Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberCN101252659 B
Publication typeGrant
Application numberCN 200710013736
Publication date4 Aug 2010
Filing date25 Feb 2007
Priority date25 Feb 2007
Also published asCN101252659A
Publication number200710013736.2, CN 101252659 B, CN 101252659B, CN 200710013736, CN-B-101252659, CN101252659 B, CN101252659B, CN200710013736, CN200710013736.2
Inventors邢胜春, 郑华磊
Applicant青岛海信电器股份有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Circuit and method for managing standby and complete machine powering of television set
CN 101252659 B
Abstract
The invention discloses a management method for the stand-by and the complete machine electrification of a television. The method adopts the following components: a main processor which is electrified to work after the television is turned on and an auxiliary MCU chip for maintaining the electrification work during the stand-by of the television, wherein, after receiving the turn-on command signal, the auxiliary MCU chip outputs a control signal and controls the complete machine electrification work of the television, and controls the turn-on display of the display screen after a period of time delay. The delay time is equal to the running time of the built-in initialization program of the main processor. The invention simultaneously discloses a management circuit for the stand-by and thecomplete machine electrification of a television, through the full use of the auxiliary MCU chip charged for receiving the turn-on command in the prior television circuit, the auxiliary MCU is simultaneously used as the electrification time sequence control unit of the display screen, thereby, phenomena of screen flash and image abnormality due to the uncontrollability of the display screen during the electrification initialization of the main processor, therefore, the image output quality is effectively improved.
Claims(11)  translated from Chinese
  1. 一种电视机的待机和整机上电管理方法,其特征在于:当电视待机时保持上电工作的副MCU芯片接收到开机指令信号时,一方面输出控制信号至主处理器,以控制电视机中除显示屏以外的其它电路上电工作;另一方面在延迟一定时间后控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 A television and on the standby machine power management method, wherein: the sub MCU chip when TV is in standby power-work holding power command signal is received, on the one hand to the main processor outputs a control signal to control the TV machine circuit electrical work besides other display; on the other hand, after a certain time delay control display boot display, the running time of the delay time with the main processor's internal initialization procedure quite.
  2. 2. 根据权利要求1所述的电视机的待机和整机上电管理方法,其特征在于:所述延迟时间预先存储设定在副MCU芯片中。 2. TV standby power management method and the machine according to claim 1, wherein: said delay time is previously stored in the sub-set MCU chip.
  3. 3. 根据权利要求1所述的电视机的待机和整机上电管理方法,其特征在于:所述延迟时间通过接收主处理器在初始化程序运行结束后输出的控制信号的方式来确定。 The TV standby power management method and the machine according to claim 1, wherein: said delay time is determined by way of a control signal received at the end of the main processor to run the initialization program output.
  4. 4. 根据权利要求l所述的电视机的待机和整机上电管理方法,其特征在于:所述副MCU 芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 4. The TV standby power management method and the machine according to claim l, wherein: the sub MCU chip receives a remote control signal or all of the key signal, which is parsed into a corresponding digital signal transmission instruction to the main processor.
  5. 5. 根据权利要求l-4任一所述的电视机的待机和整机上电管理方法,其特征在于:所述副MCU芯片接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的开机或者关机时间时,输出指令信号,控制电视机整机上电工作或者进入待机状态。 The TV and the standby machine power management l-4 according to any one of the preceding claims, characterized in that: the real time clock signal received sub MCU chip clock chip output, and arrives at the current time set by the user When the boot or shutdown time, the output command signals to control the electrical work machine or TV into standby mode.
  6. 6. —种电视机的待机和整机上电管理电路,包括电视开机后上电工作的主处理器和电视待机时保持上电工作的副MCU芯片,其特征在于:所述副MCU芯片的输入端接收遥控或者按键信号,通过其中一路输出端连接电视机显示屏的开关控制端,在所述副MCU芯片接收到开机指令后,在延迟一定时间后通过其所述的输出端输出指令信号,控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 6. - Keep seed TV on standby and the whole power management circuits, including electrical work boot after TV host processor and TV standby power sub MCU chip work, characterized in that: the sub MCU chip After receiving the input of the remote control or the key signal, by the way in which the switch control terminal connected to the output of the TV screen, in the sub-MCU chip boot command is received after a certain time delay through its output end of the output command signal The control screen boot display, the delay time with the main processor internal initialization procedures running time considerably.
  7. 7. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU 芯片的ADC端口和中断信号输入端口分别与电视机按键板的模拟按键信号输出端和红外遥控接收头模块的输出端对应连接,对输入的按键信号进行模数转换后,或者对接收到的遥控信号进行解码后,生成相应的数字指令信号,通过副MCU芯片的UART接口传送给所述的主处理器。 7. Depending on the TV and on the whole standby power management circuit according to claim 6, wherein: said sub MCU chip ADC interrupt signal port and the input port, respectively, of the analog television keypad key signal output terminal and infrared remote control receiver module connected to the output of the correspondence of the key input signal post-analog-digital conversion, or the remote control to decode the received signal, the corresponding digital command signals generated by the sub MCU chip UART interface to transmit The main processor.
  8. 8. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述显示屏为液晶屏,副MCU芯片的P丽信号输出端连接所述液晶屏的背光亮度调节端口;所述显示屏的开关控制端为液晶屏背光板的使能端,连接所述副MCU芯片的开关信号输出端。 8. Claim your TV on standby and the whole power management circuitry 6, characterized in that: the display is an LCD screen, sub MCU chip P Lai signal output of the LCD backlight brightness adjusting port; switch control terminal of the display screen for the LCD backlight panel enable terminal, an output terminal connected to said switching signal sub MCU chip.
  9. 9. 根据权利要求8所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU 芯片的开关信号输出端通过由两个三极管组成的两级信号放大反向电路连接所述液晶屏背光板的使能端。 According to the TV and on the whole standby power management circuit according to claim 8, wherein: said switching signal output by the sub MCU chip consists of two two-stage signal amplifying triode reverse circuit connection The LCD backlight enable terminal.
  10. 10. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU芯片的I2C总线端通过I2C总线分别与主处理器和实时时钟芯片的总线端对应连接,所述实时时钟芯片的备份电源端连接电池,在电视机待机时为实时时钟芯片提供工作电源;所述实时时钟芯片的主电源端连接电视机电源板的低压直流电源输出端,在电视机上电后为实时时钟芯片提供工作电源;所述实时时钟芯片的中断信号输出端连接副MCU芯片,在到达用户的设定时间时,向副MCU芯片输出中断信号,通过所述副MCU芯片实现定时开关机控制。 10. According to the TV on standby and the whole power management circuitry of claim 6, wherein: the sub-MCU chip I2C bus through I2C bus terminals and bus terminals corresponding main processor and real-time clock chip connection, the real-time clock chip to connect the battery backup power supply terminal, to provide work in TV standby power real-time clock chip; the real-time clock chip main power low-voltage DC power supply terminal connected TV power output of the board, in television After the machine power supplies power for the real-time clock chip; the real-time clock chip interrupt signal output of the sub MCU chip, when the user reaches the set time, the deputy MCU chip interrupt signal output by the sub MCU chip timer switch control.
  11. 11. 根据权利要求6所述的电视机的待机和整机上电管理电路,其特征在于:所述副MCU芯片与电视机的升级接口相连接,接收外部程序存储设备中的升级程序,以更新其内部的软件程序。 11. According to the TV stand, and power management circuitry on the machine according to claim 6, wherein: said sub MCU chip upgrade the TV connected to the interface, receiving an external program storage device upgrade program to update its internal software program.
Description  translated from Chinese

