一种基于EDA技术的组合逻辑控制器实验开发

Experimental design based on EDA technology of combinational logic controller

采用ABEL硬件描述语言,设计并完成了一个8位的CPU组合逻辑控制器实验设计,包括指令系统、指令格式、指令执行步骤、运算器控制和测试程序设计等,并给出了每一步设计中的关键问题解决方案。ABEL开发环境选用isp LEVEL Project Navigator3.0,下载工具采用LSC isp VMsystem15.3,可编程芯片选用Lattice i M4A5-128/64,运算器芯片为两片am2901构成的8位运算器。该实验方式灵活,实验内容容易扩展,能较好地提高学生的实践动手能力,解决传统验证性实验对学生思维扩展能力训练不足的问题。

Use ABEL hardware description language, a 8-bit CPU combinational logic controller ex- periments were designed, including instruction, instruction format, instruction execution steps, opera- tion control, test program design. Some key problems solutions were analyzed. ABEL development envi- ronment choosing isp LEVEL Project Navigator3. 0, download tools using LSC isp VMsystemlS. 3, programmable chip using Lattice iM4A5-128/64, and calculator were combined by two am2901 chips. The experiment content is flexible and easy to expand, and can effectively improve the practical ability of students, cultivate interest in learning, to solve the traditional verification experiment expansion a- bility training problems of students thinking.