Re: [casper] system.twx missing

2013-10-03 Thread Andrea Mattana
I found the error. A Xilinx Accumulator block was configured with a number of bit less than the input width (just a typo), the update diagram do not report a warning/error message and the compilation went ahead till the timing check. The system.twx file in this case was missing. Thanks to all, C

Re: [casper] system.twx missing

2013-10-02 Thread Andrea Mattana
mmm yes I think that's the problem, I have read the system generator reference manual at the delay block page and should be definitely a problem to have big delay coupled with big data bus width. Thanks, I will try i a different way and will report the improvements (hopefully). Andrea 2013/10/2 A

Re: [casper] system.twx missing

2013-10-02 Thread Andrea Mattana
Thanks Jack, can be a z^-2048 delay?? Andrea 2013/10/2 Jack Hickish : > Hey Andrea, > > I think (http://www.xilinx.com/support/answers/23165.html) the ngc > file is all you're going to get, unless you run the compile again with > the XIL_TIMING_ALLOW_IMPOSSIBLE variable set to 1. > > Your error

Re: [casper] system.twx missing

2013-10-02 Thread Jack Hickish
Hey Andrea, I think (http://www.xilinx.com/support/answers/23165.html) the ngc file is all you're going to get, unless you run the compile again with the XIL_TIMING_ALLOW_IMPOSSIBLE variable set to 1. Your error is some specific component that has impossible timing constraints -- it's not just ge

Re: [casper] system.twx missing

2013-10-02 Thread Andrea Mattana
I'm sure, the directory is correct, because I do that very often, but in this case the system.twx is really missing. The only file readable from the timingan is a ngc file but I don't know how to investigate timing with that. Can be an issue related to the ADC or some resources ended? This is the

Re: [casper] system.twx missing

2013-10-02 Thread John Ford
> Hi all, > > I'm compiling a model file for ROACH1 but I have to solve some timing > constraints which are not met. Unfortunately, the system.twx file to > be opened with the timing analyzer which should be found in > XPS_R..BASE/implementations/ is missing. Hmm. If it got as far as the snapshot

Re: [casper] system.twx missing

2013-10-02 Thread G Jones
The timing was so bad that it didn't get beyond the mapping stage. Follow the instructions in the error message: "Please use the Timing Analyzer (GUI) or TRCE (command line) with the Mapped NCD" so run the $XILINX/settings64.sh and then timingan and use the "open design" option to open the system_

[casper] system.twx missing

2013-10-02 Thread Andrea Mattana
Hi all, I'm compiling a model file for ROACH1 but I have to solve some timing constraints which are not met. Unfortunately, the system.twx file to be opened with the timing analyzer which should be found in XPS_R..BASE/implementations/ is missing. Do you have an idea? Cheers, Andrea Running d