CN103139331B - Mobile phone photographing circuit and mobile terminal with the same - Google Patents
Mobile phone photographing circuit and mobile terminal with the same Download PDFInfo
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- CN103139331B CN103139331B CN201110396347.9A CN201110396347A CN103139331B CN 103139331 B CN103139331 B CN 103139331B CN 201110396347 A CN201110396347 A CN 201110396347A CN 103139331 B CN103139331 B CN 103139331B
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Abstract
The invention belongs to the technical field of mobile phone base band circuit design, and particularly relates to a mobile phone photographing circuit and a mobile terminal with the mobile phone photographing circuit. The mobile terminal with the mobile phone photographing circuit comprises a mobile phone base band chip, a light-emitting diode (LED) module and a camera module supporting a parallel bus interface. The chip selection end of the mobile phone base band chip is connected with the LED module and the camera module, and the bus interface of the mobile base band chip is connected with the bus interface of the LED module and the parallel bus interface of the camera module. The bus of the mobile base band chip is multiplexed, the bus interface carried by the mobile phone base band chip is adopted to read the pixel data of the camera module, frequently-used 12C signals and here general purpose input/output (GPIO) ports are adopted to control a camera, and the mobile phone base band chip is enabled to achieve a mobile phone photographing function through the bus interface of the mobile phone base band chip.
Description
Technical field
The invention belongs to mobile phone baseband technical field of circuit design, specifically relate to a kind of mobile phone photograph circuit and there is the mobile terminal of circuit of taking pictures.
Background technology
Along with the development of mobile communication technology, the baseband processing chip of mobile phone is also towards small size, high integration, low-power consumption, high performance future development.The high-performance of mobile phone is embodied in the abundant of function, and such as mobile phone photograph is exactly a good Function Extension.
On current mobile phone market, support the cell phone platform of camera function, all with DVP interface or the MIPI interface of hardware, and have some mobile phone base band chips without DVP interface and MIPI interface.
DVP interface is the camera connecting interface of industry one agreement, it comprise camera power supply, reset signal RESET, dormant control signal PWDN, line synchronizing signal HSYNC, row synchronizing signal VSYNC, camera master clock signal CAM_MCLK, camera pixel clock signal CAM_PCLK, I2C control signal, 8 pixel data signal transmission Y1, Y2, Y 3, Y4, Y5, Y6, Y7, Y8.
MIPI interface is the emergence along with nearly 2 years intelligent mobile phone platforms, the data transfer mode of a kind of high-speed differential serial that industry adopts.The holding wire negligible amounts adopted.MIPI interface comprise power supply, sleep signal PWDN, master clock signal CAM_MCLK, I2C control signal, differential clock signal CLK_P, CLK_N, differential data signals MIPI_CS_N, MIPI_CS_P.
Therefore, the present invention carries out circuit design for the mobile phone base band chip not with DVP interface, makes it can support to take pictures.
Summary of the invention
The embodiment of the present invention is to provide a kind of mobile phone photograph circuit, makes the mobile phone base band chip originally not supporting camera function, makes it can support to take pictures by circuit design.
To achieve these goals, the embodiment of the present invention is by the following technical solutions:
A kind of mobile phone photograph circuit, comprises the camera module of mobile phone base band chip and support parallel bus interface;
The bus interface of mobile phone base band chip is corresponding with the parallel bus interface of camera module to be connected;
The register selection signal end of mobile phone base band chip is connected with the Input Address signal end of camera module, and what be used for selection transmission is data or register address;
The output enable signal end of mobile phone base band chip is connected with the enable signal end of reading of camera module, is used for enable read data;
The write enable signal end of mobile phone base band chip is connected with the write enable signal end of camera module, is used for enable write data.
Further, described mobile phone base band chip is QSC1100 chip, and a GPIO port of QSC1100 chip is connected on the reset signal end of camera module, is used for doing hardware reset to camera module; 2nd GPIO port of described QSC1100 chip is connected on the dormant control signal end of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port of described QSC1100 chip is connected with the interrupt signal end of camera module, is used for responding the interruption of camera module; 4th GPIO port of described QSC1100 chip is used for Simulation with I 2C signal together with the 5th GPIO port combination, and it is connected with clock signal terminal with the serial data signal end of camera module respectively.
Further, the sinusoidal wave simulated clock simulation clock signal that described QSC1100 chip provides, changes regular one-tenth square wave dagital clock signal by two gates, is supplied to camera module.
Further, described QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, and wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module.
The embodiment of the present invention also provides a kind of mobile terminal with circuit of taking pictures, and makes the mobile phone base band chip originally not supporting camera function, makes it can support to take pictures by circuit design.
