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| author | David Shah <davey1576@gmail.com> | 2018-06-10 17:20:29 +0200 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-06-10 17:20:29 +0200 |
| commit | d3f1112580b1920cae8684d95e0c5eb65c785efe (patch) | |
| tree | 2dafe3ec1ee4ac104a91053810cedab6369252f4 /ice40/icebreaker.v | |
| parent | 458a13456a2ebea77da496a6a9ba9ed1aba7d5b2 (diff) | |
| download | nextpnr-d3f1112580b1920cae8684d95e0c5eb65c785efe.tar.gz nextpnr-d3f1112580b1920cae8684d95e0c5eb65c785efe.tar.bz2 nextpnr-d3f1112580b1920cae8684d95e0c5eb65c785efe.zip | |
Improving 5k support
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ice40/icebreaker.v')
| -rw-r--r-- | ice40/icebreaker.v | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/ice40/icebreaker.v b/ice40/icebreaker.v index fde2c576..f7b788a1 100644 --- a/ice40/icebreaker.v +++ b/ice40/icebreaker.v @@ -9,7 +9,7 @@ module icebreaker ( output led4_pin, output led5_pin ); - wire clk, led1, led2, led3, led4, led5, btn1, btn2, btn3; + wire clk, clk_pre, led1, led2, led3, led4, led5, btn1, btn2, btn3; (* BEL="18_31_io1" *) //27 SB_IO #( @@ -115,7 +115,7 @@ module icebreaker ( .OUTPUT_ENABLE(), .D_OUT_0(), .D_OUT_1(), - .D_IN_0(clk), + .D_IN_0(clk_pre), .D_IN_1() ); @@ -172,7 +172,9 @@ module icebreaker ( .D_IN_0(btn3), .D_IN_1() ); - /*localparam BITS = 5; + + SB_GB clk_gb(.USER_SIGNAL_TO_GLOBAL_BUFFER(clk_pre), .GLOBAL_BUFFER_OUTPUT(clk)); + localparam BITS = 5; localparam LOG2DELAY = 22; reg [BITS+LOG2DELAY-1:0] counter = 0; @@ -181,7 +183,7 @@ module icebreaker ( always @(posedge clk) begin counter <= counter + 1; outcnt <= counter >> LOG2DELAY; - end*/ - - assign {led1, led2, led3, led4, led5} = {!btn1, btn2, btn3, btn2, btn1}; + end + assign {led1, led2, led3, led4, led5} = outcnt ^ (outcnt >> 1); + //assign {led1, led2, led3, led4, led5} = {!btn1, btn2, btn3, btn2, btn1}; endmodule |