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Terminal equipment, reading and writing equipment, data transmission system and hardware initializing method

Active Publication Date: 2017-05-31
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a terminal device, a read-write device, a data transmission system, and a hardware initialization method to solve the problem of internal The data are unable to be read through the USB interface connection due to technical problems

Method used

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  • Terminal equipment, reading and writing equipment, data transmission system and hardware initializing method
  • Terminal equipment, reading and writing equipment, data transmission system and hardware initializing method
  • Terminal equipment, reading and writing equipment, data transmission system and hardware initializing method

Examples

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Embodiment 1

[0042] Figure 1a It is a structural diagram of a terminal device provided in Embodiment 1 of the present invention. The structure of the terminal device in this embodiment specifically includes:

[0043] A first universal serial bus interface 110, an uplink port 150, a downlink port 160, a switch 170, a first controller 140 and a first switch circuit 130;

[0044] The first universal serial bus interface 110 is used to connect with the universal serial bus interface of external equipment, and its signal pin is grounded; the upstream port 150 and the downstream port 160 are all connected to the first universal serial bus interface 110 by a switch 170 The data transmission end of the first switch circuit 130 is connected to the power supply pin of the first universal serial bus interface 110, and the second end of the first switch circuit 130 is connected to the on-off state through the switch 170. Input power, generally 5V system power, that is, System 5V;

[0045] The first ...

Embodiment 2

[0054] Embodiment 2 of the present invention provides a structural diagram of a terminal device. This embodiment is optimized on the basis of the above embodiments. In this embodiment, if figure 2 As shown, it also includes: a current limiting circuit 120, the first end of the current limiting circuit 120 is connected to the power supply pin of the first universal serial bus interface 110 (that is, the pin for outputting or accessing +5V), and the current limiting circuit 120 The third end of the first controller 140 is connected to the signal input end for outputting a signal 5V Det, and the second end of the current limiting circuit 120 is connected to the first end of the first switch circuit 130;

[0055] Further, the current limiting circuit 120 is optimized to: include a current limiting switch 180, a resistor R1 and a resistor R2; The pin is connected, and is used for outputting the supply voltage USB5V to the power supply pin of the first universal serial bus interfa...

Embodiment 3

[0062] Figure 3a A structural diagram of a read-write device provided in Embodiment 3 of the present invention, specifically including:

[0063] The second universal serial bus interface 230, the second controller 250, the trigger circuit 240, the second switch circuit 210 and the third switch circuit 220; the signal pin Signal_GND of the second universal serial bus interface 230 is connected to the trigger The detection terminal of the circuit 240 is connected, and the feedback terminal of the trigger circuit 240 is connected with the signal input terminal of the second controller 250. In this embodiment, the signal transmitted between the two is defined as Insert Det, which is specifically used for Describe the voltage state of the second universal serial bus interface 230 access;

[0064] The signal pin of the second universal serial bus interface 230 is used to be connected with the signal pin of the first universal serial bus interface 110; The data processing end of th...

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Abstract

The embodiment of the invention discloses terminal equipment, reading and writing equipment, a data transmission system and a hardware initializing method. Circuit devices such as a first universal serial bus interface, an uplink port, a downlink port, a switching switch, a first controller and a first switching circuit are configured in the terminal equipment, and circuit devices such as a second universal serial bus interface, a second controller, a trigger circuit, a second switching circuit and a third switching circuit are configured in the reading and writing equipment, so that after the terminal equipment is connected with the reading and writing equipment, the terminal equipment can be controlled by the reading and writing equipment through the first universal serial bus interface and the second universal serial bus interface, and the terminal equipment performs data transmission according to the command transmitted by the reading and writing equipment. According to the technical scheme of the embodiment of the invention, external equipment can actively read the internal data of equipment provided with the universal serial bus interface when the equipment provided with the universal serial bus interface is connected with the external equipment through the universal serial bus interface.

Description

technical field [0001] The embodiments of the present invention relate to data transmission technologies, and in particular to a terminal device, a read-write device, a data transmission system and a hardware initialization method. Background technique [0002] USB (Universal Serial Bus) is an external bus standard used to regulate the connection and communication between computers and external devices. Since its launch in 1996, USB has successfully replaced serial ports and parallel ports, and has become one of the must-have interfaces for personal computers and a large number of smart devices in the 21st century. [0003] With the popularity of the USB interface, more and more devices (for example: smart phones, tablets, etc.) will be equipped with the USB interface, and transmit data through the USB interface. When transmitting data through the USB interface, generally speaking, the device configured with the USB female port controls the entire data transmission process,...

Claims

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Application Information

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IPC IPC(8): G06F13/40
CPCG06F13/4022G06F2213/0042
Inventor 刘伟
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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