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ecp5: Tidying up examples

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-07-18 16:31:55 +02:00
parent c80934f953
commit 50bf32665d
10 changed files with 40 additions and 265 deletions
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78
ecp5/synth/blinky.v
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@ -1,46 +1,46 @@
module top(input clk_pin, input btn_pin, output [7:0] led_pin, output gpio0_pin); module top(input clk_pin, input btn_pin, output [7:0] led_pin, output gpio0_pin);
wire clk; wire clk;
wire [7:0] led; wire [7:0] led;
wire btn; wire btn;
wire gpio0; wire gpio0;
(* LOC="G2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="G2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("INPUT")) clk_buf (.B(clk_pin), .O(clk)); TRELLIS_IO #(.DIR("INPUT")) clk_buf (.B(clk_pin), .O(clk));
(* LOC="R1" *) (* IO_TYPE="LVCMOS33" *) (* LOC="R1" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("INPUT")) btn_buf (.B(btn_pin), .O(btn)); TRELLIS_IO #(.DIR("INPUT")) btn_buf (.B(btn_pin), .O(btn));
(* LOC="B2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="B2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_0 (.B(led_pin[0]), .I(led[0])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_0 (.B(led_pin[0]), .I(led[0]));
(* LOC="C2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="C2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_1 (.B(led_pin[1]), .I(led[1])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_1 (.B(led_pin[1]), .I(led[1]));
(* LOC="C1" *) (* IO_TYPE="LVCMOS33" *) (* LOC="C1" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_2 (.B(led_pin[2]), .I(led[2])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_2 (.B(led_pin[2]), .I(led[2]));
(* LOC="D2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="D2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_3 (.B(led_pin[3]), .I(led[3])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_3 (.B(led_pin[3]), .I(led[3]));
(* LOC="D1" *) (* IO_TYPE="LVCMOS33" *) (* LOC="D1" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_4 (.B(led_pin[4]), .I(led[4])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_4 (.B(led_pin[4]), .I(led[4]));
(* LOC="E2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="E2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_5 (.B(led_pin[5]), .I(led[5])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_5 (.B(led_pin[5]), .I(led[5]));
(* LOC="E1" *) (* IO_TYPE="LVCMOS33" *) (* LOC="E1" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_6 (.B(led_pin[6]), .I(led[6])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_6 (.B(led_pin[6]), .I(led[6]));
(* LOC="H3" *) (* IO_TYPE="LVCMOS33" *) (* LOC="H3" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_7 (.B(led_pin[7]), .I(led[7])); TRELLIS_IO #(.DIR("OUTPUT")) led_buf_7 (.B(led_pin[7]), .I(led[7]));
(* LOC="L2" *) (* IO_TYPE="LVCMOS33" *) (* LOC="L2" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0)); TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0));
localparam ctr_width = 24; localparam ctr_width = 24;
localparam ctr_max = 2**ctr_width - 1; localparam ctr_max = 2**ctr_width - 1;
reg [ctr_width-1:0] ctr = 0; reg [ctr_width-1:0] ctr = 0;
reg [9:0] pwm_ctr = 0; reg [9:0] pwm_ctr = 0;
reg dir = 0; reg dir = 0;
always@(posedge clk) begin always@(posedge clk) begin
ctr <= btn ? ctr : (dir ? ctr - 1'b1 : ctr + 1'b1); ctr <= btn ? ctr : (dir ? ctr - 1'b1 : ctr + 1'b1);
if (ctr[ctr_width-1 : ctr_width-3] == 0 && dir == 1) if (ctr[ctr_width-1 : ctr_width-3] == 0 && dir == 1)
dir <= 1'b0; dir <= 1'b0;
else if (ctr[ctr_width-1 : ctr_width-3] == 7 && dir == 0) else if (ctr[ctr_width-1 : ctr_width-3] == 7 && dir == 0)
@ -54,19 +54,19 @@ module top(input clk_pin, input btn_pin, output [7:0] led_pin, output gpio0_pin)
genvar i; genvar i;
generate generate
for (i = 0; i < 8; i=i+1) begin for (i = 0; i < 8; i=i+1) begin
always @ (posedge clk) begin always @ (posedge clk) begin
if (ctr[ctr_width-1 : ctr_width-3] == i) if (ctr[ctr_width-1 : ctr_width-3] == i)
brightness[i] <= bright_max; brightness[i] <= bright_max;
else if (ctr[ctr_width-1 : ctr_width-3] == (i - 1)) else if (ctr[ctr_width-1 : ctr_width-3] == (i - 1))
brightness[i] <= ctr[ctr_width-4:ctr_width-13]; brightness[i] <= ctr[ctr_width-4:ctr_width-13];
else if (ctr[ctr_width-1 : ctr_width-3] == (i + 1)) else if (ctr[ctr_width-1 : ctr_width-3] == (i + 1))
brightness[i] <= bright_max - ctr[ctr_width-4:ctr_width-13]; brightness[i] <= bright_max - ctr[ctr_width-4:ctr_width-13];
else else
brightness[i] <= 0; brightness[i] <= 0;
led_reg[i] <= pwm_ctr < brightness[i]; led_reg[i] <= pwm_ctr < brightness[i];
end end
end end
endgenerate endgenerate
assign led = led_reg; assign led = led_reg;

