imants/audio_effects_FPGA
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Main clk speed changed from 25MHz to 50MHz

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add LEDs (outputs data from effects controler)
add switches to control cliping treshold
This commit is contained in:
Imants Pulkstenis
2019-12-03 22:41:14 +02:00
parent c86c2a267b
commit 9701ead6d3
4 changed files with 87 additions and 78 deletions
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clipping.v
+4 -4
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@@ -20,8 +20,8 @@ localparam [2:0] IDLE = 'd0,
reg [2:0] r_state=IDLE, r_next=IDLE;
reg signed [data_width-1: 0] r_data = 'b0;
reg signed [data_width-1: 0] r_treshhold_p = 'b0;
reg signed [data_width-1: 0] r_treshhold_n = 'b0;
reg [data_width-1: 0] r_treshhold_p = 'b0;
reg [data_width-1: 0] r_treshhold_n = 'b0;
reg r_read_enable = 0;
reg r_data_valid = 0;
@@ -52,7 +52,7 @@ always @(posedge clk ) begin
r_next <= CLIP;
r_data <= i_data;
r_treshhold_p <= i_treshhold;
r_treshhold_n <= 0 - i_treshhold;
r_treshhold_n <= (~i_treshhold) + 1; // two compliment
r_read_enable <= 0;
r_data_valid <= 0;
end
@@ -63,7 +63,7 @@ always @(posedge clk ) begin
end
end
CLIP : begin
case (r_data < 0 )
case (r_data[data_width-1])
0 : begin // positive number
if (r_data > r_treshhold_p)
r_data <= r_treshhold_p;