总长度1026+28,并且高低8位交换 ‘d9: w_dd <= ‘h0;//id号,始终为0 ‘d10:w_dd <= ‘h0;//fragment offset始终为0; ‘d11:w_dd <= ‘h1140;//生存期和协议号,固定 ‘d12:w_dd <= ‘h0;//ip校验和,由mac芯片自动生成 ‘d13:w_dd <= ‘ha8c0;//源ip,固定为192.168.1.204 ‘d14:w_dd <= ‘hcc01; ‘d15:w_dd <= ‘hffff;//目的ip,任意 ‘d16:w_dd <= ‘hffff; ‘d17:w_dd <= ‘h7017;//源端口,固定为6000 ‘d18:w_dd <= ‘h7017;// 目的端口,固定为6000 ‘d19:w_dd <= ‘h0a04;//udp数据长度 ‘d20:w_dd <= ‘h0;////校验和由ax88180自动生成 ‘d21:w_dd <= row_n
;//ip包总长度1026+28,并且高低8位交换 'd9: w_dd <= 'h0;//id号,始终为0 'd10:w_dd <= 'h0;//fragment offset始终为0; 'd11:w_dd <= 'h1140;//生存期和协议号,固定 'd12:w_dd <= 'h0;//ip校验和,由mac芯片自动生成 'd13:w_dd <= 'ha8c0;//源ip,固定为192.168.1.204 'd14:w_dd <= 'hcc01; 'd15:w_dd <= 'hffff;//目的ip,任意 'd16:w_dd <= 'hffff; 'd17:w_dd <= 'h7017;//源端口,固定为6000 'd18:w_dd <= 'h7017;// 目的端口,固定为6000 'd19:w_dd <= 'h0a04;//udp数据长度 'd20:w_dd <= 'h0;////校验和由ax88180自动生成 'd21:w_dd <= row_num;//图像