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29 lines
669 B
Plaintext
29 lines
669 B
Plaintext
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#!/usr/bin/perl
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#
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# mkboot - generate a bitstream (in .bit format) that boots an M1
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# with the "regular" bitstream, using UrJTAG
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#
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# Hacked 2001 by Werner Almesberger
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#
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# magic, copied from xilinx_bitstream.c:xlx_bitstream_load_bit
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print pack("C*",
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0x00, 0x09, 0x0f, 0xf0, 0x0f, 0xf0, 0x0f, 0xf0,
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0x0f, 0xf0, 0x00, 0x00, 0x01);
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@seq = (
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# 0xffff, # DUMMY
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0xaa99, # Sync(1)
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0x5566, # Sync(2)
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0x3261, # write GENERAL1
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0x0000, # start address 15:0
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0x3281, # write GENERAL2
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0x0037, # start address 23:16
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0x30a1, # write CMD
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0x000e); # IPROG
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# 0x2000); # NOP
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print pack("aN", "e", 2*@seq);
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print pack("n*", @seq);
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