有几个Design Assistant warning问题怎么解决

mirandamey

Critical Warning: Design Assistant warning: Combinational logic used as reset signal should be synchronized. Found 2 node(s) related to this rule.
        Critical Warning: Node  "Trig:inst|label1~0"
        Critical Warning: Node  "Trig:inst|counter~20"
Critical Warning: Design Assistant warning: Synchronous port and reset port of same register should not be driven by same signal source. Found 20 node(s) related to this rule.
        Critical Warning: Node  "Trig:inst|q[19]"
        Critical Warning: Node  "Trig:inst|q[18]"
        Critical Warning: Node  "Trig:inst|q[14]"
        Critical Warning: Node  "Trig:inst|q[17]"
        Critical Warning: Node  "Trig:inst|q[16]"
        Critical Warning: Node  "Trig:inst|q[15]"
        Critical Warning: Node  "Trig:inst|q[9]"
        Critical Warning: Node  "Trig:inst|q[13]"
        Critical Warning: Node  "Trig:inst|q[12]"
        Critical Warning: Node  "Trig:inst|q[11]"
        Critical Warning: Node  "Trig:inst|q[10]"
        Critical Warning: Node  "Trig:inst|q[4]"
        Critical Warning: Node  "Trig:inst|q[8]"
        Critical Warning: Node  "Trig:inst|q[7]"
        Critical Warning: Node  "Trig:inst|q[6]"
        Critical Warning: Node  "Trig:inst|q[5]"
        Critical Warning: Node  "Trig:inst|q[3]"
        Critical Warning: Node  "Trig:inst|q[2]"
        Critical Warning: Node  "Trig:inst|q[1]"
        Critical Warning: Node  "Trig:inst|q[0]"
Warning: Design Assistant warning: External reset should be synchronized using two cascaded registers. Found 1 node(s) related to this rule.
        Warning: Node  "areset"

gladginay

按字面上的意思应该是说，组合逻辑的复位应该是同步才行。不然就违反设计规则。[br]<p align=right><font color=red>+3 RD币</font></p>