200821794 九、發明說明： 【發明所屬之技術領域】 本發明係關於電腦系統，尤指一種電腦系統利用主機 板的基本輸it{輸m的當前帥，定期更新主機板的基 板管理控制器的計時時間之方法者。 【先前技術】 按，所谓智慧型平台管理介面（Intelligentpia廿 Managonent interface，簡稱IpMI)，係一種開放標準的 硬體管理介面祕，用以定義内嵌的f理子祕進行通訊 的特定方法。且智慧型平台管理介面之資訊储由基板管 理才工制為（Baseboard Management Controller，簡稱 BMC) 進订父換。藉此，僅需使用低階的硬體管理而不透過作業 系、、先可具有兩個主要優點：其一 5此組態允許進行頻帶 外的伺服綠理；其二，作鮮、統不必貞麟齡統狀態 資料的工作。 而當電腦系統之基板管理控制器在初始化時，電腦系 、、充之基本輸入輸出系統（Basic【叩此/㈤她^加⑽， 以下簡稱BIOS)在開機自我測試（p〇wer 〇n Self 丁故， 簡稱POST)的初始化過程中，係可自電腦系統之一主機板 $即㈣鐘（Real—TimeC1QCk，以下簡稱rtc)中，取 得f前時間，並將當前時間傳輸到基板管理控制器上，基 板^控織根據當糾間，用蚊新基板管理控制器的 口十^間’㈤，基板f理控·在後續的使时，都以基 板官理控制ϋ所取得的計時時間，及配合内部之時脈 200821794 基板管理控制器的計時時間持續累積計時，以立 土板官理控制器的計時時間與主機板上即時時二 時間=’·然而，此種設計會衍生出下列之諸多問題田則 ，基板管理控繼在計時時職，即依基板管理 控制糾部之時脈錢進行計時，然， = :的_有可能與主機板上之即時時二 不相付’造絲板管理控制n的計時 時間有所差異，且此一差異隨著時間增加:而使 間與當前時·蘭來獻，並_ 叫 的準確性； 了事件鱗發生時間 其-，基板官理控制器可具有時間補償的功能，用以 在一段時間後，對基板管理控制器内部之計時時間，進行 調節補償’期使基板管理控制器可與當前時間相符，由 於，計時時_調節補償之值，係由製造廠商的工程師在 貫驗^中所統計而成，並不符合一般使用者之使用習慣及 使用ί衣境，況且’計時時間與當前時_時間誤差可能為 ，誤^或貞誤差’因此，倘若基㈣理控彻對正誤差進 行调節獅’之後，當基板管理控制器面對負誤差，卻有 以針對正誤差之觀值，進行如此，只會造成 基板管理控制器的計時時間越來越不準確； 其二’尚有製造廠商係在作業系統底下，使用系統管 理軟體（System Management s〇ftware，簡稱：撕)，設 定基板管理控制ϋ之計時時間，惟，由於不同的作業系 統’及不_製造廠商所設計駐機板，皆使用不同版本 200821794 的系統管理軟體，造成程式設計上的困擾，此# ^ 矛曰if'? 統管理軟體設定計時時間，亦容易產生同步誤差·及、 其四，基於維護系統管理軟體的成本的考量，並不a 母個使用者都會願意花錢去購買一個系統管理軟/戈者 使用者已經擁有了 一個系統管理軟體，但是此—系統^理 軟體並不具備同步更新基板管理控制器的計時時間^功 能。 故’如何設計出一種更新基板管理控制器之計時時間 之方法，期有效地解決上述之多問題，此乃刻不容緩而亟 待解決之一重大課題。 ^ 【發明内容】 有鑑於前述基板管理控制器及其電腦系統間之諸多 問題，發日狀乃經過長久努力研究與實驗，終於開發設計 出本發明的一種更新基板管理控制器之計時時間之方 法，期藉由本發明之設計，可讓基板管理控制器具有準確 之計時時間。 本發明之一目的，係提供一種更新基板管理控制器之 日^間之方法，係應用於—電腦系統中，當電腦系統之一主 钱板上之一管理單元，將主機板上之一即時時鐘所提供之 ’時間，傳輸到主機板上之—基板管理控制器上，以根 據當前時間更新基板管理控制器之計時時間；之後，電腦 系、、先母&經過一设定時間後，基板管理控制器便向管理單 =出-同步訊號，當管理單元接收朗步減時，將即 時時鐘所提供之當前時間傳輸到基板管理控制器上，用以 200821794 再次更新基板管 如此，基板管理控 理控制器之計時時間 == 有與输的當糊刪物間，㈣ 服ί、基板倾控㈣準確的計時時間的目的。 Ί之另-目的’電腦系統每當經過—設定時間 Ρ艮據同步訊號更新基板管理控制器之計時時間，用 以達到電腦純缝管理者手動更新計時時間的目的。 為便貴審查委員能對本發明的目的、技術特徵及其 功效，有更進-步的認識與瞭解，兹特舉實施例，並配合 圖式，詳細說明如下： 【實施方式】 按，本發明係-種更新基板管理控制器之計時時間之 方法’請第1圖所示，係應用在—電腦純2〇之主 機板30 (MotherBoard)及與主機板30電氣連接之一基板 官理控制器 80 (Baseboard Management Controller，以 下簡稱BMC)間。其中基板管理控制器8 〇每隔一設定時間， 即自主機板30上取得主機板30的當前時間，並更新基板 管理控制器80内所記錄的計時時間，如此，電腦系統2〇 在每次的設定時間都會將基板管理控制器洲的計時時 間，與主機板30的當前時間同步更新，用以達到保持基 板管理控制器80具有最準確之時間，且無須管理者手動 更新時間等目的。在本發明中，請參閱第2圖所示，電腦 系統20係依下列步驟進行處理： (101)主機板30之一基本輸入輸出系統（Basic input/Output System，簡稱 BIOS)) 40，自主 200821794 機板30之一即時時鐘（Real Time Clock，簡 稱RTC)) 50中取得當前時間（如：西元197〇 年01月01日00時00分00秒）； (102) 主機板30之一管理單元6〇 (如··智慧型平台 管理介面（I nte 11 i gent p 1 at form Management Interface,簡稱ipmi))自基本輸入輸出系統 40中取得當前時間，並依據管理單元6〇所設 之一時間轉換格式（Timestamp Format)，將 當前時間轉換成基板管理控制器8〇的可存取 的計時時間（如：0x00000000); (103) 管理單元60將計時時間封裝成一傳輸訊號 (如· IPMI MESSAGE)，再透過主機板3〇與基 板管理控制為80相連接之一傳輸通道7〇(如： 主機板所設之系統匯流排（System Bus)上之鍵 盤控制規格介面（Keyboard Controller Style Interface (KCS Interface))傳輸出去； (104) 基板管理控制器80自傳輸通道70，取得管理 單元60所輸出之傳輸訊號； (105) 基板管理控制器80解讀傳輸訊號取得計時時 間’並根據傳輸訊號所解讀的計時時間更新基 板管理控制器80目前的計時時間；及 (106 )管理早元60判斷是否自基板管理控制器gQ中 取得一同步訊號？若是，即依步驟（1〇1)進 行後續處理，否則，再依步驟（1〇6)重新進 10 200821794 行處理。 在本發明之一實施例中，，請參閱第1 _示，_ 單元60設有-第-傳輸端子65 (如：通用輸入輪出 (General Purpose I_t 0utput ’簡稱 Gpi〇)之腳位 (PIN))，而基板管理控制器80設有符合第一傳輸端子阳 之-第二傳輸端子85 (如：Gpi〇 piN)，第一傳輸端子阽 與第二傳輸端子85可相互電氣連接。f理單元⑼藉由偵 測第-傳輸端子65的電壓變化，判斷基板管理控制器別 之第二傳輸端子85所輸出電壓之變化 與高電壓_))，且謂徽魏，縣== 觸發事件（EVENT)或帽（如：祕管理情（加㈣ Management Interrupt ’簡稱SMI))來使用，而得以具有 -位兀之開關控制。故，在上述步驟（1Q4)中，管理單 元6〇即係透過第—傳輸端子65接收第二傳輸端子85所 輸出之電£之’^:化’用以判斷基板管理控制器⑼是否輸 出同步訊號（如：由低電壓⑽）升壓為高電壓（_)， 由高電壓（HIGH)降壓為低電壓⑽））。此外，時間轉 換格式係可將格林威治標準時間（GMT)自狀_年^ 月〇1日⑽k⑻分QG秒至西元21⑼年G1月01日〇〇 B寺 〇〇分⑽秒之時間，以___至0__之數值 表示X方便基板管理控制器、⑼内部進行低階運算。 