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AR# 19663

6.2i MAP Spartan-3 LogiCORE PCI - "ERROR:MapLib:653 - Mapping operation involving: BUFT symbol "PCI_CORE/PCI_LC/0/LOWER/*" cannot be completed because it crosses a Hierarchy boundary"

Description

General Description:

When synthesizing and implementing the PING reference design for the Spartan-3 device, MAP fails with the following type of error:

"ERROR:MapLib:653 - Mapping operation involving:

BUFT symbol "PCI_CORE/PCI_LC/0/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/OE_ROM)

BUFT symbol "PCI_CORE/PCI_LC/1/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/OE1)

BUFT symbol "PCI_CORE/PCI_LC/4/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/BAR0_T)

BUFT symbol "PCI_CORE/PCI_LC/5/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/BAR1_T)

BUFT symbol "PCI_CORE/PCI_LC/E/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/OE_ADI)

BUFT symbol "PCI_CORE/PCI_LC/F/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/OE15)

BUFT symbol "PCI_CORE/PCI_LC/MASTER/3/UPPER/T15" (output signal=_N0000, enable signal=PCI_CORE/PCI_LC/OE3)

BUFT symbol "PING32_INST/I146_0" (output signal=_N0000, enable

signal=PING32_INST/I146_N1325)

BUFT symbol "PING32_INST/I147_0" (output signal=_N0000, enable

signal=M_ADDR_N)

BUFT symbol "PING32_INST/I148_0" (output signal=_N0000, enable

signal=PING32_INST/I148_N1325)

BUFT symbol "PING32_INST/I149_0" (output signal=_N0000, enable

signal=PING32_INST/I149_N1325)

BUFT symbol "PING32_INST/I150_0" (output signal=_N0000, enable

signal=PING32_INST/I150_N1325)

cannot be completed because it crosses a Keep Hierarchy boundary. The

original logic will remain intact."

Solution

Ensure that the UCF file includes the following constraints:

#

INST "*" KEEP_HIERARCHY = FALSE ;

#

NET "PCI_CORE/PCI_LC/FRAME-" S ;

NET "PCI_CORE/PCI_LC/REQ64-" S ;

NET "PCI_CORE/PCI_LC/IRDY-" S ;

NET "PCI_CORE/PCI_LC/DEVSEL-" S ;

NET "PCI_CORE/PCI_LC/ACK64-" S ;

NET "PCI_CORE/PCI_LC/TRDY-" S ;

NET "PCI_CORE/PCI_LC/STOP-" S ;

NET "PCI_CORE/PCI_LC/PERR-" S ;

NET "PCI_CORE/PCI_LC/SERR-" S ;

#

NET "PCI_CORE/PCI_LC/M_SRC_EN" S ;

NET "PCI_CORE/PCI_LC/S_SRC_EN" S ;

NET "PCI_CORE/PCI_LC/M_DATA_VLD" S ;

NET "PCI_CORE/PCI_LC/S_DATA_VLD" S ;

NET "PCI_CORE/PCI_LC/S_DATA" S ;

NET "PCI_CORE/PCI_LC/M_DATA" S ;

#

NET "PCI_CORE/PCI_LC/M_ADDR_N" S ;

#

AR# 19663
Date Created 09/03/2007
Last Updated 12/15/2012
Status Active
Type General Article