I define IO PIN and I use ALT_INBUF_DIFF
After compile error message as below;
Error (275021): Illegal wire or bus name "CAM_CP(n)" of type pin
How fix this problem?
I am not clear whether you get this Error in rtl or after pin planner.
I would like to suggest you check the below details,
In pin planner, assign the pin only to the positive pin of a differential pair, (n) pin will get assigned automatically by tool.
Refer the 'Assigning Differential Pins 'from link below,
'However I try very simple case as attached.' - - - - where?
could you please provide the project(*.qar) file (Project menu->Archive Project..) for replication purpose?
I am unable to see your capture files, Can you?
'could you please provide the project(*.qar) file (Project menu->Archive Project..) for replication purpose?' ------ if possible.