How do I enable serial loopback in Serial RapidIO IP core? - How do I enable serial loopback in Serial RapidIO IP core? Description In the Quartus® II software version 13.1 and earlier, the Serial RapidIO ® IP core does not have a register or a port in top level module that enables serial loopback. Resolution To enable serial loopback, modify the av_xcvr_custom_nr module in the Serial RapidIO IP core and set the rx_seriallpbken port of av_xcvr_custom_native high. When the rx_seriallpbken is high, serial loopback is enabled. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] novalue 13.1 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']