GTX 自环 经典疑问
时间:10-02
整理:3721RD
点击:
做自环的时候,仅用一个IP核,简单的把txp,txn连接到ip核的rxn,rxp。
但是是有问题的,我怀疑对txp,txn,或者rxp,rxn是需要进行一定的约束的,我只是简单的将两者连接了起来。
错误的提示是:
txn_out is not completely routed.
txp_out is not completely routed.
[Drc 23-20] Rule violation (RTSTAT-1) Unrouted net - 2 net(s) are unrouted. The problem net(s) are gtwizard_2_support_i/U0/gtwizard_0_init_i/gtwizard_0_i/gt0_gtwizard_0_i/gt0_gtxtxn_out, gtwizard_2_support_i/U0/gtwizard_0_init_i/gtwizard_0_i/gt0_gtwizard_0_i/gt0_gtxtxp_out.
很明显的提示,就是txp,txn出问题了,我已经弄了很久了,给个思路吧,老是解决不了这个问题。
但是是有问题的,我怀疑对txp,txn,或者rxp,rxn是需要进行一定的约束的,我只是简单的将两者连接了起来。
错误的提示是:
txn_out is not completely routed.
txp_out is not completely routed.
[Drc 23-20] Rule violation (RTSTAT-1) Unrouted net - 2 net(s) are unrouted. The problem net(s) are gtwizard_2_support_i/U0/gtwizard_0_init_i/gtwizard_0_i/gt0_gtwizard_0_i/gt0_gtxtxn_out, gtwizard_2_support_i/U0/gtwizard_0_init_i/gtwizard_0_i/gt0_gtwizard_0_i/gt0_gtxtxp_out.
很明显的提示,就是txp,txn出问题了,我已经弄了很久了,给个思路吧,老是解决不了这个问题。
把手册自环的部分再读几遍