From 05d77f772317de5d925301aa11bb9a880656dd05 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Thu, 15 Apr 2010 11:24:24 -0700 Subject: moved usrp1 and usrp2 fpga dirs into fpga subdirectory --- fpga/usrp2/control_lib/wb_ram_dist.v | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 fpga/usrp2/control_lib/wb_ram_dist.v (limited to 'fpga/usrp2/control_lib/wb_ram_dist.v') diff --git a/fpga/usrp2/control_lib/wb_ram_dist.v b/fpga/usrp2/control_lib/wb_ram_dist.v new file mode 100644 index 000000000..cffc2f423 --- /dev/null +++ b/fpga/usrp2/control_lib/wb_ram_dist.v @@ -0,0 +1,33 @@ + + +module wb_ram_dist + #(parameter AWIDTH=8) + (input clk_i, + input stb_i, + input we_i, + input [AWIDTH-1:0] adr_i, + input [31:0] dat_i, + input [3:0] sel_i, + output [31:0] dat_o, + output ack_o); + + reg [31:0] distram [0:1<<(AWIDTH-1)]; + + always @(posedge clk_i) + begin + if(stb_i & we_i & sel_i[3]) + distram[adr_i][31:24] <= dat_i[31:24]; + if(stb_i & we_i & sel_i[2]) + distram[adr_i][24:16] <= dat_i[24:16]; + if(stb_i & we_i & sel_i[1]) + distram[adr_i][15:8] <= dat_i[15:8]; + if(stb_i & we_i & sel_i[0]) + distram[adr_i][7:0] <= dat_i[7:0]; + end // always @ (posedge clk_i) + + assign dat_o = distram[adr_i]; + assign ack_o = stb_i; + +endmodule // wb_ram_dist + + -- cgit v1.2.3