CN102685283B - A kind of device module identification method, device and a kind of mobile terminal - Google Patents
A kind of device module identification method, device and a kind of mobile terminal Download PDFInfo
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Abstract
The present invention is applicable to information identification field, provides a kind of device module identification method, device and a kind of mobile terminal, and described device module identification method comprises: the voltage being gathered the detection pin of described device module by a GPIO mouth of processor; According to the mapping relations of manufacturer's information and the described magnitude of voltage collected, identify the manufacturer's information of described device module.Technical solution of the present invention, by increasing at the detection pin of device module the divider resistance that is pulled upward to working power end, by the magnitude of voltage of acquisition testing pin, can identify the manufacturer's information of current device module according to this magnitude of voltage.In embodiments of the present invention, by the device module of a GPIO mouth and the multiple manufacturer of identifiable design, mobile device manufacturers is made can to take the device module of multiple manufacturer, restriction of not supplying.
Description
Technical field
The invention belongs to information identification field, particularly relate to a kind of device module identification method, device and a kind of mobile terminal.
Background technology
Mobile terminal is formed by multiple device module group assembling, corresponding function can be realized again by corresponding drive control software, described device module is the functional module realizing each application function of mobile terminal, such as, camera module comprises camera and peripheral control circuits, can realize taking pictures and camera function by drive software, screen module comprises screen and display control circuit, can realize showing various image by drive software.Mobile terminal device manufacturer generally for and reduces purchase cost and supply cost, multiple manufacturer for subsequent use is often selected for same device module, but the module of the same device module of different vendor drives usually all different, so need to configure corresponding drive software on executive software.
In prior art, in order to the module identifying different device modules and then configuration correspondence drives, by mobile terminal processor GPIO(GeneralPurposeInputOutput, universal input/output) mouth is connected to the detection pin of device module, described detection pin can set firmly as high or low level, such processor reads the level state of this detection pin by this GPIO mouth, the manufacturer's information of current device module can be told, but the device module of Liang Ge manufacturer can only be distinguished like this by setting firmly low and high level, when needing to identify more multi-vendor device module, need to arrange multiple detection pin, and need multiple GPIO mouth to be attached thereto, according to the manufacturer identifying different level combinations and represent different, but the valuable GPIO mouth resource compared like this on waste mobile terminal processor.
Summary of the invention
Embodiments provide a kind of device module identification method, in order to solve the problem of the multiple GPIO mouths needing to make purpose processor in existing mobile terminal in order to the manufacturer's information identifying device module.
Described device module identification method is applied to mobile terminal, described mobile terminal is built-in with processor, a universal input/output GPIO the mouth of described processor is connected to the detection pin of device module, be connected with divider resistance between described detection pin and working power end, described method comprises the steps:
The voltage of the detection pin of described device module is gathered by a GPIO mouth of described processor;
According to the mapping relations of manufacturer's information and the described magnitude of voltage collected, identify the manufacturer's information of described device module.
The embodiment of the present invention additionally provides a kind of recognition device of device module, and described device comprises:
Voltage acquisition unit, for the voltage of the detection pin of a GPIO mouth sampler module by processor;
Vendor identification unit, for the mapping relations according to manufacturer's information and the described magnitude of voltage collected, identifies the manufacturer's information of described device module.
The embodiment of the present invention additionally provides a kind of mobile terminal, described mobile terminal is built-in with processor, a GPIO mouth of described processor is connected to the detection pin of device module, be connected with divider resistance between described detection pin and working power end, described mobile terminal also comprises the recognition device of above-mentioned device module.
