Demonstration

20

This section describes the procedures of running the demonstration

FPGA Configuration

Demonstration Setup, File Locations, and Instructions

Transceiver Loopback Test Demo:



Project directory: sfp_hsmb_s4gx_pcie_xcvr_loopback_6p25Gbps_restored



Bit Stream used: hsmc_loopback.sof



SFP HSMC Setup



Insert SFP modules with loopback connectors into SFP ports 0-3 on the SFP HSMC board



Set SW5 switches on the SFP HSMC all to the “0” position



Stratix IV GX FPGA Development Kit Setup



Set SW3 switches 1-3 & 5-8 in the “down” position.



Set SW3 switch 4 in the “up” position



Set SW4 switches 1,2,4 in the “up” position and switches 3,5,6,8 in the “down” position



Set the rotary switch (SW2) to the 0 position



Power

on

the

Stratix

IV

GX

FPGA Development

Board

and

download

the

SOF

file

(hsmc_loopback.sof)



Press and release CPU reset button located on the host board to initiate the test



Press and release PB0, enabling comma detect



Press and release PB1 enabling channel bonding



Press and release PB2, start transmitting PRBS data



LED0, LED1, and LED2 should be ON and LED3 should be OFF.



Remove one of the SFP modules or one side of a connector so that the loopback will fail.

A Failure

is indicated on the Stratix IV GX FPGA Dev Kit when LED3 turns ON



To reset the board test system, press and release the CPU reset button on the host board



Press and release PB1 and PB2 at the same time creates an error in the transmitter data stream,

where LED3 should be ON



Press and release, the CPU reset button on the host board and verify the results

LVDS Loopback Test Demo:



Project directory: sfp_hsmb_s4gx_pcie_lvds_loopback_restored



Bit Stream used: hsmc_loopback.sof



SFP HSMC Setup



Insert SFP modules with loopback connectors into SFP ports 4-7 on the SFP HSMC board



Set SW4 switches on the SFP HSMC all to the “1” position



Stratix IV GX FPGA Development Kit Setup



Set SW3 switches 1-4 & 6-8 in the “down” position.



Set SW3 switch 5 in the “up” position



Set SW4 switches 1,2,4 in the “up” position and switches 3,5,6,8 in the “down” position