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authorNick Foster <nick@nerdnetworks.org>2010-11-10 12:15:35 -0800
committerNick Foster <nick@nerdnetworks.org>2010-11-10 12:15:35 -0800
commitfb0cdbc553d288402ee7939dc72f4368eb9e8e1b (patch)
treee20003155af08428448a7834a82d259f3b68717d /firmware/fx2/utils/build_eeprom.py
parent8fe1e7b29aacce7f75ae36e81706bbde02749b97 (diff)
parent8c434f7d63aca25b55d6d13dffcc1d7037261d4f (diff)
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Merge branch 'master' of ettus.sourcerepo.com:ettus/uhdpriv into usrp2p-next
Conflicts: firmware/microblaze/lib/u2_init.c host/lib/usrp/usrp2/clock_ctrl.cpp host/lib/usrp/usrp2/fw_common.h host/lib/usrp/usrp2/mboard_impl.cpp host/lib/usrp/usrp2/usrp2_iface.cpp host/lib/usrp/usrp2/usrp2_iface.hpp
Diffstat (limited to 'firmware/fx2/utils/build_eeprom.py')
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1 files changed, 112 insertions, 0 deletions
diff --git a/firmware/fx2/utils/build_eeprom.py b/firmware/fx2/utils/build_eeprom.py
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+++ b/firmware/fx2/utils/build_eeprom.py
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+#!/usr/bin/env python
+#
+# Copyright 2004,2006 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+import re
+import sys
+import os, os.path
+from optparse import OptionParser
+
+# USB Vendor and Product ID's
+
+VID = 0xfffe # Free Software Folks
+
+
+def msb (x):
+ return (x >> 8) & 0xff
+
+def lsb (x):
+ return x & 0xff
+
+def build_eeprom_image (filename, rev):
+ """Build a ``C2 Load'' EEPROM image.
+
+ For details on this format, see section 3.4.3 of
+ the EZ-USB FX2 Technical Reference Manual
+ """
+ # get the code we want to run
+ f = open(filename, 'rb')
+ bytes = f.read()
+
+ devid = 4 #for compatibility
+ start_addr = 0 #prove me wrong
+
+ if(rev == 1):
+ PID = 0x0002 #USRP1
+ else:
+ PID = 0x0003 #USRP1P
+
+ rom_header = [
+ 0xC2, # boot from EEPROM
+ lsb (VID),
+ msb (VID),
+ lsb (PID),
+ msb (PID),
+ lsb (devid),
+ msb (devid),
+ 0 # configuration byte
+ ]
+
+ # 4 byte header that indicates where to load
+ # the immediately follow code bytes.
+ code_header = [
+ msb (len (bytes)),
+ lsb (len (bytes)),
+ msb (start_addr),
+ lsb (start_addr)
+ ]
+
+ # writes 0 to CPUCS reg (brings FX2 out of reset)
+ trailer = [
+ 0x80,
+ 0x01,
+ 0xe6,
+ 0x00,
+ 0x00
+ ]
+
+ image = rom_header + code_header + [ord(c) for c in bytes] + trailer
+
+ assert (len (image) <= 256)
+ return image
+
+if __name__ == '__main__':
+ usage = "usage: %prog -r REV [options] bootfile.bin outfile.bin"
+ parser = OptionParser (usage=usage)
+ parser.add_option ("-r", "--rev", type="int", default=-1,
+ help="Specify USRP revision, 1 for USRP1, 2 for USRP1P")
+ (options, args) = parser.parse_args ()
+ if len (args) != 2:
+ parser.print_help ()
+ sys.exit (1)
+ if options.rev < 0:
+ sys.stderr.write (
+ "You must specify the USRP revision number (2 or 4) with -r REV\n")
+ sys.exit (1)
+
+ infile = args[0]
+ outfile = args[1]
+
+ image = "".join(chr(c) for c in build_eeprom_image(infile, options.rev))
+
+ f = open(outfile, 'wb')
+ f.write(str(image))
+ f.close()