Major rewrite of picosoc spimemio core

1 files changed, 66 insertions, 0 deletions

diff --git a/picosoc/hx8kdemo_tb.v b/picosoc/hx8kdemo_tb.v
new file mode 100644
index 0000000..ffb292f
--- /dev/null
+++ b/picosoc/hx8kdemo_tb.v
@@ -0,0 +1,66 @@
+/*
+ *  PicoSoC - A simple example SoC using PicoRV32
+ *
+ *  Copyright (C) 2017  Clifford Wolf <clifford@clifford.at>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+`timescale 1 ns / 1 ps
+
+module testbench;
+	reg clk;
+	always #5 clk = (clk === 1'b0);
+
+	initial begin
+		$dumpfile("testbench.vcd");
+		$dumpvars(0, testbench);
+
+		repeat (100000) @(posedge clk);
+		$finish;
+	end
+
+	wire [7:0] leds;
+
+	wire flash_csb;
+	wire flash_clk;
+	wire flash_io0;
+	wire flash_io1;
+	wire flash_io2;
+	wire flash_io3;
+
+	always @(leds) begin
+		$display("%b", leds);
+	end
+
+	hx8kdemo uut (
+		.clk      (clk      ),
+		.leds     (leds     ),
+		.flash_csb(flash_csb),
+		.flash_clk(flash_clk),
+		.flash_io0(flash_io0),
+		.flash_io1(flash_io1),
+		.flash_io2(flash_io2),
+		.flash_io3(flash_io3)
+	);
+
+	spiflash spiflash (
+		.csb(flash_csb),
+		.clk(flash_clk),
+		.io0(flash_io0),
+		.io1(flash_io1),
+		.io2(flash_io2),
+		.io3(flash_io3)
+	);
+endmodule