AnsweredAssumed Answered

Could you explain the meaning of "back pressure" in

Question asked by yanjiesh on Jan 28, 2015
Latest reply on Jan 31, 2015 by yanjiesh

Dear all,


Today I have been studying ADI Reference Designs HDL User Guide [Analog Devices Wiki] again ever since I built the Zedboard and AD-FMCOMMS3 system project last month.


I saw "back pressure" appeared when talking about the AXI-stream interface.


Here are those original words: The important thing is understanding how back-pressure is handled, not finding signal equivalents. The ADC supports NO back-pressure mechanism. You must accept data on the bus in definite time intervals (defined by the sampling rate). There are no exceptions.


I don't understand what are signal equivalent or what is back-pressure?