TWI299452B - 1 to multiple usb-disk data copy system - Google Patents

Description

1299452

, I IX, invention description: [Technical field of the invention] This device is a device that can be used for USB-based main chip sets and singles. Crystal microprocessor, Qingji and RS-485 serial interface to achieve the function of copying data from multi-cavette disk. ...~ [Previous technology] The accompaniment of the Japanese _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Because of the popularity of brain pens or coffee, it is almost a human hand. In order to format the media storage device or to copy the fixed song or the translation of the f (four) material, the pass f is a step of inserting the skirt, copying the 'copy' and extracting the device through the pc host. If only the - desk - USB flash drive operation and installation is relatively simple, but to copy and operate multiple _ flash drives at the same time can be imagined to take a long time. Therefore, there is a need for a device that can copy the contents of a USB disk's file or voice file to a plurality of USB flash drives that have not yet been formatted by Flash Mem〇ry without having to use the pC host. This process involves formatting the USB drive, creating a file management system, and copying the building. Of course, if it is a one-to-one copy, it will not only take time to make it easier to wear and burden the test machine. SUMMARY OF THE INVENTION The main object of the present invention is to provide a function of one-to-many USB disk poor material copy through a USB main chip set and a single crystal microprocessor, a USB hub and an RS-485 serial interface. The present invention can be applied to the 1299452 consumer electronics industry and the PC peripheral industry of the USB flash drive or the MP3 player, in addition to providing fast copying and formatting functions, and extending and accelerating the industry-related extension technology. • The main structure of the present invention includes a single crystal microprocessor; a universal serial bus • USB (USB) main interface chip set, the universal serial bus (USB) main interface chip set and the single crystal The microprocessor constitutes a universal serial bus (USB) host; a flash memory Flash memory; - a universal serial port (USB) hub capable of connecting at least two universal serial bus (USB) drives A series of interfaces; and a * input link for USB disk insertion of data sources. [Embodiment] Please refer to Figure 1, the main technical feature of the present invention is to provide a one-to-many-copy universal serial bus (USB) device, the basic structure of which includes a single crystal micro a processor (11); a universal serial port bus (USB) main interface chip set (12), the universal serial port bus (USB) main interface chip set (12) and the single crystal microprocessor (11) A universal serial bus® (job) host; a flash memory Flash memory (13); a universal serial bus (USB) hub that can connect at least two universal serial bus (USB) drives (H); a serial interface (15); and an input link (not shown) for USB disk insertion from a data source. Referring to FIG. 1 again, the present invention further extends the device design of the universal serial serial port (USB) disk drive through the network to realize the architecture of the system function. 6 1299452 is as shown in FIG. The entire system includes a main module (10) and at least one slave module (20). The main module (10) comprises a single crystal microprocessor (11), a USB main chip set (10), a flash memory FiashM delete ry (13), an RS-485 serial interface (15), and - The input source of the data source can be inserted into the disk (not shown), and in the preferred implementation, the main module can further include a hub (4), so that the main module has - For multi-copy • USB add-on function. The slave module (10) comprises a single crystal microprocessor (9) (10) main chip set (22), - flash memory - Mem〇iy (23), _ rs, serial interface (25), and - USB hub (24) . Among them, the Cong main wafer planted by the present invention is used for simulating the disk of the 眺 'F"h OSB, industry machine (4) format and data. USB hub _ (24 empty disk drive (9) to be copied (as shown in Figure 1, it means that the expansion is based on the specifications of the Cong Hub, basically, it can be divided into "J 峪逑 connection mode. Therefore, this creation The i shell can be up to 33x7=: + s USB disk copy work. In addition, this copy of the second or 疋33x 4:132 group of coffee drives with USB disk. The A to be copied by the geo-sensitive one - the main 32 slave node network 7 1299452 mode, not only the transmission speed can reach 10Mbps, and the differential interface transmission can greatly reduce the noise source. 'Design focus of related components - description As follows: - (1) USB host: This part is connected to a USB main chip set (SL811HS, Cypress) (12) (22) with an 8051 early crystal microprocessor (11) (21) to implement a virtual USB host. The function of the spring and Duyun USB host is mainly the USB Mass Storage group and the USB rate line group. The USB hub (an upstream port and four downstream ports) can be connected to 4 modules. Expanded USB drive and copy the data of the USB drive (3(7)) to be copied Bay to these 4 blank USB disk drives (9) to be formatted and copied. This usb, flash drive and hub are in compliance with USB1.1/USB2.0 specifications. The related circuit diagram is shown in Figure 2, 8051 single crystal microprocessor. The peripheral circuit diagram of (10) 21) is shown in the circuit diagram of Figure 3 'Main chip group SL811HS (12) (22) and viewing single crystal microprocessor (1)) (21). (2) RS-485 node network: due to RS -485 is developed from RS-422, so many electrical regulations of RS 485 are similar to RS-422. For example, balanced transmission is used, and all the terminals need to be connected to the transmission line. However, RS_485 can be used. Up to % of the twister pairs can be shared on the same multipoint network. In addition, the common mode voltage (Vcm) range of the driver and receiver can be expanded to between +12 and 7v. 8 1299452 In addition, 'RS -485 can be connected by two-wire and four-wire. In the two-wire connection mode, it should be noted that the transmission line is terminated at both ends of the entire wiring, instead of being cut off at the connection point in the middle of the wiring. Terminating resistors should only be used at high data rates and long In addition, in the 85 system (4) signal grounding wire must also maintain a total of electric bunker perimeter and must be accepted in the _7 to the range on the drive. When using a four-wire connection, and RS_422- It can only achieve point-to-multiple communication, that is, only _ 匕 匕 has 4 lords. Also prepared for 'the rest is a slave device. But its improved features make it possible to use either four-wire or two-wire 1 €. You can connect up to 32 on the busbar. Among them, four data lines and an additional signal ground line are used in the four-wire connection. This network connection allows the master device to communicate with all slave nodes. All slave nodes also communicate only with this master node. RS-485, like RS-422, has a maximum transmission distance of about 4 inches (1219 meters). The maximum transmission rate is l〇Mb/s. In addition, rs-485 requires 2 terminating resistors, and its resistance value should be cast to transmit Wei Yangling anti-wear. In the short-distance transfer to the village, the terminal resistance is required, that is, the terminal resistance is not required below 300 meters. The terminating resistor is connected to both ends of the transmission bus. However, the general 8051 single crystal microprocessor only has the RS_232 serial interface (as shown in Figure 2). In order to convert to the RS-485 interface, it is necessary to convert the Ic through the interface or a dedicated IC. As shown in Figure 4, it is a circuit diagram for RS-232 conversion RS-485 conversion. Basically, there are quite a few types of RS-485 conversion 1C, and various chipset manufacturers have also introduced 1C for specific functions. Among them, the most commonly used are SN75179B and SN75176B (Texas

