200844755 九、發明說明·· 【發明所屬之技術領域】 本發明是有關於電腦周邊設備，特別是指USB設備之 組態設定方法及相關裝置。 【先前技術】 通用串列匯流排（Universal Serial Bus，以下簡稱USB) 是一種電腦周邊設備與電腦之間的連接介面，最多可以有 127個支援USB的設備同時透過電腦的一 USB根集線器 (USB root hub)及USB匯流排，提供隨插即用的各種服務。 一般來說，除了用來提供其主要功能之核心電路之外 ，USB設備通常還具有一控制單元及一儲存單元。該儲存 早凡用來儲存該U S B设備特有的產品貧訊，例如製造商識 別碼（Vender Identification，以下簡稱VID)、產品識別碼 (Product Identification，以下簡稱 PID)、及產品序號（seriai number)等。每一 USB設備皆具有獨特的產品資訊以供區別 〇 該控制單元可讀取該儲存單元儲存的產品資訊，並執 行USB匯流排的通信協定（protocol)。該USB設備被插接在 一電腦後’該電腦是依據該產品貪訊載入正確的驅動程式 並對該USB設備進行組態設定（configure)，例如指定一個 介於1〜127之間獨特的識別號碼給該USB設備，以使該 USB設備在USB匯流排上具有一個獨特的編號。首先，該 電腦開啟一裝置列舉（enumeration)的程序，之後該USB設 備以其特有之產品資訊進行裝置列舉，以傳送一個包含該 5 200844755 VID及該PID的描述元（descriptor)給該電腦，然後該電腦再 依據該VID及該PID找尋對應的驅動程式，並由該驅動程 式進行組態設定。 若是該電腦中沒有該USB設備的驅動程式，則該電腦 在其螢幕上顯示相關的提示訊息，例如對應該VID的製造 商名稱及對應該PID的設備名稱，以通知使用者載入該 USB設備的驅動程式。 為了在沒有電力提供的情形下永久保留該產品資訊、 並且為了使製造商保有於不同的情形下存入不同的產品資 訊之彈性，用來儲存產品資訊之該儲存單元經常是以例如 EEPROM的可程式化非揮發性記憶體(non-volatile memory) 製作，但是因為該EEPROM無法與該控制單元整合在單一 晶片中，且必須以一較大的電路板電性連接該EEPROM及 該控制單元，導致該USB設備整體的體積無法縮小。另外 ，該EEPROM也會增加成本。 再者，每一 USB設備的製造商為了使其生產的USB設 備皆儲存其特有的產品資訊，在製作的過程中必須以一燒 錄設備，逐一地燒錄產品資訊到每一 USB設備的EEPROM 中，如此將會減慢USB設備的生產速度，並且增加生產成 本0 【發明内容】 因此，本發明之一目的，即在提供一種USB設備之組 態設定方法，該方法可以省去燒錄EEPROM的製造程序。200844755 IX. INSTRUCTION DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a computer peripheral device, and more particularly to a configuration method and a related device of a USB device. [Prior Art] Universal Serial Bus (USB) is a connection interface between computer peripherals and computers. It can have up to 127 USB-enabled devices and simultaneously pass through a USB hub of the computer (USB). Root hub) and USB bus, providing plug-and-play services. In general, in addition to the core circuitry used to provide its primary functionality, USB devices typically have a control unit and a storage unit. The storage is used to store product-specific information specific to the USB device, such as Vender Identification (VID), Product Identification (PID), and serial number (seriai number). Wait. Each USB device has unique product information for differentiation. 〇 The control unit can read the product information stored in the storage unit and execute the communication protocol of the USB bus. After the USB device is plugged into a computer, the computer loads the correct driver according to the product and configures the USB device, for example, specifying a unique between 1 and 127. The identification number is given to the USB device such that the USB device has a unique number on the USB bus. First, the computer starts a device enumeration program, and then the USB device performs device enumeration with its unique product information to transmit a description element containing the 5 200844755 VID and the PID to the computer, and then The computer then searches for the corresponding driver according to the VID and the PID, and the configuration is configured by the driver. If there is no driver for the USB device in the computer, the computer displays a related prompt message on the screen, such as the name of the manufacturer corresponding to the VID and the name of the device corresponding to the PID, to notify the user to load the USB device. Driver. In order to permanently retain the product information in the absence of power supply, and in order to allow the manufacturer to retain the flexibility of different product information under different circumstances, the storage unit for storing product information is often EEPROM-like. Stylized non-volatile memory, but because the EEPROM cannot be integrated into the single chip with the control unit, and the EEPROM and the control unit must be electrically connected to a larger circuit board, resulting in The overall size of the USB device cannot be reduced. In addition, the EEPROM will also increase the cost. In addition, each USB device manufacturer must store its unique product information in order to make its USB device. In the process of production, it must burn the product information to the EEPROM of each USB device one by one. In this way, the production speed of the USB device will be slowed down, and the production cost will be increased. [Invention] Therefore, it is an object of the present invention to provide a configuration method for setting a USB device, which can eliminate the need to burn the EEPROM. Manufacturing process.
