CN109152163A - The control method and device of breath light in a kind of non real-time system - Google Patents
The control method and device of breath light in a kind of non real-time system Download PDFInfo
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- CN109152163A CN109152163A CN201810672758.8A CN201810672758A CN109152163A CN 109152163 A CN109152163 A CN 109152163A CN 201810672758 A CN201810672758 A CN 201810672758A CN 109152163 A CN109152163 A CN 109152163A
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- breath light
- spi
- control
- non real
- impulse waveform
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Technical solution of the present invention includes a kind of control method of breath light in non real-time system, the timing parameter for including the following steps: S10, configuring SPI control module；S20, SPI impulse waveform is generated using color code according to time parameter and timing requirements；S30, it is worked according to SPI pulse shape control breath light.The invention has the benefit that using Software Coding SPI impulse waveform, it is worked by SPI control module hardware transport pulse control breath light, the case where capable of largely avoiding pure software control from being influenced by factors such as system load, multitask, breathing timing, it is few to occupy chip pin for spi bus simultaneously, the pin of chip is saved, space is saved for PCB layout, reduces cost, and easy to use.
Description
Technical field
The present invention relates to a kind of control method and device of breath light in non real-time system, belong to control technology field.
Background technique
Breath light refers to that light completes gradually changing from bright to dark under the control of micro computer, feels to seem that people exists
Breathing.It is widely used on mobile phone, and becomes one of the attraction of each famous brand Mobile phone, plays a reminder announced
Effect.
In the prior art, breath light control technology usually has two classes, first is that by independent control chip controls, second is that using
The control of software analogue technique；And software analogue technique generallys use two ways: it goes to control by GPIO analog pulse sequence, or
Person is to go to control by adjusting PWM duty cycle.
In such a way that independent control chip goes control, the timing for controlling breath light accurately can may be used by hardware guarantee
It leans on, but increases the cost of equipment；And software analogue technique in non real-time system by system load, multitask, breathing etc.
The factors such as timing requirements influence, and when system load height, device bus is in busy condition, and breath light identifies the pulsewidth of low and high level
In the case that difference is minimum, it is generally difficult to reach ideal control effect.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of control method of breath light in non real-time system and
Color code is encoded to binary code in advance by the way of SPI simulation by device, and binary code is recycled to generate SPI impulse wave
Shape is sent to breath light through spi bus by SPI control module, to guarantee that timing meets breathing in every frame SPI impulse waveform
Lamp work requirements can reach preferable control effect by way of soft or hard combination.
Technical solution used by the present invention solves the problems, such as it is:
The control method of breath light, includes the following steps: in a kind of non real-time system
S10, the timing parameter for configuring SPI control module；
S20, SPI impulse waveform is generated using color code according to time parameter and timing requirements；
S30, it is worked according to SPI pulse shape control breath light.
Further, in the step S10, the timing parameter includes clock polarity, phase and frequency.
Further, the step S20 includes:
S21, the color code for obtaining color to be shown；
S22, color code is converted into corresponding binary code sequence；
S23, for utilizing the binary code sequence raw according to the timing requirements of clock frequency and breath light low and high level
At SPI impulse waveform.
Further, the step S30 includes:
SPI impulse waveform is resolved to counterlogic level value according to the pulsewidth of impulse waveform by S31, breath light control circuit
0 or 1；
S32, breath light illuminating circuit control corresponding breath light luminescence display according to logic level values.
The control device of breath light in a kind of non real-time system, comprising:
Clock configuration module, for configuring the timing parameter of SPI control module；
SPI control module, for generating SPI impulse waveform using color code according to time parameter and timing requirements；
Lamp module is breathed, for working according to SPI pulse shape control breath light.
Further, the time parameter in the time configuration module includes clock polarity, phase and frequency.
Further, the SPI control module, including
Color cell, for obtaining the color code of color to be shown；
Coding unit, for color code to be converted to corresponding binary code sequence；
SPI control unit, for utilizing the binary system according to the timing requirements of clock frequency and breath light low and high level
Code sequence generates SPI impulse waveform.
Further, the breathing lamp module includes:
Breath light control circuit unit, for SPI impulse waveform to be resolved to counterlogic according to the pulsewidth of impulse waveform
Level value 0 or 1；
Breath light illuminating circuit unit, for controlling corresponding breath light luminescence display according to the logic level values.
The beneficial effects of the present invention are: in a kind of non real-time system that the present invention uses breath light control method and dress
It sets, using Software Coding SPI impulse waveform, is worked by SPI control module hardware transport pulse control breath light, it can be larger
The case where degree avoids pure software control from being influenced by factors such as system load, multitask, breathing timing, while spi bus occupies
Chip pin is few, has saved the pin of chip, saves space for PCB layout, reduces cost, and easy to use.
