2009•Huagong zidonghua ji yibiaoRequires access

A method for realizing the ISP Function of AVR Single Microcontroller by Using Serial Port

Jinxiang Ma

Abstract

The single microcontroller in AVR Series was issued by ATMEL recently provided a serial peripheral interface(SPI),with which could program through computer parallel port or serial port to its internal program memory.In fact,to realize the function of in system programmable(ISP) in AVR single microcontroller by using computer serial port is to force signal wave needed by the single microcontroller,achieving the AVR single microcontroller programmed by computer.The ISP principle of the AVR single microcontroller was introduced,and a method to realize it by using computer serial port was discussed,also the programming cable chart,communication protocol and programming software were given.

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Key concepts: Microcontroller, Serial port, Computer hardware, Serial communication, Parallel port, Computer science, Port (circuit theory), Embedded system