CN108112008A - A kind of circuit for realizing SIM card function, method and terminal - Google Patents
A kind of circuit for realizing SIM card function, method and terminal Download PDFInfo
- Publication number
- CN108112008A CN108112008A CN201711316016.3A CN201711316016A CN108112008A CN 108112008 A CN108112008 A CN 108112008A CN 201711316016 A CN201711316016 A CN 201711316016A CN 108112008 A CN108112008 A CN 108112008A
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- Prior art keywords
- sim card
- module
- main processor
- modem
- processor modules
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/183—Processing at user equipment or user record carrier
-
- 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
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
- H04W8/20—Transfer of user or subscriber data
- H04W8/205—Transfer to or from user equipment or user record carrier
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
Abstract
A kind of circuit for realizing SIM card function, including Modem SIM cards module, main processor modules, triode module and diode (led) module, wherein, Modem SIM card modules, including I/O interfaces, Reset signaling interfaces and Clock signaling interfaces；Main processor modules, including fracture in fracture and second in UART interface, first；Modem SIM card modules, I/O interfaces are connected by the UART interface of diode (led) module and main processor modules；Fracture connects in the first of its Reset signaling interface and main processor modules；Its Clock signaling interface pass through triode module and main processor modules second in fracture connect；UART can simulate GPIO interface and the SIM card module interaction of Modem；Main processor modules, UART interface simulation GPIO interface are interacted with Modem SIM card Module SIM cards.The present invention also provides a kind of methods and terminal for realizing SIM card function, and user's rate cost is reduced while can not increasing terminal cloth plate suqare and production prices.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of circuit for realizing SIM card function, method and end
End.
Background technology
SIM at present（Subscriber Identification Module）Card mainly has entity SIM card and ESIM
（Embedded Subscriber Identification Module）Block two kinds of implementation methods, both of which can increase terminal
The cloth plate suqare of product.Entity SIM card terminal needs SIM card holder, and ESIM card terminals need chip space, and ESIM
Card can also increase the price of end product.In addition, if we go abroad to use cheap SIM card rate, can only select more
Local SIM card or the terminal using some specific models are changed, is so experienced for user poor.And the present invention is not
The cloth plate suqare of end product and terminal cost are only reduced, while can COS in software be updated by network（Chip
Operating System）The critical data of system reduces the mobile phone rate cost for the user that goes abroad.And have on the market indivedual
End product also supports virtual SIM card, but needs to change the radio frequency protocol stack of the end product and SIM card agreement could be real
Existing, this is difficult for common developer.
The content of the invention
In order to solve the shortcomings of the prior art, it is an object of the invention to provide a kind of electricity for realizing SIM card function
Road, method and terminal reduce user's rate cost while can not increasing terminal cloth plate suqare and production prices.
To achieve the above object, the circuit provided by the invention for realizing SIM card function, including Modem SIM cards module, master
Processor module, triode module and diode (led) module, wherein,
The Modem SIM cards module, including I/O interfaces, Reset signaling interfaces and Clock signaling interfaces；
The main processor modules, including fracture in fracture and second in UART interface, first；
The Modem SIM cards module, I/O interfaces are connect by the diode (led) module and the UART of the main processor modules
Mouth connection；Fracture is connected in its Reset signaling interface and the first of the main processor modules；Its Clock signaling interface passes through
Fracture is connected in the triode module and the second of the main processor modules；
UART can simulate GPIO interface and the SIM card module interaction of Modem；
The main processor modules, UART interface simulation GPIO interface are interacted with the Modem SIM cards Module SIM card.
Further, the diode (led) module includes a switching diode, anode and the Modem SIM cards module
I/O interfaces, the UART interface the connection of RXD interfaces, cathode is connected with the TXD interfaces of the UART interface, wherein,
The TXD interfaces send data by simulating GIPO interfaces,
The RXD interfaces set the different rates of simulation SIM card by changing baud rate.
Further, the triode module, it is described including triode, first resistor, second resistance and 3rd resistor
One end of Clock signaling interfaces and first resistor connects, the other end of first resistor and one end of second resistance and triode
Base stage connects, the other end of second resistance and the emitter ground connection of triode, the collector of triode and one end of 3rd resistor
It being connected with fracture in described second, the other end of 3rd resistor is connected with VIO, wherein,
The Modem SIM cards module, terminal in a dormant state when, by the data received in described second fracture send
Clock signals wake up the main processor modules, to inquire about SIM card state.
To achieve the above object, the method provided by the invention for realizing SIM card function, comprises the following steps：
Modem SIM cards module sends interrupt requests to main processor modules, and is carried out by normal SIM card and main processor modules
Interaction；
The request that networks is initiated to base station, the authentication information according to transmitted by base station obtains authenticating result by cipher key calculation, and will
It is sent to base station；
The authenticating result is compared with itself result of calculation for base station, if comparison result is consistent, accessing terminal to network；
If comparison result is inconsistent, authentication information is resend.
