this project is based on jk and t flip flop using vhdl.this is the 100 correct code,reference is taken from book digital electrionics written by anand kumar.please use quatrus to access this code.this code can be used for the final year project for e

测量相位差并用LCD显示。从信号源接入两路信号,经过AD1和AD2转换后，送入FPGA中。 在FPGA中，使用双值法整形，得到两路标准的方波，然后测出两路信号的时差Δt，以及信号的周期T， 并计算相位差（ΔΦ=Δt/T*360°）。并送入1602中显示。经测试，其测相误差小于1 。-Measured phase difference and with LCD display. Two-way access from the source signal, converted by AD1

-- Mod-16 Counter using JK Flip-flops -- Structural descr iption of a 4-bit binary counter. -- The first two design entities describe a JK flip-flop and a 2-input AND gate respectively. -- These are then packaged together along with a signal