AR# 898: check -p sdesign.1 fails because of invalid/overlapping nets
AR# 898
check -p sdesign.1 fails because of invalid/overlapping nets
Description
When XSIMMAKE is run, CHECK -p design.1 sometimes overlooks mistakes in the schematic, like overlapping nets. The second check in XSIMMAKE CHECK -p sdesign.1 will issue the following message:
abnormal program termination
CHECK is crashing of an invalid net connection on the schematic. XDRAW is the program that creates the s<design> schematics. It fails to create valid nets in the new schematics under certain conditions.
Nets that are overlapped will have a junction appear somewhere on the net where there normally would not be one. For example, you might see a junction point where only two nets appear to enter the junction. Move the nets around and you will see a third net under the first two.
解决方案
On the schematic, look for junction points that appear to have only two nets attached. Delete the nets associated with the junction, and redraw the circuit. Rerun XSIMMAKE and repeat this process until all of the original schematics are cleaned up.