To achieve these goals, the embodiment of the present invention is by the following technical solutions:
A kind of mobile terminal, comprises the camera module of mobile phone base band chip, LCD module, support parallel bus interface; The sheet choosing end of mobile phone base band chip connects LCD module and camera module, and the bus interface of mobile phone base band chip connects the bus interface of LCD module and the parallel bus interface of camera module simultaneously.
Further, described mobile phone base band chip is QSC1100 chip, and its first choosing end is connected with LCD module, is used for controlling LCD display, and second choosing end is connected with camera module, is used for controlling camera.
Further, the register selection signal end of described QSC1100 chip is connected with the Input Address signal end of LCD module and camera module respectively;
The output enable signal end of QSC1100 chip is connected with the enable signal end of reading of LCD module and camera module respectively;
The write enable signal end of QSC1100 chip is connected with the write enable signal end of LCD module and camera module respectively.
Further, a GPIO port of described QSC1100 chip is connected on the reset signal end of camera module, is used for doing hardware reset to camera module; 2nd GPIO port of described QSC1100 chip is connected on the dormant control signal end of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port of described QSC1100 chip is connected with the interrupt signal end of camera module, is used for responding the interruption of camera module; 4th GPIO port of described QSC1100 chip is used for Simulation with I 2C signal together with the 5th GPIO port combination, and it is connected with clock signal terminal with the serial data signal end of camera module respectively.
Further, the sinusoidal wave simulated clock simulation clock signal that described QSC1100 chip provides, changes regular one-tenth square wave dagital clock signal by two gates, is supplied to camera module.
Further, described QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, and wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module; The data connecting line of the LCD bus interface of QSC1100 chip and the parallel bus interface of camera module is in series with electromagnetic interface filter.
Compared with prior art, above-described embodiment tool provided by the invention has the following advantages:
By the LCD bus-sharing of QSC1100 chip, connect LCD module and camera module by it simultaneously, carry out sheet selected control LCD display with LCD_CS0_N, carry out sheet selected control camera with LCD_CS1_N.The LCD bus interface of 8 bit wides adopting QSC1100 chip itself to carry is to read the pixel data of camera module, conventional I2C signal and 3 GPIO ports are adopted to control camera, the simulated clock simulation clock signal that QSC1100 chip exports is adjusted to dagital clock signal, and provides it to the use of camera module.Make QSC1100 chip realize photographing function of mobile phone by its LCD bus interface, LCD bus is also multiplexed with control and the display of LCD screen simultaneously.
Accompanying drawing explanation
Fig. 1 is mobile phone photograph circuit hardware connection layout.
Fig. 2 is mobile terminal signal wiring figure.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail:
Embodiment 1
Composition graphs 1, a kind of mobile phone photograph circuit, comprises the camera module of QSC1100 chip and support parallel bus interface; QSC1100 chip comprises: 8 LCD data/address bus: LCD_D [0], LCD_D [1], LCD_D [2], LCD_D [3], LCD_D [4], LCD_D [5], LCD_D [6], LCD_D [7],
LCD write enable signal---LCD_WE_N,
LCD output enable signal---LCD_OE_N,
Two LCD chip selection signal LCD_CS0_N and LCD_CS1_N,
LCD enable signal LCD_EN,
LCD register selection signal LCD_RS.
Camera module selects the transducer supporting parallel signal bus, the such as GC0111 of GALAXYCORE company.
Concrete annexation is:
The LCD bus interface of QSC1100 chip is corresponding with the parallel bus interface of camera module to be connected; The LCD register selection signal end LCD_RS of QSC1100 chip is connected with the ADDR signal end of camera module, and what be used for selection transmission is data or register address; The LCD output enable signal end LCD_OE_N of QSC1100 chip is connected with the RD signal end of camera module, is used for enable read data; The LCD write enable signal end LCD_WE_N of QSC1100 chip is connected with the WR signal end of camera module, is used for enable write data.
One GPIO port GPIO36 of QSC1100 chip is connected on the RST signal of camera module, is used for doing hardware reset to camera module; 2nd GPIO port GPIO38 of described QSC1100 chip is connected on the PWDN signal of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port GPIO32 of described QSC1100 chip is connected with the INT signal of camera module, is used for responding the interruption of camera module.4th GPIO port GPIO26 and the 5th GPIO port GPIO30 of described QSC1100 chip combine for Simulation with I 2C signal, and it is connected with SDA with the SCL signal end of camera module respectively.
QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, and wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module.