Further, the step of Modem SIM cards module is to main processor modules transmission interrupt requests, are further wrapped
It includes：
Starting up of terminal, the module initialization of Modem SIM cards or the terminal call offline mode；
The Reset signaling interfaces of the Modem SIM cards module generate the Reset signals and trigger the primary processor mould
Fracture in the first of block.
Further, described the step of being interacted by normal SIM card and main processor modules, further comprise：
After fracture is triggered in the first of the main processor modules, dependent instruction is sent to by UART interface described
Modem SIM card modules；
After the Modem SIM cards module receives dependent instruction data, file access is initiated by UART interface；
After the main processor modules receive dependent instruction, replied accordingly according to COS system for content.
Further, the method for realizing SIM card function further comprises：
SIM card state is periodically inquired about according to Clock signals.
Further, described the step of SIM card state is periodically inquired about according to Clock signals, further comprise：
Terminal in a dormant state when, SIM card carry out data transmission；
The Clock signals that SIM card generated during the transmission of data are sent to by the main process task mould by Clock signaling interfaces
Block, fracture in triggering second, to wake up the main processor modules；
The information exchange of SIM card state is completed by UART interface.
To achieve the above object, the terminal provided by the invention for realizing SIM card function, including any of the above-described realization SIM card
The circuit of function, the terminal is using any of the above-described method for realizing SIM card function.
Circuit, method and the terminal of the realizations SIM card function of the present invention, by main processor modules by UART interface and
Modem SIM cards module carries out SIM card associated documents interaction, can not increase and lead in the case of terminal cloth plate suqare and production prices
It crosses long-range SIM card data of replacing and reduces special user's rate cost.
The present invention realization SIM card function circuit, method and terminal, by terminal in a dormant state when, Modem
SIM card module, the data received according to SIM card machine fracture in second send Clock signals, wake up main processor modules, with
Inquire about SIM card state.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that being understood by implementing the present invention.
Description of the drawings
Attached drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, and with the present invention's
Embodiment together, for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the block diagram according to the circuit of the realization SIM card function of the present invention；
Fig. 2 is the schematic diagram according to the circuit of the realization SIM card function of the present invention；
Fig. 3 is the method flow diagram according to the realization SIM card function of the present invention.
Specific embodiment
The preferred embodiment of the present invention is illustrated below in conjunction with attached drawing, it should be understood that preferred reality described herein
It applies example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is the block diagram according to the circuit of the realization SIM card function of the present invention.As shown in Figure 1, realize SIM card function
SIM card interface circuit 100 includes：Modem SIM cards module 101, main processor modules 102, diode (led) module 103, Yi Jisan
Pole pipe module 104.
The I/O of Modem SIM cards module 101（Input/Output；Input and output）Interface is connected by diode (led) module 103
It is connected to the UART interface of main processor modules 102, the Reset signals of Modem SIM cards module 101（Reset signal）Interface is direct
It is connected to fracture in the first of main processor modules 102, the Clock signals of Modem SIM cards module 101（Clock signal）Interface
Fracture in the second of main processor modules 102 is connected to by triode module 104.
Fig. 2 is the schematic diagram according to the circuit of the realization SIM card function of the present invention.As shown in Fig. 2, diode (led) module 103
For a switching diode D1, anode and the I/O interfaces of Modem SIM cards module 101 and the UART of main processor modules 102
The RXD of interface（Receive Data）Interface connects, cathode and the TXD of the UART interface of main processor modules 102（Transmit
Data）Interface connects.Main processor modules 102 can simulate GPIO by UART interface as a result,（General Purpose
Input Output；Universal input/output）Interface is interacted with Modem SIM cards module 101.UART interface sending and receiving data
Meet ISO7816 agreements.In addition, TXD interfaces are configured as output to pattern, data, transmitted number are sent by simulating GPIO
According to form by the start bit of 1（Start Bit）, the data bit of 8（Data Bits）And the check bit of 1（Parity
Bit）Composition, and RXD interfaces are configured to input pattern, receive the data transmitted by Modem SIM cards module 101, UART interface
Can the different rates of simulation SIM card be set by changing baud rate.
The Reset signaling interfaces of Modem SIM cards module 101 are directly connected to 1 mouthful of the interruption of main processor modules 102 i.e.
INT1.As a result, after terminal calls offline mode or SIM card resets, Modem SIM cards module 101 connects according to Reset signals
Mouth generates Reset signals（Reset signal）, INT1 is sent to via Reset signaling interfaces（Interrupt 1 mouthful）, main processor modules
102 are triggered.After main processor modules 102 detect level change by INT1, main processor modules 102 can call COS
System program actively initiates data interaction to Modem SIM cards module 101, so as to complete SIM card registration.
