Hi:
I'm using DS250DF230 in the design, and I'm doing the PRBS test. The link under test is like this:
322.265625MHz -> CABLE -> Retimer (10.3125Gbps) -> oscilloscope
I want to use the retimer to generate PRBS. But after I configured the registers, there're no signal outputs. My configuration sequence is shown below:
Referenced from Programmer's guide(SNLU182D)
// Configuration
0xFC, 0x01 , 0xFF
0xFF, 0x03 , 0x03
0x0A, 0x0C , 0x0C
0x60, 0x90 , 0xFF
0x61, 0xB3 , 0xFF
0x62, 0x90 , 0xFF
0x63, 0xB3 , 0xFF
0x64, 0xFF , 0xFF
0x09, 0x04 , 0x04
0x18, 0x10 , 0x70
0x1E, 0x00 , 0x10
0x0A, 0x00 , 0x0C
//PRBS gen
0x2E, 0x04 , 0x04
0x30, 0x01 , 0x03
0x1E, 0x10 , 0x10
0x79, 0x00 , 0x20
0x79, 0x20 , 0x20
0x30, 0x00 , 0x08
0x30, 0x08 , 0x08
0xA5, 0x80 , 0xE0
Any advice will be appreciated, thanks!