CN101841590B - Terminal equipment software and hardware self-adaptive matching method and terminal equipment using same - Google Patents

Terminal equipment software and hardware self-adaptive matching method and terminal equipment using same Download PDF

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CN101841590B
CN101841590B CN200910047624.8A CN200910047624A CN101841590B CN 101841590 B CN101841590 B CN 101841590B CN 200910047624 A CN200910047624 A CN 200910047624A CN 101841590 B CN101841590 B CN 101841590B
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CN101841590A (en
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黄忠
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Leadcore Technology Co Ltd
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Abstract

The invention discloses a terminal equipment software and hardware self-adaptive matching method, which comprises: providing an analog voltage-hardware version lookup list; providing a micro controller which can read the analog voltage-hardware version lookup list; providing a analog to digital converter; providing an analogue voltage division circuit, connecting one end of the analog to digital converter to the voltage division circuit and collecting a voltage division value; and transmitting the voltage division value collected by the analog to digital converter to the micro controller, wherein the micro controller reads the analog voltage-hardware version lookup list according to the obtained voltage division value, searches for a hardware version corresponding to the voltage division value and starts the software of a version corresponding to the hardware version. The method also provides terminal equipment using the method.

Description

The terminal equipment of terminal equipment software and hardware self-adaptive matching method and use the method
Technical field
The present invention relates to the method that a kind of terminal device software, hardware version automatically adapt to and mate, and relate to a kind of terminal equipment that utilizes the method.
Background technology
Mobile phone institute's role in the modern life is more and more important, except realizing the most basic mobile voice conversation, also integrated increasing commercial affairs, amusement function, by mobile phone, people can carry out schedule, communication, commercial affairs prompting, amusement and recreation etc. easily.The kind of mobile phone is also very various, and each manufacturer has released the mobile phone of multiple suitable different user crowd's different model miscellaneous.In fact, the mobile phone of a lot of different models is usually derivative by same product prototype machine, so-called prototype, refer to for new model or newly-designed mobile phone Full Featured device structurally, by this design performance of installing design performance and the compatibility between the parts of each parts of check and checking complete machine, prototype has the most basic function, but also is the most basic function.
The mobile phone hardware that a kind of typical situation is different model is produced by the schematic diagram with a prototype in fact, just the BOM (BOM, Bills ofMaterial claim again the structure inventory) of corresponding different hardware.Because the change of BOM or peripheral circuit, software often needs edition changes to adapt to this change, the normally a BOM of existing situation, i.e. hardware version, corresponding software version, this causes same product prototype machine to derive numerous different hardware versions and software version, and the normal operation of between the two must be one by one corresponding guarantee system.The present same software version of mobile phone of realizing is in the industry supported the function of a plurality of hardware versions, its principle is to utilize the MCU (microcontroller that carries in the mobile phone, Micro ControllingUnit) GPIO (universal input and output, General Purpose Input/Output) pin, each GPIO pin configuration is become high level or low level, the different hardware version of combination representative of the high-low level state of recycling GPIO pin, retrieve after the hardware version, restart the software corresponding with this hardware version, comprise driver or plate support package (BSP, Board Support Package), so that software support operating system corresponding to hardware enables better to run on the hardware mainboard.
Please refer to the drawing 1, the GPIO pin that utilizes MCU that Fig. 1 is shown is realized the theory diagram of software and hardware coupling.Be summarized as follows: utilize three pins of MCU, GPIO1, GPIO2, GPIO3 are connected to respectively digital bleeder circuit (the dotted line frame is interior among the figure), and digital bleeder circuit accesses resistance R 1～R6 between operating voltage (VDD) and earth point.GPIO1～3 are configured to high or low state by pull-up resistor R1, R3, R5 or pull down resistor R2, R4, R6 with the level of GPIO1～3 respectively, and the combination of high-low level has multiple, every kind of corresponding a kind of hardware version then, and its corresponding relation can be joined table 1.
The existing retrieval table of comparisons that makes up corresponding hardware version by the GPIO level of table 1
Figure G2009100476248D00021
Annotate:
Figure G2009100476248D00022
--place in circuit zero--place in circuit H--high level L--low level
Therefore, the two states of three pins of corresponding MCU can correspondence 2 3=8 kinds of hardware versions, this utilizes level to make up flow chart please refer to the drawing 2 of the method for corresponding hardware version, and flow process is as follows:
1. "Behind the system boot, MCU at first is configured to input function with GPIO1～3;
2. "Read the level state on GPIO1～3;
3. "Obtain corresponding hardware version information by searching GPIO level state and the hardware version retrieval table of comparisons;
4. "Start corresponding driver or BSP, system program just can work afterwards.
The hardware version number that existing method can be supported is fixing and limited, can not increase underaction after hardware is produced again.If increase supported hardware version number, will increase the GPIO resource, the increase that take MCU and use resistance, and increase and take the PCB area, and in miniaturization day by day but in the mobile phone products that function becomes increasingly abundant, GPIO resource, PCB area all are more rare resources, therefore, existing method can not satisfy the situation that hardware version increases.
