Re: [casper] FFT on ROACH
Hi Andrea, The first thing I would do is delete the fft and replace it with one from your updated library, using the same parameters of course. If you're still having the problem, I would try running the mask script from the matlab command prompt to get a more verbose output. To see how the mask script is called, right click on the block and select 'view mask,' then select the 'initialization' tab. Mark On Mon, Aug 30, 2010 at 4:19 AM, Andrea Mattana wrote: > Hi All, > > I'm a Medicina Radiotelescopes (Italy) team member, my name is Andrea > Mattana, I'm working here since January to develop a new acquisition > system for SETI based on the CASPER ROACH board. > > I have started to work using the libraries available on the SVN > repository and in June I have done the migration on GIT following your > instractions and now I'm very up-to-date. > > I have some problems in using the CASPER FFT libraries, the drawings > seems to do not update after changing parameters. When I try to look > under mask (i.e. on fft_biplex_real_2x) there are no connections at all > between blocks, while many other casper blocks works nominally. I have > seen on the GIT commit log an update done by David MacMahon on those > blocks, I don't know if he is the right person that can help me anyway > I'm very happy to hear any suggestion to fix the problem from you all. > > The developing system I use it is a Linux Centos release 5.5 64 bit, > Matlab R2009b, Xilinx 11.4. > > Kind regards, > >Andrea Mattana > > > --- > > Andrea Mattana > > Istituto Nazionale di Astrofisica > Istituto di RadioAstronomia > > Stazione di Medicina > Via Fiorentina 3508/B > I-40059 Medicina (BO) > Tel +39-051-6965834 > Fax +39-051-6965810 > > >
Re: [casper] FFT on ROACH
Hi, Andrea, On Aug 30, 2010, at 1:19 , Andrea Mattana wrote: I have some problems in using the CASPER FFT libraries, the drawings seems to do not update after changing parameters. When I try to look under mask (i.e. on fft_biplex_real_2x) there are no connections at all between blocks, while many other casper blocks works nominally. Do you have the casper_library directory in your MATLAB path? You can check by typing... which fft_biplex_real_2x_init ...at the MATLAB prompt. If this is not found, then you do need to add the casper_library directory to your MATLAB path using the "addpath" function. If it is found, then you can try to invoke that init function manually (look at the mask init commands to get an idea of how to invoke it) and see what errors, if any, you get. Hope this helps, Dave
Re: [casper] FFT on ROACH
hi andrea, you might be interested in other roach based seti systems: laura spitler ported the 128 million channel bee2 seti spectrometer to roach, and terry filiba developed a roach/GPU seti spectrometer, where roach digitizes data, breaks it up into sub-bands using a polyphase filter bank, and sends each sub-band to a cpu/gpu for high resolution spectroscopy. best wishes, dan On 8/30/2010 1:19 AM, Andrea Mattana wrote: Hi All, I'm a Medicina Radiotelescopes (Italy) team member, my name is Andrea Mattana, I'm working here since January to develop a new acquisition system for SETI based on the CASPER ROACH board. I have started to work using the libraries available on the SVN repository and in June I have done the migration on GIT following your instractions and now I'm very up-to-date. I have some problems in using the CASPER FFT libraries, the drawings seems to do not update after changing parameters. When I try to look under mask (i.e. on fft_biplex_real_2x) there are no connections at all between blocks, while many other casper blocks works nominally. I have seen on the GIT commit log an update done by David MacMahon on those blocks, I don't know if he is the right person that can help me anyway I'm very happy to hear any suggestion to fix the problem from you all. The developing system I use it is a Linux Centos release 5.5 64 bit, Matlab R2009b, Xilinx 11.4. Kind regards, Andrea Mattana --- Andrea Mattana Istituto Nazionale di Astrofisica Istituto di RadioAstronomia Stazione di Medicina Via Fiorentina 3508/B I-40059 Medicina (BO) Tel +39-051-6965834 Fax +39-051-6965810
[casper] FFT on ROACH
Hi All, I'm a Medicina Radiotelescopes (Italy) team member, my name is Andrea Mattana, I'm working here since January to develop a new acquisition system for SETI based on the CASPER ROACH board. I have started to work using the libraries available on the SVN repository and in June I have done the migration on GIT following your instractions and now I'm very up-to-date. I have some problems in using the CASPER FFT libraries, the drawings seems to do not update after changing parameters. When I try to look under mask (i.e. on fft_biplex_real_2x) there are no connections at all between blocks, while many other casper blocks works nominally. I have seen on the GIT commit log an update done by David MacMahon on those blocks, I don't know if he is the right person that can help me anyway I'm very happy to hear any suggestion to fix the problem from you all. The developing system I use it is a Linux Centos release 5.5 64 bit, Matlab R2009b, Xilinx 11.4. Kind regards, Andrea Mattana --- Andrea Mattana Istituto Nazionale di Astrofisica Istituto di RadioAstronomia Stazione di Medicina Via Fiorentina 3508/B I-40059 Medicina (BO) Tel +39-051-6965834 Fax +39-051-6965810
