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, 22 insertions, 0 deletions

diff --git a/sdr_lib/hb/ram32_2sum.v b/sdr_lib/hb/ram32_2sum.v
new file mode 100644
index 000000000..d1f55b7d0
--- /dev/null
+++ b/sdr_lib/hb/ram32_2sum.v
@@ -0,0 +1,22 @@
+
+
+module ram32_2sum (input clock, input write, 
+		   input [4:0] wr_addr, input [15:0] wr_data,
+		   input [4:0] rd_addr1, input [4:0] rd_addr2,
+		   output reg [15:0] sum);
+   
+   reg [15:0] 			ram_array [0:31];
+   wire [16:0] 			sum_int;
+   
+   always @(posedge clock)
+     if(write)
+       ram_array[wr_addr] <= #1 wr_data;
+
+   assign sum_int = ram_array[rd_addr1] + ram_array[rd_addr2];
+
+   always @(posedge clock)
+     sum <= #1 sum_int[16:1] + (sum_int[16]&sum_int[0]);
+
+   
+endmodule // ram32_2sum
+