The present invention then provides a kind of new mode in order to improve or to solve the above problems.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of new method that is used for terminal device software and hardware version Adaptive matching, improves the development efficiency of product, reduces exploitation, test, production and maintenance cost.
The present invention solves above-mentioned technical problem by such technical scheme:
A kind of terminal equipment software and hardware self-adaptive matching method, this terminal equipment have the hardware of particular version and the software of a plurality of versions, and the method comprises the steps: to provide aanalogvoltage-hardware version table of comparisons; Microcontroller is provided, and this microcontroller can read above-mentioned aanalogvoltage-hardware version table of comparisons; Analog to digital converter is provided, and this analog to digital converter one end is connected to above-mentioned microcontroller; The analog voltage-dividing circuit is provided, and this analog voltage-dividing circuit comprises the first resistance, second resistance of series connection; Operating voltage is provided, and above-mentioned the first resistance is connected in operating voltage, and the second resistance one end is connected in the first resistance, and other end ground connection is connected in the end that the second resistance and the first resistance join with the other end of analog to digital converter, in order to gather the partial pressure value of the second resistance; The partial pressure value that analog to digital converter collects is passed to microcontroller, and microcontroller reads above-mentioned aanalogvoltage-hardware version table of comparisons according to the partial pressure value that obtains, and retrieves hardware version corresponding to partial pressure value, the software of the version that rear startup hardware version is corresponding.
As a kind of improvement of the present invention, the first resistance is the set of a plurality of resistance serial or parallel connections.
As a kind of improvement of the present invention, the second resistance is the set of a plurality of resistance serial or parallel connections.
As a kind of improvement of the present invention, this operating voltage is provided by the voltage regulator in the terminal equipment.
As a kind of improvement of the present invention, terminal equipment has power management chip, and analog to digital converter is this power management chip and carries.
As a kind of improvement of the present invention, terminal equipment has baseband chip, and analog to digital converter is this baseband chip and carries.
The present invention provides a kind of terminal equipment in addition, this terminal equipment has operating voltage, the hardware of particular version, the software of a plurality of versions, the aanalogvoltage of the internal memory-hardware version table of comparisons, can read the microcontroller of above-mentioned aanalogvoltage-hardware version table of comparisons, one end is connected to the analog to digital converter of microcontroller, and the analog voltage-dividing circuit that is connected to analog to digital converter, the analog voltage-dividing circuit comprises the first resistance of series connection, the second resistance, above-mentioned the first resistance is connected in operating voltage, the second resistance one end is connected in the first resistance, other end ground connection, the other end of analog to digital converter is connected in the end that the second resistance and the first resistance join, in order to gather and to transmit to microcontroller the partial pressure value of the second resistance.
As a kind of improvement of the present invention, terminal equipment is provided with voltage regulator, and this operating voltage is provided by above-mentioned voltage regulator.
As a kind of improvement of the present invention, terminal equipment has power management chip, and analog to digital converter is this power management chip and carries.
As a kind of improvement of the present invention, terminal equipment has baseband chip, and analog to digital converter is this baseband chip and carries.
Compared with prior art, the present invention has the following advantages: the hardware version number that can support is many and unfixing, by changing the voltage ratio of divider resistance, can add flexibly follow-up hardware version.Adopt the different hardware version of aanalogvoltage difference because be, precision according to ADC, quantity can reach tens even hundreds of, so supported hardware version number will be much larger than the existing method of utilizing GPIO to realize, the device of using, circuit and resistance quantity are fixed, and take that the PCB area is fixed and few, save cost.
Description of drawings
Fig. 1 is the theory diagram of existing mobile phone software and hardware matching process related to the present invention.
Fig. 2 is the flow chart of existing mobile phone software and hardware matching process related to the present invention.
Fig. 3 is the theory diagram of terminal equipment software and hardware self-adaptive matching method of the present invention.
Fig. 4 is the flow chart of terminal equipment software and hardware self-adaptive matching method of the present invention.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
Set forth technical scheme of the present invention as an example of mobile phone example.Mobile phone products all is to design and develop according to the chipset that each solution supplier provides, and chipset all includes ADC (analogue-to-digital converters at the beginning of design, Analog-to-Digital Converter), ADC generally is present in power management chip, Analog Baseband chip or the baseband chip of mobile phone, and can access a plurality of passages by multiplex switch, therefore frequent available free ADC passage is idle.
The present invention utilizes these idle ADC passages to realize technical scheme of the present invention and solve the technical problem that exists in this background technology just.
