Merged r9433:9527 from features/gr-usrp2 into trunk. Adds usrp2 and gr-usrp2 top-level components. Trunk passes distcheck with mb-gcc installed, but currently not without them. The key issue is that when mb-gcc is not installed, the build system skips over the usrp2/firmware directory, and the firmware include files don't get put into the dist tarball. But we can't do the usual DIST_SUBDIRS method as the firmware is a subpackage.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@9528 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 17 insertions, 0 deletions

diff --git a/usrp2/fpga/sdr_lib/add2_reg.v b/usrp2/fpga/sdr_lib/add2_reg.v
new file mode 100644
index 000000000..456cf315b
--- /dev/null
+++ b/usrp2/fpga/sdr_lib/add2_reg.v
@@ -0,0 +1,17 @@
+
+module add2_reg
+  #(parameter WIDTH=16)
+    (input clk,
+     input [WIDTH-1:0] in1,
+     input [WIDTH-1:0] in2,
+     output reg [WIDTH-1:0] sum);
+
+   wire [WIDTH-1:0] sum_int;
+   
+   add2 #(.WIDTH(WIDTH)) add2 (.in1(in1),.in2(in2),.sum(sum_int));
+
+   always @(posedge clk)
+     sum <= sum_int;
+   
+endmodule // add2_reg
+