Re: [casper] Hardware detail about KatADC board: the need for Pulse Engineering CX2156 transformer ?

2012-09-05 Thread Etienne Bauermeister
The balun is required to convert the single-ended clock input to a differential signal as required by the ADC. The balun is used on the two single-ended analogue inputs for the same reason. There are no baluns used on the data lines. On 9/6/2012 8:04 AM, Sharath Raju wrote: Hi, I underst

[casper] Hardware detail about KatADC board: the need for Pulse Engineering CX2156 transformer ?

2012-09-05 Thread Sharath Raju
Hi, I understand that a 1.5 GHz square-wave clock is fed to the KatADC board. There is a Pulse Engineering CX2156 1:1 transformer between the clock-in port and the clock pins of the ADC. What is the need for the transformer ? My guess is that it could have something to do with filtering out any s

[casper] ROACH_Udec

2012-09-05 Thread katherine viviana cortes urbina
Hi , I did the ROACH NFS guide, but when I like booting from NFS and I do run netboot , I saw BOOTP bradcast 1 , etc . Retry count exceeded; starting again. How Can I resolved? Cheers, Katty

Re: [casper] NB! Updates to the CASPER tools and libraries

2012-09-05 Thread Wesley New
Hi Dave, thanks for your comments. On Tue, Sep 4, 2012 at 5:28 PM, David MacMahon wrote: > Hi, Wes, > > Thanks for taking on this effort! Here are a few comments: > > On Sep 3, 2012, at 4:43 AM, Wesley New wrote: > > > Removing the following yellow blocks: > > XAUI - Only supported by BEE2 and i