summaryrefslogtreecommitdiff
path: root/usrp/fpga/toplevel/mrfm/mrfm_compensator.v
diff options
context:
space:
mode:
Diffstat (limited to 'usrp/fpga/toplevel/mrfm/mrfm_compensator.v')
-rw-r--r--usrp/fpga/toplevel/mrfm/mrfm_compensator.v80
1 files changed, 0 insertions, 80 deletions
diff --git a/usrp/fpga/toplevel/mrfm/mrfm_compensator.v b/usrp/fpga/toplevel/mrfm/mrfm_compensator.v
deleted file mode 100644
index f44b73b2f..000000000
--- a/usrp/fpga/toplevel/mrfm/mrfm_compensator.v
+++ /dev/null
@@ -1,80 +0,0 @@
-
-
-module mrfm_compensator (input clock, input reset, input strobe_in,
- input serial_strobe, input [6:0] serial_addr, input [31:0] serial_data,
- input [15:0] i_in, input [15:0] q_in, output reg [15:0] i_out, output reg [15:0] q_out);
-
- wire [15:0] a11,a12,a21,a22;
- reg [15:0] i_in_reg, q_in_reg;
- wire [30:0] product;
- reg [3:0] phase;
- wire [15:0] data,coeff;
- wire [7:0] shift;
- wire [33:0] accum;
- wire [15:0] scaled_accum;
- wire enable_acc;
-
- setting_reg #(`FR_MRFM_COMP_A11) sr_a11(.clock(clock),.reset(reset),
- .strobe(serial_strobe),.addr(serial_addr),.in(serial_data),
- .out(a11),.changed());
- setting_reg #(`FR_MRFM_COMP_A12) sr_a12(.clock(clock),.reset(reset),
- .strobe(serial_strobe),.addr(serial_addr),.in(serial_data),
- .out(a12),.changed());
- setting_reg #(`FR_MRFM_COMP_A21) sr_a21(.clock(clock),.reset(reset),
- .strobe(serial_strobe),.addr(serial_addr),.in(serial_data),
- .out(a21),.changed());
- setting_reg #(`FR_MRFM_COMP_A22) sr_a22(.clock(clock),.reset(reset),
- .strobe(serial_strobe),.addr(serial_addr),.in(serial_data),
- .out(a22),.changed());
- setting_reg #(`FR_MRFM_COMP_SHIFT) sr_cshift(.clock(clock),.reset(reset),
- .strobe(serial_strobe),.addr(serial_addr),.in(serial_data),
- .out(shift),.changed());
-
- mult mult (.clock(clock),.x(data),.y(coeff),.product(product),.enable_in(1'b1),.enable_out() );
- acc acc (.clock(clock),.reset(reset),.clear(clear_acc),.enable_in(enable_acc),.enable_out(),
- .addend(product),.sum(accum) );
- shifter shifter (.in(accum),.out(scaled_accum),.shift(shift));
-
- always @(posedge clock)
- if(reset)
- begin
- i_in_reg <= #1 16'd0;
- q_in_reg <= #1 16'd0;
- end
- else if(strobe_in)
- begin
- i_in_reg <= #1 i_in;
- q_in_reg <= #1 q_in;
- end
-
- always @(posedge clock)
- if(reset)
- phase <= #1 4'd0;
- else if(strobe_in)
- phase <= #1 4'd1;
- else if(strobe_in != 4'd8)
- phase <= #1 phase + 4'd1;
-
- assign data = ((phase == 4'd1)||(phase === 4'd4)) ? i_in_reg :
- ((phase == 4'd2)||(phase == 4'd5)) ? q_in_reg : 16'd0;
-
- assign coeff = (phase == 4'd1) ? a11 : (phase == 4'd2) ? a12 :
- (phase == 4'd4) ? a21 : (phase == 4'd5) ? a22 : 16'd0;
-
- assign clear_acc = (phase == 4'd0) || (phase == 4'd1) || (phase == 4'd4) || (phase==4'd8);
- assign enable_acc = ~clear_acc;
-
- always @(posedge clock)
- if(reset)
- i_out <= #1 16'd0;
- else if(phase == 4'd4)
- i_out <= #1 scaled_accum;
-
- always @(posedge clock)
- if(reset)
- q_out <= #1 16'd0;
- else if(phase == 4'd7)
- q_out <= #1 scaled_accum;
-
-
-endmodule // mrfm_compensator