CN205721745U - Embedded with bluetooth firmware upgrade circuit, device and digital handset - Google Patents
Embedded with bluetooth firmware upgrade circuit, device and digital handset Download PDFInfo
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- CN205721745U CN205721745U CN201620310436.5U CN201620310436U CN205721745U CN 205721745 U CN205721745 U CN 205721745U CN 201620310436 U CN201620310436 U CN 201620310436U CN 205721745 U CN205721745 U CN 205721745U
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- bluetooth
- analog switch
- embedded
- aui
- firmware upgrade
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Abstract
The utility model relates to wireless communication field, particularly relates to embedded with bluetooth firmware upgrade circuit, device and digital handset, and this circuit includes: high-speed analog switch；Primary processor；Bluetooth module；AUI；Chip select logic module.This device includes above-mentioned embedded with bluetooth firmware upgrade circuit and bluetooth upgrading annex connecting line.This digital handset includes above-mentioned embedded with bluetooth firmware upgrade circuit.Above-mentioned embedded with bluetooth firmware upgrade circuit, device and digital handset, by the Intelligent Recognition to AUI for the chip select logic module, control high-speed analog switch switches over, individually bluetooth module is accessed PC as a USB device, it is done directly the quick upgrading of bluetooth module firmware, this process does not needs primary processor and participates in, and completes the outside upgrading of the driver of built Bluetooth module in the case of reducing and take main frame host processor resources, simple and reliable.
Description
Technical field
The utility model relates to wireless communication field, particularly relates to embedded with bluetooth firmware upgrade circuit, device
And digital handset.
Background technology
The embedded software of Wireless Telecom Equipment, including driver (firmware) and application program, typically will
Ask in the case of being not switched on device housings, be capable of outside quick upgrading, be used for more New function or repair leakage
Hole.
The typically common method of industry is that the external accessory interface by intercom (being commonly called as " hand platform ") (writes frequency
Interface) on USB or UART communication interface, equipment access PC main frame complete software upgrading, or
Write the configuration etc. of frequency and various function choosing-item.
The a lot of type of digital handset of a new generation starts to be equipped with embedded with bluetooth function, supports bluetooth accessory voice
Data communication function, built Bluetooth module has independent processor and program storage, at scheduling and planning and product
Product are upgraded, and each stage such as on-site maintenance, are many times required for the driving journey individually to bluetooth module
Sequence firmware (Firmware) is upgraded.
Generally conventional way is as it is shown in figure 1, connect PC by USB or the UART port of AUI
Main frame, sets up the communication of the primary processor of PC and hand platform host circuit, first upgrade file bag is read internal memory,
Then again by primary processor by it with other communication interfaces such as UART or SPI of bluetooth module, huge
Upgrade file bag downloads to the program storage of bluetooth module.
But, the program that completes replace whole process will primary processor and Large Copacity internal memory participation process, increase
The overhead burden of primary processor, adds a large amount of program codes of a lot of interface communication, adds complete machine soft
The stability factor of part.
Utility model content
Based on this, it is necessary to built-in for how to complete in the case that minimizing takies main frame host processor resources
The problem of the outside upgrading of the driver of bluetooth module, provides a kind of embedded with bluetooth firmware upgrade circuit, dress
Put and digital handset.
A kind of embedded with bluetooth firmware upgrade circuit, comprising: high-speed analog switch；Primary processor, described main place
Reason device is connected with described high-speed analog switch；Bluetooth module, described bluetooth module respectively with described High Speed Analog
Switch and described primary processor connect；AUI, described AUI is connected with described high-speed analog switch；
Chip select logic module, described chip select logic module connects with described high-speed analog switch and described AUI respectively
Connect.
Wherein in an embodiment, described high-speed analog switch includes: control port, public port, often
Closed end mouth and normally opened port；Described primary processor is connected with described normally closed port；Described bluetooth module is respectively
It is connected with described normally opened port and described primary processor；Described AUI is connected with described public port；Institute
State chip select logic module to be connected with described control port and described AUI respectively.
Wherein in an embodiment, described high-speed analog switch is single pole double throw analog switch.
A kind of embedded with bluetooth device for upgrading firmware, including above-mentioned embedded with bluetooth firmware upgrade circuit and bluetooth
Upgrading annex connecting line, described bluetooth upgrading annex connecting line is connected with described AUI, outside being used for connecting
Portion's computer.
A kind of digital handset, including above-mentioned embedded with bluetooth firmware upgrade circuit.
Above-mentioned embedded with bluetooth firmware upgrade circuit, device and digital handset, by chip select logic module to attached
The Intelligent Recognition of part interface, control high-speed analog switch switches over, individually using bluetooth module as one
USB device accesses PC, is done directly the quick upgrading of bluetooth module firmware, and this process does not needs primary processor
Participate in, in the case of reducing and take main frame host processor resources, complete the driver of built Bluetooth module
Outside upgrading, simple and reliable.
