摘要
介绍了一种基于双口RAM的数据采集系统的硬件组成和实现原理.详细讨论了单片机和ADC0809与双口RAM的连接方法,针对ADC0809和单片机同时对双口RAM读写数据时的仲裁问题,提出了硬件判优实现方法,并给出了相应的软件设计流程,解决了速度匹配问题.
The principle and components of a data-acquisition chip were introduced, and the techniques of the connection were discussed . Due to the arbitration problems while the ADC0809 and the microprocessor access the dual-port RAM at the same time, the hardware arbitration was presented and the flow chart of software design was given,thereby solving the match problem of speed .
出处
《应用科技》
CAS
2004年第5期22-24,共3页
Applied Science and Technology
