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Optimise triangle wave gen and add comments

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Aadi Desai 2023-05-18 12:42:09 +01:00
parent a17429c105
commit 6381cb53a8
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1 changed files with 2 additions and 2 deletions
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rtl/genSaw.sv
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@ -39,10 +39,10 @@ always_ff @(posedge clk_48k) // Generate new saw sample on rising edge of 48kHz
else if (!i_pause) saw <= saw + saw_step; // Add saw_step if not paused (48kHz) else if (!i_pause) saw <= saw + saw_step; // Add saw_step if not paused (48kHz)
logic [15:0] square; logic [15:0] square;
always_comb square = {16{saw[15]}}; always_comb square = {16{saw[15]}}; // Square wave is MSB of saw
logic [15:0] triangle; logic [15:0] triangle;
always_comb triangle = saw[15] ? {16'hFFFF - {saw[14:0], 1'b1}} : {saw[14:0], 1'b0}; // TODO: Optimise? always_comb triangle = saw[15] ? {~saw[14:0], 1'b1} : {saw[14:0], 1'b0}; // Triangle wave calc
logic [15:0] sine; logic [15:0] sine;
always_comb sine = saw; // TODO: Insert sine calcuation here? always_comb sine = saw; // TODO: Insert sine calcuation here?