本代码在FPGA上实现了与STM32单片机的FSMC总线通信的时序代码，在ALTERA FPGA上得到验证。-The code on the FPGA to achieve with the STM32 microcontroller timing code FSMC bus communication is verified on ALTERA FPGA.

FPGA串口通信能在实现字符数据传输，与stm32中的串口通信类似(FPGA serial communication, in the realization of character data transmission, and STM32 serial communication similar)

verilg语言实现测频 及与stm32以fsmc通信方式进行通信(Verilg to achieve frequency measurement and communication with STM32 in FSMC communication mode)

等精度测量，频率越高精度越高，每一秒取一次数，然后经过乘除法实现，FPGA功能前更大的。还用到STM32 SPI通信(The accuracy of measurement, the higher the frequency accuracy is high, every second to take a number, then after multiplication and division, FPGA function more. STM32 SPI communications are