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author | Josh Blum <josh@joshknows.com> | 2010-11-23 15:35:48 -0800 |
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committer | Josh Blum <josh@joshknows.com> | 2010-11-23 15:35:48 -0800 |
commit | f56c1247cbe7b7e90acee2711b5dda3356b9486a (patch) | |
tree | 81dadc83537c2c50550cd94e224571e472176c6f /fpga/usrp2/gpmc/edge_sync.v | |
parent | 9f94ef843ceca63bcb83b2d473cbba709c9110b6 (diff) | |
parent | eb26e8adb4a5718ee3db3bb7f32c0cd31d060af9 (diff) | |
download | uhd-f56c1247cbe7b7e90acee2711b5dda3356b9486a.tar.gz uhd-f56c1247cbe7b7e90acee2711b5dda3356b9486a.tar.bz2 uhd-f56c1247cbe7b7e90acee2711b5dda3356b9486a.zip |
Merge branch 'next' of ettus.sourcerepo.com:ettus/uhdpriv into next
Diffstat (limited to 'fpga/usrp2/gpmc/edge_sync.v')
-rw-r--r-- | fpga/usrp2/gpmc/edge_sync.v | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fpga/usrp2/gpmc/edge_sync.v b/fpga/usrp2/gpmc/edge_sync.v new file mode 100644 index 000000000..5d9417c08 --- /dev/null +++ b/fpga/usrp2/gpmc/edge_sync.v @@ -0,0 +1,22 @@ + + +module edge_sync + #(parameter POSEDGE = 1) + (input clk, + input rst, + input sig, + output trig); + + reg [1:0] delay; + + always @(posedge clk) + if(rst) + delay <= 2'b00; + else + delay <= {delay[0],sig}; + + assign trig = POSEDGE ? (delay==2'b01) : (delay==2'b10); + +endmodule // edge_sync + + |