电视机的待机和整机上电管理方法及电路 TV on standby and the whole power management and circuit

技术领域 FIELD

[0001] 本发明属于电视机技术领域,涉及一种电视机的待机和整机上电管理方法及电路。 [0001] The present invention belongs to the technical field of the TV, the TV stand, and relates to a power management method and the whole circuit.

背景技术 BACKGROUND

[0002] 随着技术的不断发展,很多电视机的功能越来越复杂,导致电视机系统越来越庞大。 [0002] With the continuous development of technology, a lot of TV's more complex functions, resulting in increasingly large TV system. 现在的电视机由几年前的4位机、8位机演变成了现在的S0C嵌入式系统。 Now the TV a few years ago by four machines, eight machine S0C now evolved into embedded systems. 目前的嵌入式系统大多是运行Li皿x操作系统,所以要让这么大型的系统待机低功耗非常困难,因此, 有人提出了在主处理器之外增加一个功率较小的副MCU芯片,负责在电视机待机时对遥控 Most embedded systems are currently running OS x Li dish, so let such a large system of low standby power consumption is very difficult, therefore, it was suggested that the increase in power to the main processor of a smaller secondary MCU chip, responsible When the remote control at the TV stand

开机信号和按键开机信号的接收,进而实现对整机电源的管理。 Turn signals and the power button to turn the signal received, so as to realize the management of the whole power supply. 采用这种主、副处理器的电 Such use of electric main and auxiliary processors

路设计方式,使主处理器在待机时可以完全断电停机,整机电源仅需提供副MCU芯片的供 Road design approach, the main processor in standby power outage shut down completely, the whole power only provides for sub MCU chip

电电压即可,从而显著降低了电视机的待机功耗,达到了节能降耗的目的。 Voltage can be, thus significantly reducing the standby power consumption of the TV, to the energy-saving purposes.