9
ecp5/synth/blinky.ys
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@ -1,9 +1,2 @@
read_verilog blinky.v read_verilog blinky.v
read_verilog -lib cells.v synth_ecp5 -noccu2 -nomux -nodram -json blinky.json
synth -top top
abc -lut 4
techmap -map simple_map.v
splitnets
opt_clean
stat
write_json blinky.json

2
ecp5/synth/blinky_nopack.ys
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@ -1,2 +0,0 @@
read_verilog blinky.v
synth_ecp5 -noccu2 -nomux -nodram -json blinky.json

49
ecp5/synth/cells.v
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@ -1,49 +0,0 @@
(* blackbox *)
module TRELLIS_SLICE(
input A0, B0, C0, D0,
input A1, B1, C1, D1,
input M0, M1,
input FCI, FXA, FXB,
input CLK, LSR, CE,
input DI0, DI1,
input WD0, WD1,
input WAD0, WAD1, WAD2, WAD3,
input WRE, WCK,
output F0, Q0,
output F1, Q1,
output FCO, OFX0, OFX1,
output WDO0, WDO1, WDO2, WDO3,
output WADO0, WADO1, WADO2, WADO3
);
parameter MODE = "LOGIC";
parameter GSR = "ENABLED";
parameter SRMODE = "LSR_OVER_CE";
parameter CEMUX = "1";
parameter CLKMUX = "CLK";
parameter LSRMUX = "LSR";
parameter LUT0_INITVAL = 16'h0000;
parameter LUT1_INITVAL = 16'h0000;
parameter REG0_SD = "0";
parameter REG1_SD = "0";
parameter REG0_REGSET = "RESET";
parameter REG1_REGSET = "RESET";
parameter CCU2_INJECT1_0 = "NO";
parameter CCU2_INJECT1_1 = "NO";
endmodule
(* blackbox *) (* keep *)
module TRELLIS_IO(
inout B,
input I,
input T,
output O,
);
parameter DIR = "INPUT";
endmodule

52
ecp5/synth/counter.v
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@ -1,52 +0,0 @@
module top(input clk_pin, input btn_pin, output [7:0] led_pin, output gpio0_pin);
wire clk;
wire [7:0] led;
wire btn;
wire gpio0;
(* BEL="X0/Y35/PIOA" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("INPUT")) clk_buf (.B(clk_pin), .O(clk));
(* BEL="X4/Y71/PIOA" *) (* IO_TYPE="LVCMOS33" *) (* keep *)
TRELLIS_IO #(.DIR("INPUT")) btn_buf (.B(btn_pin), .O(btn));
(* BEL="X0/Y23/PIOC" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_0 (.B(led_pin[0]), .I(led[0]));
(* BEL="X0/Y23/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_1 (.B(led_pin[1]), .I(led[1]));
(* BEL="X0/Y26/PIOA" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_2 (.B(led_pin[2]), .I(led[2]));
(* BEL="X0/Y26/PIOC" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_3 (.B(led_pin[3]), .I(led[3]));
(* BEL="X0/Y26/PIOB" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_4 (.B(led_pin[4]), .I(led[4]));
(* BEL="X0/Y32/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_5 (.B(led_pin[5]), .I(led[5]));
(* BEL="X0/Y26/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_6 (.B(led_pin[6]), .I(led[6]));
(* BEL="X0/Y29/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf_7 (.B(led_pin[7]), .I(led[7]));
(* BEL="X0/Y62/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0));
localparam ctr_width = 30;
localparam ctr_max = 2**ctr_width - 1;
reg [ctr_width-1:0] ctr = 0;
reg [9:0] pwm_ctr = 0;
reg dir = 0;
always@(posedge clk) begin
ctr <= ctr + 1'b1;
end
assign led = ctr[ctr_width-1:ctr_width-8];
// Tie GPIO0, keep board from rebooting
assign gpio0 = 1'b1;
endmodule

