工具在place、cts以及后续步骤的时候发现对于下图所示的几种path,并不会去解drv,报的drvFailureReason也不太明白什么意思,麻烦各位大佬给指导一下。万分感谢!!!!
(1)Could not be fixed because the gain is not enough;(2)Could not be fixed because UPF constrained HNet,这个意思是high fanout么;(3)Could not be fixed because the given cell is not bound in location domain timing library
没有这样的waring,不过这个waring挺多的。
**WARN: (IMPSP-7207): Shifter 'ddr_sys_top/U_inno_ctrl_phy_top/INNO_DDR_PHY/ISO__snps_PD_ddr_phy__ISO_ddr_phy_clamp0_snps_paddr_9__UPF_ISO' has no connections outside its power domain