摘要
以芯片C8051F020单片机的SPI总线为例,介绍SPI总线一主多从方式的应用方法.这种方法可以简化电路设计、提高数据读写速度,文章给出了硬件电路的设计及其注意事项,并以时钟芯片RTC4553为例,介绍了单片机的软件设计方法,本方法在产品配变监测终端上得到了很成功的应用.
One main and multi servo method of SPI Bus is introduced by application of SPI bus in singlechip C8051F020. The method can simply the circuit and accelerate the speed of read - write, The design and notice of hardware are given. As an example, the chip RTC4553 is used to illuminate the design of software of singlechip. These methods are applied successfully to the monitoring terminal of distribution transformer.
出处
《宜春学院学报》
2006年第6期58-60,共3页
Journal of Yichun University
关键词
SPI总线
一主多从
SPI Bus
One main and multi servo
