格雷码计数器 ............\格雷码计数器 ............\............\bin_cnt.vhd ............\............\bin_to_gray.vhd ............\............\gray_counter.qar ............\............\gray_counter.vhd.bak ............\............\gray_to_bin.vhd ............\............\格雷码计数器.doc