If a pad connected to a global buffer (BUFG or BUFGP) is assigned to a nonglobal pad location, MAP issues the following error:
"ERROR: MapLib:93 - Illegal LOC on symbol "clk.PAD" (pad signal=clk) or BUFGP symbol "u1" (output signal=u1), IPAD-IBUFG should only be LOC'd to GCLKIOB site."
Verify that the pad is assigned to a global pad location. This information is available in the data sheet for the device you are using. You can access data sheets at:
http://www.xilinx.com/xlnx/xweb/xil_publications_index.jsp
This error is often seen when you want to drive a BUFG from a non-GCLKIOB site. The presence of the BUFG causes an IBUFG to be inferred during synthesis, which is incompatible with the non-GCLKIOB site. You should instantiate an IBUF instead.
AR# 9913 | |
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日期 | 12/15/2012 |
状态 | Active |
Type | 综合文章 |