1. About Aurora IP - 2023.1 English

Vitis Tutorials: Hardware Acceleration (XD099)

Document ID
XD099
Release Date
2023-08-02
Version
2023.1 English

The only different option when configuring the Aurora IP is the C_LINE_RATE, set this to 25.78125 Gbps, which can be generated by the 161.1328125 MHz reference clock.

set_property -dict [list CONFIG.C_AURORA_LANES {4} \
                         CONFIG.C_LINE_RATE {25.78125} \
                         CONFIG.C_REFCLK_FREQUENCY {161.1328125} \
                         CONFIG.C_INIT_CLK {100} \
                         CONFIG.interface_mode {Streaming} \
                         CONFIG.drp_mode {Native} \
                         CONFIG.SupportLevel {1}] \
             [get_ips aurora_64b66b_0]

In these configurations, the AXI stream ports data width per lane is still 64 bits, so the AXI stream interfaces work on 25.78125 GHz / 64 = 402.8 MHz.