mode self reusing quickly burns
Write system.
Background technology
Based on the wifi expansion board of esp8266 12e, referred to as esp8266 chip.Esp8266 chip has following three kinds
Pattern:
(1) serial interface communication mode and stm32 chip between: the serial ports between esp8266 chip and stm32 chip under this pattern
Keep connecting, the gpio0 pin configuration of esp8266 chip is high level.
(2) rom programming pattern: under this pattern, the serial ports between esp8266 chip and stm32 chip is connected disconnection,
The serial ports of esp8266 chip connects programming module, by the Serial Port Transmission data of esp8266 chip, now esp8266 chip
Gpio0 pin configuration is low level.
(3) serial ports paper work pattern: under this pattern, the serial ports between esp8266 chip and stm32 chip is connected disconnection,
The serial ports of esp8266 chip connects serial ports file module, changes the inside of esp8266 chip by the serial ports of esp8266 chip
File content, now the gpio0 pin configuration of esp8266 chip is high level.
From the above, when being operated under second pattern or the third pattern, need using esp8266 chip
Serial ports is connected it is therefore necessary to first disconnect the serial ports between esp8266 chip and stm32 chip under the first pattern, then passes through
The serial ports of esp8266 chip carries out rom programming or serial ports file operation；After rom programming or serial ports file operation terminate then extensive
Multiple serial communication between esp8266 chip and stm32 chip.In conventional manner, aforesaid disconnection and the general employing of recovery
The mode of manual toggle switch, which needs individually designed one and switchs for disconnecting and recovering stm32 chip and esp8266
Serial ports between chip connects, and working method is loaded down with trivial details, using extremely inconvenience.
Content of the invention
Present invention aims to the deficiencies in the prior art, provide a kind of chip of serial ports multi-mode self reusing fast
Fast programming system, can solve complex operation, awkward problem during esp8266 chip operation pattern switching well.
For reaching above-mentioned requirements, the present invention adopts the technical scheme that: provides a kind of core of serial ports multi-mode self reusing
Piece quick programming system, including stm32 chip, esp8266 chip, data-interface, realize esp8266 chip programming first burning
Writing module and the serial ports file module realizing esp8266 chip serial ports file operation, described stm32 chip and esp8266 chip
Communication connection, described data-interface is connected with stm32 chip and esp8266 chip respectively, described first programming module and serial ports
The outfan of file module all can be with the input grafting of data-interface；Described stm32 chip definition have the first detection pin with
3rd detection pin, esp8266 chip definition has the second detection pin, and the first detection pin, the second detection pin and the 3rd
Detection pin is all linked on 3.3v level；The grounding pin of the first programming module connects the 8th pin of the first programming module,
When the first programming module and data-interface grafting, after the 8th pin of the first programming module is connected with the 8th pin of data-interface
Connect the second detection pin and the 3rd detection pin, the grounding pin of the first programming module and the grounding lead of data-interface more respectively
Foot is grounded after connecting；The grounding pin of serial ports file module connects the first pin of serial ports file module, serial ports file module with
During data-interface grafting, the first pin of serial ports file module, the first pin of data-interface and the first detection pin connect successively
Connect, the grounding pin of serial ports file module is grounded after being connected with the grounding pin of data-interface；It is provided with stm32 chip by inspection
Surveying the first detection pin and the 3rd detects the level of pin thus breaking to serial ports between stm32 chip and esp8266 chip
Open or attended operation operation of serial-port module, be provided with esp8266 chip by detect second detection pin thus arranging
The state setting module of esp8266 chip operation state.
The chip quick programming system of this serial ports multi-mode self reusing has the advantage that as follows:
(1) setting operation of serial-port module and state setting module, operation of serial-port module real-time detection first detects pin and the 3rd
The level of detection pin, if the first detection pin is detected is low level, the 3rd detection pin is high level, then serial ports is described
File module inserts, and stm32 chip disconnects oneself serial ports and esp8266 chip between and connects, and now can carry out serial ports literary composition
Part operates；If stm32 chip detection is high level to the first detection pin, the 3rd detection pin is low level, then explanation the
Single firing writing module inserts, and stm32 chip disconnects oneself serial ports and esp8266 chip between and connects, and now can carry out
The rom programming of esp8266 chip；If stm32 chip detection is high level to the first detection pin, the 3rd detection pin is height
Level, then be currently the serial communication mode of operation between stm32 and esp8266, and stm32 chip connects oneself and esp8266
Serial ports between chip, now can carry out the serial communication between stm32 and esp8266；Achieve stm32 chip and
Automatic disconnection/recovery that serial ports between esp8266 chip connects, saves switching device, reduce product design difficulty with
Product cost；
(2) adopt a data-interface, can be with the first programming module of data-interface grafting, the second programming module and serial ports literary composition
Part module, you can be automatically obtained stm32 chip and the communication of esp8266 chip, the rom programming of esp8266 chip and esp8266
The serial ports file operation of chip, stm32 four kinds of mode of operations of chip rom programming.
