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Recent content by Fun-King

  1. Fun-King

    bang-bang phase detector, What is the meaning "bang-bang"?

    Another phase detector style is Mueller-Muller phase detector. This is posted by K. Mueller and M. Muller. So the name "Mueller-Muller" is reasonable. But "bang-bang" is nothing to do with its designer Alexander. Why we named it with 'bang-bang'?
  2. Fun-King

    bang-bang phase detector, What is the meaning "bang-bang"?

    bang-bang phase detector or Alexander phase detector, What is the meaning of "bang-bang"?
  3. Fun-King

    FPGA PR error message

    Thanks for your suggestion, I will have a try.
  4. Fun-King

    FPGA PR error message

    VU19P PR tool: Vivado 1675388952 VU19P PR tool: Vivado Is this means: fix from front-end is the best way to solve this problem ? Is there some suggestion to solve this error from PR tool or synthesis tool ?
  5. Fun-King

    FPGA PR error message

    Message display as fellow. Is there any suggestion? [Place 30-99] Placer failed with error: 'Design cannot be split into multiple SLRs due to overutilization: 106.7% LUT utilization in SLR2, 82505 SLLs required between SLR2 and SLR3 of 23040 SLLs available. Resolution: Review and adjust...
  6. Fun-King

    How to enable ULVT cell only part of design in synthesis?

    Hierarchy: HARD_BLOCK |- BLOCKA |- BLOCKB |- BLOCKC How can we just use ULVT cell in BLOCKA during synthesis? solution A: Treat BLOCKA as another hard block or soft block, do synthesis independently. solution B: Constraint ULVT percentage as m during synthesis. m < (BLOCKA std cell...
  7. Fun-King

    Register Files vs SRAMs

    The bits cell are different. Bits cell area: ROM < SRAM < Register But some type of SRAM use register inside. These information can be found in user manual of memory compiler.
  8. Fun-King

    Why another set of cells just for clock exists in library? What's the difference between CK* cells with other base cells?

    There are CK* cells in library. And There are basic combine logic cells in library. CKMUX2Dx vs MUX2Dx CKND2Dx vs ND2Dx CKOR2Dx vs OR2Dx ... 1. What's the difference? 2. What's the beneficial to use these CK* cells? 3. Do we need to set these cells dont use in synthesis?

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