本發明的另一目的，即在提供一種USB設備，該USB 6 200844755 設備不需使用非揮發性的EEPROM，以節省製造成本。 於是，本發明組態設定方法是包含以下步驟：於一 USB設備中預設一第一產品資訊；於一主機中對該USB設 備進行一第一次列舉程序，以依照該第一產品資訊選取一 驅動程序；於該主機中搜尋一第二產品資訊；將該第二產 品資訊儲存至該USB設備中；以及利用儲存於該USB設備 中之該第二產品資訊，進行一第二次列舉程序。 而本發明之USB設備包含：一儲存裝置，儲存一預設 的產品資訊；及一 USB控制電路，將該儲存裝置儲存的該 預設的產品資訊傳給一電腦，且接收該電腦傳來的一客製 化的產品資訊並以該客製化的產品資訊向該電腦進行裝置 列舉以完成組態設定。 而本發明之電腦包含：一儲存裝置，儲存至少一 USB 設備客製化的產品資訊；及一中央處理單元，接收該USB 設備傳來的一預設產品資訊，並搜尋該儲存裝置以找到與 該USB設備對應的客製化產品資訊且傳給該USB設備，並 開啟該USB設備以該客製化的產品資訊進行裝置列舉的程 序，以設定該USB設備的組態。 而本發明之電子系統是包含上述USB設備及電腦。 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之實施例的詳細說明中，將可清楚的呈 現0Another object of the present invention is to provide a USB device that does not require the use of a non-volatile EEPROM to save manufacturing costs. Therefore, the configuration setting method of the present invention includes the steps of: presetting a first product information in a USB device; performing a first enumeration process on the USB device in a host to select according to the first product information. a driver; searching for a second product information in the host; storing the second product information in the USB device; and performing a second enumeration process by using the second product information stored in the USB device . The USB device of the present invention comprises: a storage device for storing a preset product information; and a USB control circuit, transmitting the preset product information stored by the storage device to a computer, and receiving the computer A customized product information is used to enumerate the computer with the customized product information to complete the configuration settings. The computer of the present invention comprises: a storage device that stores at least one customized product information of the USB device; and a central processing unit that receives a preset product information transmitted from the USB device and searches for the storage device to find and The customized product information corresponding to the USB device is transmitted to the USB device, and the USB device is turned on to program the device listed by the customized product information to set the configuration of the USB device. The electronic system of the present invention comprises the above USB device and computer. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will become apparent in the following detailed description of embodiments with reference to the drawings.
