Hi Pedro, The VEGAS 1024 channel National ADC design works fine. There is an issue with the ADC yellow block at such high speeds where it sometimes requires reprogramming the FPGA 2-3 times to get the data properly in synch, but otherwise the design works fine.
Glenn On Fri, Oct 26, 2012 at 8:36 PM, Pedro Sánchez <[email protected]> wrote: > Hi Dan! > > I had talked a lot with him about the VEGAS repository, and he told me about > some errors in the models with the National ADC, but for now he was very > busy to try to correct them. So, for that reason I'm trying to get from > other source a working model. > > Regards! > > On Fri, Oct 26, 2012 at 4:11 PM, Dan Werthimer <[email protected]> > wrote: >> >> >> >> hi pedro, >> >> as i mentioned before, mark wagner has developed and tested exactly what >> you requested: >> >> a two input spectrometer for for the vegas instrument at greenbank (nrao). >> it does full stokes (so it's a two input correlator), uses the national >> adc083000 >> and samples at 3 Gsps, 1024 channels. >> >> mark can tell you where the design files are. >> >> dan >> >> >> >> On Fri, Oct 26, 2012 at 12:58 PM, Pedro Sánchez <[email protected]> >> wrote: >>> >>> Hi everyone! >>> >>> I'm trying to develop a model of a correlator using the National ADC (the >>> adc083000 yellow block), but now I'm having a lot of problems compiling the >>> model with the latest setup and libraries. So I wonder if any of you have a >>> working bof file of a correlator using that ADC card. I'll only work with 2 >>> inputs, 1.5 GHz bandwidth and 1024 channels. >>> >>> My best regards and thanks in advance. >>> >>> >>> -- >>> Pedro Sánchez M. >>> Universidad de Chile >>> Facultad de Ciencias Físicas y Matemáticas >>> Departamento de Instrumentación Astronómica >> >> > > > > -- > Pedro Sánchez M. > U. de Chile, FCFM
