标题: 求助各位一个用DE2 CCD带的SDRAM控制器无法仿真问题 [打印本页] 作者: laoxizi 时间: 2010-4-2 10:53 标题: 求助各位一个用DE2 CCD带的SDRAM控制器无法仿真问题 用ModelSim仿真的时候提示：
# at time 480488 ns ERROR: Bank 0 is not Precharged.
# at time 482088 ns ERROR: All banks must be Precharge before Auto Refresh
# at time 482148 ns ERROR: Cannot Read or Write - Bank 0 is not Activated
# at time 483688 ns ERROR: All banks must be Precharge before Auto Refresh
# at time 483748 ns ERROR: Cannot Read or Write - Bank 0 is not Activated
# at time 505128 ns ERROR: All banks must be Precharge before Auto Refresh
# at time 525928 ns ERROR: All banks must be Precharge before Auto Refresh
# at time 546728 ns ERROR: All banks must be Precharge before Auto Refresh