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Add always_ff
in saw2sin
to fix glitches
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parent
6d670dc903
commit
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@ -46,7 +46,8 @@ always_comb triangle = saw[15] ? {~saw[14:0], 1'b1} : {saw[14:0], 1'b0}; // Tria
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logic [15:0] sine;
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logic [15:0] sine;
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saw2sin m_saw2sin // Instantiate saw2sin module
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saw2sin m_saw2sin // Instantiate saw2sin module
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( .i_saw(saw)
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( .i_clk(i_clk48)
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, .i_saw(saw)
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, .o_sin(sine)
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, .o_sin(sine)
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);
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);
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@ -1,7 +1,8 @@
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`default_nettype none
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`default_nettype none
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module saw2sin
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module saw2sin
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( input var [15:0] i_saw
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( input var i_clk
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, input var [15:0] i_saw
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, output var [15:0] o_sin
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, output var [15:0] o_sin
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);
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);
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@ -23,7 +24,7 @@ cordic cordic
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);
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);
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logic [16:0] sin;
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logic [16:0] sin;
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always_comb sin = reverse
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always_ff @(posedge i_clk) sin <= reverse
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? (invert ? ~{1'b1, qsin[15:0]} // Reverse, Invert
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? (invert ? ~{1'b1, qsin[15:0]} // Reverse, Invert
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: {1'b1, qsin[15:0]} + 17'd1) // Reverse, Normal
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: {1'b1, qsin[15:0]} + 17'd1) // Reverse, Normal
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: (invert ? ~{1'b1, qsin[15:0]} + 17'd2 // Normal, Invert
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: (invert ? ~{1'b1, qsin[15:0]} + 17'd2 // Normal, Invert
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