Detailed description of the invention
Fig. 1 is the control method flow chart of breath light in a kind of non real-time system of the embodiment of the present invention one；
Fig. 2 is the control method flow chart of breath light in a kind of non real-time system of the embodiment of the present invention two；
Fig. 3 is the control method flow chart of breath light in a kind of non real-time system of the embodiment of the present invention three；
Fig. 4 is a frame SPI impulse waveform schematic diagram of the invention；
Fig. 5 is the controling device structure diagram of breath light in a kind of non real-time system of the embodiment of the present invention four；
Fig. 6 is the controling device structure diagram of breath light in a kind of non real-time system of the embodiment of the present invention five；
Fig. 7 is the controling device structure diagram of breath light in a kind of non real-time system of the embodiment of the present invention six.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.
Embodiment one
Referring to Fig.1, in the present embodiment, the control method of breath light in a kind of non real-time system of the invention, including it is as follows
Step:
S10, the timing parameter for configuring SPI control module 20；
S20, SPI impulse waveform is generated using color code according to time parameter and timing requirements；
S30, it is worked according to SPI pulse shape control breath light.Wherein, the timing parameter includes clock polarity, phase
And frequency.
Embodiment two
Referring to Fig. 2, in the present embodiment, the step S20 includes:
S21, the color code for obtaining color to be shown；
S22, color code is converted into corresponding binary code sequence；
S23, SPI is generated using the binary code sequence according to the timing requirements of clock frequency and breath light low and high level
Impulse waveform.
Embodiment three
Referring to Fig. 3, in the present embodiment, the step S30 includes:
SPI impulse waveform is resolved to counterlogic level value according to the pulsewidth of impulse waveform by S31, breath light control circuit
0 or 1；
S32, breath light illuminating circuit control corresponding breath light luminescence display according to logic level values.
Specifically, each lamp source of breath light of the invention may be regarded as a pixel, the three primary colours face of each pixel
256 grades of brightness changes may be implemented in color, and lamp source passes through the pulsewidth recognition logic level value of input pulse waveform, when input pulse
When high level lasting time about 200ns, the low level duration about 1ms, breath light is identified as logical zero；When the height of input pulse
When level duration about 1ms, the low level duration about 200ns, breath light is identified as logic 1.
SPI clock frequency is higher, more accurate to the control of breath light, and each binary code is corresponding in impulse waveform
SPI clock periodicity is equal to the product of clock frequency level duration corresponding with the binary code in timing requirements.This reality
It applies in example, the pulse data for receiving 24bit every time with breath light is a frame, and breath light control circuit is resolved to red blue green three
Kind color code, driving illuminating circuit shine.Assuming that user's setpoint color code is 0x0000FF, SPI control module 20 generates such as Fig. 4
Shown frame pulse waveform, wherein preceding 16bit data high level lasting time is about 200ns, can be known by breath light control circuit
Not Wei 0x00,0x00, rear 8bit high level lasting time is about 1ms, 0xFF can be identified as by breath light control circuit, to drive
Dynamic breath light illuminating circuit shows corresponding color.
Example IV
Referring to Fig. 5, in the present embodiment, the control device of breath light in a kind of non real-time system, comprising:
Clock configuration module 10, for configuring the timing parameter of SPI control module 20；
SPI control module 20, for generating SPI impulse waveform using color code according to time parameter and timing requirements；
Lamp module 30 is breathed, for working according to SPI pulse shape control breath light.
Wherein, the time parameter in the time configuration module 10 includes clock polarity, phase and frequency.
Specifically, connecing breathing lamp module 30 on the MOSI pin of SPI control module 20, SPI control module is initialized
20 and configurable clock generator parameter, logical zero and logic 1 are separately encoded into SPI according to the color code of user setting by SPI control module 20
Impulse waveform simultaneously be transmitted to breathing lamp module 30, breathing lamp module 30 impulse waveform parse and control corresponding breath light brightness with
Color change.
Embodiment five
Referring to Fig. 6, in the present embodiment, the SPI control module 20, including
Color cell 21, for obtaining the color code of color to be shown；
Coding unit 22, for color code to be converted to corresponding binary code sequence；
SPI control unit 23, for according to the timing requirements of clock frequency and breath light low and high level using described two into
Code sequence processed generates SPI impulse waveform.
Embodiment six
Referring to Fig. 7, in the present embodiment, the breathing lamp module 30 includes:
SPI impulse waveform is resolved to correspondence for the pulsewidth according to impulse waveform and patrolled by breath light control circuit unit 31
Collect level；
Breath light illuminating circuit unit 32, for controlling corresponding breath light luminescence display according to the logic level.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
The above, only presently preferred embodiments of the present invention, the invention is not limited to above embodiment, as long as
It reaches technical effect of the invention with identical means, all should belong to protection scope of the present invention.In protection model of the invention
Its technical solution and/or embodiment can have a variety of different modifications and variations in enclosing.
