[casper] Hardware Porting Meeting & Developer Busy Week 2020

2019-10-11 Thread Jack Hickish
Hello, again! In addition to the CASPER meeting, there are smaller gatherings (typically no more than ~20 people) for those specifically interested in adding support for new hardware to the CASPER ecosystem, and improving the CASPER toolflow. These gatherings are informally organised, based on

[casper] CASPER Annual Workshop 2020 -- invitation for expressions of interest

2019-10-11 Thread Jack Hickish
Dear All, Shockingly, it has already been almost two months since the 2019 CASPER workshop in Cambridge, MA, and it is now time to start thinking about the 2020 meeting. As is now standard practice, the CASPER advisory board is soliciting bids to host the 2020 CASPER community meeting. We ask

Re: [casper] SNAP ADC at 1GSps

2019-10-11 Thread Nitish Ragoomundun
Hi, Thank you very much for your replies. The temperature being a possible cause is quite interesting. Actually for our project we need 250 MSps on 12 channels. I am still in the learning process so I set myself a mini project and I thought I'll program the SNAP just to output a spectrum. I have

Re: [casper] SNAP ADC at 1GSps

2019-10-11 Thread Ross Martin
Hi Nitish, The reason that the ADC worked the first time *might* be temperature. When parts are cooler, they often can run at higher speeds. It might be that the first time you ran it was before the board got warm, and that's why it worked. Then later the board had warmed up, which changes

Re: [casper] SNAP ADC at 1GSps

2019-10-11 Thread Dan Werthimer
hi nitish, i don't think there's an easy way to make all three adc's work at 1 Gsps. i think one of the adc's works reliably at 1 Gsps. the other two work reliably around 950 Msps. (i'm not sure about this number). if 950 Msps isn't enough for your application, you could play around with the

[casper] SNAP ADC at 1GSps

2019-10-11 Thread Nitish Ragoomundun
Hi, I read from the SNAP wiki page that we can operate the SNAP board ADCs at 1GSps with 3 channels of input. So, I modified the CASPER SNAP tutorial 3 to make the ADC work at 1GSps to obtain a 1 channel spectrometer with a spectrum of 500 MHz. First I modified the SNAP User IP Clock Rate to 250