1297116 九、發明說明： 【發明所屬之技術領威】 > 本發明涉及/種USB轉序列埠線纜更新裝置。 【先前技術】 電腦與外部設備之連接及訊號傳輸運用了多種介 面及訊號傳輸方式，這些介面及訊號傳輸方式可分別劃 歸兩種通訊協定：序列通訊協定與平行通訊協定。 序列通訊協定有很多種，例如RS232-C、RS-4851297116 IX. Description of the Invention: [Technical Leadership of the Invention] > The present invention relates to a USB-to-serial-sequence cable update device. [Prior Art] The connection between the computer and the external device and the signal transmission use a variety of interfaces and signal transmission methods. These interfaces and signal transmission methods can be divided into two communication protocols: serial communication protocol and parallel communication protocol. There are many types of serial communication protocols, such as RS232-C and RS-485.
及RS-422等，甚至現今流行之USB等都係序列通訊協 定。 RS232-C(又稱 EIARS232_C，以下簡稱 RS232)係在 由美國電子工業協會(EIA)聯合貝爾系統、數據 機f豕及電腦終端生産廠家共同制定之用於序列通訊 J!票i:,RS232係-個全雙工之通訊協定’它可以同時 ϊ Ίϋ收和發送之卫作。R s23 2之連接埠通常有兩 •針(DB9)和25針(DB25)，其中以DB9最爲常見。 幾年’隨著大量支援USB個人電腦之普及，USB S = 人電腦之標準介面。同時，傳統之RS232 i之讯供^系統中則越來越少見’於是對於使用RS232 特別係在不間斷電源系統（UPS)中就需要 .轉序列埠（RS232)線鐵來進行USB埠與 RS232埠之轉接。 去USB轉序列埠線纜不具有代碼更新功能，無 蔣爲更新’若要進行代碼更新’一種方法係 】 轉序列埠線纜中之晶片拆取下來做重新燒錄， 二雜且成本較高，另一種方法係透過電腦中之代 】，新，體進行代碼更新，此方法S要從外部向電腦中 私二理出一 12V高電平訊號以使其啓動代碼更新 軟體’以對USB轉序解、㈣進行代碼更新。And RS-422, etc., and even today's popular USB are serial communication protocols. RS232-C (also known as EIARS232_C, hereinafter referred to as RS232) is jointly developed by the American Electronics Industry Association (EIA) in conjunction with Bell Systems, data machines, and computer terminal manufacturers for serial communication J! Tickets i:, RS232 - A full-duplex communication protocol 'It can simultaneously collect and send the defense. The connection of R s23 2 usually has two needles (DB9) and 25 needles (DB25), of which DB9 is the most common. In the past few years, with the popularity of a large number of USB-enabled personal computers, USB S = the standard interface for human computers. At the same time, the traditional RS232 i is more and less rare in the system. Therefore, it is necessary to use RS232 in the uninterruptible power system (UPS). The serial port (RS232) wire is used for USB port. RS232 转接 transfer. Go to USB to serial cable, there is no code update function, no Jiang is updated, 'If you want to update the code', a method is used.] The wafer in the serial cable is removed and re-burned. The other method is to update the code through the generation in the computer. The new method is to update the software from the outside to the computer to enable it to start the code update software. The solution, (4) code update.
1297116 【發明内容】 鑒於以上内容，有必要提供一種USB轉序列埠線 纜更新裝置，以啓動電腦中之代碼更新軟體。 一種USB轉序列埠線纜更新裝置，包括一 RS232 埠和一電壓轉換電路，該RS232埠與該電壓轉換電路電 性連接，該RS232埠與一 USB轉序列埠線纜連接以獲 取來自一電腦USB埠之電壓訊號，該電壓轉換電路將 該電壓訊號轉換爲一高電平訊號並透過該RS232埠和 USB轉序列埠線纜傳輸至該電腦之中央處理器，使其啓 動一代碼更新軟體。 該USB轉序列埠線纜更新裝置，可以與USB轉序 列埠線纜之RS232埠連接，並産生一高電平訊號以啓動 一電腦之代碼更新軟體，方便了 USB轉序列埠線纜之 代碼更新工作。 【實施方式】 請參閱圖1，係本發明USB轉序列埠線纜更新裝置 較佳實施方式之電路圖，該USB轉序列埠線纜更新裝 置10包括RS232埠12及電壓轉換電路，該RS232埠 12與電壓轉換電路電性連接。 該RS232埠12爲一 DB9埠，其包括複數訊號引腳 1〜4、6、7和8以及兩電壓引腳5和9，本較佳實施方 式中使用該等訊號引腳6和7進行訊號傳輸，該電壓轉 換電路爲一 LTC1262型5V轉12V電壓轉換晶片14, 其包括一電壓輸入引腳VCC、一電壓輸出引腳Vout、 一接地引腳GND及一狀態引腳SHDN，該電壓轉換晶 片14之電壓輸出引腳Vout與該RS232埠12之訊號引 腳7連接，該電壓轉換晶片14之狀態引腳SHDN與該 RS232埠12之訊號引腳6連接，該電壓轉換晶片14之 狀態引腳SHDN還接地，該電壓轉換晶片14之電壓輸 1297116 日ϋRS232埠12之電壓引腳9連接，該 之電壓引^接地之接地引腳GND接地’該RS232埠 該RS232’ 12之電壓引腳9還透過發光二極體D1 接地。 t f序列埠線纜更新裝置10之RS232埠12 與一 USB轉序列埠線纜之RS232 痒與-電腦之USB:連接該= 轉序將從該RS232埠12訊號引腳6獲取之-?電：25傳？給一電腦中央處理器，使其進入更新模 二D1發光，顯示連接完成、更新工作 雷月:阜12之電壓引腳9透過該USB轉序列 =ί Li r之USB埠獲取一5v電壓，並將其傳輸 日片14之電壓輸人引腳vcc，該電壓轉 電壓轉換後由該電壓輸出引腳V-輸出 轉”，傳==中 新-代碼更新軟體，對™ 1種Ϊ施方式，在選用該RS232埠12之訊 行訊號傳輸時，該電壓轉換晶片14之 3、別^ Ι°Γ狀態引腳SHDN和電壓輸入引腳 VCC刀別對應與該訊號引腳 接，該則2蟑12之電壓引腳9接地及㈣引腳5連 綜上所述，本發明符合發明專利 專利申請。惟，以上所述者僅為 二/棱出 舉凡熟悉本案技藝之人士，在:實施例， 效修飾或變化，皆應涵蓋於 =3=神所作之等 【圖式簡單說明】 、下之申明專利乾圍内。 1297116 圖1係本發明USB轉序列埠線纜更新裝置較佳實施 方式之電路圖。 