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Multiple interfaces program loading apparatus for mobile terminal

A mobile terminal and program download technology, applied in the field of USB ports, can solve the problems of slow communication speed and high cost, and achieve the effect of meeting the needs of large-scale quantity download and high-speed communication

Inactive Publication Date: 2009-05-06
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of slow communication speed and high cost between the serial port of the computer and the serial port of the mobile terminal. The USB port of the computer is used to provide a device for inputting one-way computer USB differential signals and outputting eight-way UART signals. Make one computer communicate with eight mobile terminals at the same time, which can be widely used in mobile terminal PCB Test, software download, after-sales software upgrade and other applications. At the same time, because all chips supporting USB2.0 are used, the device can realize mobile terminal and High-speed communication between computers, with the software on the PC side, the communication rate can be adjusted according to needs, and the communication speed can be greatly improved

Method used

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  • Multiple interfaces program loading apparatus for mobile terminal
  • Multiple interfaces program loading apparatus for mobile terminal
  • Multiple interfaces program loading apparatus for mobile terminal

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Embodiment Construction

[0016] Such as figure 1 Shown is the principle block diagram of the mobile terminal multi-port program downloading device. Its specific working principle is as follows: through the switching power supply module 1, the 220V AC power is converted into 5V DC voltage, and the voltage is transformed and stabilized by the LDO to output 3.3V. The voltage supplies power to the USB expansion circuit 2, and the USB expansion circuit communicates with the four-way USB differential signal to UART signal conversion circuit 3 through the relevant pins, and the relevant pins of the USB to UART chip are connected to the DA / DB serial port, and through the mobile The terminal data line communicates with the mobile terminal MS.

[0017] At the same time, one of the switching power supply module 1 outputs 5V voltage through a switch, and one path is directly connected to DA, and supplies 5V DC voltage to the CDMA mobile terminal through the mobile terminal data line, and the other path outputs 4....

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Abstract

The provided multi-port program download device for mobile terminal comprises: an USB expand circuit connected with a transformation circuit to convert USB signal into UART signal, and a 220V-5A switch power module. This invention overcomes download speed difficulty, and can reduce cost.

Description

technical field [0001] The present invention belongs to the technical field of communication and program download between different devices, more specifically, it relates to USB ports connecting multiple mobile terminals and computers, so as to realize simultaneous data transmission between multiple mobile terminals and a computer and program downloads. Background technique [0002] In the mobile terminal industry, when performing data transmission between computers and mobile terminals, the more commonly used technical method is to communicate between the COM port of the PC, that is, the serial communication port, and the UART port of the mobile terminal, especially in the mobile terminal. In the manufacturing mode of the current mobile terminal, the UART port of the mobile terminal is connected to the COM port of the PC for one-to-one data transmission and program download. [0003] In order to meet the large-scale and fast communication required by the production or afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40G06F1/26G06F11/32
Inventor 张洋夏光平
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD