在以MC68360为核心的某型网络通信设备中,采用Am79C940作为网络接口。设计Am79C940和MC68360的接口硬件电路,使用MC68360的2个IDMA通道在中断控制方式下,分别从Am79C940收/发数据。通过建立中断服务例程和缓冲链表数据结构,设计实现了基于Nucleus操作系统的网络驱动程序。运行实测表明接口工作性能稳定可靠,满足实际应用要求。
- Abstract:
- In certain network communication equipment with MC68360core,Am79C940is adopted as network interface.The interface hardware circuit between Am79C940and MC68360is designed,and MC68360's two IDMA channels are used to receive and transmit data respectively with Am79C940under the interrupt control mode.By establishing interrupt service routines and buffer-list data structure,the driver program based on Nucleus operating system is also designed.Running test shows that the interface is stable and reliable,and meets the requirement of practical application.
声明:本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人,不代表电子发烧友网立场。文章及其配图仅供工程师学习之用,如有内容侵权或者其他违规问题,请联系本站处理。 举报投诉