基于FPGA的HDB3码编码

moduletest_hdb3(reset_all,data_in,clk_2m,tdp,out,tdn,select_pn);inputreset_all;inputdata_in;inputclk_2m;outputtdp;outputtdn;outputout;outputselect_pn;regdata_in_buff;always@(negedgereset_allorposedgeclk_2m)beginif(!reset_all)