Mar 2, 2004 #1 D davidlan Newbie level 2 Joined Mar 2, 2004 Messages 2 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 18 e1 frame vhdl Hi.All! Can anybody tell me how to find out a frame code, 6 bytes, from a 77MHz, 8 bits parallel data streaming which not allied. I would rather apreciate an source code. 8O
e1 frame vhdl Hi.All! Can anybody tell me how to find out a frame code, 6 bytes, from a 77MHz, 8 bits parallel data streaming which not allied. I would rather apreciate an source code. 8O
Mar 4, 2004 #2 L lucbra Advanced Member level 2 Joined Oct 30, 2003 Messages 511 Helped 73 Reputation 146 Reaction score 63 Trophy points 1,308 Location Belgium Activity points 3,251 vhdl t1 framer Make a register 6 bytes wide (or even more) and compare with sync. As soon as you have a match, you are synchronised.
vhdl t1 framer Make a register 6 bytes wide (or even more) and compare with sync. As soon as you have a match, you are synchronised.
Mar 7, 2004 #3 D ddt694 Full Member level 3 Joined Dec 12, 2002 Messages 170 Helped 4 Reputation 8 Reaction score 0 Trophy points 1,296 Activity points 1,400 xilinx and altera both have reference design, you can search in their web.
Mar 8, 2004 #4 C cd505 Junior Member level 2 Joined Dec 26, 2001 Messages 24 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 219 do it use shift reg.
Mar 8, 2004 #5 D davidlan Newbie level 2 Joined Mar 2, 2004 Messages 2 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 18 I think it is not need to use a register 6 bytes wide, because it used too many resource to me. thanks "ddt694", i will search it.
I think it is not need to use a register 6 bytes wide, because it used too many resource to me. thanks "ddt694", i will search it.
Mar 10, 2004 #6 A AlexK Junior Member level 2 Joined Sep 27, 2002 Messages 22 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 90 Try www.opencores.org. There You cam find exampoles of E1/T1 framer in VHDL. May be it'll help You.