u ί上所述’請參閱第1及3圖所示，電腦系統20之 =官器如在基板管理控制器⑽之計時時間被更 ’、* &理控彻8G產生同步訊賴步驟，包括·· 200821794 (201) 清除基板管理控制器80之一 t斷暫存器9〇内 所紀錄之計時數值（即中斷暫存器、9〇被初始 化）； (202) 依基板管理控制器80之一時脈產生單元肋所 產生之時脈信號，在中斷暫存器9〇内所紀錄 之計時數值逐一累加記數（count); (203) 判斷中斷暫存器90内所紀錄之計時數值，是 否荨於由使用者自行設定或廠商預設之一設 定時間（如·· 2小時）？若是，即依步驟（2〇4) 繼續進行處理；否則，再依步驟（2〇2)重新 進行處理； (204) 基板管理控制器80從第二傳輪端子肋發出同 步訊號到第一傳輸端子65，再依步驟（2〇1) 重新進行處理。 據上所述，當電腦系統20每次開機時，除會如同上 述的步驟（101)〜（105)更新基板管理控制器8〇之計時時間 外’電細糸統20母隔一設定時間，即會自動再次的更新 基板管理控制器80之計時時間，使得基板管理控制器8〇 之计時時間能夠更準確，解決了先前技術所發生的問題。 按，以上所述，僅為本發明的一具體實施例，惟本發 明的特徵並不侷限於此，任何熟悉該項技藝者在本發明領 域内，可輕易思及的變化或修飾，皆應涵蓋在以下本發明 的申睛專利範圍中。 【圖式簡單說明】 200821794 第1圖係本發明之一主機板與一基板管理控制器間之 連接示意圖； 第2圖係本發明中之動作流程圖； 第3圖係本發明中基板管理控制器發出同步訊號的動 作流程圖流程圖。 【主要元件符號說明】 20 主機板.......... …30 40 即時時鐘··……· …50 60 第傳輸端子… …65 70 基板管理控制器 …80 85 中斷暫存器…… …90 95 電腦糸統............ 管理單元....... 傳輸通道....... 第二傳輸端子· 時脈產生單元· 13200821794 IX. Description of the invention: [Technical field of the invention] The present invention relates to a computer system, and more particularly to a computer system that utilizes the basic input of a motherboard, and periodically updates the timing of the baseboard management controller of the motherboard. The method of time. [Prior Art] According to the so-called Intelligent Platform Management Interface (IpMI), it is an open standard hardware management interface secret, which is used to define the embedded method of communication. And the information storage of the intelligent platform management interface is changed by the Baseboard Management Controller (BMC). Therefore, only low-level hardware management is required, and the operating system is not used. First, there are two main advantages: one of the five configurations allows for out-of-band servo greening; the second is that it does not have to be used. The work of the unicorn age data. When the baseboard management controller of the computer system is initialized, the computer system is charged with the basic input/output system (Basic [叩/(五)她^加(10), hereinafter referred to as BIOS) at the boot self-test (p〇wer 〇n Self) In the initialization process of DST, referred to as POST, it is possible to obtain the pre-f time from one of the motherboards of the computer system, ie, Real-TimeC1QCk (hereinafter referred to as rtc), and transmit the current time to the baseboard management controller. On the substrate, the control is based on the timing of the correction, the use of the new substrate management controller of the mosquitoes, the control of the substrate, the control of the substrate, and the subsequent timing of the substrate control. And with the internal clock 200821794 The timing of the baseboard management controller continues to accumulate time, with the timing time of the slab official controller and the instant time on the motherboard = '· However, this design will derive the following Many problems in the field, the substrate management control in the timing of the time, that is, according to the timing of the substrate management control and correction of the timing of the money, then, = : _ may not match the real-time on the motherboard 'making Board management The timing of the system n is different, and this difference increases with time: the accuracy of the inter-current and current time, and the accuracy of the _ call; the event scale occurs when it is - the substrate management controller can The function of time compensation is used to adjust the compensation time of the internal time of the substrate