Hi:
I'm using DS250DF230 in the design, and I'm doing the PRBS test. The link under test is like this:
Retimer -> SFP -> CABLE -> SFP -> Retimer
I want to use one retimer to generate PRBS, and use the other one to check PRBS. But after I configured the registers, there're no signal detected. My configuration sequence is shown below:
Referenced from Programmer's guide(SNLU182D)
Common Configuration:
0xff 0x03
0x00 0x04
0x0a 0x0c
0x60 0x90
0x61 0xb3
0x62 0x90
0x63 0xb3
0x64 0xff
0x09 0x04
0x18 0x10
0x1e 0xe1
0x31 0x40
0x0a 0x00
Enable generator:
0x2e 0x04
0x30 0x01
0x1e 0xf1
0x79 0x10
0x79 0x30
0x30 0x01
0x30 0x09
0xa5 0x80
Enable checker:
0x0d 0x00
0x79 0x50
0x30 0x00
0x30 0x08
0x30 0x18
0x30 0x08
0x82 0x40
0x82 0x00
Any advice will be appreciated, thanks!