[0003] 对于目前采用主、副处理器电路设计方式的电视机来说,虽然解决了待机低功耗 [0003] For the current main and auxiliary processor circuit design approach of television, although a low-power standby resolved

的问题,但是仍然存在两方面的不足:其一、显示屏的开关仍受主处理器的控制,主处理器 The problem, but there are still less than two aspects: First, switch the display still control the main processor, the main processor

的嵌入式系统在启动过程中,通常有两级B00T,在B00T1时,主处理器对外围还没有初始 Embedded system during startup, there are usually two-B00T, when B00T1, the main processor to the initial peripheral yet

化,此时对显示屏来说是不可控的,上电时带来的屏闪、图像异常等现象是不可控和无法消 Technology, this time on the display is not controllable, when the power to bring the screen flash, image abnormal phenomenon is not controllable and can not be eliminated

除的;其二、副MCU芯片仅负责在电视机待机时对遥控开机信号和开机按键信号进行接收, In addition; Second Vice MCU chip is only responsible for the TV standby power button remote start signal and the signal is received,

其余功能按键和遥控键仍由主处理器接收处理,这样,副MCU芯片在电视机上电工作后就 The rest of the function keys and the remote control key still the main processor to receive treatment, so that the sub MCU chip power on the TV after work

处于闲置状态,浪费资源和电能。 Idle, wasting resources and energy.

发明内容 SUMMARY

[0004] 本发明的发明目的在于提供一种电视机的待机和整机上电管理方法,以解决现有 [0004] The invention object of the present invention is to provide a television set on standby and machine power management method, to solve the existing

电视机在开机时,显示屏容易出现屏闪和图像异常的问题。 TV in the boot, the display is easy to screen flash and image abnormal problems.

[0005] 为解决上述技术问题,本发明采用以下技术方案予以实现: [0005] In order to solve the above technical problem, the present invention employs the following technical solutions to be realized:

[0006] —种电视机的待机和整机上电管理方法,当电视待机时保持上电工作的副MCU芯片接收到开机指令信号时,一方面输出控制信号至主处理器,以控制电视机中除显示屏以外的其它电路上电工作;另一方面在延迟一定时间后控制显示屏开机显示,所述延迟时间与主处理器内部初始化程序的运行时间相当。 [0006] - When seed TV on standby and the whole power management, the power to keep working when TV is in standby Vice MCU chip boot command signal is received, while the output control signal to the main processor to control the TV other electrical work on the circuit except the screen; on the other hand, after a certain time delay control display boot display, the running time of the delay time with the main processor's internal initialization procedure quite.

[0007] 所述延迟时间预先存储设定在副MCU芯片中,或者通过接收主处理器在初始化程序运行结束后输出的控制信号的方式来确定。 [0007] The delay time is stored in the sub-MCU chip set, or the way the control signal by receiving the main processor to run at the end of the initialization procedure to determine the output.

[0008] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 After the [0008] In order to reduce the workload of the main processor, reducing the host processor interface resource consumption, the sub MCU chip receives all of the remote control signal or the key signal, which is parsed into a corresponding digital signal transmission to said instruction the host processor.

[0009] 所述副MCU芯片接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的 [0009] Real-time clock chip receives the sub MCU clock chip output at the current time reaches the user set

开机或者关机时间时,输出指令信号,控制电视机整机上电工作或者进入待机状态。 Boot or shutdown time, the output of the command signal, the power to control the TV the whole work or into standby.