GC0111 chip needs to provide digital square wave clock signal, and QSC1100 chip can not provide digital square wave clock signal, can only be provided the simulated clock simulation clock signal of sinus wave patters by XO_OUT_GP1 pin.It is regular that this programme adopts two gates to carry out waveform transformation to the simulated clock simulation clock signal that XO_OUT_GP1 exports, and makes it become digital square wave clock signal, as the master clock of camera module.
The LCD bus interface of 8 bit wides adopting QSC1100 chip itself to carry is to read the pixel data of camera module, conventional I2C signal and 3 GPIO ports are adopted to control camera, the simulated clock simulation clock signal that QSC1100 chip exports is adjusted to dagital clock signal, and provide it to the use of camera module, make QSC1100 chip realize photographing function of mobile phone by its LCD bus interface.
Embodiment 2
Composition graphs 2, a kind of mobile terminal, comprises the camera module of QSC1100 chip, LCD module, support parallel bus interface; The sheet choosing end of QSC1100 chip connects LCD module and camera module, and the LCD bus interface of QSC1100 chip connects the bus interface of LCD module and the parallel bus interface of camera module simultaneously.
QSC1100 chip comprises: 8 LCD data/address bus: LCD_D [0], LCD_D [1], LCD_D [2], LCD_D [3], LCD_D [4], LCD_D [5], LCD_D [6], LCD_D [7],
LCD write enable signal---LCD_WE_N,
LCD output enable signal---LCD_OE_N,
Two LCD chip selection signal LCD_CS0_N and LCD_CS1_N,
LCD enable signal LCD_EN,
LCD register selection signal LCD_RS.
Camera module selects the transducer supporting parallel signal bus, the such as GC0111 of GALAXYCORE company.
By the LCD bus-sharing of QSC1100 chip, connect LCD display and camera module by it simultaneously, the data connecting line of the LCD bus interface of QSC1100 chip and the parallel bus interface of camera module is in series with electromagnetic interface filter.First choosing end LCD_CS0_N and the LCD module of QSC1100 chip connects, and is used for controlling LCD display; Second choosing end LCD_CS1_N of QSC1100 chip is connected with camera module, is used for controlling camera.
The LCD register selection signal end LCD_RS of QSC1100 chip is connected with the ADDR signal end of LCD module and camera module respectively; The LCD output enable signal end LCD_OE_N of QSC1100 chip is connected with the RD signal end of LCD module and camera module respectively; The LCD write enable signal end LCD_WE_N of QSC1100 chip is connected with the WR signal end of LCD module and camera module respectively.
One GPIO port GPIO36 of QSC1100 chip is connected on the RST signal of camera module, is used for doing hardware reset to camera module; 2nd GPIO port GPIO38 of described QSC1100 chip is connected on the PWDN signal of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port GPIO32 of described QSC1100 chip is connected with the INT signal of camera module, is used for responding the interruption of camera module.4th GPIO port GPIO26 and the 5th GPIO port GPIO30 of described QSC1100 chip combine for Simulation with I 2C signal, and it is connected with SDA with the SCL signal end of camera module respectively.
QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, and wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module.
GC0111 chip needs to provide digital square wave clock signal, and QSC1100 chip can not provide digital square wave clock signal, can only be provided the simulated clock simulation clock signal of sinus wave patters by XO_OUT_GP1 pin.It is regular that this programme adopts two gates to carry out waveform transformation to the simulated clock simulation clock signal that XO_OUT_GP1 exports, and makes it become digital square wave clock signal, as the master clock of camera module.
By the LCD bus-sharing of QSC1100 chip, connect LCD module and camera module by it simultaneously, carry out sheet selected control LCD display with LCD_CS0_N, carry out sheet selected control camera with LCD_CS1_N.The LCD bus interface of 8 bit wides adopting QSC1100 chip itself to carry is to read the pixel data of camera module, conventional I2C signal and 3 GPIO ports are adopted to control camera, the simulated clock simulation clock signal that QSC1100 chip exports is adjusted to dagital clock signal, and provides it to the use of camera module.Make QSC1100 chip realize photographing function of mobile phone by its LCD bus interface, LCD bus is also multiplexed with control and the display of LCD screen simultaneously.
Certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned citing, the change that those skilled in the art make in the essential scope of the embodiment of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (7)
1. a mobile phone photograph circuit, is characterized in that: the camera module comprising mobile phone base band chip and support parallel bus interface;
The bus interface of mobile phone base band chip is corresponding with the parallel bus interface of camera module to be connected;
The register selection signal end of mobile phone base band chip is connected with the Input Address signal end of camera module, and what be used for selection transmission is data or register address;
The output enable signal end of mobile phone base band chip is connected with the enable signal end of reading of camera module, is used for enable read data;
The write enable signal end of mobile phone base band chip is connected with the write enable signal end of camera module, is used for enable write data;
Described mobile phone base band chip is QSC1100 chip, and a GPIO port of QSC1100 chip is connected on the reset signal end of camera module, is used for doing hardware reset to camera module; 2nd GPIO port of described QSC1100 chip is connected on the dormant control signal end of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port of described QSC1100 chip is connected with the interrupt signal end of camera module, is used for responding the interruption of camera module; 4th GPIO port of described QSC1100 chip is used for Simulation with I 2C signal together with the 5th GPIO port combination, and it is connected with clock signal terminal with the serial data signal end of camera module respectively.
2. mobile phone photograph circuit according to claim 1, is characterized in that: the sinusoidal wave simulated clock simulation clock signal that described QSC1100 chip provides, and changes regular one-tenth square wave dagital clock signal, be supplied to camera module by two gates.
3. mobile phone photograph circuit according to claim 1 and 2, it is characterized in that: described QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module.
4. a mobile terminal, is characterized in that: the camera module comprising mobile phone base band chip, LCD module, support parallel bus interface; The sheet choosing end of mobile phone base band chip connects LCD module and camera module, and the bus interface of mobile phone base band chip connects the bus interface of LCD module and the parallel bus interface of camera module simultaneously;
Described mobile phone base band chip is QSC1100 chip, and its first choosing end is connected with LCD module, is used for controlling LCD display, and second choosing end is connected with camera module, is used for controlling camera;
One GPIO port of described QSC1100 chip is connected on the reset signal end of camera module, is used for doing hardware reset to camera module; 2nd GPIO port of described QSC1100 chip is connected on the dormant control signal end of camera module, is used for controlling the low-power consumption mode of camera module; 3rd GPIO port of described QSC1100 chip is connected with the interrupt signal end of camera module, is used for responding the interruption of camera module; 4th GPIO port of described QSC1100 chip is used for Simulation with I 2C signal together with the 5th GPIO port combination, and it is connected with clock signal terminal with the serial data signal end of camera module respectively.
5. mobile terminal according to claim 4, is characterized in that: the register selection signal end of described QSC1100 chip is connected with the Input Address signal end of LCD module and camera module respectively;
The output enable signal end of QSC1100 chip is connected with the enable signal end of reading of LCD module and camera module respectively;
The write enable signal end of QSC1100 chip is connected with the write enable signal end of LCD module and camera module respectively.
6. the mobile terminal according to claim 4 or 5, is characterized in that: the sinusoidal wave simulated clock simulation clock signal that described QSC1100 chip provides, and changes regular one-tenth square wave dagital clock signal, be supplied to camera module by two gates.
7. the mobile terminal according to claim 4 or 5, it is characterized in that: described QSC1100 chip provides 2.8V and 1.8V two-way power supply to camera module, wherein 2.8V is to the supplying digital circuits of camera module, and 1.8V powers to the interface circuit of camera module; The data connecting line of the LCD bus interface of QSC1100 chip and the parallel bus interface of camera module is in series with electromagnetic interface filter.
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| CN201110396347.9A CN103139331B (en) | 2011-12-02 | 2011-12-02 | Mobile phone photographing circuit and mobile terminal with the same |
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| CN201110396347.9A CN103139331B (en) | 2011-12-02 | 2011-12-02 | Mobile phone photographing circuit and mobile terminal with the same |
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| CN103139331B true CN103139331B (en) | 2015-05-27 |
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| CN103916498B (en) * | 2014-03-28 | 2017-02-15 | 宁波萨瑞通讯有限公司 | Serial port camera and parallel port camera compatible method |
| ES2938471T3 (en) | 2018-04-28 | 2023-04-11 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Data processing method, electronic device and computer-readable storage medium |
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| US20060072031A1 (en) * | 2004-10-01 | 2006-04-06 | Curitel Communications, Inc. | Mobile communication terminal equipped with digital image capturing module and method of capturing digital image |
| CN101202880A (en) * | 2007-06-08 | 2008-06-18 | 深圳市德诺通讯技术有限公司 | Mobile terminal with camera shooting function |
| CN101674401B (en) * | 2009-09-17 | 2012-06-20 | 华为终端有限公司 | Method, terminal and camera module for transmitting image data |
| CN102164207A (en) * | 2011-03-09 | 2011-08-24 | 青岛海信移动通信技术股份有限公司 | Image acquisition method and device |
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