Instruments)' The difference is that the former is a general-purpose full-duplex driver/receiver, and the latter is a pan- 9 1299452 type single- and dual-i transceiver. Since we only need to simply copy the main device's listening to the slave device. Therefore, the single-duplex SN75176B 1C is used here. In Figure 4, this simple conversion circuit uses three RS-232 signal lines, _ in which contains TD transmission data, RD reception data, and rTS control selection. It can be seen from the figure that the MAX232 1C trusts the RS432 to touch the TTL level, and then connects the TTL 仏遽 to the 751·chipset to provide an RS_485 interface circuit. The operation of the entire Lu circuit is that when the RTS is low, the enabled input pin is still potential, then the TD can transmit signals to the Rs_485 connection circuit. When the rts is at a potential, the 75176B's enable input pin is low, so the RD can receive the signal from the RS-485 connection circuit. As shown in Figure 5, the RS-485 two-wire wiring method can realize the multi-point two-way communication diagram. In order to achieve the function of 1 pair of NUSB disk data copy. The present invention is an i-to-multi USB USB disk copy system. For ease of assembly and testing, we will use four usb disks as a module, similar to the architecture of a USB hub HUB. Among them, there is one main module and 24 slave modules. The size of the female module is approximately 80 mm X 80 mm X 50 mm (length X width x height). Therefore, the overall architecture is shown in Figure 6 below. The entire system consists of 25 modules, a total of 100 USB disks. The actual size is expected to be 45〇 mm χ 200 mm x 35〇 mm. Please refer to Figure 1 and Figure 6. In the system test implementation, we first insert the 128MB USB disk drive (30) containing 48MB MP3 data (MP3 song) into the main module 10 1299452

On the group (Master DeviceXlO), then read the MP3 data in the USB drive (30) through the USB Mass Storage C丨ass format and copy it to the flash memory Hash first.

