ardupilot/Tools/scripts/make_intel_hex.py

52 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python
import sys, os, shutil, struct
import intelhex
# make two intel hex files, one including bootloader and one without
# for loading with DFU based tools
if len(sys.argv) != 4:
print("Usage: make_intel_hex.py BINFILE BOOTLOADER RESERVE_KB")
sys.exit(1)
scripts = os.path.dirname(__file__)
binfile = sys.argv[1]
bootloaderfile = sys.argv[2]
reserve_kb = int(sys.argv[3])
(root,ext) = os.path.splitext(binfile)
hexfile = root + ".hex"
hex_with_bl = root + "_with_bl.hex"
if not os.path.exists(binfile):
print("Can't find bin file %s" % binfile)
sys.exit(1)
if not os.path.exists(bootloaderfile):
print("Can't find bootloader file %s" % bootloaderfile)
sys.exit(1)
blimage = bytes(open(bootloaderfile, "rb").read())
blimage += bytes(struct.pack('B',255) * (reserve_kb * 1024 - len(blimage)))
if reserve_kb > 0 and len(blimage) != reserve_kb * 1024:
print("Bad blimage size %u (want %u)" % (len(blimage), reserve_kb * 1024))
sys.exit(1)
appimage = bytes(open(binfile,"rb").read())
with_bl = blimage + appimage
tmpfile = hexfile + ".tmp"
open(tmpfile, "wb").write(appimage)
intelhex.bin2hex(tmpfile, hexfile, offset=(0x08000000 + reserve_kb*1024))
if reserve_kb > 0:
open(tmpfile, "wb").write(with_bl)
intelhex.bin2hex(tmpfile, hex_with_bl, offset=0x08000000)
os.unlink(tmpfile)