AR# 5035: M1.5 Spartan mapper can not fit design that fit in M1.4.
AR# 5035
M1.5 Spartan mapper can not fit design that fit in M1.4.
説明
A case has been seen where the M1.5 mapper does not fit a design that could be fin in M1.4. It does not appear to be doing enough unrelated merging to fit the design.
M1.4 used 97/100 CLBs with "5 unrelated functions combined, affecting 3 CLBs (3%)".
M1.5 used 101/100 CLBs with "One unrelated function packed into a CLB".
ソリューション
The design does fit if the M1.4 results are used to guide mapping, so this is a possible work around.