计算机与网络
計算機與網絡
계산궤여망락
CHINA COMPUTER & NETWORK
2014年
20期
67-69
,共3页
SPI%自举引导%DSP%程序烧写
SPI%自舉引導%DSP%程序燒寫
SPI%자거인도%DSP%정서소사
SPI%boot loader%DSP%program writing
随着数字信号处理技术的飞速发展和DSP的广泛应用,作为其外挂的SPI EEPROM存储器也得到越来越多地关注和应用。基于TI公司的TMS320VC5502和ST公司的M45PE20开发系统为背景,着重介绍了硬件接口的设计、程序烧写和上电时正确的自举引导等关键技术问题,对烧写过程和自举引导时序作了详细的描述,在示波器上抓到了其过程波形,并且在实际应用中得到了验证。
隨著數字信號處理技術的飛速髮展和DSP的廣汎應用,作為其外掛的SPI EEPROM存儲器也得到越來越多地關註和應用。基于TI公司的TMS320VC5502和ST公司的M45PE20開髮繫統為揹景,著重介紹瞭硬件接口的設計、程序燒寫和上電時正確的自舉引導等關鍵技術問題,對燒寫過程和自舉引導時序作瞭詳細的描述,在示波器上抓到瞭其過程波形,併且在實際應用中得到瞭驗證。
수착수자신호처리기술적비속발전화DSP적엄범응용,작위기외괘적SPI EEPROM존저기야득도월래월다지관주화응용。기우TI공사적TMS320VC5502화ST공사적M45PE20개발계통위배경,착중개소료경건접구적설계、정서소사화상전시정학적자거인도등관건기술문제,대소사과정화자거인도시서작료상세적묘술,재시파기상조도료기과정파형,병차재실제응용중득도료험증。
With the rapid development of digital signal processing technology and the extensive application of DSP processor, SPI EEPROM memorizer is gaining more attention and extensive application. Based on the development systems of TI company's TMS320VC5502 and ST company's M45PE20, this paper mainly introduces such key technologies as hardware interface design, program writing and right boot loader at power up time, describes in detail the process of program writing and the sequence of boot loader, gets the waveform of process on an oscilloscope, and verifies its feasibility in the practical application.