Inside Mern〇ry (13). And through the control of the USB hub (14), it is possible to control four USB disk drives (31) to be copied, and copy the data in order. After copying the four USB disk drives (9) connected to the main module (10), the s_485 serial interface (10) is sequentially copied to the USB disk drive (31) of the connected 24 slave modules (10). . According to FIG. 6, the user can connect different numbers of singular groups (2_ and different numbers of USB disks according to actual needs). The above description is only one possible embodiment of the present invention, and is not intended to be limited. The scope of the present invention is to be construed as being included in the scope of the present invention in accordance with the contents, features and spirit of the invention as set forth in the following claims. In summary, the present invention Specifically defined in the technical characteristics of the scope of application for patents, it is not seen in the same kind of technology and is novel, and it is more advanced than the prior art, and can be used for the industry to fully appeal, has been painful (10), New Zealand, please The 钧 核 核 核 核 核 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Peripheral circuit schematic;

Figure 3 is a circuit diagram of the SL811HS and the coffee crystal single crystal connected to the I = four is the same as the 232 (four) mediated RS _ _ circuit diagram 5 is the invention Rs_485 two-line " The fly wiring method is used to realize the multi-point two-way communication 1294452; and FIG. 6 is a schematic diagram of the 1-to-100 USB disk data copy system of the present invention. [Main component symbol description] (10) Main module (12) (22) Main chip set (14) (24) Hub (20) Slave module (11) (21) Single crystal microprocessor (13) (23 ) Flash memory (15) (25) serial interface (30) (31) disk drive

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Claims (1)

1299452 X. Patent application scope: 1. - One-to-many universal serial convergence (10) disk copy device, including: a single crystal microprocessor; (10)) binding surface crystal H Wei Cai Material (10)) The main interface chipset and the single crystal microprocessor form a universal serial confluence (_host, used to read the escrow flow (10)) disk drive, which is difficult to find a (USB) host function; • Flash memory Flash this port, which is connected to the scale chipset for temporarily storing the file format and data of the universal serial port (USB) disk drive; At least two universal serial confluence ports (10)) a general-purpose serial confluence (10) hub of the disk drive, which is in communication with the main interface chip set for connecting and expanding an empty serial confluence (USB) magnetic to be copied. a serial interface that communicates with the main interface chipset for network connection; and an input interface for USB source insertion of a negative source, which is connected to the main interface 'The serial bus (10) for a source of data) is plugged into the disk drive. Day 2 - a one-to-many universal serial bus (10) B) disk copy device, comprising: a main module, the main module includes: a first single crystal microprocessor; - the first - universal Serial bus _SB) main interface chip set, the first universal serial bus (USB) main interface chip set and the first-single crystal micro-processing serial--------------- To read the universal serial port (10) B) disk drive to simulate the function of a first universal serial bus (USB) host; 13 1299452 a first flash memory Flash Memory, and the first master The interface chipset is connected to temporarily store the file format and data of the universal serial port (USB) disk drive; a first $column interface is connected to the first main interface chipset for network connection And a first input port for USB disk insertion of the data source, which is connected to the first main interface chip set for plugging in a serial source (USB) disk drive of a data source And the slave module connected to the main module of the 5H, the slave module includes: a younger brother and an early crystal micro a second communication chip (USB) main interface chip set, the second_serial bus (USB) main interface chip set and the second single crystal microprocessor - the second universal bus (USB) host; - a second flash memory Flash MemQry, which is in communication with the second main interface chipset 'used to temporarily store the touch (four) ship scale (10)) format and information. And - can connect at least two Tongkelong material (10)B) disk drive (4) 'column flow bee (10)) line H, which is connected with the second main interface chip set for the serial source of the serial port (USB) disk drive Pick up. Μ 3. The USB disk copying device as described in claim 2, wherein the progress includes - can connect at least two universal serial convergence sinks (USB disk universal serial port bus (USB) hub. J Brothers 1 4. For the disk copying device described in claim 1 or 2, the hub can be connected to 4 or 7 USB disk drives. ^ 'The USB 1299452 η 1 Τ ^ 祖拳面 I 5 · As described in the scope of patent application No. 2 or 2, the Cong-disc ^ '~ two] The column interface is _string_, _丨_32彳__ mode. The string is as shown in the patent file scope 1 or 2 of the USB disc copy. The hub can be connected to a 4_disk drive. The serial interface - gamma (four), face _ USB disk copy device can simultaneously copy up to 132 disk drives. 7. The USB disk copying device according to item i or item 2 of the patent application scope, the intermediate medium=line device can be connected to 7 old_machines, and the serial interface is Rs is a serial interface=partial disk copy The device can simultaneously copy up to 231 Cong magnetic Μ 8 · The USB disk copy device as described in claim 1 or 2, wherein ^ conforms to the general (4) shouting large-capacity domain (10) B Mass StQ zero) The USB disk copying device as described in claim 1 or 2, wherein the serial interface may be a Internet serial interface with a network protocol or (10) a Bus serial interface. The US_disc copying device described in 2, wherein the solution is a microprocessor with RS-232 serial _ _ * 曰曰曰 microprocessor, = RS-232 serial interface through a conversion 1C conversion Connect to the Rs_485 serial interface. The USB disk copying device of claim 10, wherein the conversion 1C is a full duplex driver/receiver. The USB disk copying device of claim 10, wherein the conversion 1C is a single-duplex transceiver. People' 15