The Clock signaling interfaces of Modem SIM cards module 101 are connected to main processor modules by triode module 104
102 INT2（Interrupt 2 mouthfuls）.Specifically, Clock signaling interfaces are connected with one end of first resistor R1；First resistor R1's is another
One end is connected with one end of second resistance R2 and the base stage B of triode Q1；The other end of second resistance R2 and the hair of triode Q1
Emitter-base bandgap grading E is grounded；One end of the collector C and 3rd resistor R3 of triode Q1 are connected with INT2；The other end of 3rd resistor R3 with
VIO (INT2 interrupts 2 mouthfuls of voltage) connection.Due to when terminal is in holding state, the main processor modules 102 of part terminal
UART interface in a dormant state, even so UART interface in a dormant state when, if SIM card receives number
According to can then be triggered and be interrupted so as to waking up main processor modules 102 by triode module 104.Main processor modules 102 as a result,
UART interface can be interacted with Modem SIM cards module 101.
SIM card interface circuit 100 can interrupt mouth mold by the UART interface of main processor modules 102 and 2 and intend SIM card
Hardware interface, and then coordinate COS systems, can realize the function of SIM card.
Below with reference to Fig. 3, the method for the realization SIM card function of the present invention is described in detail.
First, in step 301, Reset signaling interfaces generate Reset signals.In step 301, starting up of terminal, Modem
After SIM card module 101 initializes or terminal calls offline mode, the production of the Reset signaling interfaces of Modem SIM cards module 101
Raw Reset signals, and pass through Reset signaling interfaces and be sent to main processor modules 102, to trigger main processor modules 102
Interrupt 1 mouthful.
In step 302, dependent instruction is sent by TXD interfaces.In step 302, in the interruption of main processor modules 102
After 1 mouthful is triggered, dependent instruction is sent to by Modem SIM cards module 101 by TXD interfaces, to interact.
In step 303, SIM card associated documents interaction is carried out.In step 303, the I/O of Modem SIM cards module 101 connects
After mouth receives dependent instruction data, file access is initiated according to normal SIM card flow, RXD is sent it to by I/O interfaces
Interface；Main processor modules 102 are replied accordingly after receiving dependent instruction according to COS system for content.
In step 304, the request that networks is initiated to base station.In step 304, Modem SIM cards module 101 is by virtual SIM
Card key message is sent to corresponding base station, while initiates the request that networks.
In step 305, base station sends authentication information.In step 305, base station is according to the SIM card relevant information received,
Corresponding authentication random number is replied to Modem SIM cards module 101.
In step 306, cipher key calculation is carried out to authentication information and its result is sent to base station.Within step 306,
The random number received is sent to main processor modules 102 by Modem SIM cards module 101 by I/O interfaces；Primary processor mould
Authenticating result is replied to Modem SIM cards module 101 by block 102 by cipher key calculation in COS systems；Modem SIM card modules
Authenticating result is synchronously sent to base station by 101.
In step 307, base station permits networking.In step 307, after base station receives authenticating result, itself and itself are counted
The result of calculation is compared, if comparative result is inconsistent, back to step 205；If comparative result is consistent, carry out down
One step.
In step 308, accessing terminal to network.
In step 309, SIM card state is periodically inquired about.In a step 309, in accessing terminal to network and in a dormant state
When, the periodically inquiry SIM card state, and send relevant inquiring data of Modem SIM cards module 101.
In step 310, Clock signals are generated so as to trigger UART interface.In the step 310, Modem SIM cards module
When 101 I/O interfaces send data, Clock signals are sent to by main processor modules 102 by Clock signaling interfaces, to touch
Send out 2 mouthfuls of the interruption of main processor modules 102；After main processor modules 102 detect interrupt trigger signal, primary processor mould is waken up
Block 102, so as to activate UART interface function.
In step 311, the information exchange of completion SIM card state.In step 311, Modem SIM cards module 101 and master
Processor module 102 completes the information exchange of SIM card state by UART interface.
The terminal of the realization SIM card function of the embodiment of the present invention includes the circuit of above-mentioned realization SIM card function, the terminal
Using the method for above-mentioned realization SIM card function.
According to an embodiment of the invention, main processor modules carry out SIM card by UART interface and Modem SIM cards module
Associated documents interact.By remotely replacing SIM card number in the case of therefore, it is possible to not increase terminal cloth plate suqare and production prices
According to reduction special user's rate cost.
According to an embodiment of the invention, terminal in a dormant state when, Modem SIM card modules, according to SIM card machine receive
To data in second fracture send Clock signals, wake up main processor modules, to inquire about SIM card state.
