diff --git a/design/sd/rom_sd.sv b/design/sd/rom_sd.sv index cfbb559..e9d5a62 100644 --- a/design/sd/rom_sd.sv +++ b/design/sd/rom_sd.sv @@ -1,11 +1,11 @@ // A dummy sdcard module for testing the audio port -module sd( +module rom_sd( input logic clk, input logic reset, output logic ready, - audio_buffer_interface.driver buffer + buffer_interface.driver buffer ); // First we write 2048B into the memory buffer, then signal to play it and @@ -14,45 +14,16 @@ logic initializing; logic [16:0] rom_addr; logic [7:0] rom_data; logic rom_enable; -// Keep track of pipeline delay so we don't write garbage into the buffer -logic delay; +logic buffer_half; -// Keep track of if we are caught up to the buffer or not -logic waiting; -//TODO: This probably could be an assign, not sure - -assign ready = '1; always_ff @(posedge clk) begin if (reset) begin - delay <= 1; rom_addr <= 0; initializing <= 1; - audio_buffer.addra <= 0; - audio_buffer.ena <= 0; + buffer.addra <= 0; + buffer.ena <= 0; end - else if (initializing) begin - rom_enable <= 1; - case (delay) - 1: delay <= 0; - 0: begin - rom_addr <= 1; - delay <= 0; - initializing <= 0; - end - endcase - end - else begin - if (!waiting) begin - audio_buffer.ena <= 1; - audio_buffer.dina <= rom_data; - audio_buffer.addra <= audio_buffer.addra + 1; - end - - end - - - end