Re: Channel/interface limitation between tiles or per functi
Posted: Fri Jun 10, 2016 9:09 am
Just a note on the feedback you have given about the nature of your traffic - A few words every few milliseconds is extremely sparse. Given the switch can handle 250Mbps on each path (more on the same tile), this is down in the noise. Also, I was looking for cases of transferring large blocks, which could block paths. 450b is not particularly large and will not block for long (2us). So it is not the volume/nature of traffic causing an issue here.
I don't think it does. You can transfer 8b chunks over channels using the xs1.h built ins outuchar and inuchar (which can also give you some nice buffering advantages - longer FIFO in channel) but means writing your own protocol and it simply isn't worth it for the (tiny) amount of data you are passing around.I'm not trying to stream massive amounts of data. If I specify variables to be 8 bit would it actually transfer just 8 bits?