If you've got a ROACH2, there's not much point in getting started on a ROACH1, the tools are more mature on a ROACH2.
I can't provide much support myself, but there are other users in the mailing list who might be able to get you started. On Fri, Oct 20, 2017 at 12:42 PM, Siddharth Savyasachi Malu < [email protected]> wrote: > Thank you, James, for your reply. I have tried ROACH2v2, and the > programmer working with me had some issues porting their ROACH1 design to > ROACH2. However, it looks like ROACH2 would be the way to go, and that the > ADC16x250-8 is usable only with ROACH2 currently. > > In this context, may I ask if there is someone who has experience setting > up ADC16x250-8 with ROACH2, with 4 or 8 inputs? Also, can a single ROACH2v2 > board have two of these ADCs? > > Also, I think it would be worthwhile starting with a smaller version of an > interferometer, say a 4-element, 250 MHz bandwidth version. Is there any > chance I might be able to borrow a ROACH1 for about 3 months, if anyone has > an old board they aren't using anymore? > > Thanks, > Siddharth > > On Fri, Oct 20, 2017 at 3:58 PM, James Smith <[email protected]> wrote: > >> Siddharth, >> >> ROACH1 is quite deprecated now, we don't recommend it for new projects. >> There are still a number of them floating around, but no active development >> on the libraries to support them. >> >> I don't know of any ADCs with more than 2 inputs. You'd also be quite >> pressed to fit a full 16-element correlator onto a single ROACH. With a >> ROACH2 you may manage if it's simple. >> >> Regards, >> James >> >> >> On Fri, Oct 20, 2017 at 12:26 PM, Siddharth Malu < >> [email protected]> wrote: >> >>> Dear CASPERites, >>> >>> Many, thanks, Indrajit, for your reply. Are there ADCs that can be used >>> with ROACH1 and have more than 2 inputs? I am starting from scratch, and as >>> far as I can see from CASPER websites, it would be easier to set up ROACH1 >>> as compared to ROACH2, and given the large number of ROACH1 users, it may >>> be easier to get help on ROACH1. But I'd very much like to hear opinions >>> from CASPERites about this. >>> >>> Many thanks, and look forward to your replies. >>> >>> Best regards, >>> Siddharth >>> >>> On Fri, Oct 20, 2017 at 11:56 AM, Indrajit Vittal Barve < >>> [email protected]> wrote: >>> >>>> Dear siddharth, >>>> >>>> Please go through this message. ADC16 is not (yet?) supported on >>>> ROACH1. So consider with ROACH 2. >>>> >>>> >>>> >>>> https://www.mail-archive.com/[email protected]/msg06320.html >>>> >>>> >>>> >>>> With regards >>>> Indrajit >>>> On 20 Oct 2017 11:25 am, Siddharth Savyasachi Malu < >>>> [email protected]> wrote: >>>> >>>> Dear CASPERites, >>>> >>>> I am trying to design a cheap 16-element interferometer using a ROACH1 >>>> board with 250-500 MHz bandwidth. Would you suggest the ADC16x250-8 for >>>> this purpose? >>>> >>>> Best regards, >>>> Siddharth >>>> -- >>>> Siddharth Malu >>>> Centre of Astronomy >>>> Indian Institute of Technology Indore >>>> Indore, India >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "[email protected]" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To post to this group, send email to [email protected]. >>>> >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "[email protected]" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> >> >> > -- You received this message because you are subscribed to the Google Groups "[email protected]" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected].