參閱圖1，本發明一種電子系統之實施例包含一 USB 200844755 設備1和一電腦2。 該USB設備1包括一 USB控制電路11、一第一儲存裝 置12、及一第一 USB介面模組13，該USB控制電路11係 用來控制該USB設備1透過USB介面與主機電腦2連繫之 相關操作，該第一儲存裝置12係用來儲存由電腦2端所傳 送過來的產品資訊並儲存有預設（default)的產品資訊，而 該第一 USB介面模組13則用來透過一 USB介面與電腦2 端連結，以相互傳遞.資料，在此與習知技術不同的是，第 一儲存裝置12並不需要以製造成本較高的非揮發性記憶體 來實現，而可以採用能夠與其他電路製造於單一積體電路 中之暫存器（register)或是RAM等方式來實現。 熟習此項技術的人應可理解，上述USB控制電路11及 第一 USB介面模組13等構成元件，其一部份或全部均可選 擇以專用硬體電路（dedicated hardware circuit )或是以通 用處理器（general purpose processor)配合軔體程式碼（ firmware program code)的方式來實現。該USB設備1可 以是任何以USB介面與主機電腦2相互溝通的周邊裝置， 例如印表機、掃描機、多功能事務機、數位相機、儲存裝 置如隨身碟（flash disk)、硬碟、光碟機等等，或是其他裝 置，均包含在内。當然，除了如前所述、與USB傳輸相關 之各個組成元件之外，USB設備1亦會包含有提供其主要 功能（如列印、影像擷取、儲存等）相關之電路及組件， 然而由於這些部份與本發明並無直接關連，故將不在此贊 述0 200844755 而該電腦2 —般而言包括一中央處理單元（center processing unit，CPU)21、一 第二儲存裝置 22 及一第二 USB介面模組23。當然，該電腦2通常亦包含有許多其他 組成元件，但是由於這些組成元件係為熟習此項技術的人 所廣泛知悉者，且與本發明並無直接關連，故不在此贅述 。該USB設備1的第一 USB介面模組13和該電腦2的第 二USB介面模組23彼此間係透過一 USB介面相互連結， 以用來傳遞資料。如熟習USB技術領域的人所廣泛知悉者 ，此一 USB介面可以有線的形式存在，例如以一纜線連接 ，而最近在技術上的發展與突破，更使得以無線的方式構 成USB介面成為可能，例如配合無線超寬頻（ultra wide band)的技術來實施。 該電腦2的第二儲存裝置22是一般電腦2系統中常見 的非揮發性儲存裝置，並儲存USB設備1所使用的客製化 (customized )產品資訊，這些客製化產品資訊可以暫存器 表（register table)或是文件槽（text file)的方式儲存在第 二儲存裝置22中。且為了防止該客製化的產品資訊遭到破 壞，在本發明之實施例中，該客製化的產品資訊是經過數 位簽名或是其他的方式編碼後才儲存於該第二儲存裝置22 。而該第二儲存裝置22可為硬碟或是BIOS CMOS，但不以 這些為限。 請參閱圖2，其係顯示該電子系統的組態設定方法，其 包含有以下步驟：首先，當USB設備1插接到一電腦2時 、或是當電腦2在插設有該USB設備1的狀態下啟動電源 200844755 時（步驟51)，該電腦2會偵測到該USB設備1的存在， 而開始第一次的列舉程序（enumeration )，由於1!86介面規 格中所制定的列舉程序係屬熟習此項技術的人所廣泛知悉 者，故其細節將不在此贅述。經過列舉程序之後，電腦2 會取得USB設備1中所預設（default)的VID、PID、或其 他產品資訊，並且會依照VID/PID等資訊，選取與其匹配 的USB設備1驅動程序（driver )(步驟52 )。 於本實施例中，上述USB設備1驅動程序會在經選取 之後，即進行搜尋於電腦2中所儲存之客製化產品資訊， 例如搜尋儲存於硬碟或BIOS CMOS中之文字檔或暫存表， 以得到符合所接收到之產品資訊的新的VID/PID (步驟53 ) 。在找到新的VID/PID之後，驅動程序更會驗證其正確性 及完整性（步驟54 )，並將新的VID/PID透過USB介面傳 送至USB設備1端，儲存於第一儲存裝置12例如暫存器或 RAM當中（步驟55)。接下來，驅動程序則會對USB設備 1進行重設（reset)(步驟56)，如此該電腦2即可在無需 將USB設備1重新拔下再插上的情形下，利用於先前步驟 中已儲存在第一儲存裝置12中之新的VID/PID，進行第二 次的列舉程序（步驟57)。 綜合上述，本發明之較佳實施例透過驅動程序使不同 的USB設備1分別具有客製化的產品資訊，相較於習知必 須利用USB設備之EEPROM儲存客製化的產品資訊，可以 省去EEPROM的成本及燒錄EEPROM的製造程序，且省去 EEPROM也可以使USB設備1整體的體積更進一步的縮小 10 200844755 ’因此確實可以達到本發明的目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 咸以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本發明電子系統之實施例的電路方塊圖。 目2是本發明組態設定方法之實施例的一流程圖。 11 200844755 【主要元件符號說明】 1…… ••…USB設備 21 · ........中央處理單元 11 ····. …..USB控制電路 22· •……第二儲存裝置 12···. ••…第一儲存裝置 23· .......•第二USB介面模 13·.·. ••…第一 USB介面模 組 組 5L· “57····步驟 2........電腦Referring to FIG. 1, an embodiment of an electronic system of the present invention includes a USB 200844755 device 1 and a computer 2. The USB device 1 includes a USB control circuit 11, a first storage device 12, and a first USB interface module 13. The USB control circuit 11 is used to control the USB device 1 to communicate with the host computer 2 through the USB interface. In the related operation, the first storage device 12 is configured to store product information transmitted by the computer 2 and store the default product information, and the first USB interface module 13 is used to transmit a The USB interface is connected to the computer 2 end to transmit data to each other. Unlike the prior art, the first storage device 12 does not need to be implemented in a non-volatile memory with high manufacturing cost, but can be implemented. It is implemented by means of a register or a RAM in which other circuits are fabricated in a single integrated circuit. Those skilled in the art should understand that some or all of the components such as the USB control circuit 11 and the first USB interface module 13 may be selected as dedicated hardware circuits or universal. The general purpose processor is implemented in conjunction with the firmware program code. The USB device 1 can be any peripheral device that communicates with the host computer 2 via a USB interface, such as a printer, a scanner, a multifunction printer, a digital camera, a storage device such as a flash disk, a hard disk, or a compact disc. Machines, etc., or other devices are included. Of course, in addition to the various components related to USB transmission as described above, the USB device 1 also includes circuits and components related to providing its main functions (such as printing, image capture, storage, etc.), however These parts are not directly related to the present invention, and therefore will not be referred to herein as 0 200844755 and the computer 2 generally includes a central processing unit (CPU) 21, a second