Hello everyone,
I got "ERROR:MapLib:979 - LUT4 symbol" during the compiling proccess (a lot of ERRORs like this one), and I discovered that the reason for my problem is MEMORY BLOCK.
To be sure that the problem is in this block, I made very simple project in LabView 2009 (on FPGA Target PCI5640R) just with usage of this block as you can see on attached picture as well as in file test_memory block.lvproj on attached link: https://www.dropbox.com/sh/u87f1oihelmm4dq/Jo_6-bICSf
I have a problem with compiling VI with this block, and I get so many ERRORs like:
ERROR:MapLib:979 - LUT4 symbol
"window/theVI/n_00000036/nSCTL_00000013_00000014/n_000000A3/cOutLoc<0>1"
(output signal=window/theVI/res000001ed_wi<2>) has input signal
"window/theVI/res0000020d_wo<1>" which will be trimmed. See Section 5 of the
Map Report File for details about why the input signal will become undriven.
or
ERROR:MapLib:978 - LUT4 symbol
"window/theVI/n_00000036/nSCTL_00000013_00000014/n_000000A3/cOutLoc<23>1"
(output signal=window/theVI/res000001ed_wi<25>) has an equation that uses
input pin I2, which no longer has a connected signal. Please ensure that all
the pins used in the equation for this LUT have signals that are not trimmed
(see Section 5 of the Map Report File for details on which signals were
trimmed).
Whole report you can see in file report.txt on attached link.
I would really appreciate if anyone could take a look on my problem with simple project and suggest me a solution.
I'm really stuck with my bigger project that need to have this memory block.
I'm looking forward to hear from you,
King Regards
ing. Damir Hamidovic