WO2019071653A1 - 一种烧录系统及方法 - Google Patents

一种烧录系统及方法 Download PDF

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WO2019071653A1
WO2019071653A1 PCT/CN2017/107408 CN2017107408W WO2019071653A1 WO 2019071653 A1 WO2019071653 A1 WO 2019071653A1 CN 2017107408 W CN2017107408 W CN 2017107408W WO 2019071653 A1 WO2019071653 A1 WO 2019071653A1
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input
pin
timing controller
output
supply voltage
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PCT/CN2017/107408
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English (en)
French (fr)
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张华�
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深圳市华星光电半导体显示技术有限公司
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Publication of WO2019071653A1 publication Critical patent/WO2019071653A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals

Definitions

  • the present invention relates to the field of screen display technologies, and in particular, to a burning system and method.
  • the LCD panel driver architecture is shown in Figure 1.
  • the timing controller (TCON IC) outputs all the driving signals to the LCD panel.
  • TCON IC Mainly need 1.2V (core supply voltage), 1.8V (DDR memory supply voltage) and 3.3V (external input / output interface supply voltage) voltage, some TCON IC requires 3.3V first power supply, some manufacturers TCON IC requires 3.3 V is powered by 1.2V and 1.8V. If the power-on sequence does not meet the requirements of the TCON IC, the TCON IC will be in an abnormal state and the LCD panel will not be lit properly.
  • serial peripheral interface SPI Serial Peripheral Interface
  • the other end of the device is connected to the USB interface of the computer (as shown in Figure 1).
  • the 3.3V, 1.8V, and 1.2V voltages required by the TCON IC are converted from the input 12V through a voltage conversion circuit. These three voltages have been designed according to the power-up timing requirements of the TCON IC.
  • Some of the control signals required by the SPI writer are connected to the pin pins corresponding to the TCON IC. These pin pins are powered by an external 3.3V voltage.
  • the SPI programmer needs to pull these pin voltages low when writing data to the flash. Because these pin pins are connected to the 3.3V voltage required by the TCON IC, causing the 12V input voltage to be unpowered (ie, when the TCON IC is not powered), the output signal voltage at the SPI writer end (caused by the USB power supply) is transmitted to the line.
  • the 3.3V power supply network of TCON IC becomes the first "3.3V" voltage for power supply to TCON IC (3.3V is the specification value, the actual voltage is greater than 2V to meet the functional requirements), and it needs to be later than 1.2V and 1.8 for 3.3V. V For the TCON IC that supplies power, the original voltage supply sequence will be disrupted, causing an abnormal display to occur.
  • the technical problem to be solved by the present invention is to provide a programming system and method for enabling a timing controller IC requiring different power-on timings to operate normally without affecting the normal operation of the production line.
  • the present invention provides a programming system including: a programmer, a timing controller, and an external input/output interface supply voltage input line connected between the programmer and the timing controller.
  • Controllable switch for isolating the burner from the external input/output interface supply voltage input line before the external input/output interface supply voltage is input to the timing controller Connecting, and after the external input/output interface supply voltage is input to the timing controller, turning on connection of the writer to the external input/output interface supply voltage input line.
  • controllable switch is a voltage input according to a voltage input line of an external input/output interface of the timing controller, and controls the partition or guide of the connection of the external input/output interface supply voltage input line of the programmer and the timing controller. Pass the chip.
  • controllable switch comprises:
  • a power supply voltage pin connected to an external input/output interface supply voltage input end of the timing controller for supplying power to the controllable switch
  • Two output pins are connected to the power supply control pin of the timing controller
  • Two control pins are connected to the external input/output interface supply voltage input terminal of the timing controller for controlling the first input pin and the first output according to the external input/output interface supply voltage of the timing controller.
  • the programmer includes an interface controller, and the interface controller includes two signal output pins, and the two input pins of the controllable switch are respectively connected to the two signal output pins.
  • the control pin is specifically configured to block the first input pin and the first output pin, respectively, when the external input/output interface supply voltage of the timing controller is not received Two input pins and the second output pin; and external to the timing controller When the input/output interface is supplied with a voltage, the first input pin and the first output pin, the second input pin and the second output pin are respectively turned on.