Claims (8)
1. the control method of breath light in a kind of non real-time system, which comprises the steps of:
S10, the timing parameter for configuring SPI control module；
S20, SPI impulse waveform is generated using color code according to time parameter and timing requirements；
S30, it is worked according to SPI pulse shape control breath light.
2. the control method of breath light in non real-time system according to claim 1, it is characterised in that: the step S10
In, the timing parameter includes clock polarity, phase and frequency.
3. the control method of breath light in non real-time system according to claim 2, it is characterised in that: the step S20
Include:
S21, the color code for obtaining color to be shown；
S22, color code is converted into corresponding binary code sequence；
S23, SPI pulse is generated using the binary code sequence according to the timing requirements of clock frequency and breath light low and high level
Waveform.
4. the control method of breath light in non real-time system according to claim 3, it is characterised in that: the step S30
Include:
S31, breath light control circuit according to the pulsewidth of impulse waveform by SPI impulse waveform resolve to counterlogic level value 0 or
1；
S32, breath light illuminating circuit control corresponding breath light luminescence display according to logic level values.
5. the control device of breath light in a kind of non real-time system, it is characterised in that: including
Clock configuration module (10), for configuring the timing parameter of SPI control module (20)；
SPI control module (20), for generating SPI impulse waveform using color code according to time parameter and timing requirements；
It breathes lamp module (30), for being worked according to SPI pulse shape control breath light.
6. the control device of breath light in non real-time system according to claim 5, it is characterised in that: the time configuration
Time parameter in module (10) includes clock polarity, phase and frequency.
7. the control device of breath light in non real-time system according to claim 6, it is characterised in that: the SPI control
Module (20), including
Color cell (21), for obtaining the color code of color to be shown；
Coding unit (22), for color code to be converted to corresponding binary code sequence；
SPI control unit (23), for utilizing the binary system according to the timing requirements of clock frequency and breath light low and high level
Code sequence generates SPI impulse waveform.
8. the control device of breath light in non real-time system according to claim 7, it is characterised in that: the breath light mould
Block (30), comprising:
Breath light control circuit unit (31), for SPI impulse waveform to be resolved to counterlogic according to the pulsewidth of impulse waveform
Level value 0 or 1；
Breath light illuminating circuit unit (32), for controlling corresponding breath light luminescence display according to the logic level values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672758.8A CN109152163B (en) | 2018-06-26 | 2018-06-26 | Control method and device for breathing lamp in non-real-time system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810672758.8A CN109152163B (en) | 2018-06-26 | 2018-06-26 | Control method and device for breathing lamp in non-real-time system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109152163A true CN109152163A (en) | 2019-01-04 |
| CN109152163B CN109152163B (en) | 2020-06-02 |
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ID=64802237
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810672758.8A Active CN109152163B (en) | 2018-06-26 | 2018-06-26 | Control method and device for breathing lamp in non-real-time system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070211014A1 (en) * | 2006-03-10 | 2007-09-13 | Hyoung-Rae Kim | Methods and Circuits for Synchronous Operation of Display Backlighting |
| WO2010068126A1 (en) * | 2008-12-12 | 2010-06-17 | Rafal Pietrak | A method of encoding and decoding of synchronous serial transmission, particularly for low power devices and fiber optics media |
| CN102968963A (en) * | 2012-11-30 | 2013-03-13 | 深圳市华星光电技术有限公司 | LED (light-emitting diode) backlight driving circuit, liquid crystal display and driving method |
| CN105629741A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Intelligent household electrical appliance control system |
| CN107123372A (en) * | 2017-04-19 | 2017-09-01 | 东莞博力威电池有限公司 | The LED lamp panel of battery management system shows system and method |
| CN107633811A (en) * | 2017-10-30 | 2018-01-26 | 王才旺 | A kind of SCM Based OLED static state displays drive device |
-
2018
- 2018-06-26 CN CN201810672758.8A patent/CN109152163B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070211014A1 (en) * | 2006-03-10 | 2007-09-13 | Hyoung-Rae Kim | Methods and Circuits for Synchronous Operation of Display Backlighting |
| WO2010068126A1 (en) * | 2008-12-12 | 2010-06-17 | Rafal Pietrak | A method of encoding and decoding of synchronous serial transmission, particularly for low power devices and fiber optics media |
| CN102968963A (en) * | 2012-11-30 | 2013-03-13 | 深圳市华星光电技术有限公司 | LED (light-emitting diode) backlight driving circuit, liquid crystal display and driving method |
| CN105629741A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Intelligent household electrical appliance control system |
| CN107123372A (en) * | 2017-04-19 | 2017-09-01 | 东莞博力威电池有限公司 | The LED lamp panel of battery management system shows system and method |
| CN107633811A (en) * | 2017-10-30 | 2018-01-26 | 王才旺 | A kind of SCM Based OLED static state displays drive device |
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| CN109152163B (en) | 2020-06-02 |
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