In embodiments of the present invention, a GPIO mouth of processor is connected to the detection pin of device module, this pin is connected to working power end by a divider resistance, described working power, divider resistance, the built-in resistor of device module forms a series loop with ground, because the resistance of the built-in resistor of the device module of different vendor is different, thus detection pin gets voltage also different, voltage acquisition unit gathers described voltage by GPIO mouth, the manufacturer that vendor identification unit is corresponding different according to the voltage of different range, the manufacturer's information of current device module can be identified, and then the driving of corresponding module can be configured.Technical solution of the present invention, by after increase divider resistance, only needs a GPIO mouth can distinguish the device module of multiple manufacturer, has saved the GPIO resource of processor preciousness.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the device module identification method that first embodiment of the invention provides;
Fig. 2 is the process flow diagram of the device module identification method that second embodiment of the invention provides;
Fig. 3 is the block diagram of the device module recognition device that third embodiment of the invention provides;
Fig. 4 is the block diagram of the device module recognition device that fourth embodiment of the invention provides;
Fig. 5 is the structural drawing of the mobile terminal that fifth embodiment of the invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
embodiment one:
Fig. 1 shows the flow process of the device module identification method that first embodiment of the invention provides, and illustrate only the part relevant to the embodiment of the present invention for convenience of explanation.
Device module identification method described in the embodiment of the present invention is applied to mobile terminal, described mobile terminal is built-in with processor, a universal input/output GPIO the mouth of described processor is connected to the detection pin of device module, be connected with divider resistance between described detection pin and working power end, described method comprises the steps:
Step S101, gathered the voltage of the detection pin of described device module by a GPIO mouth of described processor.
In this step, a GPIO mouth of processor is connected to the detection pin of device module, the magnitude of voltage of this detection pin can be collected, suppose that the resistance being connected to the divider resistance detected between pin and working power VDD is R1, the resistance of the built-in resistor of the device module of current installation is R0, consider that the GPIO mouth of described processor is high-impedance state when being set to input pattern, working power VDD, divider resistance R1, built-in resistor R0 define a series loop with ground, and the voltage being easy to obtain detection pin is
when specific implementation, described GPIO mouth can be configured the ADC module (analog-to-digital conversion module) be connected in processor, ADC module realizes the voltage of acquisition testing pin, because the built-in resistor R0 of the same device module of different vendor is not quite similar, the magnitude of voltage that ADC module is collected by described GPIO mouth is not identical yet, therefore processor just can according to the manufacturer's information of magnitude of voltage recognition means module, wherein, the precision of ADC module is higher, just can distinguish more manufacturer's information, if be 8 than the precision of ADC module, the corresponding manufacturer's information of magnitude of voltage after each AD conversion, the device module of 256 kinds of different vendors can be identified in theory.
Step S102, mapping relations according to manufacturer's information and the described magnitude of voltage collected, identify the manufacturer's information of described device module.
In this step, the mapping relations of magnitude of voltage and manufacturer's information are preset in the start-up routine of mobile terminal, different magnitudes of voltage represents different manufacturers, and this mapping relations calculate according to the built-in resistor information of searching device module or use test to obtain by actual.Further, even consider that the built-in resistor R1 of same manufacturer same device module also may exist nuance, in addition, also ripple may be there is in working power VDD, therefore, described mapping relations are manufacturer's information corresponding to the magnitude of voltage of the magnitude of voltage of certain limit and this scope, the magnitude of voltage collected is sent in process, described processor is when executive routine, voltage range residing for this magnitude of voltage and mapping relations, can identify the manufacturer's information of current device module.
In embodiments of the present invention, the built-in processor with mobile terminal collects the detection pin voltage of device module by GPIO mouth, for different device modules, the pin voltage collected is different, the manufacturer's information of current device module can be judged by the mapping relations of pin voltage and manufacturer's information, the device module identification method that the present embodiment provides is simply effective, can identify multiple device module.
embodiment two:
Fig. 2 shows the flow process of the device module identification method that second embodiment of the invention provides, and illustrate only the part relevant to the embodiment of the present invention for convenience of explanation.
Device module identification method described in the same embodiment of the present invention is applied to mobile terminal, described mobile terminal is built-in with processor, a universal input/output GPIO the mouth of described processor is connected to the detection pin of device module, be connected with divider resistance between described detection pin and working power end, described method comprises the steps:
Step S201, gathered the voltage of the detection pin of described device module by a GPIO mouth of described processor.