management controller after a period of time, so that the substrate management controller can match the current time, because the value of the timing compensation is adjusted. It is calculated by the manufacturer's engineers in the inspection. It does not conform to the usage habits of the general users and the use of the environment. Moreover, the 'time and current time _ time error may be wrong or wrong'. If the base (four) is controlled to correct the error to adjust the lion', when the substrate management controller faces a negative error, but there is a value for the positive error, this will only cause the timing of the substrate management controller. More and more inaccurate; the second is that there are manufacturers under the operating system, using system management software (System Management s〇ftware, referred to as: tear), set the substrate management control The timing of the system, however, because different operating systems 'and not the manufacturer's design of the board, use different versions of the 200821794 system management software, causing programming problems, this # ^ spear if? The management software sets the timing time, and it is easy to generate synchronization error. And, based on the cost of maintaining the system management software, a parent user is willing to spend money to purchase a system management soft/go user. Already have a system management software, but this system security software does not have the time to update the baseboard management controller. Therefore, how to design a method for updating the timing of the substrate management controller to effectively solve the above problems effectively is one of the major issues that need to be solved urgently. ^ [Summary of the Invention] In view of the above problems between the substrate management controller and its computer system, it has been a long-term research and experiment, and finally developed a method for updating the timing of the substrate management controller of the present invention. With the design of the present invention, the substrate management controller can be accurately timed. An object of the present invention is to provide a method for updating a substrate management controller, which is applied to a computer system, when one of the computer systems is on one of the main money boards, one of the motherboards is immediately The 'time provided by the clock is transmitted to the baseboard management controller on the motherboard to update the timing of the baseboard management controller according to the current time; after that, after a set time, the computer system, the first mother & The baseboard management controller sends a management order=out-synchronization signal. When the management unit receives the step-down, the current time provided by the instant clock is transmitted to the baseboard management controller for updating the substrate tube for 200821794. The timing of the control controller == between the time of the loss and the deletion, (4) the service, the substrate control (4) the purpose of accurate timing. The other-purpose computer system passes the set time and updates the timing of the baseboard management controller according to the synchronization signal, so as to achieve the purpose of manually updating the time of the computer pure seam manager. For the purpose of the present invention, it is possible to further understand and understand the object, the technical features and the effects of the present invention. The embodiments and the drawings are described in detail as follows: [Embodiment] According to the present invention The method of updating the timing of the substrate management controller is shown in FIG. 1 , which is applied to the motherboard of the computer motherboard 30 (MotherBoard) and one of the substrate controllers electrically connected to the motherboard 30 . 