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From: verno@a...<verno@a...>
Date: Tue Jul 20 14:50:04 CEST 2004
Subject: [openrisc] problem with clk signals
Dear All,

I haven't solved the following problem with the ISE 6.1. I'd like to
inquire: Has anybody the same problem with the orp Soc. Has anybady
a good ide how can I solv the following problem?
Thanks a lot!
Erno Varga


> Below the the error code:
> ERROR:NgdBuild:466 - input pad net 'clk' has illegal connection.
> Possible
> pins
> causing this are:
> pin C on block or1200_top_or1200_pm_sdf_2 with type FDCE,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_27 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_28 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_29 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_31 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_30 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_0 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_1 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_2 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_3 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_4 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_5 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_6 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_7 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_8 with
> type FDP,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_9 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_10 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_11 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_12 with
> type FDC,
> pin C on block or1200_top_or1200_immu_top_icpu_adr_o_13 with
> type FDC
> WARNING:NgdBuild:479 - The input pad net 'tdmrx' is driving one or
> more clock
> loads that should only use a dedicated clock buffer. This could
> result
> in
> large clock skews on this net. Check whether the correct type of
> BUF
> is being
> used to drive the clock buffer.
> NGDBUILD Design Results Summary:
> Number of errors: 1
> Number of warnings: 1
> Total memory usage is 48940 kilobytes
> One or more errors were found during NGDBUILD. No NGD file will be
> written.
> Writing NGDBUILD log file "xsv_fpga_top.bld"...
> ERROR: NGDBUILD failed
> Process "Translate" did not complete.
>
>