storage device 22 and a first Two USB interface modules 23. Of course, the computer 2 usually also includes many other components, but since these components are widely known to those skilled in the art and are not directly related to the present invention, they are not described herein. The first USB interface module 13 of the USB device 1 and the second USB interface module 23 of the computer 2 are connected to each other through a USB interface for transferring data. As is well known to those skilled in the art of USB technology, this USB interface can exist in a wired form, for example, by a cable connection, and recent technological developments and breakthroughs have made it possible to form a USB interface wirelessly. For example, it is implemented with a technology of wireless ultra wide band. The second storage device 22 of the computer 2 is a non-volatile storage device commonly used in a general computer 2 system, and stores customized product information used by the USB device 1. The customized product information can be stored in a register. The manner of a register table or a text file is stored in the second storage device 22. In order to prevent the customized product information from being damaged, in the embodiment of the present invention, the customized product information is stored in the second storage device 22 after being digitally signed or otherwise encoded. The second storage device 22 can be a hard disk or a BIOS CMOS, but is not limited thereto. Please refer to FIG. 2, which shows a configuration setting method of the electronic system, which includes the following steps: First, when the USB device 1 is plugged into a computer 2, or when the computer 2 is plugged into the USB device 1 When the power supply 200844755 is started (step 51), the computer 2 detects the presence of the USB device 1, and starts the first enumeration procedure, due to the enumeration procedure established in the 1!86 interface specification. It is widely known to those skilled in the art, so the details will not be described here. After enumerating the program, the computer 2 will obtain the default VID, PID, or other product information in the USB device 1, and will select the USB device driver (driver) that matches it according to the VID/PID information. (Step 52). In this embodiment, the USB device 1 driver may search for customized product information stored in the computer 2 after being selected, for example, searching for a text file or temporary storage stored in a hard disk or a BIOS CMOS. Table to obtain a new VID/PID that matches the received product information (step 53). After finding the new VID/PID, the driver will verify its correctness and integrity (step 54), and transfer the new VID/PID to the USB device 1 through the USB interface, and store it in the first storage device 12, for example. In the scratchpad or RAM (step 55). Next, the driver resets the USB device 1 (step 56), so that the computer 2 can be utilized in the previous step without re-plugging the USB device 1 and plugging it in again. The new VID/PID stored in the first storage device 12 is subjected to a second enumeration procedure (step 57). In summary, the preferred embodiment of the present invention allows the different USB devices 1 to have customized product information through the driver, which can be omitted by using the EEPROM of the USB device to store customized product information. The cost of the EEPROM and the manufacturing procedure for programming the EEPROM, and the elimination of the EEPROM can also further reduce the overall size of the USB device 1 10 200844755 'Therefore, the object of the present invention can be achieved. However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made by the scope of the present invention and the description of the invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a circuit block diagram of an embodiment of an electronic system of the present invention. 2 is a flow chart of an embodiment of the configuration setting method of the present invention. 11 200844755 [Description of main component symbols] 1... ••...USB device 21 · ........ central processing unit 11 ····.....USB control circuit 22·.........second storage device 12···. ••...first storage device 23· .......•second USB interface module 13·.·.••...first USB interface module group 5L· “57···· Step 2........computer
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