In this paper, the implementation of software module using 'VHDL' for Xilinx FPGA (XC2S30) based PID controller for DC motor speed control system is presented. The tools used for building and testing the software modules are Xilinx ISE 9.1i and ModelSim XE III 6.3c. Before verifying the design on FPGA the co mplete design is simulated using Modelsim Simulation tool. A test bench is written where, the set speed can be changed for the motor. It is observed that the motor speed gradually changes to the set speed and locks to the set speed.
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机译：本文提出了基于“ VHDL”的软件模块对基于Xilinx FPGA（XC2S30）的PID控制器的直流电机速度控制系统的实现。 Xilinx ISE 9.1i和ModelSim XE III 6.3c是用于构建和测试软件模块的工具。在FPGA上验证设计之前，请使用Modelsim Simulation工具对完整设计进行仿真。编写了一个测试台，可以在其中更改电机的设定速度。观察到电动机速度逐渐改变为设定速度并锁定为设定速度。
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