  • the two signal outputs of the interface controller when the first input pin is electrically connected to the first output pin, and the second input pin is electrically connected to the second output pin, the two signal outputs of the interface controller The signal output by the pin reaches the power supply control pin of the timing controller IC via the first output pin and the second output pin, respectively.
  • the external input/output interface of the timing controller has a power supply voltage of 3.3V.
  • the present invention also provides a programming method for a programming system, the programming system comprising: a programmer, a timing controller, and an external input connected to the programmer and the timing controller/ A controllable switch between the output voltage supply input lines of the output interface, the programming method comprising:
  • the controllable switch blocks the connection of the programmer to the external input/output interface supply voltage input line of the timing controller
  • the controllable switch turns on the connection of the programmer to the external input/output interface supply voltage input line of the timing controller.
  • the controllable switch includes two input pins connected to the programmer, two output pins connected to the power supply control pin of the timing controller, and an external input/output interface connected to the timing controller. Two control pins at the supply voltage input;
  • the control pin separates the first input pin from the first output pin, the second input pin, and the second output pin respectively when the external input/output interface supply voltage of the timing controller is not received; When receiving the external input/output interface supply voltage of the timing controller, the first input pin and the first output pin, the second input pin and the second output pin are respectively turned on.
  • the serial peripheral interface writer includes an interface controller, and the interface controller includes two signal output pins respectively connected to two input pins of the controllable switch;
  • Two signal output pins of the interface controller when the first input pin is electrically connected to the first output pin and the second input pin is electrically connected to the second output pin The output signal reaches the power supply control pin of the timing controller via the first output pin and the second output pin, respectively.
  • the beneficial effects of the embodiments of the present invention are: by increasing the control mode of the signal output of the programmer, the timing controllers requiring different power-on sequences can be positive without affecting the normal operation of the production line. Often working, a timing controller application that is compatible with any timing requirements, and solves the anomaly that can occur with timing controllers that require special power-up timing requirements.
  • FIG. 1 is a schematic diagram of a conventional SPI writer and LCD panel driving architecture
  • FIG. 2 is a schematic diagram of a connection between a conventional SPI writer and a TCON IC
  • FIG. 3 is a schematic diagram of a connection structure of a programming system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a pin of an SPI burner interface controller according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing the connection of a controllable switch pin and a TCON IC according to an embodiment of the present invention.
  • a first embodiment of the present invention provides a programming system including: a programmer, a timing controller, and a controllable connection between an external input/output interface supply voltage input line of the programmer and the timing controller a switch for disconnecting the burner from the external input/output interface supply voltage input line and external input/output interface before the external input/output interface supply voltage is input to the timing controller After the power supply voltage is input to the timing controller, the connection between the burner and the external input/output interface supply voltage input line is turned on.
  • the programmer of the embodiment is described by taking a serial peripheral interface writer (hereinafter referred to as an SPI writer) as an example.
  • the controllable switch 3 is connected between the SPI programmer and the 3.3V voltage input line of the timing controller to isolate the serial peripheral interface programmer and the timing controller before the 3.3V voltage is input to the timing controller.
  • the 3.3V voltage input line is connected, and after the 3.3V voltage is input to the timing controller, the serial peripheral interface writer is connected to the 3.3V voltage input line of the timing controller.
  • the timing controller (TCON IC) supply voltage includes: 1.2V core supply voltage, 1.8V DDR memory supply voltage and 3.3V external input / output interface supply voltage.
  • the controllable switch 3 is added to isolate the output signal of the SPI writer from the line connection of the 3.3V power supply signal of the TCON IC, and when the voltage of 12V is input, the voltage conversion circuit is used according to the power-on timing required by the TCON IC. After the conversion is completed to obtain the voltages of 3.3V, 1.8V and 1.2V, then the controllable switch 3 is turned on, and the output signal of the SPI writer is connected to the corresponding pin of the TCON IC, which does not affect the 3.3V and 1.8 required by the TCON IC. V and 1.2V voltage power-up timing, thus avoiding display abnormal conditions caused by different power-on timings of different TCON ICs.