[0010] 同时,本发明结合上述方法又相应地提出了一种电视机的待机和整机上电管理电 [0010] Also, the present invention is a combination of these methods has accordingly proposed a television on standby electrical power management and machine

3路,包括电视开机后上电工作的主处理器和电视待机时保持上电工作的副MCU芯片;其中, Keep working on electric 3-way, including electrical work boot after TV host processor and a TV stand, vice MCU chip; which,

所述副MCU芯片的输入端接收遥控或者按键信号,通过其中一路输出端连接电视机显示屏的开关控制端,在所述副MCU芯片接收到开机指令后,根据所述主处理器内部初始化程序的运行时间,在延迟所述时间后通过其所述的输出端输出指令信号,控制显示屏开机显示。 After the input of the sub MCU chip receives the remote control or the key signal, by the way in which the switch control terminal connected to the output of the TV screen, in the sub-MCU chip receives the boot command, according to the main processor internal initialization procedure run time, delay time after the output terminal through which said output command signal, control the display to display the boot. [0011 ] 在本发明中,所述显示屏为液晶屏,副MCU芯片的P丽信号输出端连接所述液晶屏的背光亮度调节端口,通过改变副MCU芯片输出的P丽信号的占空比来实现对液晶屏背光亮度的调节。 Duty cycle [0011] In the present invention, the display is an LCD screen, sub MCU chip P Lai signal output terminal connected to an LCD backlight brightness adjustment port, by changing the deputy MCU chip output signals P Lai to achieve the LCD backlight brightness adjustment.

[0012] 所述显示屏的开关控制端为液晶屏背光板的使能端,连接所述副MCU芯片的开关信号输出端。 [0012] switch control terminal of said display panel for the LCD backlight enable terminal, an output terminal connected to said switching signal sub MCU chip. 为了改善信号波形,消除抖动,所述副MCU芯片的开关信号输出端通过由两个三极管组成的两级信号放大反向电路连接所述液晶屏背光板的使能端,实现液晶屏开关的准确控制。 In order to improve the signal waveform eliminate jitter, the switching signal output by the sub MCU chip signal from the two-stage amplifier consisting of two transistors connected to the inverter circuit of the LCD backlight panel enable terminal, the accuracy of the liquid crystal panel switches control.

[0013] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片的ADC端口和中断信号输入端口分别与电视机按键板的模拟按键信号输出端和红外遥控接收头模块的输出端对应连接,对输入的按键信号进行模数转换后,或者对接收到的遥控信号进行解码后,生成相应的数字指令信号,通过副MCU芯片的UART接口传送给所述的主处理器。 [0013] In order to reduce the workload of the main processor, reducing the host processor interface resource consumption, the sub MCU chip ADC port and interrupt signal input port, respectively, and the TV button keypad analog signal output infrared remote control receiver and an output terminal connected to a corresponding header module, a key signal inputted to the analog-digital conversion, or the remote control signal received after decoding, to generate the corresponding digital command signal, transmitted by the sub MCU UART interface chip to said main processor.

[0014] 为了实现电视机的定时开关机功能,所述副MCU芯片的I2C总线端通过I2C总线分别与主处理器和实时时钟芯片的总线端对应连接,所述实时时钟芯片的备份电源端连接电池,在电视机待机时为实时时钟芯片提供工作电源;所述实时时钟芯片的主电源端连接电视机电源板的低压直流电源输出端,在电视机上电后为实时时钟芯片提供工作电源;所述实时时钟芯片的中断信号输出端连接副MCU芯片,在达到用户的设定时间时,向副MCU芯片输出中断信号,通过所述副MCU芯片实现定时开关机控制。 [0014] In order to achieve the TV timer switch function, the I2C bus terminal sub MCU chip through the I2C bus and the bus terminal, respectively, the main processor and real-time clock chip corresponding connection, a backup power supply end of the real-time clock chip connections batteries in the TV standby power to provide work for the real-time clock chip; the real-time clock chip power supply terminal connected to the main low-voltage DC power output TV power board on the TV after power supplies power for the real-time clock chip; the referred to the real-time clock chip interrupt signal output is connected Vice MCU chip, when it reaches the user to set the time, the deputy MCU chip output interrupt signal, the timer switch is controlled by the sub MCU chip.

[0015] 为了方便副MCU芯片在线升级,所述副MCU芯片与电视机的升级接口相连接,接收外部程序存储设备中的升级程序,以更新其内部的软件程序。 [0015] In order to facilitate sub MCU chip online upgrade, the sub-MCU chip upgrade interface with the TV is connected to receive an external program storage device upgrade program to update its internal software program.

[0016] 与现有技术相比,本发明的优点和积极效果是:本发明通过对现有电视机电路中负责待机时接收开机指令的副MCU芯片进行充分利用,将其兼用作显示屏的上电时序控制单元,从而避开了主处理器上电初始化期间由于显示屏不可控而产生的屏闪、图像异常等现象,有效提高了图像输出质量。 [0016] Compared with the prior art, the advantages and positive effects of the invention are: the present invention by the circuit of the existing television receiver is responsible for standby power command when the sub MCU chip full use, it also serves as a display Power-timing control unit, thus avoiding the screen flash, image and abnormal electrical phenomena on the main processor during initialization due to uncontrollable display generated, effectively improve the image quality of the output. 此外,通过将所述副MCU芯片与实时时钟芯片进行连接,从而实现了电视机的定时开关机功能。 In addition, by the Vice MCU chip real-time clock chip connection, enabling the TV timer switch function.