Two divider resistances that utilize ADC and add, the different different hardware version information of magnitude of voltage representative with simulation, again by with the Adaptive matching that realizes cell phone software and different hardware version cooperating of software, accomplish software to the forward compatibility of hardware, namely new software both can support new hardware version also can support old hardware version.
The theory diagram of terminal equipment software and hardware self-adaptive matching method of the present invention as shown in Figure 3, its core forms the analog voltage-dividing circuit (the interior part of dotted line frame among the figure) that comprises MCU, ADC and be made of the first resistance R 1, the 2nd R2, and Vref is as the reference voltage of bleeder circuit.The needs supporting with block diagram shown in Figure 3 have aanalogvoltage-hardware version table of comparisons, and the magnitude of voltage of ordering according to a among Fig. 3 can retrieve corresponding hardware version numbers from aanalogvoltage-hardware version table of comparisons.The main effect of ADC is two, the first, and the sampling a magnitude of voltage of order, the second, quantification namely, comes approaching simulation voltage with the binary number of finite length.In fact, Vref also can directly utilize the operating voltage of MCU, perhaps directly utilizes the operating voltage of mobile phone.
Therefore, the hardware version number that can identify of this method depends on quantified precision, the first resistance R 1 and the precision of the second resistance R 2 and the precision of Vref of ADC.Vref can adopt the voltage reference of cell phone system inside, and the precision of voltage reference is generally about 0.1%.
The position of supposing ADC is long for the x bit; Resistance precision is y%; Represent a point voltage (that is, the partial pressure value of the second resistance R 2) with Va; With Va ErrorRepresent a point voltage error.
Then:
Va = R 2 R 1 + R 2 Vref ; - - - ( 1 )
Va max = R 2 max R 1 min + R 2 max Vref max = ( 1 + y % ) R 2 ( 1 - y % ) R 1 + ( 1 + y % ) R 2 1.001 Vref ;
Va min = R 2 min R 1 max + R 2 min Vref min = ( 1 - y % ) R 2 ( 1 + y % ) R 1 + ( 1 - y % ) R 2 0.999 Vref ;
A point voltage error is:
Va error＝Va max-Va min； (2)
The quantization error of x bit A/D C is
1 2 x Vref ; - - - ( 3 )
If
V a error < 1 2 x Vref - - - ( 4 )
Then can pass through the accurate decision circuitry version of ADC sampled voltage.
According to formula (4), if adopt resistance, the 8 bit A/D C of 0.1% precision, then any resistance value all can satisfy Va error < 1 2 x Vref , Be that maximum can support 2 8=256 grades.
If adopt the E96 series Chip-R of 5% precision, then need to select suitable resistance to satisfy formula (4), suppose ADC resolution 16 bits, precision 12 bits; Voltage reference Vref is 1.2V, 0.1% precision; According to formula (4) and Fig. 3, can select suitable resistance to build corresponding circuits, to distinguish 10 hardware versions, its voltage-hardware version table of comparisons is as shown in table 2.
The table 2 aanalogvoltage-hardware version table of comparisons
Figure G2009100476248D00062
Adopt the software flow of this method as shown in Figure 4:
1. "Software at first starts ADC behind system boot;
2. "Read the analog voltage that a is ordered by ADC;
3. "Obtain corresponding hardware version by pre-set aanalogvoltage and the hardware version table of comparisons;
4. "Start corresponding driver or BSP, system program just can work afterwards.
Therefore, in short, aanalogvoltage sampling and reading circuit that the present invention namely utilizes MCU in the chip for cell phone group (generally being ARM), the ADC that carries and divider resistance to consist of.In fact, any series connection or parallel combination by two or more resistance replaces the method for R1 or R2 all to belong to analog voltage-dividing circuit of the present invention.Such as R1=10K, the R2=100K in Fig. 3, replace R1 with the parallel connection of two 20K resistance, with the alternative R2 of series connection of the resistance of two 50K.
The present invention provides a kind of mobile phone of realizing mobile phone software and hardware self-adaptive coupling in addition, this mobile phone comprises microcontroller (MCU), analog to digital converter (ADC) and the bleeder circuit of being connected with the 2nd R2 by the first resistance R 1, the first resistance R 1 is connected to operating voltage, the second resistance R 2 ground connection, digital to analog converter is connected between the first resistance R 1 and the second resistance R 2 in order to gather the aanalogvoltage of the second resistance R 2, and this digital to analog converter is connected to MCU and converts this aanalogvoltage to binary representation.In fact, R1 can be a plurality of resistance serial or parallel connections, and R2 also can be a plurality of resistance serial or parallel connections.
Utilize technical scheme provided by the invention, the hardware version number that can support is many and unfixing, by changing the voltage ratio of divider resistance, can add flexibly follow-up hardware version.Adopt the different hardware version of aanalogvoltage difference because be, precision according to ADC, quantity can reach tens even hundreds of, so supported hardware version number will be much larger than the existing method of utilizing GPIO to realize, the device of using, circuit and resistance quantity are fixed, and take that the PCB area is fixed and few, save cost.
More than be to set forth technical scheme of the present invention as an example of mobile phone example, in fact, method provided by the invention also is applicable to other terminal equipments that need to start according to hardware version corresponding software, also is to utilize microcontroller, analog to digital converter and analog voltage-dividing circuit to realize same effect.For not specific terminal equipment, if it has voltage regulator, above-mentioned operating voltage is then provided by voltage regulator.
The above only is better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned execution mode; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection range of putting down in writing in claims.

