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ecp5: Buttons working

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Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-07-10 14:02:01 +02:00
parent 1830c9372e
commit 9a2e8caf1c
3 changed files with 14 additions and 5 deletions
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15
ecp5/synth/blinky.v
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@ -1,7 +1,7 @@
module top(input clk_pin, output [3:0] led_pin, output gpio0_pin);
wire clk;
wire [3:0] led;
wire [7:0] led;
wire gpio0;
@ -17,16 +17,25 @@ module top(input clk_pin, output [3:0] led_pin, output gpio0_pin);
(* 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));
reg [25:0] ctr = 0;
reg [27:0] ctr = 0;
always@(posedge clk)
ctr <= ctr + 1'b1;
assign led = ctr[25:22];
assign led = ctr[27:20];
// Tie GPIO0, keep board from rebooting
TRELLIS_SLICE #(.MODE("LOGIC"), .LUT0_INITVAL(16'hFFFF)) vcc (.F0(gpio0));

2
ecp5/synth/ulx3s.v
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@ -3,7 +3,7 @@ module top(input a_pin, output led_pin, output led2_pin, output gpio0_pin);
wire a;
wire led, led2;
wire gpio0;
(* BEL="X90/Y65/PIOB" *) (* IO_TYPE="LVCMOS33" *)
(* 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));

2
ecp5/trellis_import.py
View File

@ -154,7 +154,7 @@ def add_bels(chip, x, y):
num_slices = 4
elif "PICL0" in tt or "PICR0" in tt:
num_pios = 4
elif "PIOT0" in tt or "PIOB0" in tt:
elif "PIOT0" in tt or ("PICB0" in tt and "SPICB" not in tt):
num_pios = 2
for i in range(num_slices):
add_slice(x, y, i)