附图说明 Brief Description

[0017] 图1是本发明中电视机的待机和整机上电管理原理方框图;[0018] 图2是实时时钟电路连接原理图; [0017] Figure 1 is a block diagram of the present invention, the standby power management and on the whole principle of the TV; [0018] Figure 2 is a real-time clock circuit connection diagram;

[0019] 图3是副MCU芯片与液晶屏背光板的电路连接原理图;[0020] 图4是遥控信号和按键信号与副MCU芯片连接的电路原理图;[0021 ] 图5是副MCU芯片的管脚连接原理图。 [0019] FIG. 3 is vice MCU chip and LCD backlight circuit connection diagram; [0020] Figure 4 is a circuit diagram of remote control signals and vice key signal MCU chip connection; [0021] FIG. 5 is vice MCU chip pin connection diagram.

具体实施方式 DETAILED DESCRIPTION

[0022] 下面结合附图和具体实施方式对本发明作进一步详细地说明。 [0022] below with reference to the accompanying drawings and specific embodiments of the present invention is further described in detail.

4[0023] 本发明的电视机待机系统主要由如下几部分组成:按键电路、遥控电路、实时时钟电路和副MCU芯片。 4 [0023] TV standby system of the invention consists of the following components: key circuit, remote control circuit, a real-time clock circuit and vice MCU chips. 在原来的电视机系统中,按键信号、遥控信号、实时时钟以及电视启动时对显示屏的控制信号都是与电视的主处理器相连接。 In the original TV system, when the key signal, the remote control signal, the real-time clock and a TV control signal for starting the display is connected to the main processor TV. 而在本发明的电视系统中,将外部的按键遥控和定时都看作成外部中断信号,通过副MCU芯片来获取外部信息,进而实现与主处理器的连接通信,其系统框图参见图1所示。 In the television system of the present invention, the external key on the remote and timing are regarded as an external interrupt signal, to obtain the external information by the sub MCU chip, so as to realize connection to communicate with the host processor, the system block diagram shown in see Figure 1 .

[0024] 图1中,EM8624L为电视开机后上电工作的主处理器,Atmega48为电视待机时保持上电工作的副MCU芯片。 [0024] Figure 1, EM8624L TV turned on after the main processor power to work, Atmega48 maintain Vice MCU chip power-on standby for television work. 所述副MCU芯片在接收到遥控器或者按键板发出的开机指令信号时,输出控制信号,控制电视机整机上电工作;并根据所述主处理器内部初始化程序的运行时间,在延迟所述时间后输出开机0N信号,控制显示屏PANEL开机显示。 When the power command signal in the sub MCU chip receiver to the remote controller or the key sheet emitted, the output control signals to control the TV power working machine; and according to the running time of the main processor internal initialization procedures, the delays 0N boot time later output signal to control the display PANEL boot display. [0025] 所述的延迟时间可以根据主处理器内部初始化程序的运行时间预先存储设定在副MCU芯片中,副MCU芯片在接收到开机指令信号后,延时所述时间后,输出开机0N信号,控制显示屏PANEL开机显示。 After the delay time [0025] The set may be stored in advance according to the running time of the main processor initialization routine internal sub MCU chip, the sub MCU chip after receiving the power command signal, the delay time, the output power 0N signals to control the display PANEL boot display. 当然,所述延时时间也可以通过接收主处理器在初始化程序运行结束后输出的控制信号来确定,在副MCU芯片接收到此控制信号后,向显示屏PANEL输出开机0N信号。 Of course, the control signal time can also receive a host processor to run at the end of the initialization procedure to determine the output of the delay in receiving this after Vice MCU chip control signal output to the display PANEL 0N turn signal.

[0026] 为了减少主处理器的工作量,降低主处理器端口资源的消耗,所述副MCU芯片接收全部的遥控信号或者按键信号,将其解析成相应的数字指令信号后传输给所述的主处理器。 After the [0026] In order to reduce the workload of the main processor, reducing the host processor interface resource consumption, the sub MCU chip receives all of the remote control signal or the key signal, which is parsed into a corresponding digital signal transmission to said instruction the host processor.