80 (Baseboard Management Controller, hereinafter referred to as BMC). The substrate management controller 8 obtains the current time of the motherboard 30 from the motherboard 30 every other set time, and updates the time recorded in the substrate management controller 80. Thus, the computer system 2 The set time of the substrate management controller continent is updated synchronously with the current time of the motherboard 30 to achieve the most accurate time for maintaining the substrate management controller 80 without requiring the administrator to manually update the time. In the present invention, as shown in FIG. 2, the computer system 20 is processed according to the following steps: (101) A basic input/output system (BIOS) of the motherboard 30 (40), autonomous 200821794 The current time is obtained in one of the real time clocks (RTC) 50 of the board 30 (for example, 00:00:00 on January 01, 197, 1900); (102) one of the management boards of the motherboard 30 The current time is obtained from the basic input/output system 40, and is set according to one of the management unit 6〇(1). The conversion format (Timestamp Format) converts the current time into an accessible timing time of the baseboard management controller 8 (eg, 0x00000000); (103) the management unit 60 encapsulates the timing time into a transmission signal (eg, IPMI MESSAGE) And through the motherboard 3〇 and the substrate management control is connected to one of the transmission channels 7〇 (such as: the keyboard control specification interface on the system bus (System Bus) provided by the motherboard (Keyboard Controller Style Inte) Rface (KCS Interface)) is transmitted; (104) the baseboard management controller 80 obtains the transmission signal output by the management unit 60 from the transmission channel 70; (105) the baseboard management controller 80 interprets the transmission signal to obtain the timing time' and according to the transmission The timing time read by the signal updates the current timing of the substrate management controller 80; and (106) the management early 60 determines whether a synchronization signal is obtained from the substrate management controller gQ. If so, the step (1〇1) is performed. Subsequent processing, otherwise, according to the step (1〇6), re-enter 10 200821794 row processing. In an embodiment of the present invention, refer to the first _, _ unit 60 is provided with a -th transmission terminal 65 (such as : a universal input wheel (General Purpose I_t 0utput 'Gpi〇) pin (PIN)), and the baseboard management controller 80 is provided with a first transmission terminal male-second transmission terminal 85 (eg, Gpi〇piN) The first transmission terminal 阽 and the second transmission terminal 85 are electrically connected to each other. The unit (9) determines the output of the second transmission terminal 85 of the substrate management controller by detecting the voltage change of the first transmission terminal 65. The change is related to the high voltage _)), and it is said that