Claims (10)

1. terminal equipment software and hardware self-adaptive matching method, this terminal equipment has the hardware of particular version and the software of a plurality of versions, it is characterized in that, and the method comprises the steps:
Aanalogvoltage-hardware version table of comparisons is provided;
Microcontroller is provided, and this microcontroller can read above-mentioned aanalogvoltage-hardware version table of comparisons;
Analog to digital converter is provided, and this analog to digital converter one end is connected to above-mentioned microcontroller;
The analog voltage-dividing circuit is provided, and this analog voltage-dividing circuit comprises the first resistance, second resistance of series connection;
Operating voltage is provided, and above-mentioned the first resistance is connected in operating voltage, and the second resistance one end is connected in the first resistance, and other end ground connection is connected in the end that the second resistance and the first resistance join with the other end of analog to digital converter, in order to gather the partial pressure value of the second resistance;
The partial pressure value that analog to digital converter collects is passed to microcontroller, and microcontroller reads above-mentioned aanalogvoltage-hardware version table of comparisons according to the partial pressure value that obtains, and after retrieving hardware version corresponding to partial pressure value, starts the software of version corresponding to hardware version.
2. terminal equipment software and hardware self-adaptive matching method according to claim 1 is characterized in that, the first resistance is the set of a plurality of resistance serial or parallel connections.
3. terminal equipment software and hardware self-adaptive matching method according to claim 1 and 2 is characterized in that, the second resistance is the set of a plurality of resistance serial or parallel connections.
4. terminal equipment software and hardware self-adaptive matching method according to claim 1 is characterized in that, this operating voltage is provided by the voltage regulator in the terminal equipment.
5. terminal equipment software and hardware self-adaptive matching method according to claim 1 is characterized in that, terminal equipment has power management chip, and analog to digital converter is this power management chip and carries.
6. terminal equipment software and hardware self-adaptive matching method according to claim 1 is characterized in that, terminal equipment has baseband chip, and analog to digital converter is this baseband chip and carries.
7. one kind is used the as claimed in claim 1 terminal equipment of terminal equipment software and hardware self-adaptive matching method, it is characterized in that: this terminal equipment has operating voltage, the hardware of particular version, the software of a plurality of versions, the aanalogvoltage of the internal memory-hardware version table of comparisons, can read the microcontroller of above-mentioned aanalogvoltage-hardware version table of comparisons, one end is connected to the analog to digital converter of microcontroller, and the analog voltage-dividing circuit that is connected to analog to digital converter, the analog voltage-dividing circuit comprises the first resistance of series connection, the second resistance, above-mentioned the first resistance is connected in operating voltage, the second resistance one end is connected in the first resistance, other end ground connection, the other end of analog to digital converter is connected in the end that the second resistance and the first resistance join, in order to gather and to transmit to microcontroller the partial pressure value of the second resistance.
8. terminal equipment according to claim 7 is characterized in that, terminal equipment is provided with voltage regulator, and this operating voltage is provided by above-mentioned voltage regulator.
9. terminal equipment according to claim 7 is characterized in that, terminal equipment has power management chip, and analog to digital converter is this power management chip and carries.
10. terminal equipment according to claim 7 is characterized in that, terminal equipment has baseband chip, and analog to digital converter is this baseband chip and carries.
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