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author | Keith Rothman <537074+litghost@users.noreply.github.com> | 2021-02-25 09:11:32 -0800 |
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committer | Keith Rothman <537074+litghost@users.noreply.github.com> | 2021-02-26 11:01:22 -0800 |
commit | 9cbfd0b967f5804472afbb91d8df92e69dffe659 (patch) | |
tree | 80f1052bb588b0e3ff133ab99658cd7a0b06936e /fpga_interchange/examples/counter/counter.v | |
parent | c65ba121e00a17c344f154e0335d1c2358a1393d (diff) | |
download | nextpnr-9cbfd0b967f5804472afbb91d8df92e69dffe659.tar.gz nextpnr-9cbfd0b967f5804472afbb91d8df92e69dffe659.tar.bz2 nextpnr-9cbfd0b967f5804472afbb91d8df92e69dffe659.zip |
Add counter test.
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
Diffstat (limited to 'fpga_interchange/examples/counter/counter.v')
-rw-r--r-- | fpga_interchange/examples/counter/counter.v | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fpga_interchange/examples/counter/counter.v b/fpga_interchange/examples/counter/counter.v new file mode 100644 index 00000000..00f52a20 --- /dev/null +++ b/fpga_interchange/examples/counter/counter.v @@ -0,0 +1,15 @@ +module top(input clk, input rst, output [7:4] io_led); + +reg [31:0] counter = 32'b0; + +assign io_led = counter >> 22; + +always @(posedge clk) +begin + if(rst) + counter <= 32'b0; + else + counter <= counter + 1; +end + +endmodule |