Brief description
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, at this
Represent same or analogous part, the schematic description and description of the application using identical reference number in a little accompanying drawings
For explaining the application, do not constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the module diagram of the application；
Fig. 2 is the connection schematic diagram of esp8266 chip rom programming pattern；
Fig. 3 is the connection schematic diagram of esp8266 chip serial ports file mode；
Fig. 4 is the connection schematic diagram of stm32 chip rom programming pattern.
Specific embodiment
Purpose, technical scheme and advantage for making the application are clearer, below in conjunction with drawings and the specific embodiments, to this
Application is described in further detail.
In the following description, quoting of " embodiment ", " embodiment ", " example ", " example " etc. is shown
So the embodiment of description or example can include special characteristic, structure, characteristic, property, element or limit, but not each is real
Apply example or example all necessarily includes special characteristic, structure, characteristic, property, element or limit.In addition, reuse phrase " according to
One embodiment of the application " is although it is possible to refer to identical embodiment, but is not necessarily referring to identical embodiment.
For the sake of simplicity, eliminate in below describing well known to a person skilled in the art some technical characteristics.
According to an embodiment of the application, provide a kind of chip quick programming system of serial ports multi-mode self reusing,
As Figure 1-Figure 4, including stm32 chip, esp8266 chip, data-interface, realize esp8266 chip programming first burning
Writing module and the serial ports file module realizing esp8266 chip serial ports file operation, described stm32 chip and esp8266 chip
Communication connection, described data-interface is connected with stm32 chip and esp8266 chip respectively, described first programming module and serial ports
The outfan of file module all can be with the input grafting of data-interface；Described stm32 chip definition have the first detection pin with
3rd detection pin, esp8266 chip definition has the second detection pin, and the first detection pin, the second detection pin and the 3rd
Detection pin is all linked on 3.3v level；The grounding pin of the first programming module connects the 8th pin of the first programming module,
When the first programming module and data-interface grafting, after the 8th pin of the first programming module is connected with the 8th pin of data-interface
Connect the second detection pin and the 3rd detection pin, the grounding pin of the first programming module and the grounding lead of data-interface more respectively
Foot is grounded after connecting；The grounding pin of serial ports file module connects the first pin of serial ports file module, serial ports file module with
During data-interface grafting, the first pin of serial ports file module, the first pin of data-interface and the first detection pin connect successively
Connect, the grounding pin of serial ports file module is grounded after being connected with the grounding pin of data-interface；It is provided with stm32 chip by inspection
Surveying the first detection pin and the 3rd detects the level of pin thus breaking to serial ports between stm32 chip and esp8266 chip
Open or attended operation operation of serial-port module, be provided with esp8266 chip by detect second detection pin thus arranging
The state setting module of esp8266 chip operation state.First pin of above-mentioned data-interface and the 8th pin simply indicate that this
Two pins are different pin, are not the sequence representing actual pin；The first pin and the 8th in first programming module draws
Foot is also so.
Above-mentioned data-interface can adopt rj45 interface using interfaces more than 7 cores or 7 cores in the present embodiment.
Therefore, in the present embodiment, the connected mode of esp8266 chip, stm32 chip and rj45 interface is: the transmission of esp8266 chip
Pin uotxd connects the reception pin usart-rx of the stm32 chip and reception pin wifi-r of rj45 interface respectively,
The reception pin uorxd of esp8266 chip connects the transmission pin usart-tx of stm32 chip and the transmission of rj45 interface respectively
The grounding pin of the grounding pin of pin wifi-t, esp8266 chip, stm32 chip ground pin and rj45 connects and is grounded；
First pin mode-set of rj45 interface connects the first detection pin mode-check-gpio of stm32 chip, rj45 interface
Serial data pin swdio connect stm32 chip serial data pin pa13, the serial clock pin of rj45 interface
Swclk connects the serial clock pin pa14 of stm32 chip, and the 8th pin esp8266-gpio0-set of rj45 interface divides
Pin wifi-io/0 Lian Jie not detected by the second detection pin gpio0 and the 3rd, three detection pins are all connected with 3.3v high level.
