diff options
Diffstat (limited to 'gr-sounder/src/fpga/lib/sounder_tx.v')
| -rw-r--r-- | gr-sounder/src/fpga/lib/sounder_tx.v | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/gr-sounder/src/fpga/lib/sounder_tx.v b/gr-sounder/src/fpga/lib/sounder_tx.v index d5300fecb9..46165dde5f 100644 --- a/gr-sounder/src/fpga/lib/sounder_tx.v +++ b/gr-sounder/src/fpga/lib/sounder_tx.v @@ -22,8 +22,8 @@ `include "../../../../usrp/firmware/include/fpga_regs_common.v" `include "../../../../usrp/firmware/include/fpga_regs_standard.v" -`define MAX_VALUE 16'h7FFF // 2s complement -`define MIN_VALUE 16'h8000 +`define MAX_VALUE 14'h1FFF // 2s complement +`define MIN_VALUE 14'h2001 module sounder_tx(clk_i,rst_i,ena_i,strobe_i,mask_i,tx_i_o,tx_q_o); input clk_i; @@ -31,15 +31,15 @@ module sounder_tx(clk_i,rst_i,ena_i,strobe_i,mask_i,tx_i_o,tx_q_o); input ena_i; input strobe_i; input [15:0] mask_i; - output [15:0] tx_i_o; - output [15:0] tx_q_o; + output [13:0] tx_i_o; + output [13:0] tx_q_o; wire pn; lfsr pn_code ( .clk_i(clk_i),.rst_i(rst_i),.ena_i(ena_i),.strobe_i(strobe_i),.mask_i(mask_i),.pn_o(pn) ); - assign tx_i_o = pn ? `MAX_VALUE : `MIN_VALUE; // Bipolar - assign tx_q_o = 16'b0; + assign tx_i_o = ena_i ? (pn ? `MAX_VALUE : `MIN_VALUE) : 14'b0; // Bipolar + assign tx_q_o = 14'b0; endmodule // sounder_tx |