[0027] 所述副MCU芯片同时与实时时钟电路TIMER相连接,接收时钟芯片输出的实时时钟信号,在当前时间到达用户设定的开机时间时,实时时钟电路TIMER输出中断信号,控制电视机整机上电,开机工作;在当前时间到达用户设定的关机时间时,副MCU芯片输出待机指令信号,控制电视机整机进入待机状态。 When the [0027] while the sub-MCU chip connected to the real-time clock circuit TIMER, receive real-time clock chip clock signal output at the current time reaches the start time set by the user, real-time clock circuit TIMER interrupt output signal to control the entire TV machine power, start work; when the user arrives at the current time set off time, Vice MCU chip output standby command signals to control the TV machine into standby.

[0028] 副MCU芯片ATmega48通过其通用异步串行接口UART和I2C总线与主处理器EM8624L相连接,传送解析后的遥控或者按键指令信号以及其他数据指令。 [0028] Vice ATmega48 MCU chip connected through its universal asynchronous serial UART and I2C bus interface with the main processor EM8624L, remote or key command signal, and other data transfer instruction parsed. 红外遥控接收头模块输出的遥控信号IR与副MCU芯片ATmega48的中断信号输入端口INTO相连接,将接收到的遥控信号进行解码后,通过其UART接口传送给主处理器EM8624L,响应遥控信号。 After the infrared remote control receiver module output IR remote control signals and vice MCU chip interrupt signal input port connected INTO ATmega48 and will receive the remote control signal is decoded, through its UART interface is transmitted to the host processor EM8624L, respond to the remote signal. 外部实时时钟TMER通过其中断信号输出端INT给副MCU芯片ATmega48提供定时开关机中断,或者通过I2C总线通知副MCU芯片ATmega48当前的时间。 TMER by external real-time clock interrupt signal output INT to Vice ATmega48 MCU chip provides interrupt timer switch, or by notice I2C bus Vice MCU chip ATmega48 current time. 按键板KEY的模拟按键信号输出端连接副MCU芯片ATmega48的ADC端口, ADC端口采集按键板KEY的模拟信号,转换成数字信号通过UART接口传送给主处理器EM8624L。 ADC port, ADC port capture analog signals keypad KEY KEY keypad key signal analog output is connected Vice ATmega48 MCU chip, and converted into digital signals transmitted via a UART interface to the host processor EM8624L. 副MCU芯片ATmega48连接电视机的Update升级接口,这样不同的机型,不同的显示屏PANEL,只要将副MCU芯片ATmega48与外部程序存储设备相连接,下载外设中的升级程序,即可实现副MCU芯片ATmega48与不同机芯板电路的兼容匹配。 Vice ATmega48 MCU chip connection to a TV Update upgrade interface, so different models, different screen PANEL, as long as the deputy ATmega48 MCU chip and an external storage device connected to the program, download the upgrade peripherals, you can achieve deputy ATmega48 MCU chip matching circuit board is compatible with different movements.

[0029] 下面结合图2〜图5具体阐述副MCU芯片ATmega48与外围器件的连接结构。 [0029] Referring to Figures 2 ~ 5 specifically addressed the connection structure vice ATmega48 MCU chip and peripheral devices. 图2中,实时时钟电路采用时钟芯片DS1339实现,其总线端SDA、SCL通过I2C总线连接副MCU芯片U25的27 、28展卩,并分别经上拉电阻R176、R177连接3. 3V直流电源。 Figure 2, the real-time clock chip DS1339 clock circuit to achieve its bus terminal SDA, SCL I2C bus connections made through the MCU chip U25 27, 28 exhibition Jie, and by the pull-up resistors R176, R177, respectively, 3. 3V DC power connection. 副MCU芯片U25通过lt总线读取时钟芯片DS1339中的时间信息,例如年、月、日、周、时、分等,实现了时间的显示等相关功能,如图5所示。 MCU chip is read by vice U25 lt bus clock chip DS1339 time information, such as year, month, day, week, hour, minute, to achieve a time display and other related functions, shown in Figure 5. 时钟芯片DS1339的备份电源端VBACKUP连接电池BT1、BT2,在电视机待机时为时钟芯片DS1339提供工作电源。 Clock chip DS1339 backup battery power supply terminal connection VBACKUP BT1, BT2, the TV standby supplies power to the clock chip DS1339. 时钟芯片DS1339的主电源端VCC连接电视机电源板的3. 3V低压直流电源输出端3V3—MCU,在电视机上电后为时钟芯片DS1339提供工作电源。 Clock chip DS1339 mains terminal VCC connected TV power board 3. 3V low voltage DC power output 3V3-MCU, on the TV after power supplies power to the clock chip DS1339. 所述时钟芯片DS1339的中断信号输出端INT连接副MCU芯片U25的26脚, 在到达用户的设定时间时,向副MCU芯片U25输出中断信号RTCJNT1,通过所述副MCU芯片U25实现电视机的定时开关机等相关功能。 The clock chip DS1339 INT interrupt signal output terminal connected to the sub MCU chip U25 26 feet, when it reaches the user to set the time, the deputy MCU chip U25 output interrupt signal RTCJNT1, through the sub-MCU chip U25 realized the TV timer switch machines and other related functions. 时钟芯片DS1339的XI、 X2端连接外部晶振X5,提供基准时钟。 XI, X2 end clock chip DS1339 connected external crystal X5, provides a reference clock.

