Hi Hong, It still didn't work. It seems that all blocks of FFT have the same problems. When I looked under mask of the block fft_biplex_real_4x. I saw disabled link (seeing the attachment). I am confused. The version of casper_library I am using is 7.4 and that of casper_library_ffts is 7.2. Thanks Lean
At 2012-11-18 06:57:35,"Hong Chen" <chen.hong.1...@gmail.com> wrote: Hi Lean, The version of various components of the development environment can be quite tricky to deal with - many of them are not back-ward compatible, unfortunately (including Matlab, Xilinx, and Casper libraries). But your Matlab & Xilinx versions look fine to me. Looking at the error message you got, I suspect it's a Casper library related problem - which version of CASPER library (mlib_devel) are you using? If you try a fresh copy of fft_wideband_real from the library browser (drag the fft_wideband_real from the library browser and drop it into your design, change its parameters to those that you want, and delete the old one), and do a ctrl-D, do you still see this error? Thanks, Hong On Fri, Nov 16, 2012 at 7:55 AM, shu.lean <shu.l...@163.com> wrote: Hi Hong， Thanks for your suggestion. Now I have a question about the version of the matlab simulink . Is any version newer than the casper libraries‘ Ok？ or I have to use the same version that designed the libraries？ I get xinlinx 13.4 /system generator 13.4 and matlab 7.12/simulink 7.7 ,but some blocks in the casper library are unavailable（e.g FFT, when I start the simulation , it shows block error :Error in 'FFT_undone/fft_wideband_real/fft_biplex_real_4x0/biplex_core/fft_stage_3/butterfly_direct/twiddle_general_4mult': Initialization commands cannot be evaluated model error :There is no block named 'casper_library_ffts_twiddle_coeff_gen/coeff_gen' but I see a block named coeff_gen in the library. At 2012-11-15 13:46:50,"Hong Chen" <chen.hong.1...@gmail.com> wrote: Hi Lean, I'm the current developer/maintainer of the correlator library. My apologize for the empty content, but we (I mean, I) have been having some issues with the library versions and compatibility in general, and most of the blocks in this library are newly designed and are all kind of in rough condition, so I don't think this library is ready to be released at this moment. I will keep you posted on the progress if you'd like that. If you are interested, there are various CASPER correlator design projects that are available, you might want to check out the wiki page for Casper correlator collaboration. Some projects are available on github (e.g. PAPER in Berkeley, and some Oxford projects, I believe), some are available on SVN repositories (e.g. some earlier South African correlator developments). You can probably find links on their project webpages, or email specific designers for information. There are a lot of resources for correlator in Casper, but unfortunately they are kind of scattered and lacking documentation. I'm working on making the library as general purpose as possible, and trying to do some relatively detailed documentation. But again, that's work in progress. If you have some specific questions with regard to correlator designs, please do not hesitate to email casper list. There are lots of correlator designers around that might be able to help you. Just when it comes to this correlator library, it's just me for now. Sorry for the delay (I intended to do first release in September), but I'm working on that. Regards, Hong On Fri, Nov 9, 2012 at 7:23 PM, shu.lean <shu.l...@163.com> wrote: Dear Casperites, I am a graduate student . And I am new in this field. I want to know where can I get the casper library since I can't get any sources from the link https://github.com/casper-berkeley/correlator_library . Would you send me a link or an attachment? Thank you very much. lean
<<attachment: fft_biplex_real_4x.png>>
