基于PCI接口芯片外扩FIFO的FPGA实现  

Realization of FPGA Expanding FIFO Based on the Interface Chip of PCI

作　　者：张志安[1] 陈荷娟[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《微计算机信息》2009年第17期234-235,266,共3页Control & Automation

摘　　要：介绍了PCI9054接口芯片的性能及数据传输特点,提出了一种基于PCI9054外扩异步FIFO(先进先出)的FPGA(现场可编程门阵列)实现方法。由于PCI9054内部FIFO存储器主要用于数据的读写控制,容量有限,不能满足半实物仿真系统数据传输的要求。因此,本文利用FPGA来实现外扩异步FIFO的方法。该方法采用模块化的设计思想,用FPGA作为系统的控制核心,解决了半实物仿真系统数据传输过程中由计算机中断而引起的数据传输间歇性问题。Introducing the performance and data transmission characteristic of PCI 9054 interface chip, a realization method of FPGA based on PCI 9054 expanding asynchronous FIFO is put forward. Because the PCI 9054 interior FIFO is used in the read-write control of data, its capability is limited, and can＇t fulfil the data transmission request of the hardware-in-the-loop simulation system. So, the method of expanding asynchronous FIFO is implemented by FPGA. The method manages a modularization design, using FPGA （Field Programmable Gate Array） as the system control center, the data transmission intermittence issue is resolved by computer interrupt in the data transmission process of hardware-in-the-loop simulation system.

关 键 词：PCI总线 物仿真 FPGA FIFO 

分 类 号：TP334.3[自动化与计算机技术—计算机系统结构]