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authorMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
committerMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
commitfd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch)
tree3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/control_lib/simple_uart_tx.v
parent3b66804e41891e358c790b453a7a59ec7462dba4 (diff)
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Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/control_lib/simple_uart_tx.v')
-rw-r--r--fpga/usrp2/control_lib/simple_uart_tx.v77
1 files changed, 0 insertions, 77 deletions
diff --git a/fpga/usrp2/control_lib/simple_uart_tx.v b/fpga/usrp2/control_lib/simple_uart_tx.v
deleted file mode 100644
index f38460bd4..000000000
--- a/fpga/usrp2/control_lib/simple_uart_tx.v
+++ /dev/null
@@ -1,77 +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 simple_uart_tx
- #(parameter DEPTH=0)
- (input clk, input rst,
- input [7:0] fifo_in, input fifo_write, output [7:0] fifo_level, output fifo_full,
- input [15:0] clkdiv, output baudclk, output reg tx);
-
- reg [15:0] baud_ctr;
- reg [3:0] bit_ctr;
-
- wire read, empty;
- wire [7:0] char_to_send;
-
- medfifo #(.WIDTH(8),.DEPTH(DEPTH)) fifo
- (.clk(clk),.rst(rst),
- .datain(fifo_in),.write(fifo_write),.full(fifo_full),
- .dataout(char_to_send),.read(read),.empty(empty),
- .clear(0),.space(fifo_level),.occupied() );
-
- always @(posedge clk)
- if(rst)
- baud_ctr <= 0;
- else if (baud_ctr >= clkdiv)
- baud_ctr <= 0;
- else
- baud_ctr <= baud_ctr + 1;
-
- always @(posedge clk)
- if(rst)
- bit_ctr <= 0;
- else if(baud_ctr == clkdiv)
- if(bit_ctr == 9)
- bit_ctr <= 0;
- else if(bit_ctr != 0)
- bit_ctr <= bit_ctr + 1;
- else if(~empty)
- bit_ctr <= 1;
-
- always @(posedge clk)
- if(rst)
- tx <= 1;
- else
- case(bit_ctr)
- 0 : tx <= 1;
- 1 : tx <= 0;
- 2 : tx <= char_to_send[0];
- 3 : tx <= char_to_send[1];
- 4 : tx <= char_to_send[2];
- 5 : tx <= char_to_send[3];
- 6 : tx <= char_to_send[4];
- 7 : tx <= char_to_send[5];
- 8 : tx <= char_to_send[6];
- 9 : tx <= char_to_send[7];
- default : tx <= 1;
- endcase // case(bit_ctr)
-
- assign read = (bit_ctr == 9) && (baud_ctr == clkdiv);
- assign baudclk = (baud_ctr == 1); // Only for debug purposes
-
-endmodule // simple_uart_tx