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Initialization support for all iCE40 bram modes

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This commit is contained in:
Clifford Wolf 2015-04-26 08:39:31 +02:00
parent b4d7a590e8
commit 752851954b
8 changed files with 65 additions and 28 deletions
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17
techlibs/ice40/brams_init.py Normal file
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#!/usr/bin/python
from __future__ import division
from __future__ import print_function
def write_init_vh(filename, initbits):
with open(filename, "w") as f:
for i in range(16):
print("localparam [255:0] INIT_%X = {" % i, file=f)
for k in range(32):
print(" %s%s" % (", ".join(["INIT[%4d]" % initbits[i*256 + 255 - k*8 - l] for l in range(8)]), "," if k != 31 else ""), file=f)
print("};", file=f);
write_init_vh("brams_init1.vh", [i//2 + 2048*(i%2) for i in range(4096)])
write_init_vh("brams_init2.vh", [i//4 + 1024*(i%4) for i in range(4096)])
write_init_vh("brams_init3.vh", [i//8 + 512*(i%8) for i in range(4096)])