【主要元件符號說明】 USB轉序列埠線纜更新裝置10 訊號引腳 1〜4、6〜8 電壓引腳 5 ^ 9 電壓轉換晶片 14 電壓輸入引腳 VCC 電壓輸出引腳 Vout 接地引腳 GND 狀態引腳 SHDN 發光二極體 D1 RS232 埠 121297116 SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a USB serial-sequence cable update device for starting a code update software in a computer. A USB serial sequence cable update device includes an RS232 port and a voltage conversion circuit. The RS232 port is electrically connected to the voltage conversion circuit, and the RS232 port is connected with a USB serial cable to obtain a USB from a computer. The voltage signal of the voltage is converted into a high level signal and transmitted to the central processing unit of the computer through the RS232 and USB serial cable to enable a code update software. The USB serial sequence cable update device can be connected with the RS232 port of the USB serial cable and generate a high level signal to start a computer code update software, which facilitates the code update of the USB serial cable. jobs. [Embodiment] Please refer to FIG. 1 , which is a circuit diagram of a preferred embodiment of a USB serial sequence cable update device of the present invention. The USB serial sequence cable update device 10 includes an RS232 埠 12 and a voltage conversion circuit. The RS232 埠 12 It is electrically connected to the voltage conversion circuit. The RS232 埠 12 is a DB9 埠, which includes a plurality of signal pins 1 to 4, 6, 7, and 8 and two voltage pins 5 and 9. In the preferred embodiment, the signal pins 6 and 7 are used for signal transmission. Transmission, the voltage conversion circuit is an LTC1262 type 5V to 12V voltage conversion chip 14, which includes a voltage input pin VCC, a voltage output pin Vout, a ground pin GND and a state pin SHDN, the voltage conversion chip The voltage output pin Vout of 14 is connected to the signal pin 7 of the RS232埠12, and the state pin SHDN of the voltage conversion chip 14 is connected to the signal pin 6 of the RS232埠12, and the voltage conversion chip 14 is in the state pin. SHDN is also grounded, the voltage of the voltage conversion chip 14 is input 1297116 ϋ RS232 埠 12 voltage pin 9 is connected, the voltage is led to the grounding ground pin GND grounding 'the RS232 埠 the RS232' 12 voltage pin 9 also Grounded through LED D1. Tf sequence RS cable update device 10 RS232 埠 12 and a USB transfer sequence 埠 cable RS232 itch and - computer USB: connection = = will be obtained from the RS232 埠 12 signal pin 6 -? 25 pass? Give a computer central processor to enter the update mode 2 D1 illumination, display the connection completion, update the work lightning month: 阜12 voltage pin 9 through the USB transfer sequence = ί Li r USB 埠 to obtain a 5v voltage, and The voltage of the day 14 is transmitted to the pin vcc, and the voltage is converted to a voltage output pin V-output to be converted, and the code is updated by the software, and the software is applied to the TM. When the signal transmission of the RS232埠12 is selected, the voltage conversion chip 14 is connected to the signal pin, and the voltage input pin VDN is connected to the signal pin. 12 voltage pin 9 grounding and (four) pin 5 in summary, the present invention is in line with the invention patent application. However, the above description is only for the second person / person who is familiar with the art of the present invention, in the embodiment, The effect modification or change should be covered by =3=God's etc. [Simplified description of the drawing], and the following claims are in the patented enclosure. 1297116 FIG. 1 is a preferred embodiment of the USB serial sequence cable updating device of the present invention. Circuit diagram. [Main component symbol description] USB transfer sequence 埠 cable more New device 10 Signal pin 1~4, 6~8 Voltage pin 5^9 Voltage conversion chip 14 Voltage input pin VCC Voltage output pin Vout Ground pin GND Status pin SHDN LED Diode D1 RS232 埠 12