  • FIG. 4 is a pin diagram of the signal connection interface controller of the SPI writer and the circuit board.
  • the output signals CON1 and CON2 of the 1st pin and the 10th pin need to pass the 3.3V of the TCON IC.
  • the voltage input line is routed to the 3.3V supply control pin of the TCON IC.
  • the first pin and the tenth pin of the interface controller of the SPI writer are directly connected to the 3.3V voltage input line of the TCON IC, and the two outputs of CON1 and CON2 are output.
  • the signal continues to be delivered, causing the 3.3V from the SPI writer to continue to be applied to the TCON IC's 3.3V supply control pin.
  • the original voltage The power supply sequence will be disrupted, causing an abnormal display to occur.
  • the controllable switch 3 of this embodiment is a voltage that is input according to a 3.3V voltage input line of the timing controller IC, and controls a chip that is connected or turned on by the SPI writer and the 3.3V voltage input line of the timing controller IC. As shown in Figure 5, the connection between the pin of the controllable switch and the TCON IC is shown.
  • the V+ pin is the supply voltage pin and is connected to the 3.3V voltage input terminal (VDD33) of the TCON IC.
  • the controllable switch 3 is powered; IN1 and IN2 are control pins; NO1 and NO2 are input pins, respectively connected to the first pin and the tenth pin of the interface controller of the SPI writer, respectively receiving CON1, CON2 Two output signals; COM1 and COM2 are output pins that are connected to the power control pin of the TCON IC.
  • the control pin does not receive the voltage of the 3.3V voltage input line of the timing controller IC, the first input pin NO1 is spaced apart from the first output pin COM1, and the second input pin NO2 and the second output pin are separated.
  • the control pins IN1 and IN2 of the controllable switch 3 receive a voltage of 3.3V, thereby turning on between the first input pin NO1 and the first output pin COM1.
  • the second input pin NO2 is connected to the second output pin COM2, and the two output signals from the interface controllers CON1 and CON2 are sent to the TCON IC, so that the CON1 and CON2 signals cannot be earlier than 3.3V. Input to the TCON IC, so there is no abnormality in the TCON IC power-up sequence.
  • the second embodiment of the present invention provides a burning method, which is applied to the burning system of the first embodiment of the present invention, and the burning method includes:
  • the controllable switch blocks the connection of the programmer to the external input/output interface supply voltage input line of the timing controller
  • the controllable switch turns on the connection of the programmer to the external input/output interface supply voltage input line of the timing controller.
  • the controllable switch includes two input pins connected to the programmer, two output pins connected to the power supply control pin of the timing controller, and an external input/output interface connected to the timing controller. Two control pins at the supply voltage input;
  • the control pin separates the first input pin from the first output pin, the second input pin, and the second output pin respectively when the external input/output interface supply voltage of the timing controller is not received; When receiving the external input/output interface supply voltage of the timing controller, the first input pin and the first output pin, the second input pin and the second output pin are respectively turned on.
  • the serial peripheral interface writer includes an interface controller, and the interface controller includes two signal output pins respectively connected to two input pins of the controllable switch;
  • Two signal output pins of the interface controller when the first input pin is electrically connected to the first output pin and the second input pin is electrically connected to the second output pin The output signal reaches the power supply control pin of the timing controller via the first output pin and the second output pin, respectively.
  • the beneficial effects of the embodiments of the present invention are: by increasing the control mode of the signal output of the programmer, the timing controller ICs requiring different power-on sequences can be normal without affecting the normal operation of the production line. Work, compatible with timing controller IC applications for any timing requirements, Solved the abnormal situation that occurs when the timing controller IC with special power-up timing requirements is applied.

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Abstract

一种烧录系统及方法，其中，烧录系统包括：烧录器、时序控制器以及连接在烧录器与时序控制器的外部输入/输出接口供电电压的输入线路之间的可控开关，所述可控开关用于在外部输入/输出接口供电电压输入至时序控制器之前，隔断烧录器与所述外部输入/输出接口供电电压输入线路的连接，并在外部输入/输出接口供电电压输入至时序控制器之后，导通烧录器与所述外部输入/输出接口供电电压输入线路的连接。通过增加烧录器信号输出的控制方式，使要求不同上电时序的时序控制器均能正常工作，兼容任何时序需求的时序控制器应用，解决了应用特殊上电时序需求的时序控制器时会出现的异常状况。

Description

一种烧录系统及方法
本申请要求于2017年10月13日提交中国专利局、申请号为201710953290.5、发明名称为“一种烧录系统及方法”的中国专利申请的优先权，上述专利的全部内容通过引用结合在本申请中。
技术领域
本发明涉及屏幕显示技术领域，尤其涉及一种烧录系统及方法。
背景技术
LCD面板驱动架构如图1所示，时序控制器(TCON IC)输出所有的驱动信号给到LCD面板，不同TCON IC厂商设计的产品，其需要的供电电压上电时序要求会有差异，TCON IC主要需要1.2V(内核供电电压)、1.8V(DDR内存供电电压)和3.3V(外部输入/输出接口供电电压)电压，有些TCON IC要求3.3V最先供电，有些厂商的TCON IC则要求3.3V晚于1.2V和1.8V供电，若上电时序不满足TCON IC的要求，则TCON IC会处于异常状态而使LCD面板无法正常点亮。
工厂端生产作业时，需要对每片面板上的闪存flash进行mura补偿数据写入，串行外设接口SPI(Serial Peripheral Interface)烧录器会一直连接在TCON所在的电路板上，SPI烧录器另一端连接到电脑的USB接口(如图1所示)。再如图2所示，TCON IC所需要的3.3V、1.8V和1.2V电压都由输入12V电压经电压转换电路转换得到，此三个电压已经按照TCON IC所需的上电时序要求进行设计，SPI烧录器需要的部分控制信号连接到TCON IC对应的pin脚，这些pin脚又由外部3.3V电压供电，SPI烧录器在向flash写入数据时需要将这些pin脚电压拉低。因为这些pin脚与TCON IC所需的3.3V电压连接，导致12V输入电压未供电时(即TCON IC未上电时)，SPI烧录器端的输出信号电压(USB一直供电导致)通过线路传输到TCON IC的3.3V供电网络，变成最先供电给TCON IC的“3.3V”电压(3.3V为规格值，实际电压大于2V即可满足功能需求)，对于3.3V需要晚于1.2V和1.8V 供电需求的TCON IC，原有的电压供电顺序会被打乱，导致异常显示发生。
发明内容
本发明所要解决的技术问题在于，提供一种烧录系统及方法，以在不影响产线正常作业的情况下，使要求不同上电时序的时序控制器IC均能正常工作。
为了解决上述技术问题，本发明提供一种烧录系统，包括：烧录器、时序控制器以及连接在所述烧录器与所述时序控制器的外部输入/输出接口供电电压输入线路之间的可控开关，所述可控开关用于在所述外部输入/输出接口供电电压输入至所述时序控制器之前，隔断所述烧录器与所述外部输入/输出接口供电电压输入线路的连接，并在所述外部输入/输出接口供电电压输入至所述时序控制器之后，导通所述烧录器与所述外部输入/输出接口供电电压输入线路的连接。
其中，所述可控开关为一根据时序控制器的外部输入/输出接口供电电压输入线路输入的电压，控制烧录器与时序控制器的外部输入/输出接口供电电压输入线路连接的隔断或导通的芯片。
其中，所述可控开关包括：
供电电压管脚，连接在所述时序控制器的外部输入/输出接口供电电压输入端，用于为所述可控开关供电；
两个输入管脚，与所述烧录器相连；
两个输出管脚，与所述时序控制器的供电控制管脚相连；
两个控制管脚，连接在所述时序控制器的外部输入/输出接口供电电压输入端，用于根据所述时序控制器的外部输入/输出接口供电电压控制第一输入管脚与第一输出管脚之间的隔断或导通，以及第二输入管脚与第二输出管脚之间的隔断或导通。
其中，所述烧录器包括接口控制器，所述接口控制器包括两个信号输出管脚，所述可控开关的两个输入管脚分别与所述两个信号输出管脚相连。
