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Diffstat (limited to 'fpga/usrp2/control_lib/wb_bus_writer.v')
-rw-r--r-- | fpga/usrp2/control_lib/wb_bus_writer.v | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/fpga/usrp2/control_lib/wb_bus_writer.v b/fpga/usrp2/control_lib/wb_bus_writer.v deleted file mode 100644 index 08e641d37..000000000 --- a/fpga/usrp2/control_lib/wb_bus_writer.v +++ /dev/null @@ -1,74 +0,0 @@ -// -// Copyright 2011 Ettus Research LLC -// -// This program is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// This program is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with this program. If not, see <http://www.gnu.org/licenses/>. -// - - -// wb_bus_writer -// -// WB Bus Master device to send a sequence of single-word transactions -// based on a list in a RAM or ROM (FASM interface) -// ROM data format is {WB_ADDR[15:0],WB_DATA[31:0]} -// continues until it gets an all-1s entry - -module wb_bus_writer (input start, - output done, - output reg [15:0] rom_addr, - input [47:0] rom_data, - // WB Master Interface, don't need wb_dat_i - input wb_clk_i, - input wb_rst_i, - output [31:0] wb_dat_o, - input wb_ack_i, - output [15:0] wb_adr_o, - output wb_cyc_o, - output [3:0] wb_sel_o, - output wb_stb_o, - output wb_we_o - ); - -`define IDLE 0 -`define READ 1 - - reg [3:0] state; - - assign done = (state != `IDLE) && (&rom_data); // Done when we see all 1s - - always @(posedge wb_clk_i) - if(wb_rst_i) - begin - rom_addr <= #1 0; - state <= #1 0; - end - else if(start) - begin - rom_addr <= #1 0; - state <= #1 `READ; - end - else if((state == `READ) && wb_ack_i) - if(done) - state <= #1 `IDLE; - else - rom_addr <= #1 rom_addr + 1; - - assign wb_dat_o = rom_data[31:0]; - assign wb_adr_o = rom_data[47:32]; - assign wb_sel_o = 4'b1111; // All writes are the full 32 bits - - assign wb_cyc_o = !done & (state != `IDLE); - assign wb_stb_o = !done & (state != `IDLE); - assign wb_we_o = !done & (state != `IDLE); - -endmodule // wb_bus_writer |