X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/fpga-games/blobdiff_plain/32e4dd19fc7a119e6d74fbfd246f7ab9bfd8e841..4b3ff7d86485dea579af0d8fd983a36a1e9295ea:/galaxian/src/mc_clock.v?ds=sidebyside diff --git a/galaxian/src/mc_clock.v b/galaxian/src/mc_clock.v index 5ccfbd6..36925f3 100644 --- a/galaxian/src/mc_clock.v +++ b/galaxian/src/mc_clock.v @@ -20,7 +20,8 @@ module mc_clock( I_CLK_36M, O_CLK_18M, O_CLK_12M, -O_CLK_06M +O_CLK_06M, +O_CLK_06Mn ); @@ -28,6 +29,7 @@ input I_CLK_36M; output O_CLK_18M; output O_CLK_12M; output O_CLK_06M; +output O_CLK_06Mn; // 2/3 clock divider(duty 33%) //I_CLK 1010101010101010101 @@ -68,10 +70,15 @@ assign O_CLK_18M = CLK_18M; // 1/3 clock divider (duty 50%) reg CLK_6M; +reg CLK_6Mn; + always @(posedge O_CLK_12M) begin CLK_6M <= ~CLK_6M; + CLK_6Mn <= CLK_6M; end + assign O_CLK_06M = CLK_6M; +assign O_CLK_06Mn = CLK_6Mn; endmodule