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Extension of the USB Interface on Instrument for Monitoring the Environment

Meng Xian

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Abstract

USB has many advantages, including quick speed of transmission、high reliability、high real-time、easily extend、application flexibility、be capable of detecting wrong. USB is used to PC exterior equipment and portable system as a kind of communication interface standard, therefore, in the extensively, it substitute for several communication mode such as RS-232、PIO, etc. In this paper, the hardware circuit design of USB interface based on PDIUSBD12 chip is introduced, meanwhile implement of USB firmware program is introduced.

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What this paper is about

USB has many advantages, including quick speed of transmission、high reliability、high real-time、easily extend、application flexibility、be capable of detecting wrong. USB is used to PC exterior equipment and portable system as a kind of communication interface standard, therefore, in the extensively, it substitute for several communication mode such as RS-232、PIO, etc. In this paper, the hardware circuit design of USB interface based on PDIUSBD12 chip is introduced, meanwhile implement of USB firmware program is introduced.

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Available abstract

USB has many advantages, including quick speed of transmission、high reliability、high real-time、easily extend、application flexibility、be capable of detecting wrong. USB is used to PC exterior equipment and portable system as a kind of communication interface standard, therefore, in the extensively, it substitute for several communication mode such as RS-232、PIO, etc. In this paper, the hardware circuit design of USB interface based on PDIUSBD12 chip is introduced, meanwhile implement of USB firmware program is introduced.

Key concepts: USB, Firmware, USB hub, Host controller interface, eXtensible Host Controller Interface (xHCI), Interface (matter), Embedded system, Computer hardware

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