其中，所述控制管脚具体用于在没有接收到所述时序控制器的外部输入/输出接口供电电压时，分别隔断所述第一输入管脚与所述第一输出管脚、所述第二输入管脚与所述第二输出管脚；以及在接收到所述时序控制器的外部 输入/输出接口供电电压时，分别导通所述第一输入管脚与所述第一输出管脚、所述第二输入管脚与所述第二输出管脚。
其中，在所述第一输入管脚与所述第一输出管脚导通、所述第二输入管脚与所述第二输出管脚导通时，所述接口控制器的两个信号输出管脚输出的信号分别经由所述第一输出管脚和所述第二输出管脚到达所述时序控制器IC的供电控制管脚。
其中，所述时序控制器的外部输入/输出接口供电电压为3.3V。
本发明还提供一种烧录方法，应用于一种烧录系统，所述烧录系统包括：烧录器、时序控制器以及连接在所述烧录器与所述时序控制器的外部输入/输出接口供电电压输入线路之间的可控开关，所述烧录方法包括：
在外部输入/输出接口供电电压输入至时序控制器之前，可控开关隔断烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接；
在外部输入/输出接口供电电压输入至时序控制器之后，可控开关导通烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接。
其中，所述可控开关包括与所述烧录器相连的两个输入管脚、与时序控制器的供电控制管脚相连的两个输出管脚以及连接在时序控制器的外部输入/输出接口供电电压输入端的两个控制管脚；
所述控制管脚在没有接收到时序控制器的外部输入/输出接口供电电压时，分别隔断第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚；以及在接收到时序控制器的外部输入/输出接口供电电压时，分别导通第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚。
其中，所述串行外设接口烧录器包括接口控制器，所述接口控制器包括分别与所述可控开关的两个输入管脚相连的两个信号输出管脚；
在所述第一输入管脚与所述第一输出管脚导通、所述第二输入管脚与所述第二输出管脚导通时，所述接口控制器的两个信号输出管脚输出的信号分别经由所述第一输出管脚和所述第二输出管脚到达所述时序控制器的供电控制管脚。
本发明实施例的有益效果在于：通过增加烧录器信号输出的控制方式，在不影响产线正常作业的情况下，使要求不同上电时序的时序控制器均能正 常工作，兼容任何时序需求的时序控制器应用，解决了应用特殊上电时序需求的时序控制器时会出现的异常状况。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有SPI烧录器与LCD面板驱动架构示意图；
图2是现有SPI烧录器与TCON IC连接示意图；
图3是本发明实施例一种烧录系统的连接结构示意图；
图4是本发明实施例中SPI烧录器接口控制器的管脚示意图；
图5是本发明实施例中可控开关管脚与TCON IC连接示意图。
具体实施方式
以下各实施例的说明是参考附图，用以示例本发明可以用以实施的特定实施例。
本发明实施例一提供一种烧录系统，包括：烧录器、时序控制器以及连接在所述烧录器与所述时序控制器的外部输入/输出接口供电电压输入线路之间的可控开关，所述可控开关用于在外部输入/输出接口供电电压输入至时序控制器之前，隔断烧录器与所述外部输入/输出接口供电电压输入线路的连接，并在外部输入/输出接口供电电压输入至时序控制器之后，导通烧录器与所述外部输入/输出接口供电电压输入线路的连接。
具体地，请参照图3所示，本实施例的烧录器以串行外设接口烧录器(后称SPI烧录器)为例进行说明。可控开关3连接在SPI烧录器与时序控制器的3.3V电压输入线路之间，用于在3.3V电压输入至时序控制器之前，隔断串行外设接口烧录器与时序控制器的3.3V电压输入线路的连接，并在3.3V电压输入至时序控制器之后，导通串行外设接口烧录器与时序控制器的3.3V电压输入线路的连接。其中，时序控制器(TCON IC)的供电电压包括：1.2V的内核供电电压、1.8V的DDR内存供电电压和3.3V的外部输入/输出接口供电电压。
