基于FPGA的多通道控制器的设计与模拟实现  

The design and implement of a multi-channel controller based on FPGA

作　　者：李萌萌[1] 彭建朝[1] 许向众[1] 

机构地区：[1]北京工业大学计算机学院,北京100124

出　　处：《微计算机信息》2009年第14期168-170,共3页Control & Automation

摘　　要：本文阐述了在嵌入式开发平台上,使用NiosⅡ系统开发的多通道控制器的模拟实现。利用应用软件对8路A/D通道、2路D/A通道和8路开关量输入、8路开关量输出通道进行控制。上位机通过RS-232串口与该控制器进行通讯,采用发送命令的方式对多通道控制器进行管理。其中以IP复用技术为基础,研究并尝试了IP核硬件抽象层的自主开发,并规定了基于UART的RS-232串口通讯协议,以便上位机有效进行通道的管理和数据交换。This paper introduces using the Nios Ⅱ system implementing the design of an muhi-channel controller on the embedded development platformat, ruing to implement the control and management of eight channels about the conversion form analog signals to digital signals and two channels about it from digital signals to analog signals and eight channels about switch variable about in and out, based on software. The upper-computer can communicate with the muhicenter-controller by RS-232 serial port, using the mode of transmitting orders to control it. Besides, research and attempt the exploitation of IP hardware abstract layer （HAL） based on the technology of IP reusage by myself. Making the RS-232 serial port communication protocol, the upper-computer can realize the management of all channels effectively and do the data exchange by transmitting the orders set.

关 键 词：嵌入式系统 IP复用 NiosⅡ软核处理器 多通道控制 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]