Nexys4 DDR MIG控制器引脚文件

目前网上只有ucf文件，vivado不兼容ucf格式

使用c++字符串转换的xdc格式代码

set_property -dict { PACKAGE_PIN R7   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[0] }];
set_property -dict { PACKAGE_PIN V6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[1] }];
set_property -dict { PACKAGE_PIN R8   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[2] }];
set_property -dict { PACKAGE_PIN U7   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[3] }];
set_property -dict { PACKAGE_PIN V7   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[4] }];
set_property -dict { PACKAGE_PIN R6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[5] }];
set_property -dict { PACKAGE_PIN U6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[6] }];
set_property -dict { PACKAGE_PIN R5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[7] }];
set_property -dict { PACKAGE_PIN T5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[8] }];
set_property -dict { PACKAGE_PIN U3   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[9] }];
set_property -dict { PACKAGE_PIN V5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[10] }];
set_property -dict { PACKAGE_PIN U4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[11] }];
set_property -dict { PACKAGE_PIN V4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[12] }];
set_property -dict { PACKAGE_PIN T4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[13] }];
set_property -dict { PACKAGE_PIN V1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[14] }];
set_property -dict { PACKAGE_PIN T3   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dq[15] }];
set_property -dict { PACKAGE_PIN T6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dm[0] }];
set_property -dict { PACKAGE_PIN U1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_dm[1] }];
set_property -dict { PACKAGE_PIN U9   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_dqs_p[0] }];
set_property -dict { PACKAGE_PIN V9   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_dqs_n[0] }];
set_property -dict { PACKAGE_PIN U2   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_dqs_p[1] }];
set_property -dict { PACKAGE_PIN V2   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_dqs_n[1] }];
set_property -dict { PACKAGE_PIN N6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[12] }];
set_property -dict { PACKAGE_PIN K5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[11] }];
set_property -dict { PACKAGE_PIN R2   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[10] }];
set_property -dict { PACKAGE_PIN N5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[9] }];
set_property -dict { PACKAGE_PIN L4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[8] }];
set_property -dict { PACKAGE_PIN N1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[7] }];
set_property -dict { PACKAGE_PIN M2   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[6] }];
set_property -dict { PACKAGE_PIN P5   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[5] }];
set_property -dict { PACKAGE_PIN L3   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[4] }];
set_property -dict { PACKAGE_PIN T1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[3] }];
set_property -dict { PACKAGE_PIN M6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[2] }];
set_property -dict { PACKAGE_PIN P4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[1] }];
set_property -dict { PACKAGE_PIN M4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_addr[0] }];
set_property -dict { PACKAGE_PIN R1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_ba[2] }];
set_property -dict { PACKAGE_PIN P3   IOSTANDARD SSTL18_II  } [get_ports { ddr2_ba[1] }];
set_property -dict { PACKAGE_PIN P2   IOSTANDARD SSTL18_II  } [get_ports { ddr2_ba[0] }];
set_property -dict { PACKAGE_PIN L6   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_ck_p[0] }];
set_property -dict { PACKAGE_PIN L5   IOSTANDARD DIFF_SSTL18_II  } [get_ports { ddr2_ck_n[0] }];
set_property -dict { PACKAGE_PIN N4   IOSTANDARD SSTL18_II  } [get_ports { ddr2_ras_n }];
set_property -dict { PACKAGE_PIN L1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_cas_n }];
set_property -dict { PACKAGE_PIN N2   IOSTANDARD SSTL18_II  } [get_ports { ddr2_we_n }];
set_property -dict { PACKAGE_PIN M1   IOSTANDARD SSTL18_II  } [get_ports { ddr2_cke[0] }];
set_property -dict { PACKAGE_PIN M3   IOSTANDARD SSTL18_II  } [get_ports { ddr2_odt[0] }];
set_property -dict { PACKAGE_PIN K6   IOSTANDARD SSTL18_II  } [get_ports { ddr2_cs_n[0] }];