Added everything from the other system

cores/system/test/rtl/toplevel.v

@@ -1,6 +1,8 @@
 `timescale 1ns/1ps
 
-module toplevel(
+module toplevel #(
+    parameter sim = 0
+)(
     input wire aclk,
     input wire aresetn,
 
@@ -11,6 +13,7 @@ module toplevel(
     output wire[7:0] LED
 
 );
+    `include "conv.vh"
 
     // Clocking
     wire clk_100;
@@ -25,56 +28,75 @@ module toplevel(
         .clk_out(clk_15)
     );
 
-    wire wb_rst;
-    assign wb_rst = ~aresetn;
 
-    wire [31:0] wb_adr;
-    wire [31:0] wb_dat_w;
-    wire [31:0] wb_dat_r;
-    wire [3:0] wb_sel;
-    wire wb_we;
-    wire wb_cyc;
-    wire wb_stb;
-    wire wb_ack;
-    wire wb_cmd_reset;
+    // Reset conditioning for button input:
+    // - asynchronous assert when button is pressed (aresetn=0)
+    // - synchronous, debounced deassert in clk_15 domain
+    localparam [17:0] RESET_RELEASE_CYCLES = sim ? 18'd16 : 18'd150000; // ~10 ms @ 15 MHz on hardware
+    reg [17:0] rst_cnt = 18'd0;
+    reg        sys_reset_r = 1'b1;
+    always @(posedge clk_15 or negedge aresetn) begin
+        if (!aresetn) begin
+            rst_cnt <= 18'd0;
+            sys_reset_r <= 1'b1;
+        end else if (sys_reset_r) begin
+            if (rst_cnt == RESET_RELEASE_CYCLES - 1'b1)
+                sys_reset_r <= 1'b0;
+            else
+                rst_cnt <= rst_cnt + 1'b1;
+        end
+    end
+    wire sys_reset = sys_reset_r;
+    wire sys_resetn = !sys_reset_r;
 
-    wire [31:0] gpio_out;
-    wire gpio_rst;
-    assign gpio_rst = wb_rst;
+    wire [31:0] GPIO_A;
+    wire [31:0] GPIO_B;
+    wire [31:0] GPIO_C;
+    wire [31:0] GPIO_D;
 
-    jtag_wb_bridge u_jtag_wb_bridge (
+    wire test;
+
+    mcu #(
+        .memfile("../sw/sweep/sweep.hex"),
+        .sim(sim),
+        .jtag(1)
+    ) mcu (
         .i_clk(clk_15),
-        .i_rst(wb_rst),
-        .o_wb_adr(wb_adr),
-        .o_wb_dat(wb_dat_w),
-        .o_wb_sel(wb_sel),
-        .o_wb_we(wb_we),
-        .o_wb_cyc(wb_cyc),
-        .o_wb_stb(wb_stb),
-        .i_wb_rdt(wb_dat_r),
-        .i_wb_ack(wb_ack),
-        .o_cmd_reset(wb_cmd_reset)
+        .i_rst(sys_reset),
+        .i_GPI_A(GPIO_A),
+        .i_GPI_B(GPIO_B),
+        .i_GPI_C(GPIO_C),
+        .i_GPI_D(GPIO_D),
+        .o_GPO_A(GPIO_A),
+        .o_GPO_B(GPIO_B),
+        .o_GPO_C(GPIO_C),
+        .o_GPO_D(GPIO_D)
     );
 
-    wb_gpio #(
-        .address(32'h00000000)
-    ) u_wb_gpio (
-        .i_wb_clk(clk_15),
-        .i_wb_rst(gpio_rst),
-        .i_wb_adr(wb_adr),
-        .i_wb_dat(wb_dat_w),
-        .i_wb_sel(wb_sel),
-        .i_wb_we(wb_we),
-        .i_wb_stb(wb_cyc & wb_stb),
-        .i_gpio(gpio_out),
-        .o_wb_rdt(wb_dat_r),
-        .o_wb_ack(wb_ack),
-        .o_gpio(gpio_out)
+
+    wire [15:0] sin_q15;
+    wire clk_en;
+    nco_q15 #(
+        .CLK_HZ(15_000_000),
+        .FS_HZ(80_000)
+    ) nco (
+        .clk    (clk_15),
+        .rst_n  (sys_resetn),
+        .freq_hz(GPIO_A),
+        .sin_q15(sin_q15),
+        .cos_q15(),
+        .clk_en (clk_en)
     );
 
-    assign led_green = aresetn;
-    assign led_red = wb_cmd_reset;
-    assign LED = gpio_out[7:0];
-    assign r2r = gpio_out[13:8];
+    reg [5:0] dac_code;
+    always @(posedge clk_15) begin
+        dac_code <= q15_to_uq16(sin_q15) >> 10;
+    end
+    assign r2r = dac_code;
+
+    assign LED = GPIO_B[7:0];
+    assign led_green = GPIO_C[0];
+    assign led_red = GPIO_C[1];
+
 
 endmodule