Transceiver toolkits example modification

Hello

I want to modify (sv_1ch_40b_10312mbps) trasciever toolkits example so that send GOLD codes sequence instead to PRBS .

I will use GOLD codes sequence to encode random data at transmiter side and decode it at reciever side and then check if there is error occurred.

I have tried to modify "altera_avalon_data_pattern_generator.v” file and Compile the project, program the device, and run the Transceiver Toolkit,When i run link tests, channel color highlights yellow .

Moreover , I have tried to make small modification in the design , for example in the below part of "altera_avalon_data_pattern_generator.v” file i replace the

prbs[0] <= prbs[0] ^ prbs[3] ^ prbs[4] ^ prbs[6] ;

instead

prbs[0] <= prbs[0] ^ prbs[3] ^ prbs[4] ^ prbs[5] ;

unfortunately , i have gotten the same problem .

part from "altera_avalon_data_pattern_generator.v” file

if (ST_DATA_W == 32) begin

always @(posedge aso_clk or posedge reset) begin

if (reset) begin

prbs <= ~0;

end else begin

if (state == ST_IDLE) begin

prbs <= ~0;

end

if (advance_prbs) begin

case (pattern_select)

SEL_PRBS_7 : begin

// PRBS 2^7-1 (T[7,6]) (parallel 40-bit serializer)

prbs[0] <= prbs[0] ^ prbs[3] ^ prbs[4] ^ prbs[5] ;

prbs[1] <= prbs[1] ^ prbs[4] ^ prbs[5] ^ prbs[6] ;

prbs[2] <= prbs[0] ^ prbs[2] ^ prbs[5] ;

.........

Can you please help me to solve my problem?

Thanks in advance.