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Go to the Processing menu, point to Start and select Start Analysis & Elaboration to compile the design.
Before you can connect the ELA to signals in your design, you must first compile the design to build the node database. For this step, you do not need to fit the design completely. The Start Analysis & Elaboration command builds the node database, but stops before the fitting step.

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±³¾°×ÊÁÏ£ºUsing SignalTap II Embedded Logic Analyzers in SOPC Builder Systems riple

ϵͳ·ÖÀà: CPLD/FPGA
Óû§·ÖÀà: Signal Tap II
±êÇ©: SignalTAP ±àÒëÑ¡Ïî
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In the Settings dialog box, under the Compilation Process Settings section, select Incremental Compilation. Set the Incremental Compilation option to Off.
By turning off the Incremental Compilation option, pre-synthesis signals can be added to the SignalTap II ELA in the later sections. Pre-synthesis signals exist after design elaboration, but before any synthesis optimizations are done. This set of signals should reflect your register transfer level (RTL) signals.

 

±³¾°×ÊÁÏ£ºUsing SignalTap II Embedded Logic Analyzers in SOPC Builder Systems riple

ϵͳ·ÖÀà: CPLD/FPGA
Óû§·ÖÀà: Signal Tap II
±êÇ©: signaltap ±àÒëÑ¡Ïî
À´Ô´: Ô­´´
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In the logic synthesis stage, the Quartus II software may optimize away signals that you are trying to analyze with the SignalTap II Embedded Logic Analyzer. If this occurs, you will see a compilation error. You can force the Quartus II software to preserve these signals by adding the keep or preserve attribute in the source HDL to the signals you want to monitor.

The keep attribute is used for a wire or net node. For example:
In Verilog:
    wire my_wire /* synthesis keep = 1 */:
In VHDL:
    signal my_signal: bit;
    attribute syn_keep : boolean;
    attribute syn_keep of my_signal: signal is true;

The preserve attribute is used for a register. For example:
In Verilog:
    reg my_reg /* synthesis preserve = 1 */:
In VHDL:
    signal my_reg: stdlogic;
    attribute preserve : boolean;
    attribute preserve of my_signal: signal is true;

 

±³¾°×ÊÁÏ£ºUsing SignalTap II Embedded Logic Analyzers in SOPC Builder Systems riple

ϵͳ·ÖÀà: CPLD/FPGA
Óû§·ÖÀà: Signal Tap II
±êÇ©: signaltap ±£Áô½Úµã
À´Ô´: Ô­´´
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ϵͳ·ÖÀà: CPLD/FPGA
Óû§·ÖÀà: Signal Tap II
±êÇ©: FPGA bug
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