- UID
- 147331
- 性别
- 男
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在添加管脚约束后,PAR提示以下错误: ERROR:lace:311 - The IOB DDRB_p is locked to site IOB_X0Y135 in bank 5. This violates the SelectIO banking rules. Other incompatible IOBs may be locked to the same bank, or this IOB may be illegally locked to a Vref site. ERROR:lace:207 - Due to SelectIO banking constraints, the IOBs in your design cannot be automatically placed. 我仔细查过了,DDRB_p 根本没有被分配在所谓得Vref site上,同时,在该IO bank里的所有管脚都是统一的2.5v的vcco供电,IOstandard是LVDS_25_DCI、LVDS_25及LVCMOS25。应该没有违背什么 SelectIO banking rules啊!有人知道原因吗?先谢了! |
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