Re: [casper] Timing Errors ROACH2

2015-11-09 Thread Amit Bansod
Hi Ryan, I could get rid of those errors but the tool had hard time in placing with huge setup timing errors. How much utilization is good to set on p-blocks ? Currently, I had 60-70% for different components. Cheers, Amit On 05-Nov-15 9:46 AM, Ryan Monroe wrote: > Hi Amit, > > FYI, I am

Re: [casper] Timing Errors ROACH2

2015-11-09 Thread Ryan Monroe
Assuming that the pblock is not overlapping with any other pblocks, and that you have not constrained any other resources in the pblock, I have used 99% of the resources in a pblock (simply made it as small as possible). The trouble comes into play when there are resources which are not in

Re: [casper] Timing Errors ROACH2

2015-11-05 Thread Ryan Monroe
Hi Amit, FYI, I am CC'ing the CASPER list on all of these emails, so that they can be searchable for people in the future. The placements I gave you were for my personal design, and may not work for yours. When choosing pblock size, be sure to look at the pblock utilization in planahead.

Re: [casper] Timing Errors ROACH2

2015-11-04 Thread Ryan Monroe
np! the 10gbe core wasn't really intended to run at fast clock rates. Be sure to constrain it to the east-ish side of the chip, this is probably either a 1. device utilization issue (you are trying to do too much stuff on the chip), or 2. placement issue (probably this)-- the tools are