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util_extract: Compensate 4 word latency

main
Adrian Costina 2017-08-30 18:02:09 +03:00
parent 54e96c49ae
commit f6288dc0a3
1 changed files with 9 additions and 2 deletions
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9
library/util_extract/util_extract.v
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@ -47,6 +47,7 @@ module util_extract #(
input data_valid, input data_valid,
output [DATA_WIDTH-1:0] data_out, output [DATA_WIDTH-1:0] data_out,
output reg valid_out,
output reg trigger_out output reg trigger_out
); );
@ -55,6 +56,9 @@ module util_extract #(
genvar n; genvar n;
reg trigger_d1; reg trigger_d1;
reg trigger_d2;
reg trigger_d3;
reg trigger_d4;
wire [15:0] trigger; // 16 maximum channels wire [15:0] trigger; // 16 maximum channels
@ -70,9 +74,12 @@ module util_extract #(
// compensate delay in the FIFO // compensate delay in the FIFO
always @(posedge clk) begin always @(posedge clk) begin
valid_out <= data_valid;
if (data_valid == 1'b1) begin if (data_valid == 1'b1) begin
trigger_d1 <= |trigger; trigger_d1 <= |trigger;
trigger_out <= trigger_d1; trigger_d2 <= trigger_d1;
trigger_d3 <= trigger_d2;
trigger_out <= trigger_d3;
end end
end end