Hi Rolando
The error you got means that the place and route program used to convert
your design into logic in the FPGA has not been able to design things so
that your design will operate at the clock rate you wanted. This often
happens as the design gets larger and logic resources become
constrained. To understand the basics of what I am saying this might
help (https://en.wikipedia.org/wiki/Static_timing_analysis) although
some of it is quite technical.
You might want to try the spectrometer out with 1024 channels and then
move onto the correlator you want to build. Solving this error might
take time and is unnecessary for your final goal.
If you want to solve it then you can look in <your design
name>/BEE_XPS_IBOB_base/implementation/system.twr. This will show you
where the timing errors are located. You can then think of ways to make
it easier for the place and route program to allocate things in the
FPGA. Solving timing errors is a large topic.
Regards
Andrew
HAPPY NEW YEAR 2014 CASPER !!!!
I succeeded compile a IBOB+QUADC spectrometer !!! :-)
I compile for 256, 512 and 1024 channels without problems, but when I
trying to compile for 2048 channels arose the following error:
xflow done!
touch __xps/system_routed
xilperl C:/Xilinx/10.1/EDK/data/fpga_impl/observe_par.pl
<http://observe_par.pl> -error yes implementation/system.par
Analyzing implementation/system.par
********************************************************************************
ERROR: 1 constraint not met.
PAR could not meet all timing constraints. A bitstream will not be
generated.
To disable the PAR timing check:
1> Disable the "Treat timing closure failure as error" option from the
Project Options dialog in XPS.
OR
2> Type following at the XPS prompt:
XPS% xset enable_par_timing_error 0
********************************************************************************
make: *** [implementation/system.bit] Error 1
ERROR:MDT - Error while running "make -f system.make init_bram"
No changes to be saved in MSS file
Saved project XMP file
Error using ==> gen_xps_files at 680
Programation files generation failed, EDK compilation probably also
failed.
Can anyone advise about this error?
Best Regards
Rolando Paz
