CN101102568A - A dual mode terminal and method for communication between modules in this terminal - Google Patents
A dual mode terminal and method for communication between modules in this terminal Download PDFInfo
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- CN101102568A CN101102568A CNA2007101084733A CN200710108473A CN101102568A CN 101102568 A CN101102568 A CN 101102568A CN A2007101084733 A CNA2007101084733 A CN A2007101084733A CN 200710108473 A CN200710108473 A CN 200710108473A CN 101102568 A CN101102568 A CN 101102568A
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Abstract
The dual-mode terminal comprises a first network system module, a second network system module, a random access memory (RAM). Said RAM allows the first network system module and the second network system module to make read/write operation. The invention also reveals a method thereof comprises: the module at sending side writes the data to be sent-out into RAM, and sends a notice the module at receiving side to receive data; after the module at receiving side receives the notice for receiving the data, it reads out data from RAM.
Description
Technical field
The present invention relates to communication means, be specifically related to the mutual method for communicating of intermodule in a kind of dual-mode terminal and this terminal.
Background technology
Dual-mode terminal is with its novelty, and is convenient, and practical characteristics is popularized rapidly.At present the product of double module terminal device has been had certain scale, and the patent that has produced is primarily aimed at following several aspect: dual-mode terminal AccessPort information output control circuit; Use GPIO (GeneralPurposeI/O universaling I/O port) control, use the two intermodular datas transmission that serial ports is finished dual-mode terminal.Can see from above-mentioned patent the patent of communicating by letter between two modules of dual-mode terminal up till now mainly concentrates on and how utilize serial port function to realize exchanges data between two modules, and perfect to this communication process, the phase mutual interference when reducing intermodule output AccessPort information.
The way of using always in the communication plan between two modules of the dual-mode terminal that industry is present:
Communication interface is serial mode (UART) between the dual-mode terminal module, cooperates with serial ports by auxiliary GPIO interface or analog switch usually and finishes, to improve the efficient of serial communication.
This method circuit is fairly simple, but following shortcoming is arranged: (1) UART mouth is because self hardware condition limits, and its traffic rate is lower, is generally 115200bit/s.(2) because the clock of the Baud rate generator of UART derives from the main work clock of baseband controller, frequency is very high, therefore when the UART mouth has exchanges data, baseband controller must be with the very high master clock work of frequency, cause the standby current of terminal bigger like this, make the stand-by time of terminal shorten.
Summary of the invention
The technical problem to be solved in the present invention provides in a kind of dual-mode terminal and this terminal method for communicating between the module, can guarantee to transmit data accuracy and reliability, can improve traffic rate again, and the maintainability and the function that do not influence system simultaneously again realize.
The technical solution used in the present invention is:
A kind of dual-mode terminal comprises the first network formats module and the second network formats module; It is characterized in that, also comprise random access memory ram; Described RAM allows the described first network formats module and the second network formats module to carry out the operation of reading and writing data simultaneously.
Further, described RAM is a dual port RAM;
Described dual port RAM has two groups of independently parallel data, address and control buss, respectively with the corresponding connection of external bus of the first network formats module, the second network formats module.
Further, the memory space of described dual port RAM is divided into respectively between two buffering areas corresponding with two modules:
First module sends the data buffer zone and second module sends the data buffer zone.
Further, the described first network formats module is used for when sending data to the second network formats module, and the data that will send write in the described dual port RAM first module and send in the data buffer zone, and notifies the second network formats module to receive data; Also be used to receive the notice of the reception data that the second network formats module sends, and receiving described notice back reading of data in second module transmission data buffer zone from described dual port RAM;
The described second network formats module is used for when sending data to the first network formats module, and the data that will send write in the described dual port RAM second module and send in the data buffer zone, and notifies the first network formats module to receive data; Also be used to receive the notice of the reception data that the first network formats module sends, and receiving described notice back reading of data in first module transmission data buffer zone from described dual port RAM.
Further, the transmission request signal of the first network formats module links to each other with the accepting state detection signal of the second network formats module, and the transmission request signal of the second network formats module links to each other with the accepting state detection signal of the first network formats module; Wherein sending request signal is output attribute, and the accepting state detection signal is an input attributes;
Described the first/the second network formats module is notified another module to receive data and is meant: the transmission request signal that changes this module;
Described the first/the second network formats module receives that the notice of the reception data that another module sends is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
The method of different network formats intermodule communication in a kind of dual-mode terminal comprises:
The data that A, transmit leg module will need to send write among the RAM, and notify recipient's module to receive data;
After B, recipient's module are received the notice of described reception data, reading of data from RAM.
