xst.xmsgs

如何使用ISE和FPGA使用指南

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<messages>
<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/correlate_and_accumulate_xst.vhd</arg>&quot; line <arg fmt="%d" index="2">203</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLKIN_IBUFG_OUT</arg>&apos; of component &apos;<arg fmt="%s" index="4">rd_clk_core</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/correlate_and_accumulate_xst.vhd</arg>&quot; line <arg fmt="%d" index="2">203</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">LOCKED_OUT</arg>&apos; of component &apos;<arg fmt="%s" index="4">rd_clk_core</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="766" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">104</arg>: Generating a Black Box for component &lt;<arg fmt="%s" index="3">IBUFG</arg>&gt;.
</msg>

<msg type="warning" file="Xst" num="766" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">108</arg>: Generating a Black Box for component &lt;<arg fmt="%s" index="3">BUFG</arg>&gt;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLK90</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLK180</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLK270</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLKDV</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLK2X</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLK2X180</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLKFX</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">CLKFX180</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">DRDY</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">DO</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="753" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Unconnected output port &apos;<arg fmt="%s" index="3">PSDONE</arg>&apos; of component &apos;<arg fmt="%s" index="4">DCM_ADV</arg>&apos;.
</msg>

<msg type="warning" file="Xst" num="766" delta="unknown" >&quot;<arg fmt="%s" index="1">C:/training/desperf/labs/clocking/vhdl/rd_clk_core.vhd</arg>&quot; line <arg fmt="%d" index="2">112</arg>: Generating a Black Box for component &lt;<arg fmt="%s" index="3">DCM_ADV</arg>&gt;.
</msg>

<msg type="info" file="Xst" num="1813" delta="unknown" >Unable to extract FSM on signal &lt;<arg fmt="%s" index="1">cs</arg>&gt; : outputs depend on both state and next state.
</msg>

<msg type="info" file="Xst" num="1813" delta="unknown" >Unable to extract FSM on signal &lt;<arg fmt="%s" index="1">cs</arg>&gt; : outputs depend on both state and next state.
</msg>

<msg type="info" file="Xst" num="2117" delta="unknown" >HDL ADVISOR - Mux Selector &lt;<arg fmt="%s" index="1">cs</arg>&gt; of Case statement line <arg fmt="%s" index="2">45</arg> was re-encoded using one-hot encoding. The case statement will be optimized (default statement optimization), but this optimization may lead to design initialization problems. To ensure the design works safely, you can:
	- add an &apos;<arg fmt="%s" index="3">INIT</arg>&apos; attribute on signal &lt;<arg fmt="%s" index="4">cs</arg>&gt; (optimization is then done without any risk)
	- use the attribute &apos;<arg fmt="%s" index="5">signal_encoding</arg> <arg fmt="%s" index="6">user</arg>&apos; to avoid onehot optimization
	- use the attribute &apos;<arg fmt="%s" index="7">safe_implementation</arg> <arg fmt="%s" index="8">yes</arg>&apos; to force XST to perform a safe (but less efficient) optimization
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">wr_err</arg>&gt; is assigned but never used.
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">rd_addr</arg>&gt; is assigned but never used.
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">wr_addr_srst</arg>&gt; is assigned but never used.
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">wr_addr</arg>&gt; is assigned but never used.
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">rd_err</arg>&gt; is assigned but never used.
</msg>

<msg type="warning" file="Xst" num="646" delta="unknown" >Signal &lt;<arg fmt="%s" index="1">wr_err</arg>&gt; is assigned but never used.
</msg>