本发明实施例增加可控开关3，将SPI烧录器输出信号与TCON IC的3.3V供电信号的线路连接进行隔断，当输入12V电压，并按照TCON IC所需的上电时序由电压转换电路分别转换完成得到3.3V、1.8V和1.2V电压后，再使可控开关3导通，SPI烧录器输出信号连接到TCON IC相应管脚，不会影响TCON IC所需的3.3V、1.8V及1.2V电压上电时序，从而避免了因不同TCON IC所需上电时序不同而造成的显示异常状况。
请再参照图4所示，为SPI烧录器与电路板的信号连接接口控制器的管脚示意图，其中第1管脚、第10管脚的输出信号CON1、CON2需要通过TCON IC的3.3V电压输入线路输送到TCON IC的3.3V供电控制管脚。如前述现有技术，未增加可控开关时，SPI烧录器的接口控制器的第1管脚、第10管脚直接连接在TCON IC的3.3V电压输入线路上，CON1、CON2两路输出信号持续输送，从而导致来自SPI烧录器的3.3V电压也持续施加到TCON IC的3.3V供电控制管脚，对于3.3V需要晚于1.2V和1.8V供电需求的TCON IC，原有的电压供电顺序会被打乱，导致异常显示发生。
本实施例的可控开关3为一根据时序控制器IC的3.3V电压输入线路输入的电压，控制SPI烧录器与时序控制器IC的3.3V电压输入线路连接的隔断或导通的芯片。再如图5所示，示出了可控开关的管脚与TCON IC的连接关系，其中，V+管脚为供电电压管脚，连接在TCON IC的3.3V电压输入端(VDD33)，用于为可控开关3供电；IN1和IN2为控制管脚；NO1和NO2为输入管脚，分别与SPI烧录器的接口控制器的第1管脚和第10管脚相连，分别接收CON1、CON2两路输出信号；COM1和COM2为输出管脚，与TCON IC的供电控制管脚相连。当控制管脚没有接收到时序控制器IC的3.3V电压输入线路的电压时，第一输入管脚NO1与第一输出管脚COM1之间隔断，第二输入管脚NO2与第二输出管脚COM2之间隔断；当控制管脚接收到时序控制器IC的3.3V电压输入线路的3.3V电压时，第一输入管脚NO1与第一输出管脚COM1之间导通，第二输入管脚NO2与第二输出管脚COM2之间导通。这样，在TCON IC所需的3.3V供电电压未输入时，可控开关3的控制管脚IN1和IN2未接收到电压，使第一输入管脚NO1与第一输出管脚COM1之间隔断，第二输入管脚NO2与第二输出管脚COM2之间 隔断，来自SPI烧录器的接口控制器的CON1、CON2两路输出信号无法到达TCON IC。在TCON IC所需的3.3V供电电压已输入时，可控开关3的控制管脚IN1和IN2接收到3.3V电压，从而使第一输入管脚NO1与第一输出管脚COM1之间导通，第二输入管脚NO2与第二输出管脚COM2之间导通，来自接口控制器的CON1、CON2两路输出信号便被输送到TCON IC，这样，CON1和CON2信号不可能早于3.3V输入到TCON IC，所以不会造成TCON IC上电时序变动而导致异常。
相应于本发明实施例一，本发明实施例二提供一种烧录方法，应用于本发明实施例一的烧录系统，所述烧录方法包括：
在外部输入/输出接口供电电压输入至时序控制器之前，可控开关隔断烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接；
在外部输入/输出接口供电电压输入至时序控制器之后，可控开关导通烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接。
其中，所述可控开关包括与所述烧录器相连的两个输入管脚、与时序控制器的供电控制管脚相连的两个输出管脚以及连接在时序控制器的外部输入/输出接口供电电压输入端的两个控制管脚；
所述控制管脚在没有接收到时序控制器的外部输入/输出接口供电电压时，分别隔断第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚；以及在接收到时序控制器的外部输入/输出接口供电电压时，分别导通第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚。
其中，所述串行外设接口烧录器包括接口控制器，所述接口控制器包括分别与所述可控开关的两个输入管脚相连的两个信号输出管脚；
在所述第一输入管脚与所述第一输出管脚导通、所述第二输入管脚与所述第二输出管脚导通时，所述接口控制器的两个信号输出管脚输出的信号分别经由所述第一输出管脚和所述第二输出管脚到达所述时序控制器的供电控制管脚。