Further, in the described steps A, the transmit leg module is notified recipient's module to receive data and is meant: the transmit leg module changes the transmission request signal of this module;
Among the described step B, recipient's module receives that the notice that receives data is meant: the transmission request signal that the accepting state detection signal of recipient's module detects the transmit leg module changes.
Further, described RAM is a dual port RAM; Its memory space is divided into respectively corresponding with two modules two and sends data buffer zones.
Further, in the described steps A, the transmit leg module writes data in the transmission data buffer zone of transmit leg module correspondence among the RAM.
Further, when the first network formats module in the dual-mode terminal when the second network formats module sends data, this method specifically comprises:
The data that A1, the first network formats module will need to send write in the transmission data buffer zone of the first network formats module correspondence among the RAM, and change the transmission request signal of the first network formats module;
After the accepting state detection signal of B1, the second network formats module detects the transmission request signal change of the first network formats module, reading of data in the transmission data buffer zone of the first network formats module correspondence from RAM;
When the second network formats module in the dual-mode terminal when the first network formats module sends data, this method specifically comprises:
The data that A1, the second network formats module will need to send write in the transmission data buffer zone of the second network formats module correspondence among the RAM, and change the transmission request signal of the second network formats module;
After the accepting state detection signal of B1, the first network formats module detects the transmission request signal change of the second network formats module, reading of data in the transmission data buffer zone of the second network formats module correspondence from RAM.
The solution of the present invention realizes simple, and communication process is reliable, speed is high; In when communication, the baseband controller of each module is operated in high-frequency master clock or the low auxiliary slow clock of frequency in addition, can both proper communication, and the relative like this standby current that reduced has prolonged stand-by time.
Description of drawings
Fig. 1 is the concrete enforcement block diagram of dual-mode terminal of the present invention;
Fig. 2 is the flow chart of intermodule communication method in the dual-mode terminal of the present invention.
Embodiment
Core concept of the present invention is to increase at least one can allow the many mouthfuls of RAM (random-access memory, random access memory) of two modules reading and writing simultaneously data between CDMA module and gsm module, thereby realizes the transfer of data between the module.Usually, described many mouthfuls of RAM can but be not limited to adopt twoport (Dual Port) RAM, as long as can satisfy two modules while reading and writing data.
To communicate between CDMA and the gsm module, the employing dual port RAM is an example below, specifically sets forth the communication means of two intermodules in dual-mode terminal provided by the present invention and this terminal.
A kind of dual-mode terminal as shown in Figure 1, comprising: the first network formats module, the second network formats module and a dual port RAM.In the description of back, for abbreviate the first network formats module as first module for simplicity, the second network formats module abbreviates second module as.
Wherein, first module is the CDMA terminal module; Second module is the GSM terminal module.The C_IRQ of first module (CDMA sends request signal) and the G_ST (GSM accepting state detection signal) of second module connect together, and wherein C_IRQ is an output attribute, and G_ST is an input attributes; The G_IRQ of second module (GSM sends request signal) and the C_ST (CDMA accepting state detection signal) of first module connect together, and wherein G_IRQ is an output attribute, and C_ST is an input attributes.
Dual port RAM has two groups of independently parallel data, address and control buss, is respectively A group interface bus and B group interface bus.A group interface bus specifically comprises data/address bus A (DB_A), address bus A (AB_A) and control bus A (CB_A); B group interface bus specifically comprises data/address bus B (DB_B), address bus B (AB_B) and control bus B (CB_B).The A group data of described dual port RAM, address and external bus EBI corresponding link to each other of control bus with first module; B group data, address and external bus EBI corresponding link to each other of control bus with second module.The memory space of dual port RAM can but be not limited to be divided between two buffering areas: first module sends interval and second module transmission data buffering interval of data buffering, corresponding with two modules respectively, one is CDMA transmission data buffering interval, and another is that GSM sends the data buffering interval.
Described first module is used for will sending when sending data to second module data write described dual port RAM first module and send in the data buffer zone, and notify second module to receive data; Also be used to receive the notice of the reception data that second module sends, and receiving described notice back reading of data in second module transmission data buffer zone from described dual port RAM;
Described second module is used for will sending when sending data to first module data write described dual port RAM second module and send in the data buffer zone, and notify first module to receive data; Also be used to receive the notice of the reception data that first module sends, and receiving described notice back reading of data in first module transmission data buffer zone from described dual port RAM.
Described first, second module is notified another module to receive data and is meant: the transmission request signal that changes this module;
Described first, second module receives that the notice of the reception data that another module sends is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
The present invention also provides the communication means of intermodule in the described dual-mode terminal, as shown in Figure 2, comprising:
When first module will be when second module sends data, at first---to be that the data that the transmit leg module will need to send are written in the RAM, to notify second module then---be that recipient's module receives data to first module.If among the RAM memory space is divided into the transmission data buffer zone of CDMA and GSM, the CDMA that then data is sent to RAM sends in the data buffer zone; Notify second module method can but be not limited to make C_IRQ to become " 1 " by " 0 ", produce a rising edge and send to second module, process of transmitting finishes.
When second module receives the data that first module sends, such as when the G_ST input when having rising edge to take place, GSM responds interruption immediately, reads corresponding data from RAM; If transmit leg is data to be sent to described CDMA send in the data buffer zone, then in getting, this buffering reads corresponding data, and receiving course finishes.
Same, when second module will be when first module sends data, second module at first---be that data that the transmit leg module will need to send are written to GSM and send in the data buffer zone, make G IRQ become " 1 " then by " 0 ", produce a rising edge, notify first module---be that recipient's module receives data, process of transmitting finishes.
When first module receives second module and sends data, when the C_ST input when having rising edge to take place, first module responds interruption immediately, sends reading of data the data buffer zone from GSM, receiving course finishes.
Below only for illustrating, in actual applications, first module and second module all can be in the terminal module of following network formats any one: CDMA (Code Division Multiple Access, code division multiple access), GSM (Global System for Mobile Communications, global system for mobile communications), PHS (Personal Handyphone System, the personal communication connecting system), WCDMA (Wide band CDMA, Wideband Code Division Multiple Access (WCDMA)) and TD-SCMDA (Division-SynchronousCode Division Multiple Access, TD SDMA) terminal module.
In actual applications, be not limited to notify another module to receive data with the mode that produces rising edge, also can be with trailing edge or other signal variation pattern; And be not limited to that RAM only is divided into first, second module and send the data buffer zone.
Above scheme has the following advantages:
A, circuit are simple.Only need in dual-mode terminal, to increase a dual port RAM device, and its two groups of parallel datas, address and control buss are linked to each other with the external bus interface EBI of two modules in the dual-mode terminal respectively get final product; And each module only needs 2 control signals.
That B, communication process realize is simple, reliable, speed is high.Propose the transmission request by the sending direction recipient, and write data in the dual port RAM, the recipient gets final product from the dual port RAM reading of data subsequently; And when the recipient read first data, transmit leg can be write second batch data simultaneously; When perhaps the recipient reads first data, can in RAM, write the data that oneself will send simultaneously, so improved traffic rate.
C, reduce standby current, prolongs standby time.Because dual-mode terminal communication method based on the dual port RAM mode, when communication, the baseband controller that does not rely on each module is operated in the still auxiliary slow clock (being generally 32.768KHz) of master clock (frequency height), therefore when slow clock, and also can proper communication.Relative like this with use the UART communication mode, reduced standby current.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of dual-mode terminal comprises the first network formats module and the second network formats module; It is characterized in that, also comprise a random access memory ram; Described RAM allows the described first network formats module and the second network formats module to carry out the operation of reading and writing data simultaneously.
2, dual-mode terminal as claimed in claim 1 is characterized in that:
Described RAM is a dual port RAM;
Described dual port RAM has two groups of independently parallel data, address and control buss, respectively with the corresponding connection of external bus of the first network formats module, the second network formats module.
3, dual-mode terminal as claimed in claim 2 is characterized in that, the memory space of described dual port RAM is divided into respectively between two buffering areas corresponding with two modules:
First module sends the data buffer zone and second module sends the data buffer zone.
