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How to Synthesize Buffer Chain?

Kraj

I want to implement 6 buffer delay in my design and I am writing set_dont_touch  i _delay_1 true command where i_delay_1 is instance name but it gives an error like cannot preserve unmapped or partially mapped design, first synthesize with mapping

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  • You cannot dont_touch an element that has not been mapped. Otherwise, it would be unmanufacturable. You need to instantiate the library buffers you want and dont_touch or add them through ECO type operation (edit_netlist . . .) after synthesis

    hope this helps,
    gh-
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  • You cannot dont_touch an element that has not been mapped. Otherwise, it would be unmanufacturable. You need to instantiate the library buffers you want and dont_touch or add them through ECO type operation (edit_netlist . . .) after synthesis

    hope this helps,
    gh-
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