Intelligent memory with female and male USB interface

Abstract

The invention discloses an intelligent memory provided with male and female USB interfaces. A hardware structure of the intelligent memory comprises a CPU, a memory, a charging circuit, a communication protocol, a USB male end interface, a USB female end interface and the like. The CPU is a singlechip C80C51 F321; the memory is K9F560 with a 256MB space; a power manager adopts LTC4062; one end ofthe USB male end interface is used for performing communication with a PC host or other similar equipment; the USB female end interface is used for receiving the data of the other similar equipment; and the CPU is used for controlling and managing the operation of the whole system. The intelligent memory has the key characteristics that: 1, the intelligent memory has USB male end and female end connectors simultaneously; 2, the intelligent memory can communicate with the other similar equipment independently and identify the connection state of the external equipment automatically; and 3, when the intelligent memory is connected with the PC host, the intelligent memory serves as a standard USB external memory device, the two devices use a two-way protocol, and if another similar equipmentis also connected with the PC host at the same time, the intelligent memory can communicate with the similar equipment through using a separation peripheral equipment communication protocol simultaneously. The intelligent memory has simple circuit and higher use automation degree, and is convenient to carry.

Description

Technical field [0001] The invention relates to a memory having both a USB male and a female interface, and in particular to an intelligent memory with an adaptive USB interface that can work independently. Background technique [0002] 1. Most of the existing portable storage devices are USB interface storage devices. Such storage devices work in slave mode. If you want to access them, you must connect to another USB interface device (such as a PC) with a master mode. Control the reading and storage of the slave device by operating the USB interface device with the master mode. [0003] 2. Existing portable storage devices cannot be connected to each other, and there is no internal file transfer function. [0004] 3. Other smart devices need keyboards, graphic displays and many other units, which are large in size and consume a lot of power, making them inconvenient to carry around. Summary of the invention [0005] The present invention is designed to solve the above-mentioned tec...

AI Technical Summary

Problems solved by technology

[0002] 1. Most of the existing portable storage devices are USB interface storage devices. This type of storage device works in slave mode. If it is to be accessed, it must be connected with another USB interface device (such as a PC) with master mode. Control the reading and storage of slave devices by operating USB interface devices with master mode

[0003] 2. Existing portable storage devices cannot be connected to each other, and there is no internal file transfer function

[0004] 3. Other smart devices require keyboards, graphics displays and many other units, which are large in size and consume a lot of power, so they are inconvenient to carry around

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