4, dual-mode terminal as claimed in claim 3 is characterized in that:
The described first network formats module is used for when sending data to the second network formats module, and the data that will send write in the described dual port RAM first module and send in the data buffer zone, and notifies the second network formats module to receive data; Also be used to receive the notice of the reception data that the second network formats module sends, and receiving described notice back reading of data in second module transmission data buffer zone from described dual port RAM;
The described second network formats module is used for when sending data to the first network formats module, and the data that will send write in the described dual port RAM second module and send in the data buffer zone, and notifies the first network formats module to receive data; Also be used to receive the notice of the reception data that the first network formats module sends, and receiving described notice back reading of data in first module transmission data buffer zone from described dual port RAM.
5, dual-mode terminal as claimed in claim 4, it is characterized in that: the transmission request signal of the first network formats module links to each other with the accepting state detection signal of the second network formats module, and the transmission request signal of the second network formats module links to each other with the accepting state detection signal of the first network formats module; Wherein sending request signal is output attribute, and the accepting state detection signal is an input attributes;
Described the first/the second network formats module is notified another module to receive data and is meant: the transmission request signal that changes this module;
Described the first/the second network formats module receives that the notice of the reception data that another module sends is meant: the transmission request signal that the accepting state detection signal of this module detects another module changes.
6, the method for different network formats intermodule communication in a kind of dual-mode terminal comprises:
The data that A, transmit leg module will need to send write among the RAM, and notify recipient's module to receive data;
After B, recipient's module are received the notice of described reception data, reading of data from RAM.
7, method as claimed in claim 6 is characterized in that:
In the described steps A, the transmit leg module is notified recipient's module to receive data and is meant: the transmit leg module changes the transmission request signal of this module;
Among the described step B, recipient's module receives that the notice that receives data is meant: the transmission request signal that the accepting state detection signal of recipient's module detects the transmit leg module changes.
8, method as claimed in claim 6 is characterized in that: described RAM is a dual port RAM; Its memory space is divided into respectively corresponding with two modules two and sends data buffer zones.
9, method as claimed in claim 8 is characterized in that, in the described steps A, the transmit leg module writes data in the transmission data buffer zone of transmit leg module correspondence among the RAM.
10, method as claimed in claim 9 is characterized in that:
When the first network formats module in the dual-mode terminal when the second network formats module sends data, this method specifically comprises:
The data that A1, the first network formats module will need to send write in the transmission data buffer zone of the first network formats module correspondence among the RAM, and change the transmission request signal of the first network formats module;
After the accepting state detection signal of B1, the second network formats module detects the transmission request signal change of the first network formats module, reading of data in the transmission data buffer zone of the first network formats module correspondence from RAM;
When the second network formats module in the dual-mode terminal when the first network formats module sends data, this method specifically comprises:
The data that A1, the second network formats module will need to send write in the transmission data buffer zone of the second network formats module correspondence among the RAM, and change the transmission request signal of the second network formats module;
After the accepting state detection signal of B1, the first network formats module detects the transmission request signal change of the second network formats module, reading of data in the transmission data buffer zone of the second network formats module correspondence from RAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101084733A CN101102568A (en) | 2007-06-14 | 2007-06-14 | A dual mode terminal and method for communication between modules in this terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101084733A CN101102568A (en) | 2007-06-14 | 2007-06-14 | A dual mode terminal and method for communication between modules in this terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075914A (en) * | 2010-12-29 | 2011-05-25 | 上海华勤通讯技术有限公司 | Method for upgrading dual-mode mobile phone |
| CN106547719A (en) * | 2016-09-26 | 2017-03-29 | 中国电子科技集团公司第二十九研究所 | A kind of system communication and control process synchronous method |
| CN115001643A (en) * | 2022-06-20 | 2022-09-02 | 广州万协通信息技术有限公司 | System and method for realizing SWP full duplex communication |
-
2007
- 2007-06-14 CN CNA2007101084733A patent/CN101102568A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102075914A (en) * | 2010-12-29 | 2011-05-25 | 上海华勤通讯技术有限公司 | Method for upgrading dual-mode mobile phone |
| CN106547719A (en) * | 2016-09-26 | 2017-03-29 | 中国电子科技集团公司第二十九研究所 | A kind of system communication and control process synchronous method |
| CN115001643A (en) * | 2022-06-20 | 2022-09-02 | 广州万协通信息技术有限公司 | System and method for realizing SWP full duplex communication |
| CN115001643B (en) * | 2022-06-20 | 2023-10-03 | 广州万协通信息技术有限公司 | System and method for realizing SWP full duplex communication |
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Application publication date: 20080109 |