spec/bram_init.py

# Copyright 2020 Project U-Ray Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import sys
import numpy as np

bram_init = [] # ypos -> init; initp

for y in range(0, 24):
	bram_init.append((
		np.random.randint(0, 2, size=16384),
		np.random.randint(0, 2, size=2048),
	))

with open(sys.argv[1] + "/braminit/bram.v", "w") as f:
	print("module top;", file=f)
	for y in range(0, 24):
		print("(* KEEP, DONT_TOUCH, LOC=\"RAMB18_X1Y%d\" *)" % y, file=f)
		print("RAMB18E2 #(", file=f)
		for i in range(0, 64):
			print("    .INIT_%02X(256'b%s)," % (i, "".join([str(x) for x in reversed(bram_init[y][0][ i*256 : (i+1)*256 ])])), file=f)
		for i in range(0, 8):
			print("    .INITP_%02X(256'b%s)," % (i, "".join([str(x) for x in reversed(bram_init[y][1][ i*256 : (i+1)*256 ])])), file=f)
		print("    .DOA_REG(1'b0)", file=f) # just here for simpler commas
		print(") bram_%d ();" % y, file=f)
	print("endmodule", file=f)

with open(sys.argv[1] + "/braminit/bram.txt", "w") as f:
	for y in range(0, 24):
		site_y = y % 2
		tile_y = y // 2
		startbit = tile_y * 240
		if tile_y >= 6:
			startbit += 96
		for frame in range(0, 256):
			print("%d %d %d %s %s" %
				(
					frame,
					startbit,
					site_y,
					"".join(str(x) for x in bram_init[y][0][ frame*64 : (frame+1)*64 ]),
					"".join(str(x) for x in bram_init[y][1][ frame*8 : (frame+1)*8 ]),
				), file=f)
with open(sys.argv[1] + "/braminit/build.tcl", "w") as f:
	print("add_files %s" % (sys.argv[1] + "/braminit/bram.v"), file=f)
	print("synth_design -top top -part xczu7ev-ffvc1156-2-e", file=f)
	print("# set_property CLOCK_DEDICATED_ROUTE FALSE [get_nets]", file=f)
	print("opt_design", file=f)
	print("place_design", file=f)
	print("route_design", file=f)
	print("set_property SEVERITY {Warning} [get_drc_checks]", file=f)
	print("set_property BITSTREAM.GENERAL.PERFRAMECRC YES [current_design]", file=f)
	print("write_checkpoint -force bram.dcp", file=f)
	print("write_edif -force bram.edf", file=f)
	print("write_bitstream -force bram.bit", file=f)