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#!/usr/bin/env python3
from fuzzconfig import *
import numpy as np
import os
device_class = os.getenv("ICEDEVICE")
working_dir = "work_%s_gbio2" % (device_class, )
os.system("rm -rf " + working_dir)
os.mkdir(working_dir)
for p in gpins:
if p in pins: pins.remove(p)
# We can either tickle every global buffer or we don't have enough pins to do
# the full logic for each one.
w = min(min((len(pins) - 8) // 4, len(gpins)), 8)
for idx in range(num):
with open(working_dir + "/gbio2_%02d.v" % idx, "w") as f:
glbs = np.random.permutation(list(range(8)))
print("""
module top (
inout [%s:0] pin,
input latch_in,
input clk_en,
input clk_in,
input clk_out,
input oen,
input dout_0,
input dout_1,
output [%s:0] din_0,
output [%s:0] din_1,
output [%s:0] globals,
output reg q
);
""" % (
w-1, w-1, w-1, w-1
), file=f);
for k in range(w):
print("""
SB_GB_IO #(
.PIN_TYPE(6'b %s),
.PULLUP(1'b %s),
.NEG_TRIGGER(1'b %s),
.IO_STANDARD("SB_LVCMOS")
) \pin[%d]_gb_io (
.PACKAGE_PIN(pin[%d]),
.LATCH_INPUT_VALUE(latch_in),
.CLOCK_ENABLE(clk_en),
.INPUT_CLK(clk_in),
.OUTPUT_CLK(clk_out),
.OUTPUT_ENABLE(oen),
.D_OUT_0(dout_0),
.D_OUT_1(dout_1),
.D_IN_0(din_0[%d]),
.D_IN_1(din_1[%d]),
.GLOBAL_BUFFER_OUTPUT(globals[%d])
);
""" % (
np.random.choice(["1100_00", "1010_10", "1010_00", "0000_11", "1111_00"]),
np.random.choice(["0", "1"]),
np.random.choice(["0", "1"]),
k, k, k, k, k
), file=f)
print("""
always @(posedge globals[%d], posedge globals[%d])
if (globals[%d])
q <= 0;
else if (globals[%d])
q <= globals[%d];
endmodule
""" % (
glbs[0], glbs[1], glbs[1], glbs[2], glbs[3]
), file=f)
with open(working_dir + "/gbio2_%02d.pcf" % idx, "w") as f:
p = np.random.permutation(pins)
g = np.random.permutation(gpins)
for i in range(w):
print("set_io pin[%d] %s" % (i, g[i]), file=f)
print("set_io din_0[%d] %s" % (i, p[w+i]), file=f)
print("set_io din_1[%d] %s" % (i, p[2*w+i]), file=f)
print("set_io globals[%d] %s" % (i, p[3*w+i]), file=f)
for i, n in enumerate("latch_in clk_en clk_in clk_out oen dout_0 dout_1".split()):
print("set_io %s %s" % (n, p[4*w+i]), file=f)
print("set_io q %s" % (p[-1]), file=f)
output_makefile(working_dir, "gbio2")
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