First programming module adopts usb-ttl, the 8th pin that its internal grounding pin gnd connection is controlled oneself；Need reality
During the rom programming pattern of existing esp8266 chip, the first programming module is inserted in rj45 interface, as shown in Fig. 2 its connection side
Formula is: the grounding pin gnd of usb-ttl connects the grounding pin gnd of rj45 interface, and the 8th pin of usb-ttl connects rj45
8th pin esp8266-gpio0-set of interface, sends the reception pin wifi-r that pin tx connects rj45 interface, and reception is drawn
Foot rx connects the transmission pin wifi-t of rj45 interface.Its operation principle is: the grounding pin gnd of usb-ttl connects rj45 and connects
Mouthful grounding pin gnd be simultaneously grounded, by force the 8th pin esp8266-gpio0-set of rj45 interface is drawn as low level, from
And the second detection pin gpio0 and the 3rd detection pin wifi-io/0 is drawn as low level, operation of serial-port module constantly detection from
Body first detects the level of pin mode-check-gpio and the 3rd detection pin wifi-io/0, once the first detection is detected
Pin mode-check-gpio is that high level and the 3rd detects that pin wifi-io/0 is low level, then know the first programming module
Insertion, the serial ports between stm32 chip and esp8266 chip is disconnected by operation of serial-port module automatically.Meanwhile, state setting module
The second detection pin gpio0 is detected is low level, just the working condition of esp8266 chip is set to chip rom programming shape
State, thus can enter the rom programming pattern of esp8266 chip.
Serial ports file module is also adopted by usb-ttl, and its internal grounding pin gnd connects itself the first pin；Need reality
During the serial ports file mode of existing esp8266 chip, serial ports file module is inserted in rj45 interface, as shown in figure 3, its connection side
Formula is: the grounding pin gnd of usb-ttl connects the grounding pin gnd of rj45 interface, and first pin of usb-ttl connects rj45
First pin mode-set of interface, sends the reception pin wifi-r that pin tx connects rj45 interface, receives pin rx and connects
The transmission pin wifi-t of rj45 interface.Its operation principle is: the grounding pin gnd of usb-ttl connects the ground connection of rj45 interface
Pin gnd is simultaneously grounded, and by force the first pin mode-set of rj45 interface is drawn as low level；Now, operation of serial-port module inspection
Measuring the first detection pin mode-check-gpio is that low level and the 3rd detects that pin wifi-io/0 is high level, then know
Serial ports file module inserts, and the serial ports between stm32 chip and esp8266 chip is disconnected by operation of serial-port module automatically；Simultaneously
It is high level that state setting module detects the second detection pin gpio0, and the working condition of esp8266 chip is set to serial ports
Paper work state, thus can enter the serial ports paper work pattern of esp8266 chip.
This system also includes the second programming module for realizing stm32 chip programming, and the second programming module adopts st-
Link, the second programming module is inserted the programming that can be directly realized by stm32 chip in rj45 interface, as shown in figure 4, its connection
Mode is: the grounding pin gnd of st-link connects the grounding pin gnd of rj45 interface, the serial data pin of st-link
Swdio connects the serial data pin swdio of rj45 interface, and the serial clock pin swclk of st-link connects rj45 interface
Serial clock pin swclk.
Within the system, operation of serial-port module once detects the first detection pin mode-check-gpio and the 3rd inspection
Survey pin wifi-io/0 pin and be high level, then know and any module is not inserted on rj45, operation of serial-port module is set up automatically
Serial ports between stm32 chip and esp8266 chip connects；State setting module detects the second detection pin gpio0 simultaneously
For high level, the working condition of esp8266 chip is set to serial communication working condition, thus can enter stm32 core
Piece and the serial communication mode of operation of esp8266 chip.