Step S202, mapping relations according to manufacturer's information and the described magnitude of voltage collected, identify the manufacturer's information of described device module.
Step S201-S202 is identical with step S101-S102 in embodiment one, repeats no more herein.
Step S203, the module corresponding according to the manufacturer's information configuration identified drive.
In embodiments of the present invention, processor is when performing start-up routine, obtain the magnitude of voltage collected, again according to the mapping relations of preset magnitude of voltage and manufacturer's information, the manufacturer's information of current device module can be obtained, processor performs corresponding module driver according to manufacturer's information, so just can use this device module.
embodiment three:
Fig. 3 shows the block diagram of a kind of device module recognition device that third embodiment of the invention provides, and described device comprises:
Voltage acquisition unit 301, for the voltage of the detection pin of a GPIO mouth sampler module by processor;
Vendor identification unit 302, for the mapping relations according to manufacturer's information and the described magnitude of voltage collected, identifies the manufacturer's information of described device module.
In embodiments of the present invention, a GPIO mouth of processor is connected to the detection pin of device module, divider resistance is connected with between described detection pin and working power end, the voltage of the detection pin of voltage acquisition unit sampler module, because the resistance of the built-in resistor of different manufacturers is different, the magnitude of voltage detecting pin is also different, vendor identification unit is by preset mapping relations, according to the magnitude of voltage that voltage acquisition unit collects, the manufacturer's information of described device module can be identified.
embodiment four:
Fig. 4 shows the block diagram of a kind of device module recognition device that fourth embodiment of the invention provides, and described device comprises:
Voltage acquisition unit 401, for the voltage of the detection pin of a GPIO mouth sampler module by processor;
Vendor identification unit 402, for the mapping relations according to manufacturer's information and the described magnitude of voltage collected, identifies the manufacturer's information of described device module;
Drive arrangements unit 403, drives for the module corresponding according to the manufacturer's information configuration identified.
The present embodiment and embodiment three unlike, device module recognition device described in the present embodiment also comprises drive arrangements unit, the module that the device module of different producers is corresponding drives possibility different, in this step, drive arrangements unit drives to the module that the configuration of device module is corresponding according to the manufacturer's information identified.
embodiment five:
Fig. 5 shows the structure of a kind of mobile terminal that fifth embodiment of the invention provides, and illustrate only the part relevant to the embodiment of the present invention for convenience of explanation.
Described mobile terminal is built-in with processor 501, a GPIO mouth of described processor 501 is connected to the detection pin 503 of device module 502, divider resistance R1 is connected with between described detection pin 503 and working power end VDD, described mobile terminal also comprises voltage acquisition unit 504, for the voltage of the detection pin of a GPIO mouth sampler module by processor; Vendor identification unit 505, for the mapping relations according to manufacturer's information and the described magnitude of voltage collected, identifies the manufacturer's information of described device module.
Further, as preferred embodiment, described mobile terminal also comprises drive arrangements unit 506, drives for the module corresponding according to the manufacturer's information configuration identified.。
In the present embodiment, device module is provided with detection pin, voltage acquisition unit is connected to described detection pin by a GPIO mouth of processor, the built-in resistor (namely detecting the resistance between pin and ground) supposing described device module is R0, in the present embodiment, GPIO mouth is as the input end gathering voltage, port is set to input pattern, for high-impedance state, as shown in Figure 1, working power VDD, divider resistance R1, built-in resistor R0 with ground define a series loop, detection pin voltage, namely the voltage of described GPIO mouth is
because the built-in resistor R0 of the same device module of different vendor is not quite similar, the magnitude of voltage that voltage acquisition unit is collected by described GPIO mouth is not identical yet, therefore vendor identification unit just according to the manufacturer's information of magnitude of voltage recognition means module, thus can drive further by the corresponding module of drive arrangements cell location.Voltage acquisition unit described in the present embodiment, vendor identification unit and drive arrangements unit can be placed in that processor is inner or processor is outside, realize corresponding function by calling corresponding program.
