CN104636306B - A kind of SCM Based RFFE host device interfaces transplantation device and method - Google Patents
A kind of SCM Based RFFE host device interfaces transplantation device and method Download PDFInfo
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- CN104636306B CN104636306B CN201510104198.2A CN201510104198A CN104636306B CN 104636306 B CN104636306 B CN 104636306B CN 201510104198 A CN201510104198 A CN 201510104198A CN 104636306 B CN104636306 B CN 104636306B
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
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Abstract
The invention discloses a kind of SCM Based RFFE host device interfaces transplantation device and method, it uses the clock that the tick interrupt of common single-chip microcomputer communicates as RFFE, RFFE underlying protocols are write with standard ANSI C languages, it will be packaged by software with RFFE agreement relevant portions, and protocol analysis part has software to be simulated completely, therefore this method can realize that RFFE is communicated in almost all of single-chip microcomputer, it also simplify the transplanting between different platform, therefore this method can utilize the method for common microcomputer development RFFE host device interfaces to can be very good to substitute special RFIC, there is reduction testing cost, configuration is flexible, easily debugging, the advantages that conveniently extending other functions.
Description
Technical field
The present invention relates to a kind of RFFE host device interfaces development device, more particularly to a kind of SCM Based RFFE master to set
Standby interface transplantation device and method, belong to communication electronics technical field.
Background technology
With increasing rapidly for smart mobile phone, mobile phone complexity is also lifted increasingly.In addition, WLAN, bluetooth, the whole world
Alignment system, FM receiver and other wireless connecting functions also increase the complexity of Mobile Communications.What these were continuously added
Wireless standard has constructed a kind of demand to that can cover the multi radio solution of 10 or more frequency ranges.Therefore, it is required
Radio-frequency front-end quantity also increase.For mobile-phone manufacturers, these complicated equipment can be well controlled to turn into one big
Problem.
Therefore, MIPI alliances are proposed a kind of radio-frequency front-end（RFFE）Interface, the purpose is to provide one kind for radio-frequency front-end
Consistent control method, so as to which required encapsulation pin and circuit board wiring is greatly decreased.Key property includes：
The all types of RF front ends of-control；
- support point-to-multipoint；
- multimode/multifrequency and multiple antennas；
- it is up to 15 slave units per bus；
- general controls interface；
In RFFE standards, RFIC is the main equipment of interface, can be communicated with most 15 slave units.
General RFIC is that semiconductor manufacturer customizes according to RFFE standards, and the chip with RFFE hardware interfaces, shortcoming is kind
Class is few, and cost is high, and debugging difficulty is big, and flexibility ratio is low, and function is few.
The content of the invention
The technical problems to be solved by the invention are to provide for the deficiency of background technology and a kind of a kind of be based on single-chip microcomputer
RFFE host device interfaces transplantation device and method.
The present invention uses following technical scheme to solve above-mentioned technical problem：
A kind of SCM Based RFFE host device interfaces transplantation device, include I O layer, driving layer and application layer, the IO
Layer includes clock signal unit, register, interrupt vector unit, timer and communication interface, and the driving layer connects comprising communication
Mouth, RFFE protocol analysis unit, RFFE communication units, the application layer includes data transceiving unit and signal designation control is single
Member；
Wherein, clock signal unit, for carrying out the frequency dividing of clock frequency according to the requirement of communication frequency；
Register, for instructing, data and address it is temporary；
Interrupt vector unit, for forming the entry address of corresponding interrupt service routine, depositing interrupt service routine
First address；
Timer；Record for the time；
Communication interface, for being connected with host computer and other communication apparatus；
RFFE protocol analysis units, for being packaged to RFFE agreements；
RFFE communication units, for the reception and transmission to RFFE protocol datas；
Data transceiving unit, reception and transmission for RFFE protocol datas；
Signal designation control unit, for reading or writing data to RFFE slave units.
It is described as a kind of further preferred scheme of SCM Based RFFE host device interfaces transplantation device of the present invention
Communication interface includes at least one of USB, UART, IIC, SPI, CAN.
As a kind of further preferred scheme of SCM Based RFFE host device interfaces transplantation device of the present invention, deposit
The model 74HC595DR2G of device.
It is described as a kind of further preferred scheme of SCM Based RFFE host device interfaces transplantation device of the present invention
Timer uses 555 timers.
It is described as a kind of further preferred scheme of SCM Based RFFE host device interfaces transplantation device of the present invention
Clock signal unit uses YZ-9820 clock units.