Brief description
Fig. 1 is the structural representation that traditional intercom is connected with PC；
Fig. 2 is the functional module connection diagram of the utility model one embodiment embedded with bluetooth firmware upgrade circuit；
Fig. 3 is the functional module connection diagram of another embodiment embedded with bluetooth firmware upgrade circuit；
Fig. 4 is the interface diagram of the utility model one embodiment high-speed analog switch.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with attached
Detailed description of the invention of the present utility model is described in detail by figure.Elaborate much have in the following description
Body details is in order to fully understand the utility model.But the utility model can be retouched at this to be much different from
The alternate manner stated is implemented, and those skilled in the art can be in the case of without prejudice to the utility model intension
Doing similar improvement, therefore the utility model is not limited by following public specific embodiment.
It should be noted that when an element is considered as " connection " another element, it can be direct
It is connected to another element or may be simultaneously present centering elements.Hand platform described in the utility model is i.e. hand-held
Intercom, uses this noun for ease of user understands, not as limiting of its scope.
Refer to Fig. 2, which is the functional module of the utility model one embodiment embedded with bluetooth firmware upgrade circuit even
Connecing schematic diagram, embedded with bluetooth firmware upgrade circuit 10 includes: high-speed analog switch the 101st, primary processor is the 102nd,
Bluetooth module the 103rd, AUI 104 and chip select logic module 105.
Primary processor 102 is connected with high-speed analog switch 101.Bluetooth module 103 is opened with High Speed Analog respectively
Pass 101 and primary processor 102 connect.AUI 104 is connected with high-speed analog switch 101.Chip select is patrolled
Collect module 105 to be connected with high-speed analog switch 101 and AUI 104 respectively.AUI 103 is that is right
Machine of saying is for connecting the interface of external accessory or equipment, also known as hand platform AUI 103.
Chip select logic module 105 is for, after identifying that AUI 104 is connected with computer, controlling high speed mould
Intend switch 101 switching so that AUI 104 is individually connected with bluetooth module 103.
By the Intelligent Recognition to AUI for the chip select logic module, control high-speed analog switch switches over,
Individually bluetooth module is accessed PC as a USB device, be done directly the quick of bluetooth module firmware
Upgrading, this process does not needs primary processor and participates in, complete in the case that minimizing takies main frame host processor resources
Become the outside upgrading of the driver of built Bluetooth module, simple and reliable.
In one embodiment, high-speed analog switch 101 includes: control port, public port, normally closed port with
And normally opened port.Primary processor 102 is connected with normally closed port.Bluetooth module 103 respectively with normally opened port and
Primary processor 102 connects.AUI 104 is connected with public port.Chip select logic module 105 respectively with
Control port and AUI 104 connect.
As it is shown on figure 3, in the present embodiment, high-speed analog switch 101 include one group of public port COM1,
COM2, one group of normally closed port NC1, NC2, and one group of normally opened port NO1, NO2.
Below two handoff procedures are divided into two parts to be respectively described, only as a example by USB interface.
(1) conventional sense
Under normal circumstances, hand platform connects when writing frequency other peripheral hardwares such as line or ear microphone of various routine, mould
Intending switch and being in normally closed (NC) position, COM1 has linked NC1, and COM2 end is connected to NC2 end,
The USB interface acquiescence of annex is connected to the primary processor USB interface of main frame, completes configuration, writes frequency etc. various
General communication.
(2) bluetooth firmware upgrade status
When needing independent upgrading bluetooth module driver firmware (Firmware), use a specific connection
Line, i.e. bluetooth upgrading annex connecting line, and AUI connection, connect intercom and PC computer, simulation
Switch switches under the Intelligent Recognition of combinational logic controls, and COM1 has linked NO1, and COM2 end is even
Having received NO2 end, the USB interface of annex has been directly connected to the USB interface of bluetooth module.Now lead
The master controller USB interface of machine is disconnected the connection with AUI.
When disconnecting described bluetooth upgrading annex connecting line, analog switch automatically recovers acquiescence and connects, keeps main frame
Master controller USB interface and the connection of AUI.
In the present embodiment, high-speed analog switch 101 switchs for single pole double throw analog.
Referring to Fig. 4, U1 is a piece of high speed USB switching analoging switch, such as the NLAS7242 of ONSEMI,
Inside comprises single-pole double throw (SPDT) analog switch of two-way independence, and data rate bandwidth can be supported up to
950MHz。
Signal pins :/OE piece selects, S is that path selects, D+ and D-is one group of public port, D1+ and D1-
Being one group of normally closed port, D2+ and D2-is one group of normally opened port.
Switch Control logic true value table such as table 1 below:
Table 1
Corresponding D+ and D-being connected to analog switch U1 of USB_DP_EXT with USB_DN_EXT, outside being
A pair data-signal of department enclosure interface.
USB_DP_MAIN with USB_DN_MAIN is corresponding is connected to D1+ and D1-, is the main process of main frame
A pair data-signal of the USB interface of device.
USB_DP_BT with USB_DN_BT is corresponding is connected to D2+ and D2-, is built Bluetooth module
A pair data-signal of USB interface.
OB_SEL1 and OB_SEL2 inputs a non-conjunction U2-A combinational logic, exports a selection
Signal S, for controlling the switching of U1 analog switch, it is achieved truth table such as table 2 below, wherein 0 represents low electricity
Flat, 1 expression high level.
