Question

PROTEL 99 SE中，进行DRC检查出现如下错误是什么原因:

Time : 22:41:15

Processing Rule : Clearance Constraint (Gap=5mil) (On the board ),(On the board )
Rule Violations :0

Processing Rule : Hole Size Constraint (Min=1mil) (Max=100mil) (On the board )
Rule Violations :0

Processing Rule : Width Constraint (Min=10mil) (Max=60mil) (Prefered=10mil) (On the board )
Rule Violations :0

Processing Rule : Broken-Net Constraint ( (On the board ) )
Violation Net RFVCC is broken into 2 sub-nets. Routed To 90.00%
Subnet : U7-3 C16-1 C13-1 U6-15 C14-1 U6-32 C17-2 U6-2 C15-1 U6-3
Subnet : U6-12
Violation Net GND1 is broken into 3 sub-nets. Routed To 85.71%
Subnet : DJ5-1 U8-4 C20-2 R27-2 J1-2 R13-1 R23-2 J1-1 C2-1 R24-1
R22-1 R21-1 U3-5
Subnet : R23-1
Subnet : R24-2
Rule Violations :2

Processing Rule : Short-Circuit Constraint (Allowed=Not Allowed) (On the board ),(On the board )
Rule Violations :0

Violations Detected : 2
Time Elapsed : 00:00:01

Answer 1

意思是"REVCC"与"GND1"这两个网络的线没连完全，你可以通过按“L”键，将所有的层设为不可见，仅飞线可见（如下图所示），很容易就能看出未连接的飞线。

Answer 2

RFVCC和GND1这两个网络还有飞线，可以参照检查结果中的那个subnet项来找相应的没有连上的管脚，或者用楼上的方法看出那些没有连接的飞线