通过上述说明可知，本发明实施例的有益效果在于：通过增加烧录器信号输出的控制方式，在不影响产线正常作业的情况下，使要求不同上电时序的时序控制器IC均能正常工作，兼容任何时序需求的时序控制器IC应用， 解决了应用特殊上电时序需求的时序控制器IC时会出现的异常状况。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种烧录系统，其中，包括：烧录器、时序控制器以及连接在所述烧录器与所述时序控制器的外部输入/输出接口供电电压输入线路之间的可控开关，所述可控开关用于在所述外部输入/输出接口供电电压输入至所述时序控制器之前，隔断所述烧录器与所述外部输入/输出接口供电电压输入线路的连接，并在所述外部输入/输出接口供电电压输入至所述时序控制器之后，导通所述烧录器与所述外部输入/输出接口供电电压输入线路的连接。
  2. 根据权利要求1所述的烧录系统，其中，所述可控开关为一根据时序控制器的外部输入/输出接口供电电压输入线路输入的电压，控制烧录器与时序控制器的外部输入/输出接口供电电压输入线路连接的隔断或导通的芯片。
  3. 根据权利要求2所述的烧录系统，其中，所述可控开关包括：
    供电电压管脚，连接在所述时序控制器的外部输入/输出接口供电电压输入端，用于为所述可控开关供电；
    两个输入管脚，与所述烧录器相连；
    两个输出管脚，与所述时序控制器的供电控制管脚相连；
    两个控制管脚，连接在所述时序控制器的外部输入/输出接口供电电压输入端，用于根据所述时序控制器的外部输入/输出接口供电电压控制第一输入管脚与第一输出管脚之间的隔断或导通，以及第二输入管脚与第二输出管脚之间的隔断或导通。
  4. 根据权利要求3所述的烧录系统，其中，所述烧录器包括接口控制器，所述接口控制器包括两个信号输出管脚，所述可控开关的两个输入管脚分别与所述两个信号输出管脚相连。
  5. 根据权利要求4所述的烧录系统，其中，所述控制管脚具体用于在没有接收到所述时序控制器的外部输入/输出接口供电电压时，分别隔断所述第一输入管脚与所述第一输出管脚、所述第二输入管脚与所述第二输出管脚；以及在接收到所述时序控制器的外部输入/输出接口供电电压时，分别导通所述第一输入管脚与所述第一输出管脚、所述第二输入管脚与所述第二输出管脚。
  6. 根据权利要求5所述的烧录系统，其中，在所述第一输入管脚与所述第一输出管脚导通、所述第二输入管脚与所述第二输出管脚导通时，所述接口控制器的两个信号输出管脚输出的信号分别经由所述第一输出管脚和所述第二输出管脚到达所述时序控制器的供电控制管脚。
  7. 根据权利要求1所述的烧录系统，其中，所述时序控制器的外部输入/输出接口供电电压为3.3V。
  8. 根据权利要求1所述的烧录系统，其中，还包括电压转换电路，用于将输入电压分别转换为所述时序控制器的内核供电电压、DDR内存供电电压和外部输入/输出接口供电电压。
  9. 一种烧录方法，应用于一种烧录系统，所述烧录系统包括：烧录器、时序控制器以及连接在所述烧录器与所述时序控制器的外部输入/输出接口供电电压输入线路之间的可控开关，所述烧录方法包括：
    在外部输入/输出接口供电电压输入至时序控制器之前，可控开关隔断烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接；
    在外部输入/输出接口供电电压输入至时序控制器之后，可控开关导通烧录器与时序控制器的外部输入/输出接口供电电压输入线路的连接。
  10. 根据权利要求9所述的烧录方法，其中，所述可控开关包括与所述烧录器相连的两个输入管脚、与时序控制器的供电控制管脚相连的两个输出管脚以及连接在时序控制器的外部输入/输出接口供电电压输入端的两个控制管脚；
    所述控制管脚在没有接收到时序控制器的外部输入/输出接口供电电压时，分别隔断第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚；以及在接收到时序控制器的外部输入/输出接口供电电压时，分别导通第一输入管脚与第一输出管脚、第二输入管脚与第二输出管脚。
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