module myfft(fwd_inv_we,start,fwd_inv,clk,
rfd,dv,done,busy,edone,
xn_re,xn_im,xk_re,xk_im,
xn_index,xk_index
);
input fwd_inv_we,start,fwd_inv,clk;
output rfd,dv,done,busy,edone;
input [15:0] xn_re,xn_im;
output [20:0] xk_re,xk_im;
output [3:0] xn_index,xk_index;
fft1 u1(fwd_inv_we(fwd_inv_we),start(start),fwd_inv(fwd_inv),clk(clk),
rfd(rfd),dv(dv),done(done),busy(busy),edone(edone),
xn_re(xn_re),xn_im(xn_im),xk_re(xk_re),xk_im(xk_im),
xn_index(xn_index),xk_index(xk_index)
);
//fwd_inv_we(fwd_inv_we),start(start),fwd_inv(fwd_inv),
endmodule
综合后说找不到FFT核的源文件,是怎么回事?请教