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Visitor likesky
Visitor
2,963 Views
Registered: ‎06-16-2015

how to use 2 x1 srio lanes in spartan6

i can use single x1 mode of srio in spartan6,but the data rate is not enough, so i want to add another lane, i want 2x1 mode,but i do not know how to do that

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Xilinx Employee
Xilinx Employee
2,939 Views
Registered: ‎02-06-2013

Re: how to use 2 x1 srio lanes in spartan6

Hi

 

You can use two instances of the  X1 core  for  your application.

 

 

Regards,

Satish

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Xilinx Employee
Xilinx Employee
2,900 Views
Registered: ‎08-01-2008

Re: how to use 2 x1 srio lanes in spartan6

refer page 41
https://www.xilinx.com/support/documentation/ip_documentation/srio_ug503.pdf
Thanks and Regards
Balkrishan
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Visitor likesky
Visitor
2,612 Views
Registered: ‎06-16-2015

Re: how to use 2 x1 srio lanes in spartan6

i use two instance as you recommanded, but i have error in ucf file, here is my code

NET "srio_txp0" LOC = B4;
NET "srio_txn0" LOC = A4;
NET "srio_rxp0" LOC = D5;
NET "srio_rxn0" LOC = C5;
NET "sys_clkp" LOC = B8 ; # MGT101
NET "sys_clkn" LOC = A8 ; # MGT101
NET "srio_txp1" LOC = B6;
NET "srio_txn1" LOC = A6;
NET "srio_rxp1" LOC = D7;
NET "srio_rxn1" LOC = C7;
NET "sys_clkp1" LOC = D9 ; # MGT101
NET "sys_clkn1" LOC = C9 ; # MGT101
INST "u_camera_process/inst_test_srio_top/rio_de_wrapper/phy_wrapper_inst/srio_gt_wrapper/gtp_wrapper_i/tile0_gtp_wrapper_i/gtpa1_dual_i" LOC = "GTPA1_DUAL_X0Y0";# lane0	
INST "u_camera_process/inst_test_srio_top/phy_1x_ser_clk/u_refclk_ibufds" IOSTANDARD = LVDS_25;
NET "u_camera_process/inst_test_srio_top/UCLK"      TNM_NET = "UCLK";
NET "u_camera_process/inst_test_srio_top/UCLK2"      TNM_NET = "UCLK2";
NET "u_camera_process/inst_test_srio_top/LNK_CLK"      TNM_NET = "LNK_CLK";		
# For GTP operation at 1.25 GHz
TIMESPEC "TS_UCLK"    = PERIOD "UCLK"  16.0 ns HIGH 50 % INPUT_JITTER 100 ps PRIORITY 0;
TIMESPEC "TS_UCLK2" = PERIOD "UCLK2" "TS_UCLK" / 2 HIGH 50 % INPUT_JITTER 100 ps PRIORITY 1;
TIMESPEC "TS_LNK_CLK" = PERIOD "LNK_CLK" "TS_UCLK" * 4 HIGH 50 % INPUT_JITTER 100 ps PRIORITY 1;

INST "u_camera_process/inst_test_srio_top_1/rio_de_wrapper/phy_wrapper_inst/srio_gt_wrapper/gtp_wrapper_i/tile0_gtp_wrapper_i/gtpa1_dual_i" LOC = "GTPA1_DUAL_X0Y0";# lane0	
INST "u_camera_process/inst_test_srio_top_1/phy_1x_ser_clk/u_refclk_ibufds" IOSTANDARD = LVDS_25;
NET "u_camera_process/inst_test_srio_top_1/UCLK"      TNM_NET = "UCLK1";
NET "u_camera_process/inst_test_srio_top_1/UCLK2"      TNM_NET = "UCLK21";
NET "u_camera_process/inst_test_srio_top_1/LNK_CLK"      TNM_NET = "LNK_CLK1";		
# For GTP operation at 1.25 GHz
TIMESPEC "TS_UCLK1"    = PERIOD "UCLK1"  16.0 ns HIGH 50 % INPUT_JITTER 100 ps PRIORITY 0;
TIMESPEC "TS_UCLK21" = PERIOD "UCLK21" "TS_UCLK1" / 2 HIGH 50 % INPUT_JITTER 100 ps PRIORITY 1;
TIMESPEC "TS_LNK_CLK1" = PERIOD "LNK_CLK1" "TS_UCLK1" * 4 HIGH 50 % INPUT_JITTER 100 ps PRIORITY 1;

and the error is

ERROR:Pack:2811 - Directed packing was unable to obey the user design
   constraints (LOC=GTPA1_DUAL_X0Y0) which requires the combination of the
   symbols listed below to be packed into a single GTPA1_DUAL component.

 so, i do not how to solve this error.

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