A kind of method of SCM Based RFFE host device interfaces transplanting, is specifically comprised the following steps：
Step 1, RFFE communication frequencies as needed, calculate and internal dominant frequency is divided and then show that RFFE leads to
The clock of news；
Step 2, according to MIPI RFFE agreements, universal input/output interface is driven by way of software simulation, is edited soft
Part realizes the communication identification code of bottom, and open rational api interface is used for software application layer calling；
Step 3, interface general exploitation USB, UART, IIC, SPI, CAN, external equipment can pass through these general-purpose interfaces
To control RFFE interfaces, realize the purpose of control RFFE slave units according to the command calls RFFE interface functions of parsing.
The present invention compared with prior art, has following technique effect using above technical scheme：
1. the clock that the present invention communicates by the use of the tick interrupt of common single-chip microcomputer as RFFE, is write with standard ANSI C languages
RFFE underlying protocols, it will be packaged by software with RFFE agreement relevant portions, and there is software protocol analysis part completely
Simulated, therefore this method can realize that RFFE is communicated in almost all of single-chip microcomputer, also simplify between different platform
Transplanting；
2. the present invention can be very good to substitute specially using the method for common microcomputer development RFFE host device interfaces
RFIC, there is reduction testing cost, configuration is flexible, and easily debugging, conveniently extends other functions.
Brief description of the drawings
Fig. 1 is that the USB/UART/IIC/SPI/CAN of the present invention turns the software architecture diagram of RFFE converters；
Fig. 2 is that the USB/UART/IIC/SPI/CAN of the present invention turns the software flow pattern of RFFE converters.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of SCM Based RFFE host device interfaces transplantation device, comprising I O layer, driving layer and is answered
With layer, the I O layer includes clock signal unit, register, interrupt vector unit, timer and communication interface, the driving layer
Comprising communication interface, RFFE protocol analysis unit, RFFE communication units, the application layer includes data transceiving unit and signal refers to
Show control unit；
Wherein, clock signal unit, for carrying out the frequency dividing of clock frequency according to the requirement of communication frequency；
Register, for instructing, data and address it is temporary；
Interrupt vector unit, for forming the entry address of corresponding interrupt service routine, depositing interrupt service routine
First address；
Timer；Record for the time；
Communication interface, for being connected with host computer and other communication apparatus；
RFFE protocol analysis units, for being packaged to RFFE agreements；
RFFE communication units, for the reception and transmission to RFFE protocol datas；
Data transceiving unit, reception and transmission for RFFE protocol datas；
Signal designation control unit, for reading or writing data to RFFE slave units.
Wherein, the communication interface includes at least one of USB, UART, IIC, SPI, CAN, the model of register
74HC595DR2G, the timer use 555 timers, and the clock signal unit uses YZ-9820 clock units.
As shown in Fig. 2 a kind of method of SCM Based RFFE host device interfaces transplanting, is specifically comprised the following steps：
Step 1, RFFE communication frequencies as needed, calculate and internal dominant frequency is divided and then show that RFFE leads to
The clock of news；
Step 2, according to MIPI RFFE agreements, universal input/output interface is driven by way of software simulation, is edited soft
Part realizes the communication identification code of bottom, and open rational api interface is used for software application layer calling；
Step 3, interface general exploitation USB, UART, IIC, SPI, CAN, external equipment can pass through these general-purpose interfaces
To control RFFE interfaces, realize the purpose of control RFFE slave units according to the command calls RFFE interface functions of parsing.
Flow chart as shown in Figure 2, a single-chip microcomputer is first selected, Singlechip clock etc. is initialized, reinitialized
RFFE modules, the order sent according to interfaces such as USB carry out RFFE communications, read or write data to RFFE slave units, and will
The data read feed back to the upper computer equipments such as terminal by interfaces such as USB.
Embodiment is as follows：
1st, Singlechip clock is initialized；
2nd, RFFE modules are initialized；
3rd, the order for waiting the interfaces such as USB to send；
4th, the order that the interfaces such as USB are sent is parsed；
5th, according to the command calls corresponding RF FE interface functions of parsing；
6th, read or write data to RFFE slave units；
7th, the data read are returned by interfaces such as USB；
8th, the order for waiting the interfaces such as next USB to send；
It is i.e. applicable that the registers such as bottom tick interrupt need to be only changed according to different single-chip microcomputers in above-described embodiment, herein
Not illustrated in greater detail.
