| XILINX FPGA的時(shí)序約束設(shè)計(jì) | |
| 所屬分類：參考設(shè)計(jì) | |
| 上傳者：nuanyangyang | |
| 文檔大小：1360 K | |
| 標(biāo)簽： FPGA | |
| 所需積分：0分積分不夠怎么辦？ | |
| 文檔介紹：Timing constraints may be applied to a schematic using the timespec ? symbol (FROM:TO’s) if your compiler supports them They can be added to HDL source code ? called a .UCF (user constraints file), They can be input in a separate file ? constraints file) or a synthesizer generated .NCF (netlist ile). f the PCF (physical constraints Some constraints must be placed in ? Normally, the PCF should be avoided by users. | |
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