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ecp5: Adding BRAM initialisation and config

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2018-10-09 14:19:04 +01:00
parent 31e22c8b96
commit 346cbbdbdc
5 changed files with 73 additions and 0 deletions
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22
techlibs/ecp5/brams_init.py Executable file
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#!/usr/bin/env python3
with open("techlibs/ecp5/bram_init_1_2_4.vh", "w") as f:
for i in range(0, 0x40):
init_snippets = []
for j in range(32):
init_snippets.append("INIT[%4d*8 +: 8]" % (32 * i + j))
init_snippets.append("3'b000" if (j % 2 == 1) else "1'b0")
init_snippets = list(reversed(init_snippets))
for k in range(8, 64, 8):
init_snippets[k] = "\n " + init_snippets[k]
print(".INIT_%02X({%s})," % (i, ", ".join(init_snippets)), file=f)
with open("techlibs/ecp5/bram_init_9_18_36.vh", "w") as f:
for i in range(0, 0x40):
init_snippets = []
for j in range(16):
init_snippets.append("INIT[%3d*18 +: 18]" % (16 * i + j))
init_snippets.append("2'b00")
init_snippets = list(reversed(init_snippets))
for k in range(8, 32, 8):
init_snippets[k] = "\n " + init_snippets[k]
print(".INIT_%02X({%s})," % (i, ", ".join(init_snippets)), file=f)