[0030] 图3是副MCU芯片U25与显示屏PANEL的电路连接原理图,以液晶屏为例加以说明。 [0030] FIG. 3 is vice MCU chip U25 and display PANEL schematic circuit connection to the LCD screen as an example to illustrate this. 副MCU芯片U25的P丽信号输出端13脚连接液晶屏背光板的背光亮度调节端口P丽, 通过改变副MCU芯片U25输出的P丽信号的占空比来实现对液晶屏背光亮度的调节。 Connect the LCD backlight panel backlight sub MCU chip U25's P Lai signal output port P 13 feet dimming Korea, by changing the duty cycle of the output of the sub MCU chip U25 P Lai signal to achieve the LCD backlight brightness adjustment. 所述副MCU芯片U25的P丽信号输出端13脚同时通过NPN型三极管Q10及其外围电路组成的信号放大反向电路连接所述液晶屏背光板的Bright端口。 The U25's deputy MCU chip P Lai signal output by 13 feet at the same time signal NPN type transistor Q10 and its peripheral circuit reverse amplification circuit connecting the LCD backlight panels Bright port.

[0031] 所述副MCU芯片U25的开关信号输出端10脚通过由三极管Qll、 Q12组成的两级放大反向电路处理后,连接液晶屏背光板的使能端EN,开关信号PBIAS通过两次取反,可有效改善信号波形,去除抖动。 [0031] The deputy MCU chip U25 switching signal output levels by 10 feet through the transistor Qll, Q12 reverse amplification circuit consisting of processing, connecting the LCD backlight enable terminal EN, switching signal PBIAS by two negated, which can effectively improve the signal waveform to remove jitter.

[0032] 副MCU芯片U25接管主处理器对显示屏PANEL的控制,作用如下: [0033] (1)对显示屏PANEL的上电和控制更加灵活,解放了主处理器; [0034] (2)主处理器的嵌入式系统在启动过程中有两级B00T,在B00T1时,主芯片对外围还没有初始化,此时对显示屏PANEL来说是不可控的,上电时带来的屏闪、图像异常等现象不可控制和消除;而运用副MCU芯片U25来管理,可以控制显示屏PANEL的整个上电时序。 [0032] Deputy MCU chip U25 PANEL take over the main processor for display control, the role of the following: [0033] (1) for the display of the power and control PANEL more flexible, the liberation of the main processor; [0034] (2 ) the main processor for embedded systems B00T levels during startup, when B00T1, the main chip peripheral initialization yet, this time to display PANEL is not controllable, when the power to bring the screen flash image uncontrollable abnormal phenomena and elimination; and the use of sub MCU chip U25 to manage, you can control the entire power-up sequence of the display PANEL. [0035] 副MCU芯片U25在接收到开机指令后,通过其输出端2脚向电视机电源板输出信号PWRJ)N,控制电源板上电工作;并通过其输出端23脚向液晶屏逻辑板输出开机信号PPWR。 [0035] The sub MCU chip U25 after receiving the power command, through its output pin 2 to the output signal of the TV power supply board PWRJ) N, to control the work of the power supply board; and through its output to the LCD screen 23 pin logic board Output start signal PPWR.

