开发环境是quartus ii，是学校的一个FPGA实验，计算一个信号的频率，这个是我做得最好的一个作品，调试成功。压缩包里包含题目要求以及我做好的模块。-Development environment is quartus ii, an FPGA experimental school, calculate the frequency of a signal, this is I' m doing the best work, debugging success. The compres