One of ordinary skill in the art will appreciate that：The foregoing is only a preferred embodiment of the present invention, and does not have to
In the limitation present invention, although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, still can to foregoing embodiments record technical solution modify or to which part technical characteristic into
Row equivalent substitution.Within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of circuit for realizing SIM card function, including Modem SIM cards module, main processor modules, triode module, with
And diode (led) module, which is characterized in that
The Modem SIM cards module, including I/O interfaces, Reset signaling interfaces and Clock signaling interfaces；
The main processor modules, including fracture in fracture and second in UART interface, first；
The Modem SIM cards module, I/O interfaces are connect by the diode (led) module and the UART of the main processor modules
Mouth connection；Fracture is connected in its Reset signaling interface and the first of the main processor modules；Its Clock signaling interface passes through
Fracture is connected in the triode module and the second of the main processor modules；
UART interface can simulate GPIO interface and the SIM card module interaction of Modem；
The main processor modules, UART interface simulation GPIO interface are interacted with the Modem SIM cards Module SIM card.
2. the circuit according to claim 1 for realizing SIM card function, it is characterised in that：
The diode (led) module includes I/O interfaces, the institute of a switching diode, anode and the Modem SIM cards module
The RXD interfaces connection of UART interface is stated, cathode is connected with the TXD interfaces of the UART interface, wherein,
The TXD interfaces send data by simulating GIPO interfaces,
The RXD interfaces receive data by simulating GIPO interfaces,
The UART interface sets the different rates of simulation SIM card by changing baud rate.
3. the circuit according to claim 1 or 2 for realizing SIM card function, it is characterised in that：
The triode module, including triode, first resistor, second resistance and 3rd resistor, the Clock signaling interfaces with
One end connection of first resistor, the other end of first resistor and the base stage of one end of second resistance and triode connect, the second electricity
The other end of resistance and the emitter of triode are grounded, fracture in the collector of triode and one end of 3rd resistor and described second
Connection, the other end of 3rd resistor are connected with VIO, wherein,
The Modem SIM cards module, terminal in a dormant state when, by the data received in described second fracture send
Clock signals wake up the main processor modules, to inquire about SIM card state.
A kind of 4. method for realizing SIM card function, which is characterized in that comprise the following steps：
Modem SIM cards module sends interrupt requests to main processor modules, and is carried out by normal SIM card and main processor modules
Interaction；
The request that networks is initiated to base station, the authentication information according to transmitted by base station obtains authenticating result by cipher key calculation, and will
It is sent to base station；
The authenticating result is compared with itself result of calculation for base station, if comparison result is consistent, accessing terminal to network；
If comparison result is inconsistent, authentication information is resend.
5. it is according to claim 4 realize SIM card function method, which is characterized in that the Modem SIM cards module to
Main processor modules send the step of interrupt requests, further comprise：
Starting up of terminal, the module initialization of Modem SIM cards or the terminal call offline mode；
The Reset signaling interfaces of the Modem SIM cards module generate the Reset signals and trigger the primary processor mould
Fracture in the first of block.
6. the method according to claim 4 for realizing SIM card function, which is characterized in that described to press normal SIM card and main place
The step of reason device module interacts, further comprises：
After fracture is triggered in the first of the main processor modules, dependent instruction is sent to by UART interface described
Modem SIM card modules；
After the Modem SIM cards module receives dependent instruction data, file access is initiated by UART interface；
After the main processor modules receive dependent instruction, replied accordingly according to COS system for content.
7. the method for the realization SIM card function according to any one of claim 4 to 6, which is characterized in that further bag
It includes：
SIM card state is periodically inquired about according to Clock signals.
8. the method according to claim 7 for realizing SIM card function, which is characterized in that described regular according to Clock signals
The step of inquiring about SIM card state, further comprises：
Terminal in a dormant state when, SIM card carry out data transmission；
The Clock signals that SIM card generated during the transmission of data are sent to by the main process task mould by Clock signaling interfaces
Block, fracture in triggering second, to wake up the main processor modules；
The information exchange of SIM card state is completed by UART interface.
9. a kind of terminal for realizing SIM card function realizes the circuit of SIM card function including claim 1-3 any one of them,
It is characterized in that, the method that the terminal realizes SIM card function using claim 4-8 any one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316016.3A CN108112008A (en) | 2017-12-12 | 2017-12-12 | A kind of circuit for realizing SIM card function, method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711316016.3A CN108112008A (en) | 2017-12-12 | 2017-12-12 | A kind of circuit for realizing SIM card function, method and terminal |
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| CN108112008A true CN108112008A (en) | 2018-06-01 |
Family
ID=62208482
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711316016.3A Pending CN108112008A (en) | 2017-12-12 | 2017-12-12 | A kind of circuit for realizing SIM card function, method and terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114297104A (en) * | 2021-12-30 | 2022-04-08 | 高新兴物联科技有限公司 | Debugging data transmission method, device, equipment and storage medium |
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Application publication date: 20180601 |