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Altera_Forum
Honored Contributor
17 years agocommunicatiom between external board running CDR and FPGA
hi all i need your help please. communication between external board running CDR and FPGA I am working in connecting Startix Gx 'EP1SGX40GF1020C5' FPGA with external board . the board...
Altera_Forum
Honored Contributor
17 years agoThere are several serial protocols or use your own, for example pass bits to 850Mbps by first passing your data(as packet + header) followed by alternating zero/ones till next packet. You will need another fpga to do that...the receiver will then detect packets from the agreed header(FSM).
Your own CDR: Before serdes era, we used to do that inside fpgas. There is plenty of literature, check xilinx papers. I will try to get some hopefully tomorrow.