[0036] 图4是遥控信号和按键信号与副MCU芯片U25连接的电路原理图,按键从KEY端输入模拟信号到副MCU芯片U25的ADC端口22脚,并经上拉电阻R171、 R172连接3. 3V直流电源3V3—MCU。 [0036] Figure 4 is a circuit diagram of remote control signals and vice key signal MCU chip U25 connected, key KEY-ended input analog signal to the ADC sub MCU chip U25 port 22 feet, and by the pull-up resistors R171, R172 Connection 3 . 3V DC power 3V3-MCU. ADC采样按键的模拟电压后,量化成数字信号,通过UART接口30、31脚传输给主处理器EM8624L,从而有效降低了主处理器端口资源的消耗。 After the analog voltage ADC sampling buttons, quantized into a digital signal, UART interface 30, 31 feet and transmit them to the main processor EM8624L, thus effectively reducing the host processor interface resource consumption. 另外,待机时,副MCU芯片U25如果采集到开机按键电压,即可唤醒电源开始工作。 In addition, standby, deputy MCU chip U25 if collected voltage power button to wake up the power to work.

[0037] 红外遥控信号从IR端通过接口J23的1脚输入给副MCU芯片U25的32脚,副MCU 芯片U25对接收到的遥控信号进行译码后,通过其UART接口30脚(RXD) 、31脚(TXD)传输给主处理器EM8624L。 [0037] IR infrared remote control signal from the rear end by a pin input connector J23 vice MCU chip U25 to 32 feet, the remote control signal MCU chip U25 deputy received decoding, through its UART interface 30 feet (RXD), 31 feet (TXD) is transmitted to the host processor EM8624L. 遥控信号和按键信号一样都可以唤醒电视机电源。 Like the remote control signal and the key signal can wake up the TV power. [0038] 在电视机上电工作后,副MCU芯片U25通过其25脚输出指示灯控制信号LED,经三极管Q8控制电视机指示灯由待机颜色转换为开机颜色。 After the [0038] electrical work on the TV, the Deputy MCU chip U25 via its 25-pin output control signal indicator LED, controlled by the transistor Q8 TV standby indicator color conversion from color to boot.

[0039] 为了方便副MCU芯片U25在线升级,所述副MCU芯片U25的15、16、17脚连接电视机的升级接口J25,接收外部程序存储设备中的升级程序,以更新其内部的软件程序,实现与电视机主机芯板的匹配。 [0039] In order to facilitate online upgrade vice MCU chip U25, U25 of the sub-chip MCU pin connector 15,16,17 TV upgrade interface J25, receiving an external program storage device upgrade program to update its internal software program matching core of implementation and television host.

[0040] 二十一世纪中的能源问题尤为突出,节约能源,发展节能电器是迫在眉睫的事情, 而电视产品是每家每户所不可缺少的家用电器。 [0040] in the twenty-first century is particularly prominent energy, energy conservation, development of energy-efficient appliances is an urgent matter, and TV products are indispensable for every household appliances. 随着大家能源意识和危机感的增加,节能电器将会成为一个电器中的主流。 As we increase energy awareness and a sense of crisis, energy-saving electrical appliances will become a mainstream. 本发明实现了对电视机待机过程中电源管理的模块化设计,不但降低了功耗,而且模块化的设计可以大大减少系统设计的周期,也使对显示屏、按键板、遥控信号和实时时钟的控制更加地灵活可控,同时也避免了一些复杂问题的出现,加快了产品的上市时间。 The present invention realizes the TV standby power management process of modular design, not only reduces power consumption, and the modular design can greatly reduce the design cycle system, also for the display, keypad, remote control signals and real time clock The control more flexible and controllable manner, but also to avoid some of the emergence of complex problems, speeding up time to market. [0041] 当然,上述说明并非是对本发明的限制,本发明也并不仅限于上述举例,本技术领域的普通技术人员在本发明的实质范围内所做出的变化、改型、添加或替换,也应属于本发明的保护范围。 [0041] Of course, the above description is not a limitation of the present invention, the present invention is also not limited to the above example, changes of ordinary skill in the art within the spirit scope of the present invention is made, modifications, additions or substitutions, should belong to the scope of the invention.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
CN1750611A10 Oct 200522 Mar 2006海信集团有限公司Method for controlling on and off of double CPU TV set by SCART interface
CN1874453A6 Jun 20066 Dec 2006海信集团有限公司Quick starting TV set capable of implementing low power dissipation in stand by
US55659093 Feb 199415 Oct 1996Television Computer, Inc.Method of identifying set-top receivers
US620869229 Jun 199827 Mar 2001Sarnoff CorporationApparatus and method for performing scalable hierarchical motion estimation
US200501662218 May 200328 Jul 2005Pugel Michael A.Television signal receiver capable of receiving emergency alert signals
Classifications
International ClassificationH04N5/63
Legal Events
DateCodeEventDescription
27 Aug 2008C06Publication
22 Oct 2008C10Request of examination as to substance
4 Aug 2010C14Granted