From a170b9b42345794429486dd4f3316e84ea2cc871 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Fri, 22 Jan 2010 11:46:58 -0800 Subject: Moved usrp1 fpga files into usrp1 subdir. --- usrp1/sdr_lib/hb/ram32_2sum.v | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 usrp1/sdr_lib/hb/ram32_2sum.v (limited to 'usrp1/sdr_lib/hb/ram32_2sum.v') diff --git a/usrp1/sdr_lib/hb/ram32_2sum.v b/usrp1/sdr_lib/hb/ram32_2sum.v new file mode 100644 index 000000000..d1f55b7d0 --- /dev/null +++ b/usrp1/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 + -- cgit v1.2.3