Concrete, voltage acquisition unit can be realized by the ADC module in processor, wherein, the precision of ADC module is higher, just can distinguish more manufacturer's information, if be 8 than the precision of ADC module, the corresponding manufacturer's information of the magnitude of voltage after each AD conversion, can identify the device module of 256 kinds of different vendors in theory.When specific implementation, even also may nuance be there is in the built-in resistor R1 of same manufacturer same device module, in addition, also ripple may be there is in working power VDD, therefore, as long as the magnitude of voltage that ADC module acquires arrives is within certain scope, vendor identification unit all can assert the affiliated manufacturer's information of current device module, and drive arrangements unit just configurable corresponding module drives.
From technique scheme, the embodiment of the present invention is by increasing at the detection pin of device module the divider resistance that is moved to working power, different device modules is due to its built-in resistor difference, the magnitude of voltage of so described detection pin is also different, voltage acquisition unit gathers described voltage by GPIO mouth, the manufacturer's information that different range of voltage values is corresponding different, therefore, vendor identification unit can identify the manufacturer's information of current device module accordingly, and then can be driven by the module that drive arrangements cell location is corresponding.In embodiments of the present invention, by the device module of a GPIO mouth and the multiple manufacturer of identifiable design, mobile device manufacturers is made can to take the device module of multiple manufacturer, restriction of not supplying.
One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a device module identification method, described method is applied to mobile terminal, described mobile terminal is built-in with processor, it is characterized in that, a universal input/output GPIO the mouth of described processor is connected to the detection pin of device module, described GPIO mouth configures the analog-to-digital conversion module be connected in processor, and described method comprises the steps:
Gathered the voltage of the detection pin of described device module by a GPIO mouth of described processor, described voltage is
described R0 is the resistance of the built-in resistor of described device module, and described R1 is the resistance of the divider resistance between described detection pin and working power, and described VDD is the output voltage values of described working power;
According to the mapping relations of manufacturer's information and the described magnitude of voltage collected, identify the manufacturer's information of described device module.
2. the method for claim 1, is characterized in that, the described mapping relations according to manufacturer's information and the described magnitude of voltage collected, after identifying the manufacturer's information step of described device module, also comprise the steps:
The module corresponding according to the manufacturer's information configuration identified drives.
3. method as claimed in claim 1 or 2, it is characterized in that, described mapping relations are, the manufacturer's information that the magnitude of voltage of each scope is corresponding with this range of voltages value, according to the voltage range residing for the magnitude of voltage collected, the manufacturer's information of current device module can be identified.
4. a recognition device for device module, is characterized in that, described device comprises:
Voltage acquisition unit, for the voltage of the detection pin of a universal input/output GPIO mouth sampler module by processor, a GPIO mouth of described processor is connected to the detection pin of device module, described GPIO mouth configures the analog-to-digital conversion module be connected in processor, and described voltage is
described R0 is the resistance of the built-in resistor of described device module, and described R1 is the resistance of the divider resistance between described detection pin and working power, and described VDD is the output voltage values of described working power;
Vendor identification unit, for the mapping relations according to manufacturer's information and the described magnitude of voltage collected, identifies the manufacturer's information of described device module.
5. the recognition device of a kind of device module as claimed in claim 4, it is characterized in that, described processor also comprises:
Drive arrangements unit, drives for the module corresponding according to the manufacturer's information configuration identified.
6. the recognition device of a kind of device module as described in claim 4 or 5, it is characterized in that, described mapping relations are, the manufacturer's information that the magnitude of voltage of each scope is corresponding with this range of voltages value, according to the voltage range residing for the magnitude of voltage collected, the manufacturer's information of current device module can be identified.
7. a mobile terminal, described mobile terminal is built-in with processor, it is characterized in that, a universal input/output GPIO the mouth of described processor is connected to the detection pin of device module, described GPIO mouth configures the analog-to-digital conversion module be connected in processor, and described mobile terminal also comprises the recognition device of the device module as described in any one of claim 4-6.
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