diff options
Diffstat (limited to 'ice40/regressions/issue0071/top-nopll.v')
| -rw-r--r-- | ice40/regressions/issue0071/top-nopll.v | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/ice40/regressions/issue0071/top-nopll.v b/ice40/regressions/issue0071/top-nopll.v new file mode 100644 index 0000000..1e8c870 --- /dev/null +++ b/ice40/regressions/issue0071/top-nopll.v @@ -0,0 +1,35 @@ +/* Machine-generated using Migen */
+module top(
+ input clk16,
+ input usb_d_p,
+ input usb_d_n,
+ output usb_pullup,
+ output user_led
+);
+
+wire sys_clk;
+reg sys_rst = 1'd0;
+wire clk16_1;
+reg [23:0] count = 24'd0;
+
+
+// Adding a dummy event (using a dummy signal 'dummy_s') to get the simulator
+// to run the combinatorial process once at the beginning.
+// synthesis translate_off
+reg dummy_s;
+initial dummy_s <= 1'd0;
+// synthesis translate_on
+
+assign sys_clk = clk16_1;
+assign clk16_1 = clk16;
+assign usb_pullup = 1'd0;
+assign user_led = count[22];
+
+always @(posedge sys_clk) begin
+ count <= (count + 1'd1);
+ if (sys_rst) begin
+ count <= 24'd0;
+ end
+end
+
+endmodule
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