68
ecp5/synth/simple_map.v
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@ -1,68 +0,0 @@
module \$_DFF_P_ (input D, C, output Q);
TRELLIS_SLICE #(
.MODE("LOGIC"),
.CLKMUX("CLK"),
.CEMUX("1"),
.REG0_SD("0"),
.REG0_REGSET("RESET"),
.SRMODE("LSR_OVER_CE"),
.GSR("DISABLED")
) _TECHMAP_REPLACE_ (
.CLK(C),
.M0(D),
.Q0(Q)
);
endmodule
module \$lut (A, Y);
parameter WIDTH = 0;
parameter LUT = 0;
input [WIDTH-1:0] A;
output Y;
generate
if (WIDTH == 1) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({8{LUT[1:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.F0(Y)
);
end
if (WIDTH == 2) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({4{LUT[3:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.F0(Y)
);
end
if (WIDTH == 3) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL({2{LUT[7:0]}})
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.C0(A[2]),
.F0(Y)
);
end
if (WIDTH == 4) begin
TRELLIS_SLICE #(
.MODE("LOGIC"),
.LUT0_INITVAL(LUT)
) _TECHMAP_REPLACE_ (
.A0(A[0]),
.B0(A[1]),
.C0(A[2]),
.D0(A[3]),
.F0(Y)
);
end
endgenerate
endmodule

18
ecp5/synth/ulx3s.v
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@ -1,18 +0,0 @@
module top(input a_pin, output led_pin, output led2_pin, output gpio0_pin);
wire a;
wire led, led2;
wire gpio0;
(* BEL="X4/Y71/PIOA" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("INPUT")) a_buf (.B(a_pin), .O(a));
(* BEL="X0/Y23/PIOC" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led_buf (.B(led_pin), .I(led));
(* BEL="X0/Y26/PIOA" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) led2_buf (.B(led2_pin), .I(led2));
(* BEL="X0/Y62/PIOD" *) (* IO_TYPE="LVCMOS33" *)
TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0));
assign led = a;
assign led2 = !a;
TRELLIS_SLICE #(.MODE("LOGIC"), .LUT0_INITVAL(16'hFFFF)) vcc (.F0(gpio0));
endmodule

9
ecp5/synth/ulx3s.ys
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@ -1,9 +0,0 @@
read_verilog ulx3s.v
read_verilog -lib cells.v
synth -top top
abc -lut 4
techmap -map simple_map.v
splitnets
opt_clean
stat
write_json ulx3s.json

11
ecp5/synth/wire.v
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@ -1,11 +0,0 @@
module top(input a_pin, output [3:0] led_pin);
wire a;
wire [3:0] led;
TRELLIS_IO #(.DIR("INPUT")) a_buf (.B(a_pin), .O(a));
TRELLIS_IO #(.DIR("OUTPUT")) led_buf [3:0] (.B(led_pin), .I(led));
//assign led[0] = !a;
always @(posedge a) led[0] <= !led[0];
endmodule

9
ecp5/synth/wire.ys
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@ -1,9 +0,0 @@
read_verilog wire.v
read_verilog -lib cells.v
synth -top top
abc -lut 4
techmap -map simple_map.v
splitnets
opt_clean
stat
write_json wire.json