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Hard macros power routing issues

dbekiaris

Hello everybody,

 I import a design in SoC Encounter 7.1, where three hard macros (SRAMs) exist. The problem is that when I am trying to create the power stripes and connect them with the core rings to synthesize the power grid, the SRAM p/g pins cannot connect with the remaining power/ground network, although I have selected the proper metal layer from the .lef files of the macros. Is there anything possible to do for this? I tried also to align pins of the specified macros with the power/ground stripes, but it failed again. If it is possible, please help. Thank you very much in advance.

 

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  • Hi Kari, Thanks again for answering!Here is the detailed view of one of the macros (in a larger design now, but based on the same technology library). It seems that the pins are not very well located, because the opens are put inside the area of the macro. Therefore, the ring for the specific block should be redrawn. But how can somebody find out the location of pins for a hard macro, apart from creating a specific partition? Thank you very much in advance again! Kind Regards dbekiaris
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  • Hi Kari, Thanks again for answering!Here is the detailed view of one of the macros (in a larger design now, but based on the same technology library). It seems that the pins are not very well located, because the opens are put inside the area of the macro. Therefore, the ring for the specific block should be redrawn. But how can somebody find out the location of pins for a hard macro, apart from creating a specific partition? Thank you very much in advance again! Kind Regards dbekiaris
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