The system is without toggle switch it is possible to realize in the communication of stm32 chip and esp8266 chip, esp8266 core
The rom programming of piece, the serial ports file operation of esp8266 chip, between stm32 four kinds of mode of operations of chip rom programming from
Dynamic switching, easy to use, also save switching device, reduce product design difficulty and product cost.
The core of the system is including a chip, and it needs to use serial ports with the communication pattern of another chip, its
Rom programming pattern or serial ports file mode are also required to use serial ports, need in pattern switching to disconnect or connect serial ports, and this is
Have in system for detecting level and the program module according to the automatic disconnection of the level detecting or connection serial ports.
Embodiment described above only represents the several embodiments of the present invention, and its description is more concrete and detailed, but not
It is understood that as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from
On the premise of present inventive concept, some deformation can also be made and improve, these broadly fall into the scope of the present invention.Therefore this
Bright protection domain should be defined by described claim.
Claims (5)
1. a kind of chip quick programming system of serial ports multi-mode self reusing it is characterised in that: include stm32 chip,
Esp8266 chip, data-interface, realize esp8266 chip programming the first programming module and realize esp8266 chip serial ports literary composition
The serial ports file module of part operation, described stm32 chip and esp8266 chip communication connect, described data-interface respectively with
Stm32 chip and esp8266 chip connect, and the outfan of described first programming module and serial ports file module all can be connect with data
The input grafting of mouth；Described stm32 chip definition has the first detection pin and the 3rd detection pin, esp8266 chip definition
There is the second detection pin, and the first detection pin, the second detection pin and the 3rd detection pin are all linked on 3.3v level；The
The grounding pin of single firing writing module connects the 8th pin of the first programming module, when the first programming module and data-interface grafting,
8th pin of the first programming module connects the second detection pin and the 3rd after being connected with the 8th pin of data-interface more respectively
Detection pin, the grounding pin of the first programming module is grounded after being connected with the grounding pin of data-interface；Serial ports file module
Grounding pin connects the first pin of serial ports file module, when serial ports file module and data-interface grafting, serial ports file module
The first pin, the first pin of data-interface and first detection pin be sequentially connected, the grounding pin of serial ports file module with
The grounding pin of data-interface is grounded after connecting；It is provided with stm32 chip and drawn by detecting the first detection pin and the 3rd detection
The level of foot thus serial ports between stm32 chip and esp8266 chip is turned off or attended operation operation of serial-port module,
It is provided with esp8266 chip by detecting the second detection pin thus the state arranging esp8266 chip operation state arranges mould
Block.
2. serial ports multi-mode self reusing according to claim 1 chip quick programming system it is characterised in that: also wrap
Include the second programming module realizing stm32 chip programming, described second programming module and data-interface grafting.
3. serial ports multi-mode self reusing according to claim 1 chip quick programming system it is characterised in that: described
First programming module adopts usb-ttl.
4. serial ports multi-mode self reusing according to claim 1 chip quick programming system it is characterised in that: described
Second programming module adopts st-link.
5. serial ports multi-mode self reusing according to claim 1 chip quick programming system it is characterised in that: described
Serial ports file module adopts usb-ttl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725839.0A CN106339238B (en) | 2016-08-26 | 2016-08-26 | Serial port multi-mode automatic multiplexing chip fast programming system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725839.0A CN106339238B (en) | 2016-08-26 | 2016-08-26 | Serial port multi-mode automatic multiplexing chip fast programming system |
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| CN106339238A true CN106339238A (en) | 2017-01-18 |
| CN106339238B CN106339238B (en) | 2020-03-24 |
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Cited By (2)
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| CN108196855A (en) * | 2018-03-15 | 2018-06-22 | 安徽农业大学 | A kind of device of internet terminal node |
| CN111158710A (en) * | 2019-12-30 | 2020-05-15 | 杭州迪普科技股份有限公司 | Program programming method and device and network equipment |
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| CN103336755A (en) * | 2013-06-08 | 2013-10-02 | 中国人民解放军92859部队 | Program-controlled multimode serial port distributor |
| CN103439901A (en) * | 2013-08-08 | 2013-12-11 | 陕西科技大学 | Program programming circuit universal to single chip microcomputer and embedded type microprocessor |
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| CN108196855A (en) * | 2018-03-15 | 2018-06-22 | 安徽农业大学 | A kind of device of internet terminal node |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106339238B (en) | 2020-03-24 |
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