the Wei, County == trigger event (EVENT) or cap (such as: Management Management (Additional Management Interrupt (SMI))) Switch control. Therefore, in the above step (1Q4), the management unit 6 receives the power output from the second transmission terminal 85 through the first transmission terminal 65 to determine whether the substrate management controller (9) outputs synchronization. The signal (eg, from low voltage (10)) is boosted to high voltage (_), which is stepped down from high voltage (HIGH) to low voltage (10)). In addition, the time conversion format can be used to divide Greenwich Mean Time (GMT) from _year ^ month 〇 1 (10) k (8) to QG seconds to 21 (9) years G1 month 01 〇〇 B temple minutes (10) seconds, The value of ___ to 0__ indicates that the X facilitates the substrate management controller and (9) performs low-order operations internally. u ί described above, please refer to the first and third figures, the computer system 20 = the official device is in the timing of the substrate management controller (10) is more ', * & control the 8G to generate the synchronization step, Including 200821794 (201) clearing the timing value recorded in one of the substrate management controllers 80 (ie, the interrupt register, 9〇 is initialized); (202) according to the substrate management controller 80 The clock signal generated by one of the clock generating unit ribs is counted one by one in the count value recorded in the interrupt register 9〇; (203) determining the timing value recorded in the interrupt register 90, Is it time to set the time (such as 2 hours) by one of the user's own settings or one of the factory presets? If yes, the processing is continued according to the step (2〇4); otherwise, the processing is resumed according to the step (2〇2); (204) the baseboard management controller 80 sends the synchronization signal from the second transmission terminal rib to the first transmission. Terminal 65 is reprocessed according to step (2〇1). According to the above, when the computer system 20 is turned on every time, except for the steps (101) to (105) of the above, the timing of the substrate management controller 8 is updated. That is, the timing of the substrate management controller 80 is automatically updated again, so that the timing of the substrate management controller 8 can be more accurate, and the problems occurring in the prior art are solved. According to the above, it is only a specific embodiment of the present invention, but the features of the present invention are not limited thereto, and any changes or modifications that can be easily considered by those skilled in the art in the field of the present invention should be It is covered by the scope of the invention of the present invention below. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the connection between a motherboard and a substrate management controller of the present invention; FIG. 2 is a flow chart of the operation of the present invention; and FIG. 3 is a substrate management control of the present invention. The flow chart of the action flow of the synchronous signal is sent. [Main component symbol description] 20 Motherboard..........30 30 Instant Clock··...·...50 60 Transmitter Terminal... ...65 70 Baseboard Management Controller...80 85 Interrupt Register ...... ...90 95 Computer System............ Management Unit....... Transmission Channel....... Second Transmission Terminal· Clock Generation Unit·13