When OB_SEL1 and OB_SEL2 is ground connection low level simultaneously, the type using for the present embodiment.
OB_SEL1 and OB_SEL2 is connected with 2 stitch that AUI is specified in main frame inside, special
Bluetooth downloading wire attachment tab in, to should two stitch ground connection.
| OB_SEL1 | OB_SEL2 | S | Type of attachment |
| 0 | 0 | 1 | Bluetooth module |
| 0 | 1 | 0 | Headset or write frequency |
| 1 | 0 | 0 | Retain |
| 1 | 1 | 0 | Empty |
Table 2
It is noted that the utility model further relates to a kind of embedded with bluetooth device for upgrading firmware, including above-mentioned
Embedded with bluetooth firmware upgrade circuit and bluetooth upgrading annex connecting line, bluetooth upgrading annex connecting line with attached
Part interface connects.
Bluetooth upgrading annex connecting line is used for connecting outer computer, and chip select logic module recognizes this bluetooth liter
After level annex connecting line, control high-speed analog switch switching so that AUI is individually connected with bluetooth module.
It should be noted that bluetooth upgrading annex connecting line can be selected for existing data wire, the upgrading of this bluetooth is attached
Part connecting line has only to provide specific signal for AUI.
Additionally, it will also be appreciated that the utility model further relates to a kind of digital handset, including above-mentioned
Embedded with bluetooth firmware upgrade circuit.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, can also do
Going out some deformation and improving, these broadly fall into protection domain of the present utility model.Therefore, the utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (5)
1. an embedded with bluetooth firmware upgrade circuit, it is characterised in that include:
High-speed analog switch；
Primary processor, described primary processor is connected with described high-speed analog switch；
Bluetooth module, described bluetooth module is connected with described high-speed analog switch and described primary processor respectively；
AUI, described AUI is connected with described high-speed analog switch；
Chip select logic module, described chip select logic module connects with described high-speed analog switch and described annex respectively
Mouth connects.
2. embedded with bluetooth firmware upgrade circuit according to claim 1, it is characterised in that described high speed
Analog switch includes: control port, public port, normally closed port and normally opened port；
Described primary processor is connected with described normally closed port；
Described bluetooth module is connected with described normally opened port and described primary processor respectively；
Described AUI is connected with described public port；
Described chip select logic module is connected with described control port and described AUI respectively.
3. embedded with bluetooth firmware upgrade circuit according to claim 2, it is characterised in that described high speed
Analog switch is single pole double throw analog switch.
4. an embedded with bluetooth device for upgrading firmware, it is characterised in that include as claims 1 to 3 is arbitrary
Described embedded with bluetooth firmware upgrade circuit and bluetooth upgrading annex connecting line, described bluetooth upgrading annex is even
Wiring is connected with described AUI, is used for connecting outer computer.
5. a digital handset, it is characterised in that include as described in claims 1 to 3 is arbitrary is built-in
Bluetooth firmware upgrading circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620310436.5U CN205721745U (en) | 2016-04-14 | 2016-04-14 | Embedded with bluetooth firmware upgrade circuit, device and digital handset |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620310436.5U CN205721745U (en) | 2016-04-14 | 2016-04-14 | Embedded with bluetooth firmware upgrade circuit, device and digital handset |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205721745U true CN205721745U (en) | 2016-11-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620310436.5U Expired - Fee Related CN205721745U (en) | 2016-04-14 | 2016-04-14 | Embedded with bluetooth firmware upgrade circuit, device and digital handset |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109885517A (en) * | 2017-12-06 | 2019-06-14 | 深圳市冠旭电子股份有限公司 | A kind of switching circuit and terminal device |
| CN110659044A (en) * | 2019-08-29 | 2020-01-07 | 广东思派康电子科技有限公司 | Bluetooth device upgrading method |
| CN110768735A (en) * | 2019-11-05 | 2020-02-07 | 四川爱联科技有限公司 | Bluetooth DTM mode and module test system that volume production mode is multiplexing |
| CN110855462A (en) * | 2018-08-21 | 2020-02-28 | 深圳瑞利声学技术股份有限公司 | Bluetooth OTA firmware upgrading device |
-
2016
- 2016-04-14 CN CN201620310436.5U patent/CN205721745U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109885517A (en) * | 2017-12-06 | 2019-06-14 | 深圳市冠旭电子股份有限公司 | A kind of switching circuit and terminal device |
| CN109885517B (en) * | 2017-12-06 | 2024-01-12 | 深圳市冠旭电子股份有限公司 | Switching circuit and terminal equipment |
| CN110855462A (en) * | 2018-08-21 | 2020-02-28 | 深圳瑞利声学技术股份有限公司 | Bluetooth OTA firmware upgrading device |
| CN110659044A (en) * | 2019-08-29 | 2020-01-07 | 广东思派康电子科技有限公司 | Bluetooth device upgrading method |
| CN110768735A (en) * | 2019-11-05 | 2020-02-07 | 四川爱联科技有限公司 | Bluetooth DTM mode and module test system that volume production mode is multiplexing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20180414 |