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Использую 2s100tq144 - clk идет через "Р18" (GCK2) - при этом всеравно выдаётся:
Phase 2.23
ERROR:Place:106 - Could not find an automatic placement for the following
components:
input1 of type GCLK IOB is placed at P18.
u1 of type DLL is unplaced.
u2 of type GCLK BUFFER is unplaced.
u6 of type GCLK BUFFER is unplaced.
u4 of type DLL is unplaced.
u5 of type GCLK BUFFER is unplaced.
ERROR:Place:107 - Xilinx requires using locate constraints to preplace such
connected GCLK/GCLKIO/DLL components.
Phase 2.23 (Checksum:1312cfe) REAL time: 0 secs
Почму?
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