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Recent content by jingli888ca

  1. J

    Wire area difference when using DC and RC for the same design

    wire area A wire load model helps, but eventually it is decided by the P&R tool and your floorplan. Also, you should worry about the certain instantiated modules, if there are a lot of congestion then it is better to resolve it from RTL phase.
  2. J

    What are the applications of state machines?

    state machines There is paper about FSM style in SNUG by Cliff Cummings. this should give you a pretty good overview of FSM.
  3. J

    How to setup DC of windows version?

    It is simple. You have to convert .lib to .db file. use read_lib and write_lib to do it.
  4. J

    How to setup DC of windows version?

    Sorry, Aravind: It is just a test. Well, the target lib is from your vendor, the symbol lib is from DC, should be inside your DC folder, the link lib is the addition of both target lib and the core, the pad and anything else you have used in your design. Jing
  5. J

    problem with syn0psys

    Hello, Vonn: You have NOT set your link library and symbol library to point to the correct paths. Check with your UNIX path that stores 'your_library.sdb' and 'your_library.d Jing Added after 2 minutes: OK, Vann: in UNIX, cd to the path where your libraries are stored, and pwd, you will...
  6. J

    What is AMBA, why is it used and how does it differ from DMA?

    AMBA Question? Hello, Billjoy: AMBA is like a local bus, such as Mot860 bus, only it is inside a SoC. DMA is a mechanism to transfer large pack of data between devices that are mapped into memory space. Very often, DMA is used to access the system memory, such as the DDR SDRAM. Hope this...
  7. J

    need of tutorials on IO pads

    Hello, Hari: Do you want to design an IO PAD or just want to use it in your top-level design?
  8. J

    How to setup DC of windows version?

    It is always good to set attributes in DC scripts because it is controllable and repeatable.

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