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authorRuben Undheim <ruben.undheim@gmail.com>2016-11-03 23:18:00 +0100
committerRuben Undheim <ruben.undheim@gmail.com>2016-11-03 23:18:00 +0100
commitfefe0fc0430f4f173a25e674708aa0f4f0854b31 (patch)
treeadb13b830212c269d58031f900d652f29013d2d7 /techlibs/greenpak4
parent4f096fe65b77435daba019248273e547fa18d167 (diff)
Imported yosys 0.7
Diffstat (limited to 'techlibs/greenpak4')
-rw-r--r--techlibs/greenpak4/cells_sim.v39
1 files changed, 35 insertions, 4 deletions
diff --git a/techlibs/greenpak4/cells_sim.v b/techlibs/greenpak4/cells_sim.v
index 6ae9ae79..80746be0 100644
--- a/techlibs/greenpak4/cells_sim.v
+++ b/techlibs/greenpak4/cells_sim.v
@@ -131,9 +131,8 @@ endmodule
module GP_DELAY(input IN, output reg OUT);
parameter DELAY_STEPS = 1;
-
- //TODO: additional delay/glitch filter mode
-
+ parameter GLITCH_FILTER = 0;
+
initial OUT = 0;
generate
@@ -241,6 +240,16 @@ module GP_DFFSRI(input D, CLK, nSR, output reg nQ);
end
endmodule
+module GP_EDGEDET(input IN, output reg OUT);
+
+ parameter EDGE_DIRECTION = "RISING";
+ parameter DELAY_STEPS = 1;
+ parameter GLITCH_FILTER = 0;
+
+ //not implemented for simulation
+
+endmodule
+
module GP_IBUF(input IN, output OUT);
assign OUT = IN;
endmodule
@@ -296,6 +305,27 @@ module GP_PGA(input wire VIN_P, input wire VIN_N, input wire VIN_SEL, output reg
endmodule
+module GP_PGEN(input wire nRST, input wire CLK, output reg OUT);
+ initial OUT = 0;
+ parameter PATTERN_DATA = 16'h0;
+ parameter PATTERN_LEN = 5'd16;
+
+ reg[3:0] count = 0;
+ always @(posedge CLK) begin
+ if(!nRST)
+ OUT <= PATTERN_DATA[0];
+
+ else begin
+ count <= count + 1;
+ OUT <= PATTERN_DATA[count];
+
+ if( (count + 1) == PATTERN_LEN)
+ count <= 0;
+ end
+ end
+
+endmodule
+
module GP_POR(output reg RST_DONE);
parameter POR_TIME = 500;
@@ -409,7 +439,8 @@ endmodule
//keep constraint needed to prevent optimization since we have no outputs
(* keep *)
module GP_SYSRESET(input RST);
- parameter RESET_MODE = "RISING";
+ parameter RESET_MODE = "EDGE";
+ parameter EDGE_SPEED = 4;
//cannot simulate whole system reset