FPGA szintezis/mapping problema

[hoyuka]

Sziasztok!

Mit jelenthetnek az alabbi hibauzenetek? Mi az a kombinacios ciklus? Mi
okozhat ilyen problemakat? Mit erdemes nezegetni, hogy rajojjek, hogy mi a
baja?

Szintezis reportban:

WARNING:Xst:2170 - Unit PWMLEDLine : the following signal(s) form a
combinatorial loop: selCnt<1>.
WARNING:Xst:2170 - Unit PWMLEDLine : the following signal(s) form a
combinatorial loop: selCnt<0>.


Map reportban:

ERROR:MapLib:661 - LUT4 symbol "mm/out<0>" (output signal=BCDDigit<0>) has
input
   signal "selCnt<1>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<0>" (output signal=BCDDigit<0>) has
input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT3 symbol "mm/out<0>_SW0" (output signal=N791) has input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<1>" (output signal=BCDDigit<1>) has
input
   signal "selCnt<1>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<1>" (output signal=BCDDigit<1>) has
input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT3 symbol "mm/out<1>_SW0" (output signal=N771) has input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<2>" (output signal=BCDDigit<2>) has
input
   signal "selCnt<1>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<2>" (output signal=BCDDigit<2>) has
input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT3 symbol "mm/out<2>_SW0" (output signal=N731) has input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<3>" (output signal=BCDDigit<3>) has
input
   signal "selCnt<1>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT4 symbol "mm/out<3>" (output signal=BCDDigit<3>) has
input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.
ERROR:MapLib:661 - LUT3 symbol "mm/out<3>_SW0" (output signal=N751) has input
   signal "selCnt<0>" which will be trimmed. See the trim report for details
   about why the input signal will become undriven.

udv.
hoyuka

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