Add top-level and QSPI controller modules

1 files changed, 58 insertions, 0 deletions

diff --git a/rtl/tt_top.sv b/rtl/tt_top.sv
new file mode 100644
index 0000000..be5f40d
--- /dev/null
+++ b/rtl/tt_top.sv
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2026 UBC ASIC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// Core wrapper + QSPI PMOD controller
+
+`default_nettype none
+
+module tt_top (
+    // Dedicated inputs
+    input  wire [7:0] ui_in,
+
+    // Dedicated outputs
+    output wire [7:0] uo_out,
+
+    // Bi-directional I/O
+    input  wire [7:0] uio_in,   // IOs: Input path
+    output wire [7:0] uio_out,  // IOs: Output path
+    output wire [7:0] uio_oe,   // IOs: Enable path (active high: 0=input, 1=output)
+
+    // Enable design
+    input  wire       ena,      // always 1 when the design is powered, so you can ignore it
+
+    // Clock
+    input  wire       clk,      // clock
+
+    // Reset
+    input  wire       rst_n     // reset_n - low to reset
+);
+
+    // All output pins must be assigned. If not used, assign to 0.
+    assign uo_out  = ui_in + uio_in;  // Example: ou_out is the sum of ui_in and uio_in
+    assign uio_out = 0;
+    assign uio_oe  = 0;
+
+    // List all unused inputs to prevent warnings
+    wire _unused = &{ena, clk, rst_n, 1'b0};
+
+
+    u_rv32e_core_wrapper rv32e_core_wrapper(
+
+    );
+
+
+    u_qspi_controller qspi_controller(
+        // Clock
+        .clk(),
+        
+        // Reset
+        .rst_n(),
+
+        // Bi-directional I/O
+        .uio_in(),   // IOs: Input path
+        .uio_out(),  // IOs: Output path
+        .uio_oe(),   // IOs: Enable path (active high: 0=input, 1=output)
+    );
+endmodule