基于FPGA的直电机伺服系统的设计的代码，VHDL语言。包括前馈控制，AD1674控制模块，ADC0809控制模块，前馈控制模块，分频模块等。,FPGA-based servo system direct the design of the electrical code, VHDL language. Including feed-forward control, AD1674 control module, ADC0809 control module, feed-forward contr