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| author | Matt Ettus <matt@ettus.com> | 2011-01-06 11:07:30 -0800 |
|---|---|---|
| committer | Matt Ettus <matt@ettus.com> | 2011-06-07 14:42:58 -0700 |
| commit | e7eb44d5abc1021972c07c4b867c98c8223eca2b (patch) | |
| tree | 2d6e9fb1ef9d72a455a99e0afe628393193c3d3c | |
| parent | 795969261ce4abdc4e58ca0ca61900b3227779d9 (diff) | |
| download | uhd-e7eb44d5abc1021972c07c4b867c98c8223eca2b.tar.gz uhd-e7eb44d5abc1021972c07c4b867c98c8223eca2b.tar.bz2 uhd-e7eb44d5abc1021972c07c4b867c98c8223eca2b.zip | |
first cut at using lvds for adc pins
| -rw-r--r-- | usrp2/top/u2plus/capture_ddrlvds.v | 4 | ||||
| -rw-r--r-- | usrp2/top/u2plus/u2plus.v | 1 |
2 files changed, 3 insertions, 2 deletions
diff --git a/usrp2/top/u2plus/capture_ddrlvds.v b/usrp2/top/u2plus/capture_ddrlvds.v index b9f53ff8c..ff1b586e2 100644 --- a/usrp2/top/u2plus/capture_ddrlvds.v +++ b/usrp2/top/u2plus/capture_ddrlvds.v @@ -16,13 +16,13 @@ module capture_ddrlvds wire [(2*WIDTH)-1:0] out_pre1; reg [(2*WIDTH)-1:0] out_pre2; - IBUFGDS #(.IOSTANDARD("LVDS_25"),.DIFF_TERM("TRUE")) clkbuf (.O(ssclk), .I(ssclk_p), .IB(ssclk_n)); + IBUFGDS #(.IOSTANDARD("LVDS_33"),.DIFF_TERM("TRUE")) clkbuf (.O(ssclk), .I(ssclk_p), .IB(ssclk_n)); genvar i; generate for(i = 0; i < WIDTH; i = i + 1) begin : gen_lvds_pins - IBUFDS #(.IOSTANDARD("LVDS_25"),.DIFF_TERM("TRUE")) ibufds + IBUFDS #(.IOSTANDARD("LVDS_33"),.DIFF_TERM("TRUE")) ibufds (.O(ddr_dat[i]), .I(in_p[i]), .IB(in_n[i]) ); IDDR2 #(.DDR_ALIGNMENT("C1")) iddr2 (.Q0(out_pre1[2*i]), .Q1(out_pre1[(2*i)+1]), .C0(ssclk), .C1(~ssclk), diff --git a/usrp2/top/u2plus/u2plus.v b/usrp2/top/u2plus/u2plus.v index 7c2270df6..eb99de86c 100644 --- a/usrp2/top/u2plus/u2plus.v +++ b/usrp2/top/u2plus/u2plus.v @@ -1,4 +1,5 @@ `timescale 1ns / 1ps +`define LVDS 1 //`define DCM_FOR_RAMCLK ////////////////////////////////////////////////////////////////////////////////// |