Software development principle：
1st, I O layer is needs modification part when transplant for different single-chip microcomputers, mainly including basic port and register, when
Clock signal, interrupt vector, USB/UART/IIC/SPI/CAN, timer etc..Particularly, exported after system clock is divided
The clock that clock will communicate as RFFE, the clock frequency are communication frequency, need to change according to the requirement of different communication frequencies
Divide multiple.
2nd, driving layer is related to the programmings such as the communication such as some USB/UART/IIC/SPI/CAN, RFFE communications.Wherein, USB/
UART/IIC/SPI/CAN can use one or more interfaces according to actual conditions, for being communicated with host computer or other equipment,
Receive order or transmission data；RFFE communications are RFFE protocol analysis part, are herein packaged RFFE agreements, to application layer
Function interface is provided, calls tick interrupt to enter line command transmission, carries out data transmission simultaneously.
Application layer carries out the exploitation of application program according to the interface function of driving layer, including transmits data, letter with host computer
Number instruction control etc..
The present invention cleverly uses the clock that the tick interrupt of common single-chip microcomputer communicates as RFFE, with standard ANSI C languages
Speech writes RFFE underlying protocols, will be packaged by software with RFFE agreement relevant portions, and protocol analysis part has completely
Software is simulated, therefore this method can realize that RFFE is communicated in almost all of single-chip microcomputer, also simplify in difference
Transplanting between platform, therefore this method can utilize the method for common microcomputer development RFFE host device interfaces to can be very good to replace
For special RFIC, there is reduction testing cost, configuration is flexible, easily debugging, the advantages that conveniently extending other functions.
Although this specification with reference to above-mentioned each embodiment to present invention has been detailed description, ability
Domain it is to be appreciated by one skilled in the art that still can be modified to the present invention or equivalent substitution；And all do not depart from this hair
The technical scheme of bright spirit and scope and its improvement, it all should cover in scope of the presently claimed invention.
Claims (2)
1. a kind of SCM Based RFFE host device interfaces transplantation device, exist comprising I O layer, driving layer and application layer, its feature
In：The I O layer includes clock signal unit, register, interrupt vector unit, timer and communication interface, the driving layer bag
Containing communication interface, RFFE protocol analysis unit, RFFE communication units, the application layer includes data transceiving unit and signal designation
Control unit；
Wherein, clock signal unit, for carrying out the frequency dividing of clock frequency according to the requirement of communication frequency；
Register, for instructing, data and address it is temporary；
Interrupt vector unit, for the first ground for forming the entry address of corresponding interrupt service routine, depositing interrupt service routine
Location；
Timer；Record for the time；
Communication interface, for being connected with host computer and other communication apparatus；
RFFE protocol analysis units, for being packaged to RFFE agreements；
RFFE communication units, for the reception and transmission to RFFE protocol datas；
Data transceiving unit, reception and transmission for RFFE protocol datas；
Signal designation control unit, for reading or writing data to RFFE slave units；
The communication interface includes at least one of USB, UART, IIC, SPI, CAN, the model of register
74HC595DR2G.The timer uses 555 timers, and the clock signal unit uses YZ-9820 clock units.
2. the method for the transplanting based on a kind of SCM Based RFFE host device interfaces transplantation device described in claim 1,
It is characterized in that：Specifically comprise the following steps：
Step 1, RFFE communication frequencies as needed, calculate and internal dominant frequency is divided and then draws RFFE communications
Clock；
Step 2, according to MIPI RFFE agreements, universal input/output interface, software for editing are driven by way of software simulation
To realize the communication identification code of bottom, and open rational api interface calls for software application layer；
Step 3, interface general exploitation USB, UART, IIC, SPI, CAN, external equipment can be controlled by these general-purpose interfaces
RFFE interfaces processed, according to the command calls RFFE interface functions of parsing.
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| CN106294905B (en) * | 2015-06-01 | 2021-07-06 | 鸿富锦精密电子(郑州)有限公司 | Printed circuit board wiring system and method |
| CN106941484A (en) * | 2017-01-23 | 2017-07-11 | 斑马信息科技有限公司 | The multi-chip communication protocol system and its method of internet automobile |
| CN108933841A (en) * | 2017-05-27 | 2018-12-04 | 嘉兴鹏武电子科技有限公司 | A kind of control method and device of radio-frequency front-end equipment |
| CN111338761B (en) * | 2020-02-28 | 2023-10-03 | 深圳航天科技创新研究院 | 51 single-chip microcomputer virtual interrupt controller and implementation method |
| CN114244909B (en) * | 2021-12-16 | 2023-05-02 | 深圳飞骧科技股份有限公司 | Protocol conversion circuit and related device |
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