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author | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
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committer | Martin Braun <martin.braun@ettus.com> | 2014-10-07 11:25:20 +0200 |
commit | fd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch) | |
tree | 3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/models/cpld_model.v | |
parent | 3b66804e41891e358c790b453a7a59ec7462dba4 (diff) | |
download | uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.gz uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.bz2 uhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.zip |
Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/models/cpld_model.v')
-rw-r--r-- | fpga/usrp2/models/cpld_model.v | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/fpga/usrp2/models/cpld_model.v b/fpga/usrp2/models/cpld_model.v deleted file mode 100644 index 900577852..000000000 --- a/fpga/usrp2/models/cpld_model.v +++ /dev/null @@ -1,113 +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/>. -// - - -module cpld_model - (input aux_clk, input start, input mode, input done, - output dout, output reg sclk, output detached); - - reg [7:0] rom[0:65535]; - - reg [15:0] addr; - reg [7:0] data; - assign dout = data[7]; - - reg [2:0] state, bitcnt; - - localparam IDLE = 3'd0; - localparam READ = 3'd1; - localparam BIT1 = 3'd2; - localparam BIT2 = 3'd3; - localparam DONE = 3'd4; - localparam DETACHED = 3'd5; - localparam ERROR = 3'd7; - - integer i; - reg [1023:0] ROMFile; - - initial begin - for (i=0;i<65536;i=i+1) begin - rom[i] <= 32'h0; - end - if ( !$value$plusargs( "rom=%s", ROMFile ) ) - begin - $display( "Using default ROM file, 'flash.rom'" ); - ROMFile = "flash.rom"; - end - else - $display( "Using %s as ROM file.", ROMFile); - - #1 $readmemh( ROMFile,rom ); - end - - initial addr = 16'd0; - initial data = 8'd0; - initial state = IDLE; - initial bitcnt = 3'd0; - initial sclk = 1'b0; - - always @(posedge aux_clk) - case(state) - IDLE : - if(start) - if(~mode) - state <= READ; - else - state <= ERROR; - READ : - if(done) - state <= DONE; - else - begin - data <= rom[addr]; - addr <= addr + 1; - bitcnt <= 3'd0; - if(addr==16'hFFFF) - state <= ERROR; - else - state <= BIT1; - end // else: !if(start) - BIT1 : - begin - sclk <= 1'b1; - state <= BIT2; - end - BIT2 : - begin - sclk <= 1'b0; - data <= {data[6:0],1'b0}; - bitcnt <= bitcnt + 1; - if(bitcnt==7) - state <= READ; - else - state <=BIT1; - end - DONE : - begin - if(start) - state <= ERROR; - else - state <= DETACHED; - end - DETACHED : - if(start) - state <= ERROR; - endcase // case(state) - - assign detached = (state == DETACHED) || (state == IDLE); - -endmodule // cpld_model |